./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 3061b6dc 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-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 05:49:17,115 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 05:49:17,191 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-19 05:49:17,198 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 05:49:17,199 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 05:49:17,226 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 05:49:17,227 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 05:49:17,227 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 05:49:17,228 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 05:49:17,229 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 05:49:17,230 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 05:49:17,230 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 05:49:17,231 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 05:49:17,232 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 05:49:17,232 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 05:49:17,232 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 05:49:17,232 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 05:49:17,233 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 05:49:17,233 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 05:49:17,233 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 05:49:17,233 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 05:49:17,237 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 05:49:17,238 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-19 05:49:17,238 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 05:49:17,238 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 05:49:17,238 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 05:49:17,239 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 05:49:17,239 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 05:49:17,239 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 05:49:17,239 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 05:49:17,240 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 05:49:17,240 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:49:17,240 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 05:49:17,240 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 05:49:17,240 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 05:49:17,241 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 05:49:17,241 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 05:49:17,244 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 05:49:17,244 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 05:49:17,244 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 05:49:17,245 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 05:49:17,245 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e [2024-11-19 05:49:17,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 05:49:17,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 05:49:17,545 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 05:49:17,546 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 05:49:17,547 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 05:49:17,548 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2024-11-19 05:49:18,938 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 05:49:19,209 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 05:49:19,210 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2024-11-19 05:49:19,228 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb13d0c7c/a266f3ae82244c63a2426b8bd2d0b142/FLAG48a9ef31a [2024-11-19 05:49:19,244 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb13d0c7c/a266f3ae82244c63a2426b8bd2d0b142 [2024-11-19 05:49:19,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 05:49:19,248 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 05:49:19,255 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 05:49:19,255 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 05:49:19,269 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 05:49:19,270 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:49:19" (1/1) ... [2024-11-19 05:49:19,271 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35cd6cad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:19, skipping insertion in model container [2024-11-19 05:49:19,271 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:49:19" (1/1) ... [2024-11-19 05:49:19,320 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 05:49:19,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:49:19,854 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 05:49:19,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:49:20,065 INFO L204 MainTranslator]: Completed translation [2024-11-19 05:49:20,069 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:20 WrapperNode [2024-11-19 05:49:20,070 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 05:49:20,071 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 05:49:20,071 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 05:49:20,072 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 05:49:20,121 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:20" (1/1) ... [2024-11-19 05:49:20,161 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:20" (1/1) ... [2024-11-19 05:49:20,197 INFO L138 Inliner]: procedures = 265, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 151 [2024-11-19 05:49:20,198 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 05:49:20,199 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 05:49:20,199 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 05:49:20,199 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 05:49:20,209 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:20" (1/1) ... [2024-11-19 05:49:20,210 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:20" (1/1) ... [2024-11-19 05:49:20,220 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:20" (1/1) ... [2024-11-19 05:49:20,221 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:20" (1/1) ... [2024-11-19 05:49:20,230 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:20" (1/1) ... [2024-11-19 05:49:20,233 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:20" (1/1) ... [2024-11-19 05:49:20,235 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:20" (1/1) ... [2024-11-19 05:49:20,237 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:20" (1/1) ... [2024-11-19 05:49:20,239 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 05:49:20,241 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 05:49:20,241 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 05:49:20,241 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 05:49:20,245 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:20" (1/1) ... [2024-11-19 05:49:20,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:49:20,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:49:20,291 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) [2024-11-19 05:49:20,303 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 [2024-11-19 05:49:20,354 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 05:49:20,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-19 05:49:20,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-19 05:49:20,355 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 05:49:20,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 05:49:20,355 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-19 05:49:20,356 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-19 05:49:20,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 05:49:20,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 05:49:20,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 05:49:20,358 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 05:49:20,528 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 05:49:20,530 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 05:49:20,812 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 05:49:20,812 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 05:49:20,855 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 05:49:20,856 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 05:49:20,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:49:20 BoogieIcfgContainer [2024-11-19 05:49:20,856 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 05:49:20,858 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 05:49:20,858 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 05:49:20,862 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 05:49:20,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:49:19" (1/3) ... [2024-11-19 05:49:20,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a7c941c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:49:20, skipping insertion in model container [2024-11-19 05:49:20,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:49:20" (2/3) ... [2024-11-19 05:49:20,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a7c941c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:49:20, skipping insertion in model container [2024-11-19 05:49:20,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:49:20" (3/3) ... [2024-11-19 05:49:20,865 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_06-tricky_address1.i [2024-11-19 05:49:20,882 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 05:49:20,883 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-19 05:49:20,883 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 05:49:20,957 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 05:49:20,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 161 transitions, 326 flow [2024-11-19 05:49:21,078 INFO L124 PetriNetUnfolderBase]: 4/160 cut-off events. [2024-11-19 05:49:21,082 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:49:21,091 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. [2024-11-19 05:49:21,092 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 161 transitions, 326 flow [2024-11-19 05:49:21,099 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 160 transitions, 323 flow [2024-11-19 05:49:21,115 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:49:21,122 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;@fdf1a38, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:49:21,122 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-19 05:49:21,155 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:49:21,155 INFO L124 PetriNetUnfolderBase]: 4/113 cut-off events. [2024-11-19 05:49:21,156 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:49:21,156 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:21,157 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] [2024-11-19 05:49:21,157 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)] === [2024-11-19 05:49:21,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:21,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1339574652, now seen corresponding path program 1 times [2024-11-19 05:49:21,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:21,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126785475] [2024-11-19 05:49:21,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:21,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:21,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:21,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:21,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126785475] [2024-11-19 05:49:21,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126785475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:21,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:21,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:49:21,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682831293] [2024-11-19 05:49:21,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:21,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:49:21,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:21,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:49:21,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:49:21,743 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 161 [2024-11-19 05:49:21,747 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) [2024-11-19 05:49:21,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:21,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 161 [2024-11-19 05:49:21,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:21,829 INFO L124 PetriNetUnfolderBase]: 7/221 cut-off events. [2024-11-19 05:49:21,829 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 05:49:21,830 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. [2024-11-19 05:49:21,832 INFO L140 encePairwiseOnDemand]: 155/161 looper letters, 10 selfloop transitions, 2 changer transitions 1/158 dead transitions. [2024-11-19 05:49:21,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 158 transitions, 343 flow [2024-11-19 05:49:21,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:49:21,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:49:21,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 458 transitions. [2024-11-19 05:49:21,851 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.94824016563147 [2024-11-19 05:49:21,855 INFO L175 Difference]: Start difference. First operand has 160 places, 160 transitions, 323 flow. Second operand 3 states and 458 transitions. [2024-11-19 05:49:21,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 158 transitions, 343 flow [2024-11-19 05:49:21,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 158 transitions, 342 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:49:21,865 INFO L231 Difference]: Finished difference. Result has 162 places, 157 transitions, 326 flow [2024-11-19 05:49:21,868 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} [2024-11-19 05:49:21,874 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 2 predicate places. [2024-11-19 05:49:21,875 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 157 transitions, 326 flow [2024-11-19 05:49:21,876 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) [2024-11-19 05:49:21,876 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:21,876 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] [2024-11-19 05:49:21,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 05:49:21,877 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)] === [2024-11-19 05:49:21,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:21,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1525098234, now seen corresponding path program 1 times [2024-11-19 05:49:21,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:21,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797624468] [2024-11-19 05:49:21,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:21,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:21,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:22,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:22,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:22,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797624468] [2024-11-19 05:49:22,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797624468] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:49:22,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319099456] [2024-11-19 05:49:22,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:22,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:22,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:49:22,144 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) [2024-11-19 05:49:22,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 05:49:22,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:22,272 INFO L255 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 05:49:22,279 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:49:22,363 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:22,364 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:49:22,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:22,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319099456] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 05:49:22,439 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 05:49:22,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-19 05:49:22,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910027272] [2024-11-19 05:49:22,440 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 05:49:22,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 05:49:22,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:22,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 05:49:22,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 05:49:22,477 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 161 [2024-11-19 05:49:22,479 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) [2024-11-19 05:49:22,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:22,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 161 [2024-11-19 05:49:22,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:22,667 INFO L124 PetriNetUnfolderBase]: 7/227 cut-off events. [2024-11-19 05:49:22,667 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 05:49:22,668 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. [2024-11-19 05:49:22,670 INFO L140 encePairwiseOnDemand]: 155/161 looper letters, 14 selfloop transitions, 9 changer transitions 0/165 dead transitions. [2024-11-19 05:49:22,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 165 transitions, 390 flow [2024-11-19 05:49:22,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:49:22,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 05:49:22,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1321 transitions. [2024-11-19 05:49:22,677 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.911663216011042 [2024-11-19 05:49:22,677 INFO L175 Difference]: Start difference. First operand has 162 places, 157 transitions, 326 flow. Second operand 9 states and 1321 transitions. [2024-11-19 05:49:22,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 165 transitions, 390 flow [2024-11-19 05:49:22,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 165 transitions, 388 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:49:22,683 INFO L231 Difference]: Finished difference. Result has 171 places, 163 transitions, 374 flow [2024-11-19 05:49:22,684 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} [2024-11-19 05:49:22,684 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 11 predicate places. [2024-11-19 05:49:22,685 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 163 transitions, 374 flow [2024-11-19 05:49:22,686 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) [2024-11-19 05:49:22,686 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:22,687 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] [2024-11-19 05:49:22,706 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 05:49:22,887 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 [2024-11-19 05:49:22,888 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)] === [2024-11-19 05:49:22,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:22,889 INFO L85 PathProgramCache]: Analyzing trace with hash 955539398, now seen corresponding path program 2 times [2024-11-19 05:49:22,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:22,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477099532] [2024-11-19 05:49:22,889 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:49:22,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:22,937 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:49:22,939 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:23,625 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 05:49:23,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:23,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477099532] [2024-11-19 05:49:23,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477099532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:23,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:23,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:49:23,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39032508] [2024-11-19 05:49:23,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:23,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:49:23,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:23,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:49:23,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:49:24,179 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 161 [2024-11-19 05:49:24,180 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) [2024-11-19 05:49:24,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:24,181 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 161 [2024-11-19 05:49:24,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:24,370 INFO L124 PetriNetUnfolderBase]: 103/540 cut-off events. [2024-11-19 05:49:24,371 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-19 05:49:24,373 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 2321 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. [2024-11-19 05:49:24,376 INFO L140 encePairwiseOnDemand]: 150/161 looper letters, 31 selfloop transitions, 22 changer transitions 0/192 dead transitions. [2024-11-19 05:49:24,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 192 transitions, 538 flow [2024-11-19 05:49:24,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:49:24,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:49:24,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 858 transitions. [2024-11-19 05:49:24,381 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8881987577639752 [2024-11-19 05:49:24,381 INFO L175 Difference]: Start difference. First operand has 171 places, 163 transitions, 374 flow. Second operand 6 states and 858 transitions. [2024-11-19 05:49:24,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 192 transitions, 538 flow [2024-11-19 05:49:24,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 192 transitions, 532 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-19 05:49:24,389 INFO L231 Difference]: Finished difference. Result has 180 places, 184 transitions, 518 flow [2024-11-19 05:49:24,390 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} [2024-11-19 05:49:24,391 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 20 predicate places. [2024-11-19 05:49:24,391 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 184 transitions, 518 flow [2024-11-19 05:49:24,392 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) [2024-11-19 05:49:24,392 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:24,392 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] [2024-11-19 05:49:24,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 05:49:24,393 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)] === [2024-11-19 05:49:24,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:24,394 INFO L85 PathProgramCache]: Analyzing trace with hash -134415442, now seen corresponding path program 1 times [2024-11-19 05:49:24,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:24,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942049358] [2024-11-19 05:49:24,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:24,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:24,652 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:24,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:24,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942049358] [2024-11-19 05:49:24,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942049358] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:49:24,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [285171103] [2024-11-19 05:49:24,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:24,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:24,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:49:24,655 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) [2024-11-19 05:49:24,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 05:49:24,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:24,767 INFO L255 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 05:49:24,770 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:49:24,826 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:24,827 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:49:24,952 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:24,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [285171103] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 05:49:24,952 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 05:49:24,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-19 05:49:24,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56426976] [2024-11-19 05:49:24,953 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 05:49:24,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-19 05:49:24,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:24,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-19 05:49:24,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-19 05:49:24,989 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 161 [2024-11-19 05:49:24,992 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) [2024-11-19 05:49:24,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:24,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 161 [2024-11-19 05:49:24,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:25,237 INFO L124 PetriNetUnfolderBase]: 38/396 cut-off events. [2024-11-19 05:49:25,237 INFO L125 PetriNetUnfolderBase]: For 57/62 co-relation queries the response was YES. [2024-11-19 05:49:25,239 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 1198 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. [2024-11-19 05:49:25,242 INFO L140 encePairwiseOnDemand]: 155/161 looper letters, 18 selfloop transitions, 21 changer transitions 0/202 dead transitions. [2024-11-19 05:49:25,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 202 transitions, 684 flow [2024-11-19 05:49:25,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-19 05:49:25,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-19 05:49:25,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3067 transitions. [2024-11-19 05:49:25,251 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9071280686187518 [2024-11-19 05:49:25,251 INFO L175 Difference]: Start difference. First operand has 180 places, 184 transitions, 518 flow. Second operand 21 states and 3067 transitions. [2024-11-19 05:49:25,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 202 transitions, 684 flow [2024-11-19 05:49:25,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 202 transitions, 684 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:49:25,261 INFO L231 Difference]: Finished difference. Result has 205 places, 197 transitions, 648 flow [2024-11-19 05:49:25,262 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} [2024-11-19 05:49:25,264 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 45 predicate places. [2024-11-19 05:49:25,264 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 197 transitions, 648 flow [2024-11-19 05:49:25,266 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) [2024-11-19 05:49:25,266 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:25,266 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] [2024-11-19 05:49:25,284 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 05:49:25,467 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,SelfDestructingSolverStorable3 [2024-11-19 05:49:25,467 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)] === [2024-11-19 05:49:25,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:25,468 INFO L85 PathProgramCache]: Analyzing trace with hash 888027438, now seen corresponding path program 2 times [2024-11-19 05:49:25,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:25,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235777590] [2024-11-19 05:49:25,468 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:49:25,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:25,499 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:49:25,501 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:25,898 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-19 05:49:25,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:25,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235777590] [2024-11-19 05:49:25,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235777590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:25,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:25,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:49:25,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786326459] [2024-11-19 05:49:25,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:25,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:49:25,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:25,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:49:25,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:49:26,289 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 161 [2024-11-19 05:49:26,290 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) [2024-11-19 05:49:26,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:26,290 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 161 [2024-11-19 05:49:26,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:26,650 INFO L124 PetriNetUnfolderBase]: 223/892 cut-off events. [2024-11-19 05:49:26,651 INFO L125 PetriNetUnfolderBase]: For 189/195 co-relation queries the response was YES. [2024-11-19 05:49:26,654 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 4663 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. [2024-11-19 05:49:26,658 INFO L140 encePairwiseOnDemand]: 146/161 looper letters, 53 selfloop transitions, 39 changer transitions 5/242 dead transitions. [2024-11-19 05:49:26,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 242 transitions, 962 flow [2024-11-19 05:49:26,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:49:26,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:49:26,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 844 transitions. [2024-11-19 05:49:26,661 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8737060041407867 [2024-11-19 05:49:26,662 INFO L175 Difference]: Start difference. First operand has 205 places, 197 transitions, 648 flow. Second operand 6 states and 844 transitions. [2024-11-19 05:49:26,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 242 transitions, 962 flow [2024-11-19 05:49:26,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 242 transitions, 938 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-19 05:49:26,670 INFO L231 Difference]: Finished difference. Result has 209 places, 233 transitions, 912 flow [2024-11-19 05:49:26,671 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} [2024-11-19 05:49:26,671 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 49 predicate places. [2024-11-19 05:49:26,671 INFO L471 AbstractCegarLoop]: Abstraction has has 209 places, 233 transitions, 912 flow [2024-11-19 05:49:26,672 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) [2024-11-19 05:49:26,672 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:26,673 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] [2024-11-19 05:49:26,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 05:49:26,673 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)] === [2024-11-19 05:49:26,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:26,674 INFO L85 PathProgramCache]: Analyzing trace with hash 66656426, now seen corresponding path program 1 times [2024-11-19 05:49:26,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:26,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083373831] [2024-11-19 05:49:26,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:26,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:26,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:27,002 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:27,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:27,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083373831] [2024-11-19 05:49:27,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083373831] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:49:27,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807332315] [2024-11-19 05:49:27,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:27,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:27,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:49:27,006 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) [2024-11-19 05:49:27,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 05:49:27,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:27,128 INFO L255 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 05:49:27,131 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:49:27,234 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:27,235 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:49:27,470 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:49:27,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807332315] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 05:49:27,471 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 05:49:27,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-19 05:49:27,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231277414] [2024-11-19 05:49:27,471 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 05:49:27,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 05:49:27,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:27,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 05:49:27,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-19 05:49:27,506 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 161 [2024-11-19 05:49:27,511 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) [2024-11-19 05:49:27,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:27,511 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 161 [2024-11-19 05:49:27,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:27,918 INFO L124 PetriNetUnfolderBase]: 117/655 cut-off events. [2024-11-19 05:49:27,919 INFO L125 PetriNetUnfolderBase]: For 327/332 co-relation queries the response was YES. [2024-11-19 05:49:27,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1391 conditions, 655 events. 117/655 cut-off events. For 327/332 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2892 event pairs, 15 based on Foata normal form. 3/630 useless extension candidates. Maximal degree in co-relation 1115. Up to 118 conditions per place. [2024-11-19 05:49:27,924 INFO L140 encePairwiseOnDemand]: 155/161 looper letters, 21 selfloop transitions, 30 changer transitions 0/250 dead transitions. [2024-11-19 05:49:27,924 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 250 transitions, 1136 flow [2024-11-19 05:49:27,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-19 05:49:27,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-19 05:49:27,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4374 transitions. [2024-11-19 05:49:27,934 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9055900621118013 [2024-11-19 05:49:27,934 INFO L175 Difference]: Start difference. First operand has 209 places, 233 transitions, 912 flow. Second operand 30 states and 4374 transitions. [2024-11-19 05:49:27,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 250 transitions, 1136 flow [2024-11-19 05:49:27,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 250 transitions, 1104 flow, removed 16 selfloop flow, removed 0 redundant places. [2024-11-19 05:49:27,944 INFO L231 Difference]: Finished difference. Result has 241 places, 243 transitions, 1032 flow [2024-11-19 05:49:27,944 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} [2024-11-19 05:49:27,946 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 81 predicate places. [2024-11-19 05:49:27,947 INFO L471 AbstractCegarLoop]: Abstraction has has 241 places, 243 transitions, 1032 flow [2024-11-19 05:49:27,949 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) [2024-11-19 05:49:27,950 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:27,951 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] [2024-11-19 05:49:27,968 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 05:49:28,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:49:28,152 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)] === [2024-11-19 05:49:28,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:28,153 INFO L85 PathProgramCache]: Analyzing trace with hash 335385256, now seen corresponding path program 2 times [2024-11-19 05:49:28,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:28,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744721791] [2024-11-19 05:49:28,153 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:49:28,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:28,175 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:49:28,175 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:28,539 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:49:28,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:28,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744721791] [2024-11-19 05:49:28,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744721791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:28,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:28,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:49:28,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925775797] [2024-11-19 05:49:28,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:28,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:49:28,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:28,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:49:28,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:49:28,649 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 161 [2024-11-19 05:49:28,650 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) [2024-11-19 05:49:28,650 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:28,650 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 161 [2024-11-19 05:49:28,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:28,923 INFO L124 PetriNetUnfolderBase]: 212/925 cut-off events. [2024-11-19 05:49:28,923 INFO L125 PetriNetUnfolderBase]: For 576/620 co-relation queries the response was YES. [2024-11-19 05:49:28,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2185 conditions, 925 events. 212/925 cut-off events. For 576/620 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 4928 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. [2024-11-19 05:49:28,930 INFO L140 encePairwiseOnDemand]: 150/161 looper letters, 72 selfloop transitions, 40 changer transitions 0/282 dead transitions. [2024-11-19 05:49:28,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 282 transitions, 1440 flow [2024-11-19 05:49:28,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:49:28,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:49:28,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 873 transitions. [2024-11-19 05:49:28,933 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9037267080745341 [2024-11-19 05:49:28,933 INFO L175 Difference]: Start difference. First operand has 241 places, 243 transitions, 1032 flow. Second operand 6 states and 873 transitions. [2024-11-19 05:49:28,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 282 transitions, 1440 flow [2024-11-19 05:49:28,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 282 transitions, 1394 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-19 05:49:28,942 INFO L231 Difference]: Finished difference. Result has 233 places, 274 transitions, 1354 flow [2024-11-19 05:49:28,943 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} [2024-11-19 05:49:28,943 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 73 predicate places. [2024-11-19 05:49:28,944 INFO L471 AbstractCegarLoop]: Abstraction has has 233 places, 274 transitions, 1354 flow [2024-11-19 05:49:28,944 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) [2024-11-19 05:49:28,944 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:28,945 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] [2024-11-19 05:49:28,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 05:49:28,945 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)] === [2024-11-19 05:49:28,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:28,946 INFO L85 PathProgramCache]: Analyzing trace with hash 15519405, now seen corresponding path program 1 times [2024-11-19 05:49:28,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:28,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153788960] [2024-11-19 05:49:28,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:28,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:28,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:29,475 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:49:29,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:29,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153788960] [2024-11-19 05:49:29,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153788960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:29,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:29,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:49:29,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310324260] [2024-11-19 05:49:29,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:29,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:49:29,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:29,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:49:29,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:49:29,586 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 161 [2024-11-19 05:49:29,587 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) [2024-11-19 05:49:29,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:29,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 161 [2024-11-19 05:49:29,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:29,937 INFO L124 PetriNetUnfolderBase]: 361/1326 cut-off events. [2024-11-19 05:49:29,938 INFO L125 PetriNetUnfolderBase]: For 1444/1472 co-relation queries the response was YES. [2024-11-19 05:49:29,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3665 conditions, 1326 events. 361/1326 cut-off events. For 1444/1472 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 7977 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. [2024-11-19 05:49:29,946 INFO L140 encePairwiseOnDemand]: 146/161 looper letters, 100 selfloop transitions, 64 changer transitions 10/335 dead transitions. [2024-11-19 05:49:29,947 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 335 transitions, 2042 flow [2024-11-19 05:49:29,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:49:29,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:49:29,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 859 transitions. [2024-11-19 05:49:29,950 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8892339544513458 [2024-11-19 05:49:29,950 INFO L175 Difference]: Start difference. First operand has 233 places, 274 transitions, 1354 flow. Second operand 6 states and 859 transitions. [2024-11-19 05:49:29,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 335 transitions, 2042 flow [2024-11-19 05:49:29,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 335 transitions, 2024 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-19 05:49:29,968 INFO L231 Difference]: Finished difference. Result has 243 places, 321 transitions, 1922 flow [2024-11-19 05:49:29,969 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} [2024-11-19 05:49:29,972 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 83 predicate places. [2024-11-19 05:49:29,972 INFO L471 AbstractCegarLoop]: Abstraction has has 243 places, 321 transitions, 1922 flow [2024-11-19 05:49:29,973 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) [2024-11-19 05:49:29,973 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:29,973 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] [2024-11-19 05:49:29,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 05:49:29,974 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)] === [2024-11-19 05:49:29,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:29,974 INFO L85 PathProgramCache]: Analyzing trace with hash -661540977, now seen corresponding path program 1 times [2024-11-19 05:49:29,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:29,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35566711] [2024-11-19 05:49:29,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:49:29,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:30,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:49:44,223 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:49:44,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:44,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35566711] [2024-11-19 05:49:44,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35566711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:44,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:44,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-19 05:49:44,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429303504] [2024-11-19 05:49:44,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:44,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-19 05:49:44,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:44,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-19 05:49:44,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2024-11-19 05:49:47,903 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 161 [2024-11-19 05:49:47,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 321 transitions, 1922 flow. Second operand has 17 states, 17 states have (on average 113.94117647058823) internal successors, (1937), 17 states have internal predecessors, (1937), 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) [2024-11-19 05:49:47,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:47,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 161 [2024-11-19 05:49:47,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:50,112 INFO L124 PetriNetUnfolderBase]: 566/1804 cut-off events. [2024-11-19 05:49:50,113 INFO L125 PetriNetUnfolderBase]: For 3430/3510 co-relation queries the response was YES. [2024-11-19 05:49:50,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5866 conditions, 1804 events. 566/1804 cut-off events. For 3430/3510 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 11274 event pairs, 32 based on Foata normal form. 37/1829 useless extension candidates. Maximal degree in co-relation 5589. Up to 562 conditions per place. [2024-11-19 05:49:50,130 INFO L140 encePairwiseOnDemand]: 131/161 looper letters, 227 selfloop transitions, 87 changer transitions 73/530 dead transitions. [2024-11-19 05:49:50,130 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 530 transitions, 4108 flow [2024-11-19 05:49:50,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-19 05:49:50,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-19 05:49:50,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2892 transitions. [2024-11-19 05:49:50,136 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7484472049689441 [2024-11-19 05:49:50,136 INFO L175 Difference]: Start difference. First operand has 243 places, 321 transitions, 1922 flow. Second operand 24 states and 2892 transitions. [2024-11-19 05:49:50,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 530 transitions, 4108 flow [2024-11-19 05:49:50,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 530 transitions, 4022 flow, removed 43 selfloop flow, removed 0 redundant places. [2024-11-19 05:49:50,173 INFO L231 Difference]: Finished difference. Result has 274 places, 358 transitions, 2488 flow [2024-11-19 05:49:50,174 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=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=2488, PETRI_PLACES=274, PETRI_TRANSITIONS=358} [2024-11-19 05:49:50,174 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 114 predicate places. [2024-11-19 05:49:50,175 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 358 transitions, 2488 flow [2024-11-19 05:49:50,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 113.94117647058823) internal successors, (1937), 17 states have internal predecessors, (1937), 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) [2024-11-19 05:49:50,176 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:50,176 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] [2024-11-19 05:49:50,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 05:49:50,176 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)] === [2024-11-19 05:49:50,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:50,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1483784423, now seen corresponding path program 2 times [2024-11-19 05:49:50,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:50,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171392334] [2024-11-19 05:49:50,177 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:49:50,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:50,260 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:49:50,261 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:54,352 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:49:54,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:54,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171392334] [2024-11-19 05:49:54,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171392334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:54,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:54,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:49:54,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932464649] [2024-11-19 05:49:54,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:54,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:49:54,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:54,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:49:54,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:49:56,581 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 161 [2024-11-19 05:49:56,582 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 358 transitions, 2488 flow. Second operand has 13 states, 13 states have (on average 120.0) internal successors, (1560), 13 states have internal predecessors, (1560), 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) [2024-11-19 05:49:56,582 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:56,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 161 [2024-11-19 05:49:56,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:49:57,727 INFO L124 PetriNetUnfolderBase]: 456/1552 cut-off events. [2024-11-19 05:49:57,727 INFO L125 PetriNetUnfolderBase]: For 4320/4449 co-relation queries the response was YES. [2024-11-19 05:49:57,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5962 conditions, 1552 events. 456/1552 cut-off events. For 4320/4449 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 9615 event pairs, 80 based on Foata normal form. 63/1598 useless extension candidates. Maximal degree in co-relation 5675. Up to 662 conditions per place. [2024-11-19 05:49:57,741 INFO L140 encePairwiseOnDemand]: 135/161 looper letters, 174 selfloop transitions, 89 changer transitions 32/441 dead transitions. [2024-11-19 05:49:57,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 441 transitions, 3707 flow [2024-11-19 05:49:57,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 05:49:57,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-19 05:49:57,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1786 transitions. [2024-11-19 05:49:57,744 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7923691215616682 [2024-11-19 05:49:57,744 INFO L175 Difference]: Start difference. First operand has 274 places, 358 transitions, 2488 flow. Second operand 14 states and 1786 transitions. [2024-11-19 05:49:57,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 441 transitions, 3707 flow [2024-11-19 05:49:57,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 441 transitions, 3661 flow, removed 12 selfloop flow, removed 9 redundant places. [2024-11-19 05:49:57,778 INFO L231 Difference]: Finished difference. Result has 276 places, 362 transitions, 2698 flow [2024-11-19 05:49:57,779 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=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2698, PETRI_PLACES=276, PETRI_TRANSITIONS=362} [2024-11-19 05:49:57,780 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 116 predicate places. [2024-11-19 05:49:57,780 INFO L471 AbstractCegarLoop]: Abstraction has has 276 places, 362 transitions, 2698 flow [2024-11-19 05:49:57,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 120.0) internal successors, (1560), 13 states have internal predecessors, (1560), 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) [2024-11-19 05:49:57,781 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:49:57,781 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] [2024-11-19 05:49:57,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 05:49:57,781 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)] === [2024-11-19 05:49:57,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:49:57,782 INFO L85 PathProgramCache]: Analyzing trace with hash -719269087, now seen corresponding path program 3 times [2024-11-19 05:49:57,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:49:57,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038753754] [2024-11-19 05:49:57,783 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 05:49:57,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:49:57,810 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 05:49:57,810 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:49:58,599 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:49:58,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:49:58,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038753754] [2024-11-19 05:49:58,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038753754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:49:58,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:49:58,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 05:49:58,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446386618] [2024-11-19 05:49:58,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:49:58,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 05:49:58,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:49:58,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 05:49:58,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-19 05:49:59,752 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 161 [2024-11-19 05:49:59,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 362 transitions, 2698 flow. Second operand has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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) [2024-11-19 05:49:59,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:49:59,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 161 [2024-11-19 05:49:59,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:50:00,678 INFO L124 PetriNetUnfolderBase]: 780/2434 cut-off events. [2024-11-19 05:50:00,679 INFO L125 PetriNetUnfolderBase]: For 9384/9519 co-relation queries the response was YES. [2024-11-19 05:50:00,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10410 conditions, 2434 events. 780/2434 cut-off events. For 9384/9519 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 17654 event pairs, 58 based on Foata normal form. 59/2460 useless extension candidates. Maximal degree in co-relation 10120. Up to 632 conditions per place. [2024-11-19 05:50:00,700 INFO L140 encePairwiseOnDemand]: 143/161 looper letters, 348 selfloop transitions, 95 changer transitions 12/611 dead transitions. [2024-11-19 05:50:00,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 611 transitions, 6201 flow [2024-11-19 05:50:00,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 05:50:00,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-19 05:50:00,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1509 transitions. [2024-11-19 05:50:00,702 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8520609824957651 [2024-11-19 05:50:00,702 INFO L175 Difference]: Start difference. First operand has 276 places, 362 transitions, 2698 flow. Second operand 11 states and 1509 transitions. [2024-11-19 05:50:00,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 611 transitions, 6201 flow [2024-11-19 05:50:00,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 611 transitions, 6039 flow, removed 2 selfloop flow, removed 9 redundant places. [2024-11-19 05:50:00,758 INFO L231 Difference]: Finished difference. Result has 284 places, 442 transitions, 4094 flow [2024-11-19 05:50:00,759 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=2616, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4094, PETRI_PLACES=284, PETRI_TRANSITIONS=442} [2024-11-19 05:50:00,759 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 124 predicate places. [2024-11-19 05:50:00,759 INFO L471 AbstractCegarLoop]: Abstraction has has 284 places, 442 transitions, 4094 flow [2024-11-19 05:50:00,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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) [2024-11-19 05:50:00,760 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:50:00,761 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] [2024-11-19 05:50:00,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 05:50:00,761 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)] === [2024-11-19 05:50:00,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:50:00,762 INFO L85 PathProgramCache]: Analyzing trace with hash 735229033, now seen corresponding path program 4 times [2024-11-19 05:50:00,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:50:00,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952657296] [2024-11-19 05:50:00,762 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 05:50:00,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:50:00,800 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 05:50:00,800 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:50:02,042 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:50:02,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:50:02,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952657296] [2024-11-19 05:50:02,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952657296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:50:02,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:50:02,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-19 05:50:02,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093543659] [2024-11-19 05:50:02,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:50:02,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 05:50:02,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:50:02,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 05:50:02,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-11-19 05:50:03,764 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 161 [2024-11-19 05:50:03,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 442 transitions, 4094 flow. Second operand has 15 states, 15 states have (on average 120.8) internal successors, (1812), 15 states have internal predecessors, (1812), 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) [2024-11-19 05:50:03,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:50:03,766 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 161 [2024-11-19 05:50:03,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:50:04,966 INFO L124 PetriNetUnfolderBase]: 860/2732 cut-off events. [2024-11-19 05:50:04,966 INFO L125 PetriNetUnfolderBase]: For 13478/13603 co-relation queries the response was YES. [2024-11-19 05:50:04,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11980 conditions, 2732 events. 860/2732 cut-off events. For 13478/13603 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 20259 event pairs, 73 based on Foata normal form. 48/2755 useless extension candidates. Maximal degree in co-relation 11683. Up to 658 conditions per place. [2024-11-19 05:50:04,993 INFO L140 encePairwiseOnDemand]: 136/161 looper letters, 406 selfloop transitions, 115 changer transitions 21/691 dead transitions. [2024-11-19 05:50:04,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 691 transitions, 7540 flow [2024-11-19 05:50:04,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-19 05:50:04,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-19 05:50:04,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2108 transitions. [2024-11-19 05:50:04,996 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8183229813664596 [2024-11-19 05:50:04,996 INFO L175 Difference]: Start difference. First operand has 284 places, 442 transitions, 4094 flow. Second operand 16 states and 2108 transitions. [2024-11-19 05:50:04,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 691 transitions, 7540 flow [2024-11-19 05:50:05,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 691 transitions, 7492 flow, removed 24 selfloop flow, removed 0 redundant places. [2024-11-19 05:50:05,079 INFO L231 Difference]: Finished difference. Result has 305 places, 472 transitions, 4855 flow [2024-11-19 05:50:05,080 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=4046, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=4855, PETRI_PLACES=305, PETRI_TRANSITIONS=472} [2024-11-19 05:50:05,081 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 145 predicate places. [2024-11-19 05:50:05,081 INFO L471 AbstractCegarLoop]: Abstraction has has 305 places, 472 transitions, 4855 flow [2024-11-19 05:50:05,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 120.8) internal successors, (1812), 15 states have internal predecessors, (1812), 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) [2024-11-19 05:50:05,082 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:50:05,082 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] [2024-11-19 05:50:05,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 05:50:05,083 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:50:05,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:50:05,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1812260271, now seen corresponding path program 5 times [2024-11-19 05:50:05,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:50:05,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241604737] [2024-11-19 05:50:05,084 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 05:50:05,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:50:05,189 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-19 05:50:05,189 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:50:10,437 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:50:10,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:50:10,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241604737] [2024-11-19 05:50:10,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241604737] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:50:10,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555065849] [2024-11-19 05:50:10,438 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 05:50:10,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:50:10,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:50:10,439 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) [2024-11-19 05:50:10,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 05:50:10,594 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-19 05:50:10,594 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:50:10,596 INFO L255 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-11-19 05:50:10,602 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:50:10,707 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 16 treesize of output 12 [2024-11-19 05:50:10,769 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 [2024-11-19 05:50:10,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-19 05:50:10,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-11-19 05:50:11,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-11-19 05:50:11,285 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-19 05:50:11,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 22 treesize of output 15 [2024-11-19 05:50:11,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 05:50:11,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 05:50:11,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 05:50:11,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 05:50:11,436 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 05:50:11,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 73 [2024-11-19 05:50:11,623 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-19 05:50:11,624 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:50:12,372 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 49 treesize of output 47 [2024-11-19 05:50:12,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 21 treesize of output 19 [2024-11-19 05:50:12,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 15 treesize of output 8 [2024-11-19 05:50:12,462 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:50:12,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1555065849] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-19 05:50:12,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-19 05:50:12,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [31, 25] total 47 [2024-11-19 05:50:12,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673784778] [2024-11-19 05:50:12,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:50:12,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 05:50:12,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:50:12,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 05:50:12,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=2079, Unknown=0, NotChecked=0, Total=2256 [2024-11-19 05:50:14,471 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 161 [2024-11-19 05:50:14,472 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 472 transitions, 4855 flow. Second operand has 10 states, 10 states have (on average 126.1) internal successors, (1261), 10 states have internal predecessors, (1261), 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) [2024-11-19 05:50:14,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:50:14,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 161 [2024-11-19 05:50:14,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:50:16,727 INFO L124 PetriNetUnfolderBase]: 1329/4017 cut-off events. [2024-11-19 05:50:16,727 INFO L125 PetriNetUnfolderBase]: For 26919/27215 co-relation queries the response was YES. [2024-11-19 05:50:16,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19932 conditions, 4017 events. 1329/4017 cut-off events. For 26919/27215 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 32945 event pairs, 134 based on Foata normal form. 117/4094 useless extension candidates. Maximal degree in co-relation 19627. Up to 1142 conditions per place. [2024-11-19 05:50:16,780 INFO L140 encePairwiseOnDemand]: 133/161 looper letters, 359 selfloop transitions, 278 changer transitions 14/804 dead transitions. [2024-11-19 05:50:16,781 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 804 transitions, 10376 flow [2024-11-19 05:50:16,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-19 05:50:16,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-19 05:50:16,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2779 transitions. [2024-11-19 05:50:16,785 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8219461697722568 [2024-11-19 05:50:16,785 INFO L175 Difference]: Start difference. First operand has 305 places, 472 transitions, 4855 flow. Second operand 21 states and 2779 transitions. [2024-11-19 05:50:16,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 804 transitions, 10376 flow [2024-11-19 05:50:16,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 804 transitions, 10156 flow, removed 99 selfloop flow, removed 7 redundant places. [2024-11-19 05:50:16,914 INFO L231 Difference]: Finished difference. Result has 333 places, 646 transitions, 8562 flow [2024-11-19 05:50:16,914 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=4700, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=472, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=8562, PETRI_PLACES=333, PETRI_TRANSITIONS=646} [2024-11-19 05:50:16,915 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 173 predicate places. [2024-11-19 05:50:16,915 INFO L471 AbstractCegarLoop]: Abstraction has has 333 places, 646 transitions, 8562 flow [2024-11-19 05:50:16,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 126.1) internal successors, (1261), 10 states have internal predecessors, (1261), 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) [2024-11-19 05:50:16,916 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:50:16,916 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] [2024-11-19 05:50:16,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-19 05:50:17,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:50:17,117 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:50:17,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:50:17,117 INFO L85 PathProgramCache]: Analyzing trace with hash -219565757, now seen corresponding path program 1 times [2024-11-19 05:50:17,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:50:17,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268947508] [2024-11-19 05:50:17,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:50:17,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:50:17,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:50:21,496 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:50:21,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:50:21,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268947508] [2024-11-19 05:50:21,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268947508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:50:21,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:50:21,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 05:50:21,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862259470] [2024-11-19 05:50:21,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:50:21,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 05:50:21,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:50:21,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 05:50:21,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-19 05:50:23,111 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 161 [2024-11-19 05:50:23,113 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 646 transitions, 8562 flow. Second operand has 13 states, 13 states have (on average 127.53846153846153) internal successors, (1658), 13 states have internal predecessors, (1658), 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) [2024-11-19 05:50:23,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:50:23,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 161 [2024-11-19 05:50:23,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:50:24,771 INFO L124 PetriNetUnfolderBase]: 1060/3479 cut-off events. [2024-11-19 05:50:24,772 INFO L125 PetriNetUnfolderBase]: For 34106/34443 co-relation queries the response was YES. [2024-11-19 05:50:24,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19233 conditions, 3479 events. 1060/3479 cut-off events. For 34106/34443 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 28834 event pairs, 50 based on Foata normal form. 113/3567 useless extension candidates. Maximal degree in co-relation 18914. Up to 815 conditions per place. [2024-11-19 05:50:24,808 INFO L140 encePairwiseOnDemand]: 139/161 looper letters, 414 selfloop transitions, 150 changer transitions 42/830 dead transitions. [2024-11-19 05:50:24,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 830 transitions, 11778 flow [2024-11-19 05:50:24,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-19 05:50:24,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-19 05:50:24,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2910 transitions. [2024-11-19 05:50:24,811 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8215697346132129 [2024-11-19 05:50:24,811 INFO L175 Difference]: Start difference. First operand has 333 places, 646 transitions, 8562 flow. Second operand 22 states and 2910 transitions. [2024-11-19 05:50:24,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 830 transitions, 11778 flow [2024-11-19 05:50:25,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 830 transitions, 11612 flow, removed 83 selfloop flow, removed 0 redundant places. [2024-11-19 05:50:25,017 INFO L231 Difference]: Finished difference. Result has 363 places, 707 transitions, 9873 flow [2024-11-19 05:50:25,018 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=8444, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=646, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=520, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=9873, PETRI_PLACES=363, PETRI_TRANSITIONS=707} [2024-11-19 05:50:25,018 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 203 predicate places. [2024-11-19 05:50:25,019 INFO L471 AbstractCegarLoop]: Abstraction has has 363 places, 707 transitions, 9873 flow [2024-11-19 05:50:25,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 127.53846153846153) internal successors, (1658), 13 states have internal predecessors, (1658), 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) [2024-11-19 05:50:25,019 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:50:25,020 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] [2024-11-19 05:50:25,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 05:50:25,020 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:50:25,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:50:25,020 INFO L85 PathProgramCache]: Analyzing trace with hash -108904153, now seen corresponding path program 6 times [2024-11-19 05:50:25,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:50:25,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309445950] [2024-11-19 05:50:25,021 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 05:50:25,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:50:25,045 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-19 05:50:25,046 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:50:25,719 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-19 05:50:25,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:50:25,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309445950] [2024-11-19 05:50:25,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309445950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:50:25,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:50:25,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 05:50:25,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457438856] [2024-11-19 05:50:25,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:50:25,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 05:50:25,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:50:25,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 05:50:25,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-19 05:50:26,759 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 161 [2024-11-19 05:50:26,760 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 707 transitions, 9873 flow. Second operand has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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) [2024-11-19 05:50:26,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:50:26,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 161 [2024-11-19 05:50:26,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:50:28,016 INFO L124 PetriNetUnfolderBase]: 1301/3988 cut-off events. [2024-11-19 05:50:28,016 INFO L125 PetriNetUnfolderBase]: For 43243/43606 co-relation queries the response was YES. [2024-11-19 05:50:28,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23801 conditions, 3988 events. 1301/3988 cut-off events. For 43243/43606 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 33054 event pairs, 168 based on Foata normal form. 162/4089 useless extension candidates. Maximal degree in co-relation 23471. Up to 1830 conditions per place. [2024-11-19 05:50:28,068 INFO L140 encePairwiseOnDemand]: 141/161 looper letters, 294 selfloop transitions, 320 changer transitions 16/794 dead transitions. [2024-11-19 05:50:28,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 794 transitions, 12548 flow [2024-11-19 05:50:28,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 05:50:28,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-19 05:50:28,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1874 transitions. [2024-11-19 05:50:28,071 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.831410825199645 [2024-11-19 05:50:28,071 INFO L175 Difference]: Start difference. First operand has 363 places, 707 transitions, 9873 flow. Second operand 14 states and 1874 transitions. [2024-11-19 05:50:28,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 371 places, 794 transitions, 12548 flow [2024-11-19 05:50:28,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 364 places, 794 transitions, 12417 flow, removed 60 selfloop flow, removed 7 redundant places. [2024-11-19 05:50:28,454 INFO L231 Difference]: Finished difference. Result has 371 places, 748 transitions, 11397 flow [2024-11-19 05:50:28,455 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=9758, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=707, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=282, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=11397, PETRI_PLACES=371, PETRI_TRANSITIONS=748} [2024-11-19 05:50:28,456 INFO L277 CegarLoopForPetriNet]: 160 programPoint places, 211 predicate places. [2024-11-19 05:50:28,456 INFO L471 AbstractCegarLoop]: Abstraction has has 371 places, 748 transitions, 11397 flow [2024-11-19 05:50:28,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 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) [2024-11-19 05:50:28,457 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:50:28,457 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] [2024-11-19 05:50:28,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 05:50:28,457 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 05:50:28,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:50:28,458 INFO L85 PathProgramCache]: Analyzing trace with hash -924573979, now seen corresponding path program 7 times [2024-11-19 05:50:28,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:50:28,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660991618] [2024-11-19 05:50:28,459 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 05:50:28,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:50:28,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat