./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 17:06:42,200 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 17:06:42,260 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 17:06:42,265 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 17:06:42,266 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 17:06:42,289 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 17:06:42,289 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 17:06:42,290 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 17:06:42,290 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 17:06:42,290 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 17:06:42,291 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 17:06:42,291 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 17:06:42,291 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 17:06:42,292 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 17:06:42,292 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 17:06:42,292 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 17:06:42,292 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 17:06:42,293 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 17:06:42,293 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 17:06:42,293 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 17:06:42,293 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 17:06:42,294 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 17:06:42,294 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 17:06:42,294 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 17:06:42,297 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 17:06:42,297 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 17:06:42,298 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 17:06:42,298 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 17:06:42,298 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 17:06:42,298 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 17:06:42,299 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 17:06:42,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:06:42,299 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 17:06:42,299 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 17:06:42,299 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 17:06:42,300 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 17:06:42,300 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 17:06:42,300 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 17:06:42,301 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 17:06:42,301 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 17:06:42,301 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 17:06:42,305 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 [2024-10-11 17:06:42,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 17:06:42,549 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 17:06:42,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 17:06:42,553 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 17:06:42,553 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 17:06:42,554 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i [2024-10-11 17:06:43,938 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 17:06:44,121 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 17:06:44,121 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i [2024-10-11 17:06:44,133 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/ff29eee2d/2c043988a29f4d42bdaecf70199c6710/FLAG8783f0768 [2024-10-11 17:06:44,146 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/ff29eee2d/2c043988a29f4d42bdaecf70199c6710 [2024-10-11 17:06:44,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 17:06:44,150 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 17:06:44,152 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 17:06:44,152 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 17:06:44,156 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 17:06:44,157 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:06:44" (1/1) ... [2024-10-11 17:06:44,157 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2423e907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:44, skipping insertion in model container [2024-10-11 17:06:44,158 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:06:44" (1/1) ... [2024-10-11 17:06:44,190 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 17:06:44,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:06:44,470 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 17:06:44,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:06:44,595 INFO L204 MainTranslator]: Completed translation [2024-10-11 17:06:44,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:44 WrapperNode [2024-10-11 17:06:44,595 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 17:06:44,596 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 17:06:44,596 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 17:06:44,596 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 17:06:44,601 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:44" (1/1) ... [2024-10-11 17:06:44,611 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:44" (1/1) ... [2024-10-11 17:06:44,633 INFO L138 Inliner]: procedures = 161, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 75 [2024-10-11 17:06:44,633 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 17:06:44,635 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 17:06:44,635 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 17:06:44,635 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 17:06:44,645 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:44" (1/1) ... [2024-10-11 17:06:44,645 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:44" (1/1) ... [2024-10-11 17:06:44,647 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:44" (1/1) ... [2024-10-11 17:06:44,648 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:44" (1/1) ... [2024-10-11 17:06:44,654 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:44" (1/1) ... [2024-10-11 17:06:44,656 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:44" (1/1) ... [2024-10-11 17:06:44,657 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:44" (1/1) ... [2024-10-11 17:06:44,658 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:44" (1/1) ... [2024-10-11 17:06:44,660 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 17:06:44,661 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 17:06:44,661 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 17:06:44,661 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 17:06:44,664 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:44" (1/1) ... [2024-10-11 17:06:44,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:06:44,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:06:44,709 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 17:06:44,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 17:06:44,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-11 17:06:44,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-11 17:06:44,771 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 17:06:44,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 17:06:44,773 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-11 17:06:44,773 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-11 17:06:44,773 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 17:06:44,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 17:06:44,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 17:06:44,774 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 17:06:44,891 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 17:06:44,893 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 17:06:45,074 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 17:06:45,074 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 17:06:45,104 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 17:06:45,104 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 17:06:45,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:06:45 BoogieIcfgContainer [2024-10-11 17:06:45,104 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 17:06:45,106 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 17:06:45,106 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 17:06:45,110 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 17:06:45,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:06:44" (1/3) ... [2024-10-11 17:06:45,111 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@81fd2db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:06:45, skipping insertion in model container [2024-10-11 17:06:45,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:06:44" (2/3) ... [2024-10-11 17:06:45,111 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@81fd2db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:06:45, skipping insertion in model container [2024-10-11 17:06:45,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:06:45" (3/3) ... [2024-10-11 17:06:45,114 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_23-idxsense_nr.i [2024-10-11 17:06:45,132 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 17:06:45,132 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-11 17:06:45,132 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 17:06:45,195 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 17:06:45,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 103 transitions, 210 flow [2024-10-11 17:06:45,269 INFO L124 PetriNetUnfolderBase]: 2/102 cut-off events. [2024-10-11 17:06:45,269 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:06:45,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 102 events. 2/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 74 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2024-10-11 17:06:45,272 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 103 transitions, 210 flow [2024-10-11 17:06:45,275 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 102 transitions, 207 flow [2024-10-11 17:06:45,281 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:06:45,285 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;@e6c61ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:06:45,286 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-10-11 17:06:45,296 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:06:45,296 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2024-10-11 17:06:45,297 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:06:45,297 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:06:45,297 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] [2024-10-11 17:06:45,298 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-11 17:06:45,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:06:45,301 INFO L85 PathProgramCache]: Analyzing trace with hash -374895960, now seen corresponding path program 1 times [2024-10-11 17:06:45,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:06:45,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626949522] [2024-10-11 17:06:45,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:45,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:06:45,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:45,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:45,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:06:45,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626949522] [2024-10-11 17:06:45,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626949522] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:06:45,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:06:45,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:06:45,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225159142] [2024-10-11 17:06:45,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:06:45,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:06:45,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:06:45,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:06:45,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:06:45,662 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 103 [2024-10-11 17:06:45,664 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 102 transitions, 207 flow. Second operand has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:06:45,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:06:45,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 103 [2024-10-11 17:06:45,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:06:45,739 INFO L124 PetriNetUnfolderBase]: 11/240 cut-off events. [2024-10-11 17:06:45,739 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:06:45,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 240 events. 11/240 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 591 event pairs, 10 based on Foata normal form. 1/222 useless extension candidates. Maximal degree in co-relation 240. Up to 34 conditions per place. [2024-10-11 17:06:45,747 INFO L140 encePairwiseOnDemand]: 99/103 looper letters, 12 selfloop transitions, 2 changer transitions 0/102 dead transitions. [2024-10-11 17:06:45,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 102 transitions, 235 flow [2024-10-11 17:06:45,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:06:45,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:06:45,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2024-10-11 17:06:45,761 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.919093851132686 [2024-10-11 17:06:45,763 INFO L175 Difference]: Start difference. First operand has 104 places, 102 transitions, 207 flow. Second operand 3 states and 284 transitions. [2024-10-11 17:06:45,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 102 transitions, 235 flow [2024-10-11 17:06:45,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 102 transitions, 234 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:06:45,773 INFO L231 Difference]: Finished difference. Result has 106 places, 102 transitions, 216 flow [2024-10-11 17:06:45,776 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=106, PETRI_TRANSITIONS=102} [2024-10-11 17:06:45,781 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 2 predicate places. [2024-10-11 17:06:45,781 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 102 transitions, 216 flow [2024-10-11 17:06:45,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:06:45,781 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:06:45,781 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] [2024-10-11 17:06:45,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 17:06:45,782 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-11 17:06:45,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:06:45,782 INFO L85 PathProgramCache]: Analyzing trace with hash 502389911, now seen corresponding path program 1 times [2024-10-11 17:06:45,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:06:45,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794085692] [2024-10-11 17:06:45,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:45,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:06:45,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:45,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:45,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:06:45,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794085692] [2024-10-11 17:06:45,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794085692] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:06:45,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123446796] [2024-10-11 17:06:45,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:45,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:06:45,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:06:45,950 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:06:45,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 17:06:46,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:46,017 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 17:06:46,020 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:06:46,072 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:46,072 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:06:46,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:46,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123446796] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:06:46,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:06:46,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-11 17:06:46,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833440060] [2024-10-11 17:06:46,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:06:46,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 17:06:46,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:06:46,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 17:06:46,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-11 17:06:46,133 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 103 [2024-10-11 17:06:46,134 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 102 transitions, 216 flow. Second operand has 10 states, 10 states have (on average 88.0) internal successors, (880), 10 states have internal predecessors, (880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:06:46,134 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:06:46,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 103 [2024-10-11 17:06:46,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:06:46,247 INFO L124 PetriNetUnfolderBase]: 11/247 cut-off events. [2024-10-11 17:06:46,247 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:06:46,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 247 events. 11/247 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 587 event pairs, 10 based on Foata normal form. 2/230 useless extension candidates. Maximal degree in co-relation 277. Up to 34 conditions per place. [2024-10-11 17:06:46,251 INFO L140 encePairwiseOnDemand]: 97/103 looper letters, 16 selfloop transitions, 9 changer transitions 0/110 dead transitions. [2024-10-11 17:06:46,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 110 transitions, 284 flow [2024-10-11 17:06:46,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 17:06:46,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 17:06:46,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 801 transitions. [2024-10-11 17:06:46,259 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8640776699029126 [2024-10-11 17:06:46,259 INFO L175 Difference]: Start difference. First operand has 106 places, 102 transitions, 216 flow. Second operand 9 states and 801 transitions. [2024-10-11 17:06:46,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 110 transitions, 284 flow [2024-10-11 17:06:46,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 110 transitions, 282 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:06:46,262 INFO L231 Difference]: Finished difference. Result has 116 places, 108 transitions, 264 flow [2024-10-11 17:06:46,262 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=264, PETRI_PLACES=116, PETRI_TRANSITIONS=108} [2024-10-11 17:06:46,263 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 12 predicate places. [2024-10-11 17:06:46,263 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 108 transitions, 264 flow [2024-10-11 17:06:46,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 88.0) internal successors, (880), 10 states have internal predecessors, (880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:06:46,263 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:06:46,264 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] [2024-10-11 17:06:46,280 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 17:06:46,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:06:46,465 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-11 17:06:46,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:06:46,468 INFO L85 PathProgramCache]: Analyzing trace with hash 371481399, now seen corresponding path program 2 times [2024-10-11 17:06:46,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:06:46,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633189385] [2024-10-11 17:06:46,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:46,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:06:46,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:46,653 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:46,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:06:46,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633189385] [2024-10-11 17:06:46,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633189385] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:06:46,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942096121] [2024-10-11 17:06:46,655 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 17:06:46,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:06:46,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:06:46,659 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:06:46,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 17:06:46,724 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 17:06:46,725 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 17:06:46,725 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-11 17:06:46,728 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:06:46,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-11 17:06:46,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-10-11 17:06:46,870 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:06:46,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-10-11 17:06:46,913 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:06:46,914 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-10-11 17:06:46,944 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-11 17:06:46,944 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:06:46,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942096121] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:06:46,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:06:46,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 14 [2024-10-11 17:06:46,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430762139] [2024-10-11 17:06:46,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:06:46,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 17:06:46,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:06:46,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 17:06:46,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-10-11 17:06:47,150 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 103 [2024-10-11 17:06:47,151 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 108 transitions, 264 flow. Second operand has 7 states, 7 states have (on average 73.14285714285714) internal successors, (512), 7 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:06:47,151 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:06:47,151 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 103 [2024-10-11 17:06:47,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:06:47,408 INFO L124 PetriNetUnfolderBase]: 285/1031 cut-off events. [2024-10-11 17:06:47,408 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-11 17:06:47,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1684 conditions, 1031 events. 285/1031 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 6266 event pairs, 73 based on Foata normal form. 0/985 useless extension candidates. Maximal degree in co-relation 1628. Up to 286 conditions per place. [2024-10-11 17:06:47,413 INFO L140 encePairwiseOnDemand]: 80/103 looper letters, 97 selfloop transitions, 43 changer transitions 0/218 dead transitions. [2024-10-11 17:06:47,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 218 transitions, 764 flow [2024-10-11 17:06:47,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 17:06:47,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 17:06:47,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 646 transitions. [2024-10-11 17:06:47,414 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8959778085991679 [2024-10-11 17:06:47,414 INFO L175 Difference]: Start difference. First operand has 116 places, 108 transitions, 264 flow. Second operand 7 states and 646 transitions. [2024-10-11 17:06:47,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 218 transitions, 764 flow [2024-10-11 17:06:47,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 218 transitions, 758 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-11 17:06:47,418 INFO L231 Difference]: Finished difference. Result has 126 places, 154 transitions, 577 flow [2024-10-11 17:06:47,418 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=577, PETRI_PLACES=126, PETRI_TRANSITIONS=154} [2024-10-11 17:06:47,419 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 22 predicate places. [2024-10-11 17:06:47,419 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 154 transitions, 577 flow [2024-10-11 17:06:47,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 73.14285714285714) internal successors, (512), 7 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:06:47,419 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:06:47,420 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] [2024-10-11 17:06:47,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-11 17:06:47,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:06:47,622 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-11 17:06:47,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:06:47,622 INFO L85 PathProgramCache]: Analyzing trace with hash 2030826381, now seen corresponding path program 1 times [2024-10-11 17:06:47,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:06:47,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938133606] [2024-10-11 17:06:47,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:47,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:06:47,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:47,707 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:47,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:06:47,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938133606] [2024-10-11 17:06:47,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938133606] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:06:47,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827917794] [2024-10-11 17:06:47,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:47,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:06:47,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:06:47,709 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:06:47,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 17:06:47,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:47,760 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 17:06:47,761 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:06:47,791 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:47,791 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:06:47,859 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:47,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1827917794] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:06:47,859 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:06:47,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-11 17:06:47,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200114859] [2024-10-11 17:06:47,860 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:06:47,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-11 17:06:47,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:06:47,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-11 17:06:47,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-11 17:06:47,885 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 103 [2024-10-11 17:06:47,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 154 transitions, 577 flow. Second operand has 18 states, 18 states have (on average 88.0) internal successors, (1584), 18 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:06:47,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:06:47,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 103 [2024-10-11 17:06:47,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:06:48,076 INFO L124 PetriNetUnfolderBase]: 127/780 cut-off events. [2024-10-11 17:06:48,076 INFO L125 PetriNetUnfolderBase]: For 136/151 co-relation queries the response was YES. [2024-10-11 17:06:48,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1493 conditions, 780 events. 127/780 cut-off events. For 136/151 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4662 event pairs, 45 based on Foata normal form. 4/765 useless extension candidates. Maximal degree in co-relation 1359. Up to 132 conditions per place. [2024-10-11 17:06:48,080 INFO L140 encePairwiseOnDemand]: 97/103 looper letters, 20 selfloop transitions, 21 changer transitions 0/172 dead transitions. [2024-10-11 17:06:48,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 172 transitions, 747 flow [2024-10-11 17:06:48,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-11 17:06:48,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-11 17:06:48,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1851 transitions. [2024-10-11 17:06:48,083 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.855755894590846 [2024-10-11 17:06:48,083 INFO L175 Difference]: Start difference. First operand has 126 places, 154 transitions, 577 flow. Second operand 21 states and 1851 transitions. [2024-10-11 17:06:48,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 172 transitions, 747 flow [2024-10-11 17:06:48,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 172 transitions, 746 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:06:48,093 INFO L231 Difference]: Finished difference. Result has 150 places, 167 transitions, 706 flow [2024-10-11 17:06:48,093 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=576, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=706, PETRI_PLACES=150, PETRI_TRANSITIONS=167} [2024-10-11 17:06:48,094 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 46 predicate places. [2024-10-11 17:06:48,094 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 167 transitions, 706 flow [2024-10-11 17:06:48,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 88.0) internal successors, (1584), 18 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:06:48,095 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:06:48,095 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] [2024-10-11 17:06:48,108 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 17:06:48,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:06:48,296 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-11 17:06:48,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:06:48,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1820522061, now seen corresponding path program 2 times [2024-10-11 17:06:48,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:06:48,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056931789] [2024-10-11 17:06:48,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:48,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:06:48,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:48,541 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:48,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:06:48,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056931789] [2024-10-11 17:06:48,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056931789] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:06:48,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691976020] [2024-10-11 17:06:48,542 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 17:06:48,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:06:48,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:06:48,547 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:06:48,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 17:06:48,597 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 17:06:48,597 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 17:06:48,598 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-11 17:06:48,599 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:06:48,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-11 17:06:48,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-10-11 17:06:48,697 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:06:48,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-10-11 17:06:48,727 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 17:06:48,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-10-11 17:06:48,752 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-11 17:06:48,752 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:06:48,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691976020] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:06:48,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:06:48,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [17] total 22 [2024-10-11 17:06:48,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288193035] [2024-10-11 17:06:48,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:06:48,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 17:06:48,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:06:48,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 17:06:48,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2024-10-11 17:06:48,972 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 103 [2024-10-11 17:06:48,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 167 transitions, 706 flow. Second operand has 7 states, 7 states have (on average 84.14285714285714) internal successors, (589), 7 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:06:48,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:06:48,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 103 [2024-10-11 17:06:48,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:06:49,058 INFO L124 PetriNetUnfolderBase]: 141/842 cut-off events. [2024-10-11 17:06:49,059 INFO L125 PetriNetUnfolderBase]: For 147/169 co-relation queries the response was YES. [2024-10-11 17:06:49,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1585 conditions, 842 events. 141/842 cut-off events. For 147/169 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 5142 event pairs, 49 based on Foata normal form. 3/823 useless extension candidates. Maximal degree in co-relation 1444. Up to 129 conditions per place. [2024-10-11 17:06:49,062 INFO L140 encePairwiseOnDemand]: 96/103 looper letters, 20 selfloop transitions, 6 changer transitions 0/174 dead transitions. [2024-10-11 17:06:49,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 174 transitions, 772 flow [2024-10-11 17:06:49,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 17:06:49,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 17:06:49,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 608 transitions. [2024-10-11 17:06:49,063 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8432732316227461 [2024-10-11 17:06:49,064 INFO L175 Difference]: Start difference. First operand has 150 places, 167 transitions, 706 flow. Second operand 7 states and 608 transitions. [2024-10-11 17:06:49,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 174 transitions, 772 flow [2024-10-11 17:06:49,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 174 transitions, 748 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-11 17:06:49,091 INFO L231 Difference]: Finished difference. Result has 149 places, 166 transitions, 692 flow [2024-10-11 17:06:49,091 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=680, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=692, PETRI_PLACES=149, PETRI_TRANSITIONS=166} [2024-10-11 17:06:49,092 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 45 predicate places. [2024-10-11 17:06:49,093 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 166 transitions, 692 flow [2024-10-11 17:06:49,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 84.14285714285714) internal successors, (589), 7 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:06:49,093 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:06:49,093 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] [2024-10-11 17:06:49,111 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 17:06:49,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:06:49,294 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-11 17:06:49,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:06:49,295 INFO L85 PathProgramCache]: Analyzing trace with hash 368504060, now seen corresponding path program 1 times [2024-10-11 17:06:49,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:06:49,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149618976] [2024-10-11 17:06:49,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:49,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:06:49,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:49,689 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:49,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:06:49,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149618976] [2024-10-11 17:06:49,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149618976] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:06:49,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657952590] [2024-10-11 17:06:49,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:49,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:06:49,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:06:49,696 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 17:06:49,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 17:06:49,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:49,771 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 17:06:49,772 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:06:49,850 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:49,850 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 17:06:49,992 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:06:49,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657952590] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 17:06:49,992 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 17:06:49,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-10-11 17:06:49,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105674130] [2024-10-11 17:06:49,993 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 17:06:49,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 17:06:49,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:06:49,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 17:06:49,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-11 17:06:50,016 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 103 [2024-10-11 17:06:50,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 166 transitions, 692 flow. Second operand has 23 states, 23 states have (on average 88.08695652173913) internal successors, (2026), 23 states have internal predecessors, (2026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:06:50,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:06:50,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 103 [2024-10-11 17:06:50,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:06:50,290 INFO L124 PetriNetUnfolderBase]: 127/794 cut-off events. [2024-10-11 17:06:50,291 INFO L125 PetriNetUnfolderBase]: For 253/268 co-relation queries the response was YES. [2024-10-11 17:06:50,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1588 conditions, 794 events. 127/794 cut-off events. For 253/268 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4656 event pairs, 45 based on Foata normal form. 3/779 useless extension candidates. Maximal degree in co-relation 1370. Up to 132 conditions per place. [2024-10-11 17:06:50,294 INFO L140 encePairwiseOnDemand]: 97/103 looper letters, 23 selfloop transitions, 30 changer transitions 0/183 dead transitions. [2024-10-11 17:06:50,294 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 183 transitions, 920 flow [2024-10-11 17:06:50,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-11 17:06:50,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-11 17:06:50,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2636 transitions. [2024-10-11 17:06:50,298 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8530744336569579 [2024-10-11 17:06:50,298 INFO L175 Difference]: Start difference. First operand has 149 places, 166 transitions, 692 flow. Second operand 30 states and 2636 transitions. [2024-10-11 17:06:50,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 183 transitions, 920 flow [2024-10-11 17:06:50,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 183 transitions, 908 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-11 17:06:50,303 INFO L231 Difference]: Finished difference. Result has 176 places, 176 transitions, 832 flow [2024-10-11 17:06:50,303 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=680, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=832, PETRI_PLACES=176, PETRI_TRANSITIONS=176} [2024-10-11 17:06:50,304 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 72 predicate places. [2024-10-11 17:06:50,304 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 176 transitions, 832 flow [2024-10-11 17:06:50,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 88.08695652173913) internal successors, (2026), 23 states have internal predecessors, (2026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:06:50,305 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:06:50,305 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] [2024-10-11 17:06:50,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-11 17:06:50,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:06:50,510 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-11 17:06:50,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:06:50,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1806104845, now seen corresponding path program 2 times [2024-10-11 17:06:50,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:06:50,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488290417] [2024-10-11 17:06:50,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:50,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:06:50,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:50,817 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-11 17:06:50,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:06:50,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488290417] [2024-10-11 17:06:50,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488290417] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:06:50,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:06:50,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:06:50,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976517682] [2024-10-11 17:06:50,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:06:50,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:06:50,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:06:50,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:06:50,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:06:50,984 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 103 [2024-10-11 17:06:50,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 176 transitions, 832 flow. Second operand has 6 states, 6 states have (on average 73.33333333333333) internal successors, (440), 6 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:06:50,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:06:50,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 103 [2024-10-11 17:06:50,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:06:51,205 INFO L124 PetriNetUnfolderBase]: 445/1452 cut-off events. [2024-10-11 17:06:51,205 INFO L125 PetriNetUnfolderBase]: For 726/760 co-relation queries the response was YES. [2024-10-11 17:06:51,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3616 conditions, 1452 events. 445/1452 cut-off events. For 726/760 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 9393 event pairs, 117 based on Foata normal form. 24/1453 useless extension candidates. Maximal degree in co-relation 3398. Up to 640 conditions per place. [2024-10-11 17:06:51,211 INFO L140 encePairwiseOnDemand]: 86/103 looper letters, 109 selfloop transitions, 53 changer transitions 6/267 dead transitions. [2024-10-11 17:06:51,212 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 267 transitions, 1536 flow [2024-10-11 17:06:51,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:06:51,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:06:51,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 534 transitions. [2024-10-11 17:06:51,213 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8640776699029126 [2024-10-11 17:06:51,213 INFO L175 Difference]: Start difference. First operand has 176 places, 176 transitions, 832 flow. Second operand 6 states and 534 transitions. [2024-10-11 17:06:51,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 267 transitions, 1536 flow [2024-10-11 17:06:51,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 267 transitions, 1490 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-10-11 17:06:51,219 INFO L231 Difference]: Finished difference. Result has 168 places, 227 transitions, 1292 flow [2024-10-11 17:06:51,219 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=786, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1292, PETRI_PLACES=168, PETRI_TRANSITIONS=227} [2024-10-11 17:06:51,219 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 64 predicate places. [2024-10-11 17:06:51,219 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 227 transitions, 1292 flow [2024-10-11 17:06:51,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.33333333333333) internal successors, (440), 6 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:06:51,220 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:06:51,220 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] [2024-10-11 17:06:51,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 17:06:51,220 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-11 17:06:51,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:06:51,221 INFO L85 PathProgramCache]: Analyzing trace with hash 499443993, now seen corresponding path program 1 times [2024-10-11 17:06:51,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:06:51,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313309444] [2024-10-11 17:06:51,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:51,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:06:51,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:51,583 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-11 17:06:51,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:06:51,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313309444] [2024-10-11 17:06:51,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313309444] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:06:51,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:06:51,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:06:51,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348169767] [2024-10-11 17:06:51,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:06:51,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:06:51,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:06:51,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:06:51,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:06:51,805 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 103 [2024-10-11 17:06:51,806 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 227 transitions, 1292 flow. Second operand has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:06:51,806 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:06:51,806 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 103 [2024-10-11 17:06:51,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:06:51,933 INFO L124 PetriNetUnfolderBase]: 255/1189 cut-off events. [2024-10-11 17:06:51,933 INFO L125 PetriNetUnfolderBase]: For 1031/1099 co-relation queries the response was YES. [2024-10-11 17:06:51,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2985 conditions, 1189 events. 255/1189 cut-off events. For 1031/1099 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 7981 event pairs, 57 based on Foata normal form. 9/1178 useless extension candidates. Maximal degree in co-relation 2783. Up to 215 conditions per place. [2024-10-11 17:06:51,938 INFO L140 encePairwiseOnDemand]: 97/103 looper letters, 25 selfloop transitions, 5 changer transitions 0/234 dead transitions. [2024-10-11 17:06:51,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 234 transitions, 1366 flow [2024-10-11 17:06:51,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:06:51,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:06:51,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 505 transitions. [2024-10-11 17:06:51,939 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8171521035598706 [2024-10-11 17:06:51,939 INFO L175 Difference]: Start difference. First operand has 168 places, 227 transitions, 1292 flow. Second operand 6 states and 505 transitions. [2024-10-11 17:06:51,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 234 transitions, 1366 flow [2024-10-11 17:06:51,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 234 transitions, 1358 flow, removed 4 selfloop flow, removed 0 redundant places. [2024-10-11 17:06:51,946 INFO L231 Difference]: Finished difference. Result has 172 places, 226 transitions, 1292 flow [2024-10-11 17:06:51,946 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=1282, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1292, PETRI_PLACES=172, PETRI_TRANSITIONS=226} [2024-10-11 17:06:51,947 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 68 predicate places. [2024-10-11 17:06:51,947 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 226 transitions, 1292 flow [2024-10-11 17:06:51,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:06:51,948 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:06:51,948 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] [2024-10-11 17:06:51,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 17:06:51,948 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-11 17:06:51,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:06:51,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1016325404, now seen corresponding path program 1 times [2024-10-11 17:06:51,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:06:51,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378185861] [2024-10-11 17:06:51,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:51,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:06:51,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:52,322 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-11 17:06:52,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:06:52,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378185861] [2024-10-11 17:06:52,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378185861] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:06:52,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:06:52,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:06:52,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918895051] [2024-10-11 17:06:52,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:06:52,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:06:52,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:06:52,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:06:52,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:06:52,480 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 103 [2024-10-11 17:06:52,480 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 226 transitions, 1292 flow. Second operand has 6 states, 6 states have (on average 71.83333333333333) internal successors, (431), 6 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:06:52,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:06:52,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 103 [2024-10-11 17:06:52,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:06:52,763 INFO L124 PetriNetUnfolderBase]: 594/1820 cut-off events. [2024-10-11 17:06:52,764 INFO L125 PetriNetUnfolderBase]: For 2542/2587 co-relation queries the response was YES. [2024-10-11 17:06:52,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5627 conditions, 1820 events. 594/1820 cut-off events. For 2542/2587 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 12337 event pairs, 150 based on Foata normal form. 25/1813 useless extension candidates. Maximal degree in co-relation 5424. Up to 891 conditions per place. [2024-10-11 17:06:52,770 INFO L140 encePairwiseOnDemand]: 86/103 looper letters, 122 selfloop transitions, 58 changer transitions 39/318 dead transitions. [2024-10-11 17:06:52,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 318 transitions, 2254 flow [2024-10-11 17:06:52,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:06:52,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:06:52,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 516 transitions. [2024-10-11 17:06:52,772 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8349514563106796 [2024-10-11 17:06:52,772 INFO L175 Difference]: Start difference. First operand has 172 places, 226 transitions, 1292 flow. Second operand 6 states and 516 transitions. [2024-10-11 17:06:52,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 318 transitions, 2254 flow [2024-10-11 17:06:52,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 318 transitions, 2244 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:06:52,781 INFO L231 Difference]: Finished difference. Result has 176 places, 253 transitions, 1690 flow [2024-10-11 17:06:52,781 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=1282, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1690, PETRI_PLACES=176, PETRI_TRANSITIONS=253} [2024-10-11 17:06:52,782 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 72 predicate places. [2024-10-11 17:06:52,782 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 253 transitions, 1690 flow [2024-10-11 17:06:52,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.83333333333333) internal successors, (431), 6 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:06:52,782 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:06:52,783 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] [2024-10-11 17:06:52,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 17:06:52,783 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-11 17:06:52,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:06:52,783 INFO L85 PathProgramCache]: Analyzing trace with hash -542394151, now seen corresponding path program 1 times [2024-10-11 17:06:52,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:06:52,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475166196] [2024-10-11 17:06:52,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:06:52,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:06:52,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:06:52,850 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-11 17:06:52,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:06:52,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475166196] [2024-10-11 17:06:52,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475166196] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:06:52,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:06:52,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:06:52,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299625550] [2024-10-11 17:06:52,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:06:52,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:06:52,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:06:52,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:06:52,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:06:52,856 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 103 [2024-10-11 17:06:52,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 253 transitions, 1690 flow. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:06:52,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:06:52,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 103 [2024-10-11 17:06:52,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:06:52,883 INFO L124 PetriNetUnfolderBase]: 6/234 cut-off events. [2024-10-11 17:06:52,883 INFO L125 PetriNetUnfolderBase]: For 279/279 co-relation queries the response was YES. [2024-10-11 17:06:52,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 629 conditions, 234 events. 6/234 cut-off events. For 279/279 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 324 event pairs, 3 based on Foata normal form. 2/236 useless extension candidates. Maximal degree in co-relation 423. Up to 23 conditions per place. [2024-10-11 17:06:52,884 INFO L140 encePairwiseOnDemand]: 99/103 looper letters, 0 selfloop transitions, 0 changer transitions 127/127 dead transitions. [2024-10-11 17:06:52,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 127 transitions, 624 flow [2024-10-11 17:06:52,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:06:52,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:06:52,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2024-10-11 17:06:52,885 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9449838187702265 [2024-10-11 17:06:52,885 INFO L175 Difference]: Start difference. First operand has 176 places, 253 transitions, 1690 flow. Second operand 3 states and 292 transitions. [2024-10-11 17:06:52,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 127 transitions, 624 flow [2024-10-11 17:06:52,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 127 transitions, 484 flow, removed 30 selfloop flow, removed 29 redundant places. [2024-10-11 17:06:52,888 INFO L231 Difference]: Finished difference. Result has 145 places, 0 transitions, 0 flow [2024-10-11 17:06:52,888 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=145, PETRI_TRANSITIONS=0} [2024-10-11 17:06:52,888 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 41 predicate places. [2024-10-11 17:06:52,888 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 0 transitions, 0 flow [2024-10-11 17:06:52,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:06:52,891 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2024-10-11 17:06:52,891 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-10-11 17:06:52,891 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-10-11 17:06:52,891 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-10-11 17:06:52,891 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2024-10-11 17:06:52,892 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-10-11 17:06:52,892 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-10-11 17:06:52,892 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-10-11 17:06:52,892 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-10-11 17:06:52,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 17:06:52,892 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1] [2024-10-11 17:06:52,896 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 17:06:52,896 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 17:06:52,898 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 05:06:52 BasicIcfg [2024-10-11 17:06:52,899 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 17:06:52,899 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 17:06:52,899 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 17:06:52,899 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 17:06:52,899 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:06:45" (3/4) ... [2024-10-11 17:06:52,900 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 17:06:52,906 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-10-11 17:06:52,908 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-11 17:06:52,910 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-11 17:06:52,910 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-11 17:06:53,010 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 17:06:53,014 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 17:06:53,014 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 17:06:53,015 INFO L158 Benchmark]: Toolchain (without parser) took 8865.15ms. Allocated memory was 159.4MB in the beginning and 406.8MB in the end (delta: 247.5MB). Free memory was 86.9MB in the beginning and 245.6MB in the end (delta: -158.7MB). Peak memory consumption was 90.3MB. Max. memory is 16.1GB. [2024-10-11 17:06:53,015 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 159.4MB. Free memory is still 110.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 17:06:53,015 INFO L158 Benchmark]: CACSL2BoogieTranslator took 443.91ms. Allocated memory was 159.4MB in the beginning and 266.3MB in the end (delta: 107.0MB). Free memory was 86.8MB in the beginning and 233.1MB in the end (delta: -146.3MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. [2024-10-11 17:06:53,015 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.28ms. Allocated memory is still 266.3MB. Free memory was 233.1MB in the beginning and 231.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 17:06:53,015 INFO L158 Benchmark]: Boogie Preprocessor took 25.24ms. Allocated memory is still 266.3MB. Free memory was 231.0MB in the beginning and 228.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 17:06:53,015 INFO L158 Benchmark]: RCFGBuilder took 443.81ms. Allocated memory is still 266.3MB. Free memory was 228.9MB in the beginning and 209.0MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-11 17:06:53,016 INFO L158 Benchmark]: TraceAbstraction took 7792.61ms. Allocated memory was 266.3MB in the beginning and 406.8MB in the end (delta: 140.5MB). Free memory was 207.9MB in the beginning and 249.8MB in the end (delta: -41.9MB). Peak memory consumption was 99.7MB. Max. memory is 16.1GB. [2024-10-11 17:06:53,016 INFO L158 Benchmark]: Witness Printer took 115.39ms. Allocated memory is still 406.8MB. Free memory was 249.8MB in the beginning and 245.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 17:06:53,017 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 159.4MB. Free memory is still 110.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 443.91ms. Allocated memory was 159.4MB in the beginning and 266.3MB in the end (delta: 107.0MB). Free memory was 86.8MB in the beginning and 233.1MB in the end (delta: -146.3MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.28ms. Allocated memory is still 266.3MB. Free memory was 233.1MB in the beginning and 231.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.24ms. Allocated memory is still 266.3MB. Free memory was 231.0MB in the beginning and 228.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 443.81ms. Allocated memory is still 266.3MB. Free memory was 228.9MB in the beginning and 209.0MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 7792.61ms. Allocated memory was 266.3MB in the beginning and 406.8MB in the end (delta: 140.5MB). Free memory was 207.9MB in the beginning and 249.8MB in the end (delta: -41.9MB). Peak memory consumption was 99.7MB. Max. memory is 16.1GB. * Witness Printer took 115.39ms. Allocated memory is still 406.8MB. Free memory was 249.8MB in the beginning and 245.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 130 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.7s, OverallIterations: 10, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 879 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 590 mSDsluCounter, 101 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 85 mSDsCounter, 367 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2175 IncrementalHoareTripleChecker+Invalid, 2542 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 367 mSolverCounterUnsat, 16 mSDtfsCounter, 2175 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 502 GetRequests, 366 SyntacticMatches, 11 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 822 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1690occurred in iteration=9, InterpolantAutomatonStates: 98, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 917 NumberOfCodeBlocks, 867 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1044 ConstructedInterpolants, 0 QuantifiedInterpolants, 2115 SizeOfPredicates, 22 NumberOfNonLiveVariables, 527 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 18 InterpolantComputations, 7 PerfectInterpolantSequences, 1070/1593 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-11 17:06:53,060 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE