./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_77-tricky_address4_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_77-tricky_address4_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 dce9d71ca8bbe247a74e6b2653e5cdb882c6b8b5d902edf534df70d90ee806fe --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:28:34,328 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:28:34,405 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-24 15:28:34,410 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:28:34,411 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:28:34,439 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:28:34,440 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:28:34,440 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:28:34,440 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:28:34,441 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:28:34,441 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:28:34,441 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:28:34,441 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:28:34,442 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:28:34,442 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:28:34,442 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:28:34,443 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:28:34,443 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:28:34,443 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:28:34,444 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:28:34,444 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:28:34,444 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:28:34,445 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-24 15:28:34,445 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:28:34,445 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:28:34,445 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:28:34,449 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:28:34,449 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:28:34,450 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:28:34,450 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:28:34,450 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:28:34,450 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:28:34,450 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:28:34,450 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:28:34,451 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 15:28:34,451 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:28:34,451 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:28:34,451 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:28:34,451 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:28:34,451 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:28:34,451 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:28:34,452 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dce9d71ca8bbe247a74e6b2653e5cdb882c6b8b5d902edf534df70d90ee806fe [2024-10-24 15:28:34,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:28:34,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:28:34,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:28:34,714 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:28:34,714 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:28:34,715 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_77-tricky_address4_racing.i [2024-10-24 15:28:36,172 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:28:36,453 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:28:36,454 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_77-tricky_address4_racing.i [2024-10-24 15:28:36,468 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba4c45c74/921ea9d30d8f42c7aff049db1a8fa8fe/FLAG9c44b9bb3 [2024-10-24 15:28:36,483 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba4c45c74/921ea9d30d8f42c7aff049db1a8fa8fe [2024-10-24 15:28:36,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:28:36,487 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:28:36,492 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:28:36,492 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:28:36,496 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:28:36,500 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:28:36" (1/1) ... [2024-10-24 15:28:36,501 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@698e637a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:36, skipping insertion in model container [2024-10-24 15:28:36,501 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:28:36" (1/1) ... [2024-10-24 15:28:36,551 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:28:36,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:28:36,954 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:28:37,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:28:37,065 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:28:37,066 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:37 WrapperNode [2024-10-24 15:28:37,066 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:28:37,067 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:28:37,068 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:28:37,068 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:28:37,073 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:37" (1/1) ... [2024-10-24 15:28:37,095 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:37" (1/1) ... [2024-10-24 15:28:37,126 INFO L138 Inliner]: procedures = 271, calls = 50, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 289 [2024-10-24 15:28:37,127 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:28:37,128 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:28:37,128 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:28:37,128 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:28:37,135 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:37" (1/1) ... [2024-10-24 15:28:37,136 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:37" (1/1) ... [2024-10-24 15:28:37,147 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:37" (1/1) ... [2024-10-24 15:28:37,148 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:37" (1/1) ... [2024-10-24 15:28:37,163 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:37" (1/1) ... [2024-10-24 15:28:37,197 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:37" (1/1) ... [2024-10-24 15:28:37,199 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:37" (1/1) ... [2024-10-24 15:28:37,200 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:37" (1/1) ... [2024-10-24 15:28:37,216 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:28:37,216 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:28:37,217 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:28:37,217 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:28:37,217 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:37" (1/1) ... [2024-10-24 15:28:37,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:28:37,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:28:37,276 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 15:28:37,279 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 15:28:37,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 15:28:37,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 15:28:37,333 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-24 15:28:37,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-24 15:28:37,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-24 15:28:37,333 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-24 15:28:37,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:28:37,333 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-24 15:28:37,333 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-24 15:28:37,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-24 15:28:37,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:28:37,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:28:37,335 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 15:28:37,460 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:28:37,462 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:28:37,893 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 15:28:37,894 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:28:37,940 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:28:37,940 INFO L314 CfgBuilder]: Removed 23 assume(true) statements. [2024-10-24 15:28:37,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:28:37 BoogieIcfgContainer [2024-10-24 15:28:37,941 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:28:37,943 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:28:37,943 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:28:37,946 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:28:37,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:28:36" (1/3) ... [2024-10-24 15:28:37,947 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f1222e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:28:37, skipping insertion in model container [2024-10-24 15:28:37,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:28:37" (2/3) ... [2024-10-24 15:28:37,947 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f1222e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:28:37, skipping insertion in model container [2024-10-24 15:28:37,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:28:37" (3/3) ... [2024-10-24 15:28:37,948 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_77-tricky_address4_racing.i [2024-10-24 15:28:37,960 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:28:37,960 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-10-24 15:28:37,960 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 15:28:38,030 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-24 15:28:38,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 265 places, 295 transitions, 597 flow [2024-10-24 15:28:38,207 INFO L124 PetriNetUnfolderBase]: 48/424 cut-off events. [2024-10-24 15:28:38,207 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:28:38,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 429 conditions, 424 events. 48/424 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1671 event pairs, 0 based on Foata normal form. 0/354 useless extension candidates. Maximal degree in co-relation 248. Up to 8 conditions per place. [2024-10-24 15:28:38,220 INFO L82 GeneralOperation]: Start removeDead. Operand has 265 places, 295 transitions, 597 flow [2024-10-24 15:28:38,230 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 265 places, 295 transitions, 597 flow [2024-10-24 15:28:38,241 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:28:38,249 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;@5a82b354, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:28:38,249 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-10-24 15:28:38,262 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:28:38,262 INFO L124 PetriNetUnfolderBase]: 8/74 cut-off events. [2024-10-24 15:28:38,263 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:28:38,263 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:38,263 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:28:38,264 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-24 15:28:38,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:38,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1287411917, now seen corresponding path program 1 times [2024-10-24 15:28:38,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:38,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946835523] [2024-10-24 15:28:38,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:38,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:38,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:38,520 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 15:28:38,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:38,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946835523] [2024-10-24 15:28:38,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946835523] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:28:38,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:28:38,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:28:38,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430854918] [2024-10-24 15:28:38,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:28:38,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:28:38,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:38,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:28:38,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:28:38,574 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 295 [2024-10-24 15:28:38,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 295 transitions, 597 flow. Second operand has 3 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 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 15:28:38,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:38,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 295 [2024-10-24 15:28:38,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:38,830 INFO L124 PetriNetUnfolderBase]: 85/1251 cut-off events. [2024-10-24 15:28:38,830 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-24 15:28:38,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1435 conditions, 1251 events. 85/1251 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8287 event pairs, 72 based on Foata normal form. 205/1340 useless extension candidates. Maximal degree in co-relation 1250. Up to 178 conditions per place. [2024-10-24 15:28:38,841 INFO L140 encePairwiseOnDemand]: 263/295 looper letters, 23 selfloop transitions, 2 changer transitions 1/263 dead transitions. [2024-10-24 15:28:38,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 263 transitions, 583 flow [2024-10-24 15:28:38,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:28:38,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:28:38,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 776 transitions. [2024-10-24 15:28:38,858 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8768361581920904 [2024-10-24 15:28:38,862 INFO L175 Difference]: Start difference. First operand has 265 places, 295 transitions, 597 flow. Second operand 3 states and 776 transitions. [2024-10-24 15:28:38,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 263 transitions, 583 flow [2024-10-24 15:28:38,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 263 transitions, 583 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:28:38,871 INFO L231 Difference]: Finished difference. Result has 264 places, 262 transitions, 541 flow [2024-10-24 15:28:38,874 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=531, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=541, PETRI_PLACES=264, PETRI_TRANSITIONS=262} [2024-10-24 15:28:38,878 INFO L277 CegarLoopForPetriNet]: 265 programPoint places, -1 predicate places. [2024-10-24 15:28:38,878 INFO L471 AbstractCegarLoop]: Abstraction has has 264 places, 262 transitions, 541 flow [2024-10-24 15:28:38,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 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 15:28:38,879 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:38,879 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:28:38,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 15:28:38,880 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-24 15:28:38,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:38,881 INFO L85 PathProgramCache]: Analyzing trace with hash -330683134, now seen corresponding path program 1 times [2024-10-24 15:28:38,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:38,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569882193] [2024-10-24 15:28:38,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:38,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:38,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:39,080 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 15:28:39,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:39,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569882193] [2024-10-24 15:28:39,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569882193] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:28:39,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358895425] [2024-10-24 15:28:39,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:39,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:39,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:28:39,087 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 15:28:39,088 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 15:28:39,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:39,173 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 15:28:39,177 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:28:39,229 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 15:28:39,233 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:28:39,276 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 15:28:39,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358895425] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:28:39,277 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 15:28:39,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-24 15:28:39,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617740881] [2024-10-24 15:28:39,278 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 15:28:39,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 15:28:39,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:39,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 15:28:39,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-24 15:28:39,307 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 295 [2024-10-24 15:28:39,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 262 transitions, 541 flow. Second operand has 10 states, 10 states have (on average 238.8) internal successors, (2388), 10 states have internal predecessors, (2388), 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 15:28:39,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:39,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 295 [2024-10-24 15:28:39,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:39,609 INFO L124 PetriNetUnfolderBase]: 85/1257 cut-off events. [2024-10-24 15:28:39,609 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-24 15:28:39,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1460 conditions, 1257 events. 85/1257 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8330 event pairs, 72 based on Foata normal form. 2/1144 useless extension candidates. Maximal degree in co-relation 1424. Up to 178 conditions per place. [2024-10-24 15:28:39,616 INFO L140 encePairwiseOnDemand]: 289/295 looper letters, 27 selfloop transitions, 9 changer transitions 0/270 dead transitions. [2024-10-24 15:28:39,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 270 transitions, 631 flow [2024-10-24 15:28:39,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 15:28:39,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 15:28:39,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2171 transitions. [2024-10-24 15:28:39,622 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8177024482109227 [2024-10-24 15:28:39,622 INFO L175 Difference]: Start difference. First operand has 264 places, 262 transitions, 541 flow. Second operand 9 states and 2171 transitions. [2024-10-24 15:28:39,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 270 transitions, 631 flow [2024-10-24 15:28:39,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 270 transitions, 629 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:28:39,627 INFO L231 Difference]: Finished difference. Result has 273 places, 268 transitions, 589 flow [2024-10-24 15:28:39,628 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=539, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=589, PETRI_PLACES=273, PETRI_TRANSITIONS=268} [2024-10-24 15:28:39,628 INFO L277 CegarLoopForPetriNet]: 265 programPoint places, 8 predicate places. [2024-10-24 15:28:39,629 INFO L471 AbstractCegarLoop]: Abstraction has has 273 places, 268 transitions, 589 flow [2024-10-24 15:28:39,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 238.8) internal successors, (2388), 10 states have internal predecessors, (2388), 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 15:28:39,630 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:39,630 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:28:39,648 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 15:28:39,834 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 15:28:39,835 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-24 15:28:39,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:39,835 INFO L85 PathProgramCache]: Analyzing trace with hash 471515042, now seen corresponding path program 2 times [2024-10-24 15:28:39,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:39,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747348277] [2024-10-24 15:28:39,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:39,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:39,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:40,087 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 15:28:40,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:40,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747348277] [2024-10-24 15:28:40,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747348277] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:28:40,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1374081353] [2024-10-24 15:28:40,088 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 15:28:40,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:40,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:28:40,090 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 15:28:40,093 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 15:28:40,162 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 15:28:40,162 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:28:40,163 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-24 15:28:40,166 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:28:40,234 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 15:28:40,268 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 15:28:40,316 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:28:40,317 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 15:28:40,366 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:28:40,366 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 15:28:40,402 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 15:28:40,403 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:28:40,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1374081353] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:28:40,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 15:28:40,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-10-24 15:28:40,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723453827] [2024-10-24 15:28:40,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:28:40,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 15:28:40,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:40,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 15:28:40,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-10-24 15:28:40,706 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 295 [2024-10-24 15:28:40,708 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 268 transitions, 589 flow. Second operand has 8 states, 8 states have (on average 188.125) internal successors, (1505), 8 states have internal predecessors, (1505), 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 15:28:40,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:40,708 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 295 [2024-10-24 15:28:40,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:41,266 INFO L124 PetriNetUnfolderBase]: 1305/4921 cut-off events. [2024-10-24 15:28:41,267 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-24 15:28:41,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7545 conditions, 4921 events. 1305/4921 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 43609 event pairs, 1025 based on Foata normal form. 1/4478 useless extension candidates. Maximal degree in co-relation 7480. Up to 2436 conditions per place. [2024-10-24 15:28:41,287 INFO L140 encePairwiseOnDemand]: 283/295 looper letters, 127 selfloop transitions, 11 changer transitions 2/331 dead transitions. [2024-10-24 15:28:41,288 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 331 transitions, 995 flow [2024-10-24 15:28:41,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 15:28:41,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 15:28:41,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1638 transitions. [2024-10-24 15:28:41,291 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6940677966101695 [2024-10-24 15:28:41,291 INFO L175 Difference]: Start difference. First operand has 273 places, 268 transitions, 589 flow. Second operand 8 states and 1638 transitions. [2024-10-24 15:28:41,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 331 transitions, 995 flow [2024-10-24 15:28:41,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 331 transitions, 989 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-24 15:28:41,298 INFO L231 Difference]: Finished difference. Result has 284 places, 275 transitions, 650 flow [2024-10-24 15:28:41,298 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=583, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=650, PETRI_PLACES=284, PETRI_TRANSITIONS=275} [2024-10-24 15:28:41,299 INFO L277 CegarLoopForPetriNet]: 265 programPoint places, 19 predicate places. [2024-10-24 15:28:41,300 INFO L471 AbstractCegarLoop]: Abstraction has has 284 places, 275 transitions, 650 flow [2024-10-24 15:28:41,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 188.125) internal successors, (1505), 8 states have internal predecessors, (1505), 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 15:28:41,301 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:41,301 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:28:41,317 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 15:28:41,505 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 15:28:41,506 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-24 15:28:41,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:41,507 INFO L85 PathProgramCache]: Analyzing trace with hash 802124064, now seen corresponding path program 1 times [2024-10-24 15:28:41,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:41,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442331478] [2024-10-24 15:28:41,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:41,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:41,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:41,693 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 15:28:41,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:41,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442331478] [2024-10-24 15:28:41,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442331478] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:28:41,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748994267] [2024-10-24 15:28:41,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:41,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:41,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:28:41,696 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 15:28:41,698 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 15:28:41,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:41,777 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 15:28:41,779 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:28:41,817 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 15:28:41,818 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:28:41,889 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 15:28:41,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748994267] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:28:41,890 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 15:28:41,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-24 15:28:41,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660607245] [2024-10-24 15:28:41,890 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 15:28:41,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-24 15:28:41,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:41,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-24 15:28:41,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-24 15:28:41,921 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 295 [2024-10-24 15:28:41,925 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 275 transitions, 650 flow. Second operand has 18 states, 18 states have (on average 238.94444444444446) internal successors, (4301), 18 states have internal predecessors, (4301), 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 15:28:41,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:41,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 295 [2024-10-24 15:28:41,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:42,199 INFO L124 PetriNetUnfolderBase]: 88/1266 cut-off events. [2024-10-24 15:28:42,200 INFO L125 PetriNetUnfolderBase]: For 30/34 co-relation queries the response was YES. [2024-10-24 15:28:42,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1572 conditions, 1266 events. 88/1266 cut-off events. For 30/34 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8500 event pairs, 74 based on Foata normal form. 4/1158 useless extension candidates. Maximal degree in co-relation 1430. Up to 175 conditions per place. [2024-10-24 15:28:42,206 INFO L140 encePairwiseOnDemand]: 289/295 looper letters, 31 selfloop transitions, 21 changer transitions 0/293 dead transitions. [2024-10-24 15:28:42,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 293 transitions, 842 flow [2024-10-24 15:28:42,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-24 15:28:42,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-24 15:28:42,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5033 transitions. [2024-10-24 15:28:42,213 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8124293785310734 [2024-10-24 15:28:42,213 INFO L175 Difference]: Start difference. First operand has 284 places, 275 transitions, 650 flow. Second operand 21 states and 5033 transitions. [2024-10-24 15:28:42,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 293 transitions, 842 flow [2024-10-24 15:28:42,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 293 transitions, 835 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:28:42,218 INFO L231 Difference]: Finished difference. Result has 307 places, 288 transitions, 773 flow [2024-10-24 15:28:42,218 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=643, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=773, PETRI_PLACES=307, PETRI_TRANSITIONS=288} [2024-10-24 15:28:42,219 INFO L277 CegarLoopForPetriNet]: 265 programPoint places, 42 predicate places. [2024-10-24 15:28:42,219 INFO L471 AbstractCegarLoop]: Abstraction has has 307 places, 288 transitions, 773 flow [2024-10-24 15:28:42,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 238.94444444444446) internal successors, (4301), 18 states have internal predecessors, (4301), 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 15:28:42,222 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:42,222 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:28:42,236 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 15:28:42,426 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 15:28:42,427 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-24 15:28:42,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:42,427 INFO L85 PathProgramCache]: Analyzing trace with hash 979242592, now seen corresponding path program 2 times [2024-10-24 15:28:42,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:42,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869811175] [2024-10-24 15:28:42,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:42,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:42,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:42,738 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 15:28:42,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:42,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869811175] [2024-10-24 15:28:42,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869811175] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:28:42,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992665409] [2024-10-24 15:28:42,738 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 15:28:42,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:42,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:28:42,744 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 15:28:42,746 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 15:28:42,818 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 15:28:42,819 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:28:42,820 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-24 15:28:42,824 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:28:42,838 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 15:28:42,861 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 15:28:42,898 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:28:42,899 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 15:28:42,948 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:28:42,948 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 15:28:42,996 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 15:28:42,996 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:28:42,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992665409] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:28:42,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 15:28:42,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-24 15:28:42,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416564888] [2024-10-24 15:28:42,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:28:42,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:28:42,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:42,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:28:42,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-24 15:28:43,290 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 295 [2024-10-24 15:28:43,291 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 288 transitions, 773 flow. Second operand has 6 states, 6 states have (on average 190.66666666666666) internal successors, (1144), 6 states have internal predecessors, (1144), 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 15:28:43,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:43,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 295 [2024-10-24 15:28:43,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:44,113 INFO L124 PetriNetUnfolderBase]: 1363/5180 cut-off events. [2024-10-24 15:28:44,113 INFO L125 PetriNetUnfolderBase]: For 284/284 co-relation queries the response was YES. [2024-10-24 15:28:44,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8363 conditions, 5180 events. 1363/5180 cut-off events. For 284/284 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 46223 event pairs, 1033 based on Foata normal form. 29/4764 useless extension candidates. Maximal degree in co-relation 8214. Up to 2519 conditions per place. [2024-10-24 15:28:44,142 INFO L140 encePairwiseOnDemand]: 268/295 looper letters, 107 selfloop transitions, 92 changer transitions 0/404 dead transitions. [2024-10-24 15:28:44,142 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 404 transitions, 1425 flow [2024-10-24 15:28:44,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:28:44,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:28:44,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1322 transitions. [2024-10-24 15:28:44,145 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7468926553672316 [2024-10-24 15:28:44,145 INFO L175 Difference]: Start difference. First operand has 307 places, 288 transitions, 773 flow. Second operand 6 states and 1322 transitions. [2024-10-24 15:28:44,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 404 transitions, 1425 flow [2024-10-24 15:28:44,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 404 transitions, 1401 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-24 15:28:44,159 INFO L231 Difference]: Finished difference. Result has 311 places, 372 transitions, 1357 flow [2024-10-24 15:28:44,160 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=749, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1357, PETRI_PLACES=311, PETRI_TRANSITIONS=372} [2024-10-24 15:28:44,160 INFO L277 CegarLoopForPetriNet]: 265 programPoint places, 46 predicate places. [2024-10-24 15:28:44,161 INFO L471 AbstractCegarLoop]: Abstraction has has 311 places, 372 transitions, 1357 flow [2024-10-24 15:28:44,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 190.66666666666666) internal successors, (1144), 6 states have internal predecessors, (1144), 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 15:28:44,162 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:44,162 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:28:44,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-24 15:28:44,366 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 15:28:44,367 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-24 15:28:44,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:44,368 INFO L85 PathProgramCache]: Analyzing trace with hash 291750212, now seen corresponding path program 1 times [2024-10-24 15:28:44,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:44,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469934828] [2024-10-24 15:28:44,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:44,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:44,687 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 15:28:44,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:44,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469934828] [2024-10-24 15:28:44,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469934828] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:28:44,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856244832] [2024-10-24 15:28:44,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:44,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:44,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:28:44,691 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 15:28:44,699 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 15:28:44,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:44,830 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-24 15:28:44,832 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:28:44,970 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 15:28:44,970 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:28:45,232 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 15:28:45,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856244832] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:28:45,233 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 15:28:45,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-10-24 15:28:45,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591382927] [2024-10-24 15:28:45,233 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 15:28:45,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 15:28:45,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:45,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 15:28:45,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-24 15:28:45,268 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 295 [2024-10-24 15:28:45,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 372 transitions, 1357 flow. Second operand has 23 states, 23 states have (on average 239.04347826086956) internal successors, (5498), 23 states have internal predecessors, (5498), 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 15:28:45,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:45,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 295 [2024-10-24 15:28:45,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:45,741 INFO L124 PetriNetUnfolderBase]: 258/1933 cut-off events. [2024-10-24 15:28:45,742 INFO L125 PetriNetUnfolderBase]: For 480/536 co-relation queries the response was YES. [2024-10-24 15:28:45,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3140 conditions, 1933 events. 258/1933 cut-off events. For 480/536 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 14519 event pairs, 72 based on Foata normal form. 3/1794 useless extension candidates. Maximal degree in co-relation 2911. Up to 232 conditions per place. [2024-10-24 15:28:45,754 INFO L140 encePairwiseOnDemand]: 289/295 looper letters, 34 selfloop transitions, 30 changer transitions 0/389 dead transitions. [2024-10-24 15:28:45,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 389 transitions, 1607 flow [2024-10-24 15:28:45,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-24 15:28:45,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-24 15:28:45,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 7177 transitions. [2024-10-24 15:28:45,764 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8109604519774011 [2024-10-24 15:28:45,764 INFO L175 Difference]: Start difference. First operand has 311 places, 372 transitions, 1357 flow. Second operand 30 states and 7177 transitions. [2024-10-24 15:28:45,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 389 transitions, 1607 flow [2024-10-24 15:28:45,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 389 transitions, 1589 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-10-24 15:28:45,773 INFO L231 Difference]: Finished difference. Result has 344 places, 382 transitions, 1491 flow [2024-10-24 15:28:45,774 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=1339, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1491, PETRI_PLACES=344, PETRI_TRANSITIONS=382} [2024-10-24 15:28:45,774 INFO L277 CegarLoopForPetriNet]: 265 programPoint places, 79 predicate places. [2024-10-24 15:28:45,775 INFO L471 AbstractCegarLoop]: Abstraction has has 344 places, 382 transitions, 1491 flow [2024-10-24 15:28:45,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 239.04347826086956) internal successors, (5498), 23 states have internal predecessors, (5498), 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 15:28:45,777 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:45,777 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:28:45,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-24 15:28:45,981 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 15:28:45,982 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-24 15:28:45,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:45,983 INFO L85 PathProgramCache]: Analyzing trace with hash -896090125, now seen corresponding path program 2 times [2024-10-24 15:28:45,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:45,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848776786] [2024-10-24 15:28:45,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:45,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:46,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 15:28:46,008 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 15:28:46,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 15:28:46,040 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 15:28:46,040 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 15:28:46,041 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-10-24 15:28:46,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-10-24 15:28:46,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-10-24 15:28:46,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-10-24 15:28:46,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-10-24 15:28:46,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-10-24 15:28:46,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-10-24 15:28:46,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-10-24 15:28:46,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-10-24 15:28:46,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-10-24 15:28:46,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-10-24 15:28:46,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-10-24 15:28:46,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-10-24 15:28:46,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-10-24 15:28:46,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-10-24 15:28:46,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-10-24 15:28:46,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-10-24 15:28:46,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-10-24 15:28:46,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 15:28:46,048 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1] [2024-10-24 15:28:46,049 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-24 15:28:46,049 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-24 15:28:46,080 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-24 15:28:46,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 370 places, 413 transitions, 842 flow [2024-10-24 15:28:46,145 INFO L124 PetriNetUnfolderBase]: 80/699 cut-off events. [2024-10-24 15:28:46,146 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2024-10-24 15:28:46,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 711 conditions, 699 events. 80/699 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3358 event pairs, 0 based on Foata normal form. 0/583 useless extension candidates. Maximal degree in co-relation 426. Up to 12 conditions per place. [2024-10-24 15:28:46,152 INFO L82 GeneralOperation]: Start removeDead. Operand has 370 places, 413 transitions, 842 flow [2024-10-24 15:28:46,157 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 370 places, 413 transitions, 842 flow [2024-10-24 15:28:46,158 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:28:46,159 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;@5a82b354, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:28:46,159 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-10-24 15:28:46,162 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:28:46,162 INFO L124 PetriNetUnfolderBase]: 8/74 cut-off events. [2024-10-24 15:28:46,162 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:28:46,162 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:46,162 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:28:46,162 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-24 15:28:46,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:46,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1929003184, now seen corresponding path program 1 times [2024-10-24 15:28:46,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:46,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726916869] [2024-10-24 15:28:46,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:46,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:46,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:46,181 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 15:28:46,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:46,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726916869] [2024-10-24 15:28:46,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726916869] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:28:46,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:28:46,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:28:46,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480431185] [2024-10-24 15:28:46,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:28:46,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:28:46,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:46,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:28:46,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:28:46,194 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 413 [2024-10-24 15:28:46,195 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 413 transitions, 842 flow. Second operand has 3 states, 3 states have (on average 335.3333333333333) internal successors, (1006), 3 states have internal predecessors, (1006), 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 15:28:46,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:46,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 413 [2024-10-24 15:28:46,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:47,706 INFO L124 PetriNetUnfolderBase]: 1580/11854 cut-off events. [2024-10-24 15:28:47,707 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2024-10-24 15:28:47,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14315 conditions, 11854 events. 1580/11854 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 142667 event pairs, 1464 based on Foata normal form. 2927/13876 useless extension candidates. Maximal degree in co-relation 12718. Up to 2408 conditions per place. [2024-10-24 15:28:47,789 INFO L140 encePairwiseOnDemand]: 368/413 looper letters, 33 selfloop transitions, 2 changer transitions 1/366 dead transitions. [2024-10-24 15:28:47,790 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 366 transitions, 818 flow [2024-10-24 15:28:47,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:28:47,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:28:47,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1081 transitions. [2024-10-24 15:28:47,792 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8724778046811945 [2024-10-24 15:28:47,792 INFO L175 Difference]: Start difference. First operand has 370 places, 413 transitions, 842 flow. Second operand 3 states and 1081 transitions. [2024-10-24 15:28:47,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 366 transitions, 818 flow [2024-10-24 15:28:47,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 366 transitions, 818 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:28:47,796 INFO L231 Difference]: Finished difference. Result has 367 places, 365 transitions, 756 flow [2024-10-24 15:28:47,797 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=413, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=363, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=756, PETRI_PLACES=367, PETRI_TRANSITIONS=365} [2024-10-24 15:28:47,798 INFO L277 CegarLoopForPetriNet]: 370 programPoint places, -3 predicate places. [2024-10-24 15:28:47,799 INFO L471 AbstractCegarLoop]: Abstraction has has 367 places, 365 transitions, 756 flow [2024-10-24 15:28:47,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 335.3333333333333) internal successors, (1006), 3 states have internal predecessors, (1006), 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 15:28:47,800 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:47,800 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:28:47,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 15:28:47,800 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-24 15:28:47,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:47,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1869159422, now seen corresponding path program 1 times [2024-10-24 15:28:47,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:47,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015655078] [2024-10-24 15:28:47,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:47,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:47,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:47,843 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 15:28:47,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:47,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015655078] [2024-10-24 15:28:47,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015655078] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:28:47,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843502836] [2024-10-24 15:28:47,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:47,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:47,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:28:47,845 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 15:28:47,851 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 15:28:48,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:48,037 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 15:28:48,039 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:28:48,058 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 15:28:48,058 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:28:48,084 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 15:28:48,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843502836] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:28:48,085 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 15:28:48,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-24 15:28:48,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142952352] [2024-10-24 15:28:48,087 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 15:28:48,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 15:28:48,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:48,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 15:28:48,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-24 15:28:48,111 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 413 [2024-10-24 15:28:48,114 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 365 transitions, 756 flow. Second operand has 10 states, 10 states have (on average 332.8) internal successors, (3328), 10 states have internal predecessors, (3328), 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 15:28:48,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:48,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 413 [2024-10-24 15:28:48,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:28:49,723 INFO L124 PetriNetUnfolderBase]: 1580/11860 cut-off events. [2024-10-24 15:28:49,723 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2024-10-24 15:28:49,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14340 conditions, 11860 events. 1580/11860 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 142561 event pairs, 1464 based on Foata normal form. 2/10958 useless extension candidates. Maximal degree in co-relation 14303. Up to 2408 conditions per place. [2024-10-24 15:28:49,791 INFO L140 encePairwiseOnDemand]: 407/413 looper letters, 37 selfloop transitions, 9 changer transitions 0/373 dead transitions. [2024-10-24 15:28:49,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 373 transitions, 866 flow [2024-10-24 15:28:49,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 15:28:49,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 15:28:49,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3027 transitions. [2024-10-24 15:28:49,796 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.814366424535916 [2024-10-24 15:28:49,796 INFO L175 Difference]: Start difference. First operand has 367 places, 365 transitions, 756 flow. Second operand 9 states and 3027 transitions. [2024-10-24 15:28:49,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 374 places, 373 transitions, 866 flow [2024-10-24 15:28:49,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 373 transitions, 864 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:28:49,800 INFO L231 Difference]: Finished difference. Result has 376 places, 371 transitions, 804 flow [2024-10-24 15:28:49,801 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=413, PETRI_DIFFERENCE_MINUEND_FLOW=754, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=804, PETRI_PLACES=376, PETRI_TRANSITIONS=371} [2024-10-24 15:28:49,801 INFO L277 CegarLoopForPetriNet]: 370 programPoint places, 6 predicate places. [2024-10-24 15:28:49,802 INFO L471 AbstractCegarLoop]: Abstraction has has 376 places, 371 transitions, 804 flow [2024-10-24 15:28:49,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 332.8) internal successors, (3328), 10 states have internal predecessors, (3328), 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 15:28:49,803 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:28:49,803 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:28:49,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-24 15:28:50,007 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 15:28:50,007 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-24 15:28:50,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:28:50,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1610852546, now seen corresponding path program 2 times [2024-10-24 15:28:50,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:28:50,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447617580] [2024-10-24 15:28:50,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:28:50,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:28:50,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:28:50,106 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 15:28:50,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:28:50,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447617580] [2024-10-24 15:28:50,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447617580] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:28:50,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91554171] [2024-10-24 15:28:50,107 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 15:28:50,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:28:50,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:28:50,110 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 15:28:50,122 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 15:28:50,195 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 15:28:50,195 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:28:50,196 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-24 15:28:50,197 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:28:50,239 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 15:28:50,257 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 15:28:50,282 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:28:50,283 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 15:28:50,319 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:28:50,320 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 15:28:50,345 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 15:28:50,346 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:28:50,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91554171] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:28:50,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 15:28:50,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-10-24 15:28:50,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705756072] [2024-10-24 15:28:50,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:28:50,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 15:28:50,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:28:50,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 15:28:50,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-10-24 15:28:50,800 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 413 [2024-10-24 15:28:50,802 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 371 transitions, 804 flow. Second operand has 8 states, 8 states have (on average 262.125) internal successors, (2097), 8 states have internal predecessors, (2097), 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 15:28:50,802 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:28:50,802 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 413 [2024-10-24 15:28:50,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:29:15,150 INFO L124 PetriNetUnfolderBase]: 77253/188802 cut-off events. [2024-10-24 15:29:15,151 INFO L125 PetriNetUnfolderBase]: For 296/296 co-relation queries the response was YES. [2024-10-24 15:29:15,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304538 conditions, 188802 events. 77253/188802 cut-off events. For 296/296 co-relation queries the response was YES. Maximal size of possible extension queue 3719. Compared 2541365 event pairs, 70336 based on Foata normal form. 1/174105 useless extension candidates. Maximal degree in co-relation 304472. Up to 110272 conditions per place. [2024-10-24 15:29:16,460 INFO L140 encePairwiseOnDemand]: 401/413 looper letters, 188 selfloop transitions, 11 changer transitions 0/463 dead transitions. [2024-10-24 15:29:16,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 463 transitions, 1386 flow [2024-10-24 15:29:16,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 15:29:16,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 15:29:16,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2289 transitions. [2024-10-24 15:29:16,471 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6927966101694916 [2024-10-24 15:29:16,471 INFO L175 Difference]: Start difference. First operand has 376 places, 371 transitions, 804 flow. Second operand 8 states and 2289 transitions. [2024-10-24 15:29:16,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 463 transitions, 1386 flow [2024-10-24 15:29:16,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 463 transitions, 1380 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-24 15:29:16,480 INFO L231 Difference]: Finished difference. Result has 387 places, 379 transitions, 869 flow [2024-10-24 15:29:16,480 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=413, PETRI_DIFFERENCE_MINUEND_FLOW=798, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=869, PETRI_PLACES=387, PETRI_TRANSITIONS=379} [2024-10-24 15:29:16,482 INFO L277 CegarLoopForPetriNet]: 370 programPoint places, 17 predicate places. [2024-10-24 15:29:16,482 INFO L471 AbstractCegarLoop]: Abstraction has has 387 places, 379 transitions, 869 flow [2024-10-24 15:29:16,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 262.125) internal successors, (2097), 8 states have internal predecessors, (2097), 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 15:29:16,483 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:29:16,483 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:29:16,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-24 15:29:16,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:29:16,688 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-24 15:29:16,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:29:16,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1561714772, now seen corresponding path program 1 times [2024-10-24 15:29:16,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:29:16,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553418295] [2024-10-24 15:29:16,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:29:16,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:29:16,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:29:16,789 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 15:29:16,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:29:16,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553418295] [2024-10-24 15:29:16,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553418295] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:29:16,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431544480] [2024-10-24 15:29:16,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:29:16,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:29:16,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:29:16,792 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:29:16,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-24 15:29:16,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:29:16,880 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 15:29:16,881 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:29:16,911 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 15:29:16,912 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:29:16,976 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 15:29:16,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431544480] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:29:16,977 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 15:29:16,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-24 15:29:16,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273441605] [2024-10-24 15:29:16,977 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 15:29:16,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-24 15:29:16,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:29:16,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-24 15:29:16,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-24 15:29:17,002 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 413 [2024-10-24 15:29:17,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 379 transitions, 869 flow. Second operand has 18 states, 18 states have (on average 332.94444444444446) internal successors, (5993), 18 states have internal predecessors, (5993), 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 15:29:17,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:29:17,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 413 [2024-10-24 15:29:17,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:29:19,514 INFO L124 PetriNetUnfolderBase]: 1611/12112 cut-off events. [2024-10-24 15:29:19,514 INFO L125 PetriNetUnfolderBase]: For 115/119 co-relation queries the response was YES. [2024-10-24 15:29:19,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14964 conditions, 12112 events. 1611/12112 cut-off events. For 115/119 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 146952 event pairs, 1492 based on Foata normal form. 4/11183 useless extension candidates. Maximal degree in co-relation 14821. Up to 2431 conditions per place. [2024-10-24 15:29:19,583 INFO L140 encePairwiseOnDemand]: 407/413 looper letters, 41 selfloop transitions, 21 changer transitions 0/397 dead transitions. [2024-10-24 15:29:19,583 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 397 transitions, 1081 flow [2024-10-24 15:29:19,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-24 15:29:19,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-24 15:29:19,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 7017 transitions. [2024-10-24 15:29:19,591 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8090626080940851 [2024-10-24 15:29:19,591 INFO L175 Difference]: Start difference. First operand has 387 places, 379 transitions, 869 flow. Second operand 21 states and 7017 transitions. [2024-10-24 15:29:19,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 397 transitions, 1081 flow [2024-10-24 15:29:19,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 397 transitions, 1079 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:29:19,598 INFO L231 Difference]: Finished difference. Result has 411 places, 392 transitions, 997 flow [2024-10-24 15:29:19,599 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=413, PETRI_DIFFERENCE_MINUEND_FLOW=867, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=997, PETRI_PLACES=411, PETRI_TRANSITIONS=392} [2024-10-24 15:29:19,599 INFO L277 CegarLoopForPetriNet]: 370 programPoint places, 41 predicate places. [2024-10-24 15:29:19,599 INFO L471 AbstractCegarLoop]: Abstraction has has 411 places, 392 transitions, 997 flow [2024-10-24 15:29:19,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 332.94444444444446) internal successors, (5993), 18 states have internal predecessors, (5993), 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 15:29:19,601 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:29:19,601 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:29:19,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-24 15:29:19,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-24 15:29:19,802 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-24 15:29:19,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:29:19,803 INFO L85 PathProgramCache]: Analyzing trace with hash 391133484, now seen corresponding path program 2 times [2024-10-24 15:29:19,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:29:19,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961372137] [2024-10-24 15:29:19,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:29:19,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:29:19,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:29:20,029 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 15:29:20,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:29:20,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961372137] [2024-10-24 15:29:20,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961372137] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:29:20,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035173263] [2024-10-24 15:29:20,030 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 15:29:20,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:29:20,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:29:20,032 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:29:20,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-24 15:29:20,111 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 15:29:20,111 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:29:20,112 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-24 15:29:20,113 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:29:20,121 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 15:29:20,133 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 15:29:20,153 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:29:20,153 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 15:29:20,185 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:29:20,185 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 15:29:20,216 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 15:29:20,217 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:29:20,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035173263] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:29:20,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 15:29:20,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-24 15:29:20,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917787474] [2024-10-24 15:29:20,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:29:20,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:29:20,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:29:20,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:29:20,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-24 15:29:20,493 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 413 [2024-10-24 15:29:20,495 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 392 transitions, 997 flow. Second operand has 6 states, 6 states have (on average 264.6666666666667) internal successors, (1588), 6 states have internal predecessors, (1588), 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 15:29:20,495 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:29:20,495 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 413 [2024-10-24 15:29:20,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand