./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.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 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 06:51:29,228 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:51:29,301 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-09 06:51:29,306 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:51:29,306 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:51:29,347 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:51:29,347 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:51:29,348 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:51:29,349 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:51:29,349 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:51:29,350 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 06:51:29,350 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 06:51:29,350 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 06:51:29,351 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:51:29,352 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:51:29,353 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:51:29,353 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:51:29,353 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:51:29,354 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:51:29,354 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:51:29,357 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:51:29,358 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:51:29,358 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 06:51:29,358 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:51:29,358 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:51:29,359 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:51:29,359 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:51:29,359 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:51:29,359 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:51:29,360 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:51:29,360 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:51:29,360 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:51:29,360 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:51:29,360 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:51:29,361 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:51:29,361 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 06:51:29,361 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:51:29,361 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:51:29,362 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 06:51:29,362 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 06:51:29,362 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:51:29,362 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e [2024-11-09 06:51:29,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:51:29,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:51:29,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:51:29,679 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:51:29,680 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:51:29,681 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2024-11-09 06:51:31,224 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:51:31,470 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:51:31,471 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2024-11-09 06:51:31,495 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95de92456/f411a3f4297a4b33b5243a794a118aa8/FLAGd91a73609 [2024-11-09 06:51:31,803 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95de92456/f411a3f4297a4b33b5243a794a118aa8 [2024-11-09 06:51:31,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:51:31,806 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:51:31,808 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:51:31,808 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:51:31,814 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:51:31,815 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:51:31" (1/1) ... [2024-11-09 06:51:31,818 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a60d0f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:31, skipping insertion in model container [2024-11-09 06:51:31,818 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:51:31" (1/1) ... [2024-11-09 06:51:31,866 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:51:32,277 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:51:32,319 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:51:32,369 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:51:32,431 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:51:32,432 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:32 WrapperNode [2024-11-09 06:51:32,432 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:51:32,433 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:51:32,433 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:51:32,433 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:51:32,440 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:32" (1/1) ... [2024-11-09 06:51:32,467 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:32" (1/1) ... [2024-11-09 06:51:32,505 INFO L138 Inliner]: procedures = 265, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 151 [2024-11-09 06:51:32,510 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:51:32,511 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:51:32,513 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:51:32,513 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:51:32,523 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:32" (1/1) ... [2024-11-09 06:51:32,524 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:32" (1/1) ... [2024-11-09 06:51:32,532 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:32" (1/1) ... [2024-11-09 06:51:32,532 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:32" (1/1) ... [2024-11-09 06:51:32,549 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:32" (1/1) ... [2024-11-09 06:51:32,556 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:32" (1/1) ... [2024-11-09 06:51:32,560 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:32" (1/1) ... [2024-11-09 06:51:32,563 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:32" (1/1) ... [2024-11-09 06:51:32,570 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:51:32,571 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:51:32,574 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:51:32,574 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:51:32,575 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:32" (1/1) ... [2024-11-09 06:51:32,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:51:32,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:51:32,613 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 06:51:32,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 06:51:32,669 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 06:51:32,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:51:32,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:51:32,670 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 06:51:32,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:51:32,670 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-09 06:51:32,671 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-09 06:51:32,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:51:32,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:51:32,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:51:32,673 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 06:51:32,829 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:51:32,831 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:51:33,167 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 06:51:33,168 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:51:33,208 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:51:33,209 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:51:33,209 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:51:33 BoogieIcfgContainer [2024-11-09 06:51:33,209 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:51:33,211 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:51:33,213 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:51:33,217 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:51:33,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:51:31" (1/3) ... [2024-11-09 06:51:33,218 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3186e8e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:51:33, skipping insertion in model container [2024-11-09 06:51:33,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:51:32" (2/3) ... [2024-11-09 06:51:33,219 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3186e8e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:51:33, skipping insertion in model container [2024-11-09 06:51:33,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:51:33" (3/3) ... [2024-11-09 06:51:33,220 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_06-tricky_address1.i [2024-11-09 06:51:33,236 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:51:33,236 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-09 06:51:33,237 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 06:51:33,360 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 06:51:33,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 161 transitions, 326 flow [2024-11-09 06:51:33,480 INFO L124 PetriNetUnfolderBase]: 4/160 cut-off events. [2024-11-09 06:51:33,481 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:51:33,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 160 events. 4/160 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 80 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 91. Up to 2 conditions per place. [2024-11-09 06:51:33,488 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 161 transitions, 326 flow [2024-11-09 06:51:33,495 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 160 transitions, 323 flow [2024-11-09 06:51:33,513 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:51:33,524 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@689b53ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:51:33,525 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-09 06:51:33,558 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:51:33,559 INFO L124 PetriNetUnfolderBase]: 4/113 cut-off events. [2024-11-09 06:51:33,559 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:51:33,560 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:33,561 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:33,562 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:33,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:33,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1339574652, now seen corresponding path program 1 times [2024-11-09 06:51:33,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:33,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697038436] [2024-11-09 06:51:33,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:33,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:33,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:34,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:34,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:34,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697038436] [2024-11-09 06:51:34,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697038436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:34,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:34,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:51:34,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44337891] [2024-11-09 06:51:34,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:34,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:51:34,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:34,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:51:34,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:51:34,122 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 161 [2024-11-09 06:51:34,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 160 transitions, 323 flow. Second operand has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:34,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:34,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 161 [2024-11-09 06:51:34,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:34,214 INFO L124 PetriNetUnfolderBase]: 7/221 cut-off events. [2024-11-09 06:51:34,215 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 06:51:34,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 221 events. 7/221 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 321 event pairs, 6 based on Foata normal form. 5/214 useless extension candidates. Maximal degree in co-relation 144. Up to 24 conditions per place. [2024-11-09 06:51:34,220 INFO L140 encePairwiseOnDemand]: 155/161 looper letters, 10 selfloop transitions, 2 changer transitions 1/158 dead transitions. [2024-11-09 06:51:34,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 158 transitions, 343 flow [2024-11-09 06:51:34,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:51:34,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:51:34,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 458 transitions. [2024-11-09 06:51:34,239 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.94824016563147 [2024-11-09 06:51:34,241 INFO L175 Difference]: Start difference. First operand has 160 places, 160 transitions, 323 flow. Second operand 3 states and 458 transitions. [2024-11-09 06:51:34,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 158 transitions, 343 flow [2024-11-09 06:51:34,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 158 transitions, 342 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 06:51:34,254 INFO L231 Difference]: Finished difference. Result has 162 places, 157 transitions, 326 flow [2024-11-09 06:51:34,257 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=326, PETRI_PLACES=162, PETRI_TRANSITIONS=157} [2024-11-09 06:51:34,264 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 2 predicate places. [2024-11-09 06:51:34,264 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 157 transitions, 326 flow [2024-11-09 06:51:34,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:34,266 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:34,266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:34,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:51:34,267 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:34,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:34,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1525098234, now seen corresponding path program 1 times [2024-11-09 06:51:34,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:34,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977639200] [2024-11-09 06:51:34,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:34,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:34,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:34,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:34,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:34,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977639200] [2024-11-09 06:51:34,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977639200] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:51:34,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1279938432] [2024-11-09 06:51:34,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:34,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:34,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:51:34,529 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:51:34,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:51:34,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:34,671 INFO L255 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:51:34,678 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:51:34,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:34,755 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:51:34,832 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:34,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1279938432] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:51:34,834 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:51:34,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-09 06:51:34,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219390742] [2024-11-09 06:51:34,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:51:34,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 06:51:34,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:34,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 06:51:34,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:51:34,876 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 161 [2024-11-09 06:51:34,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 157 transitions, 326 flow. Second operand has 10 states, 10 states have (on average 146.0) internal successors, (1460), 10 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:34,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:34,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 161 [2024-11-09 06:51:34,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:35,106 INFO L124 PetriNetUnfolderBase]: 7/227 cut-off events. [2024-11-09 06:51:35,106 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 06:51:35,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 227 events. 7/227 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 314 event pairs, 6 based on Foata normal form. 2/218 useless extension candidates. Maximal degree in co-relation 191. Up to 24 conditions per place. [2024-11-09 06:51:35,108 INFO L140 encePairwiseOnDemand]: 155/161 looper letters, 14 selfloop transitions, 9 changer transitions 0/165 dead transitions. [2024-11-09 06:51:35,108 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 165 transitions, 390 flow [2024-11-09 06:51:35,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:51:35,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 06:51:35,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1321 transitions. [2024-11-09 06:51:35,114 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.911663216011042 [2024-11-09 06:51:35,114 INFO L175 Difference]: Start difference. First operand has 162 places, 157 transitions, 326 flow. Second operand 9 states and 1321 transitions. [2024-11-09 06:51:35,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 165 transitions, 390 flow [2024-11-09 06:51:35,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 165 transitions, 388 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 06:51:35,118 INFO L231 Difference]: Finished difference. Result has 171 places, 163 transitions, 374 flow [2024-11-09 06:51:35,119 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=374, PETRI_PLACES=171, PETRI_TRANSITIONS=163} [2024-11-09 06:51:35,120 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 11 predicate places. [2024-11-09 06:51:35,120 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 163 transitions, 374 flow [2024-11-09 06:51:35,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.0) internal successors, (1460), 10 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:35,121 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:35,122 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:35,141 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 06:51:35,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:35,326 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:35,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:35,327 INFO L85 PathProgramCache]: Analyzing trace with hash 955539398, now seen corresponding path program 2 times [2024-11-09 06:51:35,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:35,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390660930] [2024-11-09 06:51:35,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:35,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:35,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:35,613 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:35,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:35,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390660930] [2024-11-09 06:51:35,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390660930] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:51:35,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912666304] [2024-11-09 06:51:35,615 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:51:35,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:35,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:51:35,618 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:51:35,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 06:51:35,718 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 06:51:35,718 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:51:35,720 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 06:51:35,725 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:51:35,762 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 [2024-11-09 06:51:35,781 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 [2024-11-09 06:51:35,824 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:51:35,825 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 [2024-11-09 06:51:35,871 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:51:35,871 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 [2024-11-09 06:51:35,911 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 06:51:35,912 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:51:35,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [912666304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:35,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:51:35,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-09 06:51:35,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117157715] [2024-11-09 06:51:35,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:35,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:51:35,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:35,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:51:35,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:51:36,488 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 161 [2024-11-09 06:51:36,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 163 transitions, 374 flow. Second operand has 6 states, 6 states have (on average 135.66666666666666) internal successors, (814), 6 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:36,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:36,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 161 [2024-11-09 06:51:36,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:36,675 INFO L124 PetriNetUnfolderBase]: 103/540 cut-off events. [2024-11-09 06:51:36,676 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-09 06:51:36,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 806 conditions, 540 events. 103/540 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2322 event pairs, 40 based on Foata normal form. 0/503 useless extension candidates. Maximal degree in co-relation 693. Up to 184 conditions per place. [2024-11-09 06:51:36,683 INFO L140 encePairwiseOnDemand]: 150/161 looper letters, 31 selfloop transitions, 22 changer transitions 0/192 dead transitions. [2024-11-09 06:51:36,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 192 transitions, 538 flow [2024-11-09 06:51:36,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:51:36,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:51:36,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 858 transitions. [2024-11-09 06:51:36,686 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8881987577639752 [2024-11-09 06:51:36,686 INFO L175 Difference]: Start difference. First operand has 171 places, 163 transitions, 374 flow. Second operand 6 states and 858 transitions. [2024-11-09 06:51:36,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 192 transitions, 538 flow [2024-11-09 06:51:36,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 192 transitions, 532 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-09 06:51:36,691 INFO L231 Difference]: Finished difference. Result has 180 places, 184 transitions, 518 flow [2024-11-09 06:51:36,692 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=518, PETRI_PLACES=180, PETRI_TRANSITIONS=184} [2024-11-09 06:51:36,692 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 20 predicate places. [2024-11-09 06:51:36,693 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 184 transitions, 518 flow [2024-11-09 06:51:36,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.66666666666666) internal successors, (814), 6 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:36,694 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:36,694 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:36,711 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 06:51:36,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-09 06:51:36,899 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:36,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:36,900 INFO L85 PathProgramCache]: Analyzing trace with hash -134415442, now seen corresponding path program 1 times [2024-11-09 06:51:36,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:36,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114417688] [2024-11-09 06:51:36,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:36,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:36,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:37,123 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:37,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:37,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114417688] [2024-11-09 06:51:37,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114417688] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:51:37,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325857239] [2024-11-09 06:51:37,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:37,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:37,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:51:37,126 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:51:37,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 06:51:37,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:37,228 INFO L255 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 06:51:37,231 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:51:37,293 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:37,294 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:51:37,404 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:37,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1325857239] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:51:37,408 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:51:37,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-09 06:51:37,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892832594] [2024-11-09 06:51:37,409 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:51:37,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 06:51:37,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:37,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 06:51:37,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-09 06:51:37,443 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 161 [2024-11-09 06:51:37,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 184 transitions, 518 flow. Second operand has 18 states, 18 states have (on average 146.0) internal successors, (2628), 18 states have internal predecessors, (2628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:37,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:37,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 161 [2024-11-09 06:51:37,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:37,716 INFO L124 PetriNetUnfolderBase]: 38/396 cut-off events. [2024-11-09 06:51:37,717 INFO L125 PetriNetUnfolderBase]: For 57/62 co-relation queries the response was YES. [2024-11-09 06:51:37,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 670 conditions, 396 events. 38/396 cut-off events. For 57/62 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1194 event pairs, 11 based on Foata normal form. 4/384 useless extension candidates. Maximal degree in co-relation 482. Up to 51 conditions per place. [2024-11-09 06:51:37,719 INFO L140 encePairwiseOnDemand]: 155/161 looper letters, 18 selfloop transitions, 21 changer transitions 0/202 dead transitions. [2024-11-09 06:51:37,719 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 202 transitions, 684 flow [2024-11-09 06:51:37,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-09 06:51:37,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-09 06:51:37,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3067 transitions. [2024-11-09 06:51:37,726 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9071280686187518 [2024-11-09 06:51:37,726 INFO L175 Difference]: Start difference. First operand has 180 places, 184 transitions, 518 flow. Second operand 21 states and 3067 transitions. [2024-11-09 06:51:37,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 202 transitions, 684 flow [2024-11-09 06:51:37,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 202 transitions, 684 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:51:37,733 INFO L231 Difference]: Finished difference. Result has 205 places, 197 transitions, 648 flow [2024-11-09 06:51:37,734 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=648, PETRI_PLACES=205, PETRI_TRANSITIONS=197} [2024-11-09 06:51:37,735 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 45 predicate places. [2024-11-09 06:51:37,735 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 197 transitions, 648 flow [2024-11-09 06:51:37,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.0) internal successors, (2628), 18 states have internal predecessors, (2628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:37,737 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:37,737 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:37,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 06:51:37,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:37,939 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:37,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:37,939 INFO L85 PathProgramCache]: Analyzing trace with hash 888027438, now seen corresponding path program 2 times [2024-11-09 06:51:37,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:37,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101102630] [2024-11-09 06:51:37,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:37,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:37,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:38,330 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:38,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:38,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101102630] [2024-11-09 06:51:38,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101102630] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:51:38,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847837865] [2024-11-09 06:51:38,331 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:51:38,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:38,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:51:38,334 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:51:38,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 06:51:38,449 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 06:51:38,450 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:51:38,454 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 06:51:38,463 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:51:38,476 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 [2024-11-09 06:51:38,497 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 [2024-11-09 06:51:38,534 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:51:38,535 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 [2024-11-09 06:51:38,577 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:51:38,577 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 [2024-11-09 06:51:38,616 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-09 06:51:38,616 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:51:38,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847837865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:38,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:51:38,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-09 06:51:38,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106350333] [2024-11-09 06:51:38,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:38,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:51:38,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:38,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:51:38,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-09 06:51:39,082 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 161 [2024-11-09 06:51:39,083 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 197 transitions, 648 flow. Second operand has 6 states, 6 states have (on average 130.66666666666666) internal successors, (784), 6 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:39,083 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:39,083 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 161 [2024-11-09 06:51:39,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:39,400 INFO L124 PetriNetUnfolderBase]: 223/892 cut-off events. [2024-11-09 06:51:39,401 INFO L125 PetriNetUnfolderBase]: For 189/195 co-relation queries the response was YES. [2024-11-09 06:51:39,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1763 conditions, 892 events. 223/892 cut-off events. For 189/195 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4690 event pairs, 82 based on Foata normal form. 5/839 useless extension candidates. Maximal degree in co-relation 1566. Up to 407 conditions per place. [2024-11-09 06:51:39,410 INFO L140 encePairwiseOnDemand]: 146/161 looper letters, 53 selfloop transitions, 39 changer transitions 5/242 dead transitions. [2024-11-09 06:51:39,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 242 transitions, 962 flow [2024-11-09 06:51:39,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:51:39,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:51:39,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 844 transitions. [2024-11-09 06:51:39,413 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8737060041407867 [2024-11-09 06:51:39,413 INFO L175 Difference]: Start difference. First operand has 205 places, 197 transitions, 648 flow. Second operand 6 states and 844 transitions. [2024-11-09 06:51:39,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 242 transitions, 962 flow [2024-11-09 06:51:39,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 242 transitions, 938 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-09 06:51:39,423 INFO L231 Difference]: Finished difference. Result has 209 places, 233 transitions, 912 flow [2024-11-09 06:51:39,424 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=912, PETRI_PLACES=209, PETRI_TRANSITIONS=233} [2024-11-09 06:51:39,425 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 49 predicate places. [2024-11-09 06:51:39,426 INFO L471 AbstractCegarLoop]: Abstraction has has 209 places, 233 transitions, 912 flow [2024-11-09 06:51:39,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.66666666666666) internal successors, (784), 6 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:39,428 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:39,429 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:39,446 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 06:51:39,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:39,634 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:39,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:39,635 INFO L85 PathProgramCache]: Analyzing trace with hash 66656426, now seen corresponding path program 1 times [2024-11-09 06:51:39,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:39,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109103687] [2024-11-09 06:51:39,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:39,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:39,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:40,038 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:40,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:40,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109103687] [2024-11-09 06:51:40,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109103687] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:51:40,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1675729489] [2024-11-09 06:51:40,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:40,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:40,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:51:40,042 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:51:40,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 06:51:40,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:40,155 INFO L255 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 06:51:40,158 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:51:40,265 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:40,266 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:51:40,472 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:51:40,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1675729489] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:51:40,472 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:51:40,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-09 06:51:40,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243603985] [2024-11-09 06:51:40,473 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:51:40,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 06:51:40,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:40,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 06:51:40,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-09 06:51:40,519 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 161 [2024-11-09 06:51:40,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 233 transitions, 912 flow. Second operand has 23 states, 23 states have (on average 146.08695652173913) internal successors, (3360), 23 states have internal predecessors, (3360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:40,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:40,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 161 [2024-11-09 06:51:40,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:40,947 INFO L124 PetriNetUnfolderBase]: 126/667 cut-off events. [2024-11-09 06:51:40,947 INFO L125 PetriNetUnfolderBase]: For 324/327 co-relation queries the response was YES. [2024-11-09 06:51:40,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1415 conditions, 667 events. 126/667 cut-off events. For 324/327 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2929 event pairs, 15 based on Foata normal form. 3/642 useless extension candidates. Maximal degree in co-relation 1139. Up to 118 conditions per place. [2024-11-09 06:51:40,954 INFO L140 encePairwiseOnDemand]: 155/161 looper letters, 21 selfloop transitions, 30 changer transitions 0/250 dead transitions. [2024-11-09 06:51:40,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 250 transitions, 1136 flow [2024-11-09 06:51:40,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-09 06:51:40,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-09 06:51:40,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4374 transitions. [2024-11-09 06:51:40,963 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9055900621118013 [2024-11-09 06:51:40,963 INFO L175 Difference]: Start difference. First operand has 209 places, 233 transitions, 912 flow. Second operand 30 states and 4374 transitions. [2024-11-09 06:51:40,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 250 transitions, 1136 flow [2024-11-09 06:51:40,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 250 transitions, 1104 flow, removed 16 selfloop flow, removed 0 redundant places. [2024-11-09 06:51:40,971 INFO L231 Difference]: Finished difference. Result has 241 places, 243 transitions, 1032 flow [2024-11-09 06:51:40,972 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=880, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1032, PETRI_PLACES=241, PETRI_TRANSITIONS=243} [2024-11-09 06:51:40,974 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 81 predicate places. [2024-11-09 06:51:40,974 INFO L471 AbstractCegarLoop]: Abstraction has has 241 places, 243 transitions, 1032 flow [2024-11-09 06:51:40,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 146.08695652173913) internal successors, (3360), 23 states have internal predecessors, (3360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:40,977 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:40,977 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:40,996 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 06:51:41,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:41,179 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:41,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:41,179 INFO L85 PathProgramCache]: Analyzing trace with hash 335385256, now seen corresponding path program 2 times [2024-11-09 06:51:41,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:41,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624826979] [2024-11-09 06:51:41,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:41,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:41,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:41,772 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:51:41,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:41,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624826979] [2024-11-09 06:51:41,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624826979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:41,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:41,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:51:41,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506868291] [2024-11-09 06:51:41,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:41,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:51:41,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:41,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:51:41,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:51:41,871 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 161 [2024-11-09 06:51:41,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 243 transitions, 1032 flow. Second operand has 6 states, 6 states have (on average 138.33333333333334) internal successors, (830), 6 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:41,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:41,872 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 161 [2024-11-09 06:51:41,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:42,118 INFO L124 PetriNetUnfolderBase]: 212/925 cut-off events. [2024-11-09 06:51:42,118 INFO L125 PetriNetUnfolderBase]: For 582/626 co-relation queries the response was YES. [2024-11-09 06:51:42,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2185 conditions, 925 events. 212/925 cut-off events. For 582/626 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 4926 event pairs, 40 based on Foata normal form. 1/908 useless extension candidates. Maximal degree in co-relation 1908. Up to 338 conditions per place. [2024-11-09 06:51:42,125 INFO L140 encePairwiseOnDemand]: 150/161 looper letters, 72 selfloop transitions, 40 changer transitions 0/282 dead transitions. [2024-11-09 06:51:42,125 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 282 transitions, 1440 flow [2024-11-09 06:51:42,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:51:42,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:51:42,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 873 transitions. [2024-11-09 06:51:42,128 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9037267080745341 [2024-11-09 06:51:42,128 INFO L175 Difference]: Start difference. First operand has 241 places, 243 transitions, 1032 flow. Second operand 6 states and 873 transitions. [2024-11-09 06:51:42,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 282 transitions, 1440 flow [2024-11-09 06:51:42,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 282 transitions, 1394 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-09 06:51:42,138 INFO L231 Difference]: Finished difference. Result has 233 places, 274 transitions, 1354 flow [2024-11-09 06:51:42,138 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=986, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1354, PETRI_PLACES=233, PETRI_TRANSITIONS=274} [2024-11-09 06:51:42,140 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 73 predicate places. [2024-11-09 06:51:42,140 INFO L471 AbstractCegarLoop]: Abstraction has has 233 places, 274 transitions, 1354 flow [2024-11-09 06:51:42,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 138.33333333333334) internal successors, (830), 6 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:42,140 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:42,141 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:42,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 06:51:42,142 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:42,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:42,142 INFO L85 PathProgramCache]: Analyzing trace with hash 15519405, now seen corresponding path program 1 times [2024-11-09 06:51:42,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:42,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225528682] [2024-11-09 06:51:42,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:42,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:42,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:42,760 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:51:42,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:42,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225528682] [2024-11-09 06:51:42,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225528682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:42,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:42,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:51:42,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029854771] [2024-11-09 06:51:42,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:42,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:51:42,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:42,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:51:42,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:51:42,844 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 161 [2024-11-09 06:51:42,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 274 transitions, 1354 flow. Second operand has 6 states, 6 states have (on average 133.33333333333334) internal successors, (800), 6 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:42,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:51:42,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 161 [2024-11-09 06:51:42,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:51:43,208 INFO L124 PetriNetUnfolderBase]: 361/1326 cut-off events. [2024-11-09 06:51:43,208 INFO L125 PetriNetUnfolderBase]: For 1495/1523 co-relation queries the response was YES. [2024-11-09 06:51:43,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3665 conditions, 1326 events. 361/1326 cut-off events. For 1495/1523 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 7974 event pairs, 87 based on Foata normal form. 2/1292 useless extension candidates. Maximal degree in co-relation 3405. Up to 610 conditions per place. [2024-11-09 06:51:43,220 INFO L140 encePairwiseOnDemand]: 146/161 looper letters, 100 selfloop transitions, 64 changer transitions 10/335 dead transitions. [2024-11-09 06:51:43,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 335 transitions, 2042 flow [2024-11-09 06:51:43,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:51:43,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:51:43,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 859 transitions. [2024-11-09 06:51:43,224 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8892339544513458 [2024-11-09 06:51:43,224 INFO L175 Difference]: Start difference. First operand has 233 places, 274 transitions, 1354 flow. Second operand 6 states and 859 transitions. [2024-11-09 06:51:43,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 335 transitions, 2042 flow [2024-11-09 06:51:43,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 335 transitions, 2024 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-09 06:51:43,241 INFO L231 Difference]: Finished difference. Result has 243 places, 321 transitions, 1922 flow [2024-11-09 06:51:43,242 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=1336, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1922, PETRI_PLACES=243, PETRI_TRANSITIONS=321} [2024-11-09 06:51:43,243 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 83 predicate places. [2024-11-09 06:51:43,243 INFO L471 AbstractCegarLoop]: Abstraction has has 243 places, 321 transitions, 1922 flow [2024-11-09 06:51:43,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.33333333333334) internal successors, (800), 6 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:51:43,244 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:51:43,244 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:43,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 06:51:43,245 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:51:43,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:43,245 INFO L85 PathProgramCache]: Analyzing trace with hash -661540977, now seen corresponding path program 1 times [2024-11-09 06:51:43,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:51:43,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235221594] [2024-11-09 06:51:43,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:43,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:51:43,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:58,870 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:51:58,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:51:58,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235221594] [2024-11-09 06:51:58,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235221594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:51:58,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:51:58,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-09 06:51:58,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176234104] [2024-11-09 06:51:58,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:51:58,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 06:51:58,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:51:58,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 06:51:58,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2024-11-09 06:52:01,235 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 161 [2024-11-09 06:52:01,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 321 transitions, 1922 flow. Second operand has 15 states, 15 states have (on average 121.73333333333333) internal successors, (1826), 15 states have internal predecessors, (1826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:01,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:52:01,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 161 [2024-11-09 06:52:01,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:52:02,492 INFO L124 PetriNetUnfolderBase]: 461/1566 cut-off events. [2024-11-09 06:52:02,493 INFO L125 PetriNetUnfolderBase]: For 2923/3001 co-relation queries the response was YES. [2024-11-09 06:52:02,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5173 conditions, 1566 events. 461/1566 cut-off events. For 2923/3001 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 9804 event pairs, 19 based on Foata normal form. 37/1587 useless extension candidates. Maximal degree in co-relation 4896. Up to 562 conditions per place. [2024-11-09 06:52:02,510 INFO L140 encePairwiseOnDemand]: 134/161 looper letters, 190 selfloop transitions, 84 changer transitions 47/471 dead transitions. [2024-11-09 06:52:02,510 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 471 transitions, 3654 flow [2024-11-09 06:52:02,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 06:52:02,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-09 06:52:02,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2298 transitions. [2024-11-09 06:52:02,516 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7929606625258799 [2024-11-09 06:52:02,516 INFO L175 Difference]: Start difference. First operand has 243 places, 321 transitions, 1922 flow. Second operand 18 states and 2298 transitions. [2024-11-09 06:52:02,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 471 transitions, 3654 flow [2024-11-09 06:52:02,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 471 transitions, 3568 flow, removed 43 selfloop flow, removed 0 redundant places. [2024-11-09 06:52:02,550 INFO L231 Difference]: Finished difference. Result has 268 places, 358 transitions, 2482 flow [2024-11-09 06:52:02,550 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=1848, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2482, PETRI_PLACES=268, PETRI_TRANSITIONS=358} [2024-11-09 06:52:02,551 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 108 predicate places. [2024-11-09 06:52:02,551 INFO L471 AbstractCegarLoop]: Abstraction has has 268 places, 358 transitions, 2482 flow [2024-11-09 06:52:02,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 121.73333333333333) internal successors, (1826), 15 states have internal predecessors, (1826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:02,554 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:52:02,554 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:02,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 06:52:02,555 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:52:02,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:02,555 INFO L85 PathProgramCache]: Analyzing trace with hash -13002589, now seen corresponding path program 2 times [2024-11-09 06:52:02,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:52:02,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978298010] [2024-11-09 06:52:02,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:02,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:02,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:13,697 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:52:13,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:52:13,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978298010] [2024-11-09 06:52:13,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978298010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:13,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:13,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-09 06:52:13,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057036586] [2024-11-09 06:52:13,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:13,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-09 06:52:13,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:52:13,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-09 06:52:13,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2024-11-09 06:52:21,154 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 161 [2024-11-09 06:52:21,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 358 transitions, 2482 flow. Second operand has 20 states, 20 states have (on average 111.8) internal successors, (2236), 20 states have internal predecessors, (2236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:21,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:52:21,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 161 [2024-11-09 06:52:21,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:52:24,578 INFO L124 PetriNetUnfolderBase]: 522/1741 cut-off events. [2024-11-09 06:52:24,579 INFO L125 PetriNetUnfolderBase]: For 4751/4803 co-relation queries the response was YES. [2024-11-09 06:52:24,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6537 conditions, 1741 events. 522/1741 cut-off events. For 4751/4803 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 10632 event pairs, 30 based on Foata normal form. 24/1746 useless extension candidates. Maximal degree in co-relation 6250. Up to 718 conditions per place. [2024-11-09 06:52:24,598 INFO L140 encePairwiseOnDemand]: 131/161 looper letters, 216 selfloop transitions, 93 changer transitions 29/479 dead transitions. [2024-11-09 06:52:24,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 479 transitions, 3844 flow [2024-11-09 06:52:24,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 06:52:24,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-09 06:52:24,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2386 transitions. [2024-11-09 06:52:24,605 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7409937888198758 [2024-11-09 06:52:24,606 INFO L175 Difference]: Start difference. First operand has 268 places, 358 transitions, 2482 flow. Second operand 20 states and 2386 transitions. [2024-11-09 06:52:24,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 479 transitions, 3844 flow [2024-11-09 06:52:24,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 479 transitions, 3803 flow, removed 12 selfloop flow, removed 6 redundant places. [2024-11-09 06:52:24,657 INFO L231 Difference]: Finished difference. Result has 287 places, 365 transitions, 2726 flow [2024-11-09 06:52:24,658 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=2447, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2726, PETRI_PLACES=287, PETRI_TRANSITIONS=365} [2024-11-09 06:52:24,659 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 127 predicate places. [2024-11-09 06:52:24,659 INFO L471 AbstractCegarLoop]: Abstraction has has 287 places, 365 transitions, 2726 flow [2024-11-09 06:52:24,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 111.8) internal successors, (2236), 20 states have internal predecessors, (2236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:24,660 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:52:24,660 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:24,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 06:52:24,661 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:52:24,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:24,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1138588473, now seen corresponding path program 3 times [2024-11-09 06:52:24,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:52:24,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137871839] [2024-11-09 06:52:24,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:24,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:24,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:36,553 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-09 06:52:36,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:52:36,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137871839] [2024-11-09 06:52:36,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137871839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:36,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:52:36,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-09 06:52:36,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677022603] [2024-11-09 06:52:36,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:36,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 06:52:36,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:52:36,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 06:52:36,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2024-11-09 06:52:38,990 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 161 [2024-11-09 06:52:38,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 365 transitions, 2726 flow. Second operand has 15 states, 15 states have (on average 121.73333333333333) internal successors, (1826), 15 states have internal predecessors, (1826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:38,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:52:38,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 161 [2024-11-09 06:52:38,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:52:40,665 INFO L124 PetriNetUnfolderBase]: 753/2538 cut-off events. [2024-11-09 06:52:40,665 INFO L125 PetriNetUnfolderBase]: For 9489/9646 co-relation queries the response was YES. [2024-11-09 06:52:40,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10479 conditions, 2538 events. 753/2538 cut-off events. For 9489/9646 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 19214 event pairs, 57 based on Foata normal form. 67/2576 useless extension candidates. Maximal degree in co-relation 10183. Up to 615 conditions per place. [2024-11-09 06:52:40,699 INFO L140 encePairwiseOnDemand]: 136/161 looper letters, 330 selfloop transitions, 108 changer transitions 18/609 dead transitions. [2024-11-09 06:52:40,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 609 transitions, 6139 flow [2024-11-09 06:52:40,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 06:52:40,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-09 06:52:40,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2068 transitions. [2024-11-09 06:52:40,704 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8027950310559007 [2024-11-09 06:52:40,704 INFO L175 Difference]: Start difference. First operand has 287 places, 365 transitions, 2726 flow. Second operand 16 states and 2068 transitions. [2024-11-09 06:52:40,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 609 transitions, 6139 flow [2024-11-09 06:52:40,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 609 transitions, 5985 flow, removed 3 selfloop flow, removed 10 redundant places. [2024-11-09 06:52:40,884 INFO L231 Difference]: Finished difference. Result has 298 places, 445 transitions, 4147 flow [2024-11-09 06:52:40,884 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=2645, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=4147, PETRI_PLACES=298, PETRI_TRANSITIONS=445} [2024-11-09 06:52:40,885 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 138 predicate places. [2024-11-09 06:52:40,885 INFO L471 AbstractCegarLoop]: Abstraction has has 298 places, 445 transitions, 4147 flow [2024-11-09 06:52:40,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 121.73333333333333) internal successors, (1826), 15 states have internal predecessors, (1826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:52:40,888 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:52:40,888 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:40,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 06:52:40,888 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 06:52:40,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:40,889 INFO L85 PathProgramCache]: Analyzing trace with hash -985919151, now seen corresponding path program 4 times [2024-11-09 06:52:40,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:52:40,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095767196] [2024-11-09 06:52:40,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:40,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:52:40,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat