./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/pthread-deagle/arithmetic_prog_bad.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/pthread-deagle/arithmetic_prog_bad.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 051706a1eb405a384d7cf371ab2d9b9605b94715fa3ad16d6c2eb8e3fbb8fc38 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 17:18:08,709 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 17:18:08,776 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 17:18:08,781 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 17:18:08,784 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 17:18:08,811 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 17:18:08,812 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 17:18:08,813 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 17:18:08,813 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 17:18:08,814 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 17:18:08,816 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 17:18:08,816 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 17:18:08,816 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 17:18:08,817 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 17:18:08,820 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 17:18:08,820 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 17:18:08,821 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 17:18:08,821 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 17:18:08,821 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 17:18:08,821 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 17:18:08,822 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 17:18:08,822 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 17:18:08,822 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 17:18:08,823 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 17:18:08,823 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 17:18:08,824 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 17:18:08,825 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 17:18:08,825 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 17:18:08,825 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 17:18:08,825 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 17:18:08,826 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 17:18:08,826 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:18:08,826 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 17:18:08,827 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 17:18:08,827 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 17:18:08,827 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 17:18:08,828 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 17:18:08,828 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 17:18:08,829 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 17:18:08,829 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 17:18:08,829 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 17:18:08,830 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 051706a1eb405a384d7cf371ab2d9b9605b94715fa3ad16d6c2eb8e3fbb8fc38 [2024-10-11 17:18:09,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 17:18:09,109 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 17:18:09,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 17:18:09,113 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 17:18:09,113 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 17:18:09,114 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-deagle/arithmetic_prog_bad.i [2024-10-11 17:18:10,533 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 17:18:10,790 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 17:18:10,790 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-deagle/arithmetic_prog_bad.i [2024-10-11 17:18:10,812 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/b2cd7940e/d21d60b2722f498a9b00bd92d3c10bcc/FLAGa87d66f7f [2024-10-11 17:18:10,825 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/b2cd7940e/d21d60b2722f498a9b00bd92d3c10bcc [2024-10-11 17:18:10,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 17:18:10,829 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 17:18:10,831 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 17:18:10,831 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 17:18:10,837 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 17:18:10,838 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:18:10" (1/1) ... [2024-10-11 17:18:10,839 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ca5881b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:10, skipping insertion in model container [2024-10-11 17:18:10,839 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:18:10" (1/1) ... [2024-10-11 17:18:10,896 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 17:18:11,369 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:18:11,384 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 17:18:11,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:18:11,517 INFO L204 MainTranslator]: Completed translation [2024-10-11 17:18:11,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:11 WrapperNode [2024-10-11 17:18:11,518 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 17:18:11,519 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 17:18:11,519 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 17:18:11,519 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 17:18:11,527 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:11" (1/1) ... [2024-10-11 17:18:11,555 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:11" (1/1) ... [2024-10-11 17:18:11,585 INFO L138 Inliner]: procedures = 243, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 84 [2024-10-11 17:18:11,587 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 17:18:11,588 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 17:18:11,589 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 17:18:11,589 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 17:18:11,598 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:11" (1/1) ... [2024-10-11 17:18:11,599 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:11" (1/1) ... [2024-10-11 17:18:11,602 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:11" (1/1) ... [2024-10-11 17:18:11,606 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:11" (1/1) ... [2024-10-11 17:18:11,616 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:11" (1/1) ... [2024-10-11 17:18:11,623 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:11" (1/1) ... [2024-10-11 17:18:11,629 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:11" (1/1) ... [2024-10-11 17:18:11,630 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:11" (1/1) ... [2024-10-11 17:18:11,633 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 17:18:11,634 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 17:18:11,638 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 17:18:11,638 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 17:18:11,639 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:11" (1/1) ... [2024-10-11 17:18:11,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:18:11,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:18:11,684 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 17:18:11,687 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 17:18:11,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-10-11 17:18:11,732 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 17:18:11,732 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-11 17:18:11,732 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-11 17:18:11,732 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-11 17:18:11,732 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-11 17:18:11,732 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 17:18:11,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 17:18:11,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-11 17:18:11,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 17:18:11,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 17:18:11,734 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 17:18:11,902 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 17:18:11,905 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 17:18:12,167 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 17:18:12,167 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 17:18:12,206 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 17:18:12,207 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-11 17:18:12,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:18:12 BoogieIcfgContainer [2024-10-11 17:18:12,208 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 17:18:12,210 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 17:18:12,211 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 17:18:12,214 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 17:18:12,214 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:18:10" (1/3) ... [2024-10-11 17:18:12,215 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e8ba4ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:18:12, skipping insertion in model container [2024-10-11 17:18:12,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:18:11" (2/3) ... [2024-10-11 17:18:12,216 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e8ba4ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:18:12, skipping insertion in model container [2024-10-11 17:18:12,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:18:12" (3/3) ... [2024-10-11 17:18:12,218 INFO L112 eAbstractionObserver]: Analyzing ICFG arithmetic_prog_bad.i [2024-10-11 17:18:12,235 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 17:18:12,236 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2024-10-11 17:18:12,236 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 17:18:12,315 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-11 17:18:12,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 185 places, 189 transitions, 392 flow [2024-10-11 17:18:12,493 INFO L124 PetriNetUnfolderBase]: 11/187 cut-off events. [2024-10-11 17:18:12,493 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 17:18:12,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 187 events. 11/187 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 271 event pairs, 0 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 106. Up to 3 conditions per place. [2024-10-11 17:18:12,509 INFO L82 GeneralOperation]: Start removeDead. Operand has 185 places, 189 transitions, 392 flow [2024-10-11 17:18:12,517 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 172 places, 173 transitions, 358 flow [2024-10-11 17:18:12,532 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:18:12,541 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;@562dcb8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:18:12,541 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-10-11 17:18:12,561 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:18:12,565 INFO L124 PetriNetUnfolderBase]: 0/51 cut-off events. [2024-10-11 17:18:12,565 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:18:12,565 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:12,566 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:18:12,567 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-11 17:18:12,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:12,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1268163189, now seen corresponding path program 1 times [2024-10-11 17:18:12,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:12,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236036600] [2024-10-11 17:18:12,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:12,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:12,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:12,887 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 17:18:12,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:12,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236036600] [2024-10-11 17:18:12,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236036600] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:12,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:12,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:18:12,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661762667] [2024-10-11 17:18:12,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:12,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:18:12,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:12,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:18:12,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:18:12,972 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 189 [2024-10-11 17:18:12,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 173 transitions, 358 flow. Second operand has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 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 17:18:12,976 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:12,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 189 [2024-10-11 17:18:12,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:13,118 INFO L124 PetriNetUnfolderBase]: 89/463 cut-off events. [2024-10-11 17:18:13,118 INFO L125 PetriNetUnfolderBase]: For 56/62 co-relation queries the response was YES. [2024-10-11 17:18:13,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 663 conditions, 463 events. 89/463 cut-off events. For 56/62 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2071 event pairs, 53 based on Foata normal form. 23/424 useless extension candidates. Maximal degree in co-relation 517. Up to 163 conditions per place. [2024-10-11 17:18:13,128 INFO L140 encePairwiseOnDemand]: 182/189 looper letters, 21 selfloop transitions, 2 changer transitions 0/168 dead transitions. [2024-10-11 17:18:13,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 168 transitions, 394 flow [2024-10-11 17:18:13,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:18:13,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:18:13,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 499 transitions. [2024-10-11 17:18:13,145 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8800705467372134 [2024-10-11 17:18:13,146 INFO L175 Difference]: Start difference. First operand has 172 places, 173 transitions, 358 flow. Second operand 3 states and 499 transitions. [2024-10-11 17:18:13,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 168 transitions, 394 flow [2024-10-11 17:18:13,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 168 transitions, 386 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-11 17:18:13,156 INFO L231 Difference]: Finished difference. Result has 169 places, 168 transitions, 344 flow [2024-10-11 17:18:13,158 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=169, PETRI_TRANSITIONS=168} [2024-10-11 17:18:13,162 INFO L277 CegarLoopForPetriNet]: 172 programPoint places, -3 predicate places. [2024-10-11 17:18:13,164 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 168 transitions, 344 flow [2024-10-11 17:18:13,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 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 17:18:13,165 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:13,166 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:18:13,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 17:18:13,166 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-11 17:18:13,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:13,168 INFO L85 PathProgramCache]: Analyzing trace with hash -818713601, now seen corresponding path program 1 times [2024-10-11 17:18:13,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:13,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417057195] [2024-10-11 17:18:13,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:13,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:13,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:13,260 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 17:18:13,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:13,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417057195] [2024-10-11 17:18:13,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417057195] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:13,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:13,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:18:13,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760109582] [2024-10-11 17:18:13,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:13,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:18:13,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:13,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:18:13,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:18:13,299 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 189 [2024-10-11 17:18:13,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 168 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 159.33333333333334) internal successors, (478), 3 states have internal predecessors, (478), 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 17:18:13,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:13,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 189 [2024-10-11 17:18:13,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:13,417 INFO L124 PetriNetUnfolderBase]: 75/510 cut-off events. [2024-10-11 17:18:13,418 INFO L125 PetriNetUnfolderBase]: For 18/20 co-relation queries the response was YES. [2024-10-11 17:18:13,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 649 conditions, 510 events. 75/510 cut-off events. For 18/20 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2533 event pairs, 33 based on Foata normal form. 0/432 useless extension candidates. Maximal degree in co-relation 590. Up to 128 conditions per place. [2024-10-11 17:18:13,425 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 20 selfloop transitions, 2 changer transitions 0/167 dead transitions. [2024-10-11 17:18:13,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 167 transitions, 386 flow [2024-10-11 17:18:13,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:18:13,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:18:13,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 497 transitions. [2024-10-11 17:18:13,428 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8765432098765432 [2024-10-11 17:18:13,428 INFO L175 Difference]: Start difference. First operand has 169 places, 168 transitions, 344 flow. Second operand 3 states and 497 transitions. [2024-10-11 17:18:13,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 167 transitions, 386 flow [2024-10-11 17:18:13,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 167 transitions, 382 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:18:13,435 INFO L231 Difference]: Finished difference. Result has 168 places, 167 transitions, 342 flow [2024-10-11 17:18:13,435 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=342, PETRI_PLACES=168, PETRI_TRANSITIONS=167} [2024-10-11 17:18:13,436 INFO L277 CegarLoopForPetriNet]: 172 programPoint places, -4 predicate places. [2024-10-11 17:18:13,436 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 167 transitions, 342 flow [2024-10-11 17:18:13,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 159.33333333333334) internal successors, (478), 3 states have internal predecessors, (478), 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 17:18:13,437 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:13,437 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:18:13,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 17:18:13,438 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-11 17:18:13,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:13,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1351386167, now seen corresponding path program 1 times [2024-10-11 17:18:13,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:13,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552577543] [2024-10-11 17:18:13,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:13,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:13,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:13,552 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 17:18:13,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:13,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552577543] [2024-10-11 17:18:13,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552577543] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:13,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:13,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:18:13,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948621822] [2024-10-11 17:18:13,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:13,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:18:13,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:13,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:18:13,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:18:13,593 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 189 [2024-10-11 17:18:13,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 167 transitions, 342 flow. Second operand has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 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 17:18:13,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:13,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 189 [2024-10-11 17:18:13,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:13,751 INFO L124 PetriNetUnfolderBase]: 207/1012 cut-off events. [2024-10-11 17:18:13,752 INFO L125 PetriNetUnfolderBase]: For 29/38 co-relation queries the response was YES. [2024-10-11 17:18:13,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1432 conditions, 1012 events. 207/1012 cut-off events. For 29/38 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 6081 event pairs, 55 based on Foata normal form. 1/882 useless extension candidates. Maximal degree in co-relation 1368. Up to 266 conditions per place. [2024-10-11 17:18:13,762 INFO L140 encePairwiseOnDemand]: 175/189 looper letters, 37 selfloop transitions, 10 changer transitions 0/187 dead transitions. [2024-10-11 17:18:13,762 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 187 transitions, 478 flow [2024-10-11 17:18:13,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:18:13,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:18:13,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 516 transitions. [2024-10-11 17:18:13,764 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.91005291005291 [2024-10-11 17:18:13,764 INFO L175 Difference]: Start difference. First operand has 168 places, 167 transitions, 342 flow. Second operand 3 states and 516 transitions. [2024-10-11 17:18:13,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 187 transitions, 478 flow [2024-10-11 17:18:13,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 187 transitions, 474 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:18:13,773 INFO L231 Difference]: Finished difference. Result has 170 places, 177 transitions, 426 flow [2024-10-11 17:18:13,773 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=426, PETRI_PLACES=170, PETRI_TRANSITIONS=177} [2024-10-11 17:18:13,774 INFO L277 CegarLoopForPetriNet]: 172 programPoint places, -2 predicate places. [2024-10-11 17:18:13,775 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 177 transitions, 426 flow [2024-10-11 17:18:13,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 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 17:18:13,776 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:13,776 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:18:13,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 17:18:13,776 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-11 17:18:13,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:13,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1142080892, now seen corresponding path program 1 times [2024-10-11 17:18:13,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:13,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801267950] [2024-10-11 17:18:13,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:13,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:13,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:13,910 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 17:18:13,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:13,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801267950] [2024-10-11 17:18:13,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801267950] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:13,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:13,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:18:13,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452074891] [2024-10-11 17:18:13,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:13,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:18:13,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:13,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:18:13,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:18:13,929 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 189 [2024-10-11 17:18:13,930 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 177 transitions, 426 flow. Second operand has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 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 17:18:13,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:13,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 189 [2024-10-11 17:18:13,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:14,148 INFO L124 PetriNetUnfolderBase]: 266/1611 cut-off events. [2024-10-11 17:18:14,149 INFO L125 PetriNetUnfolderBase]: For 119/121 co-relation queries the response was YES. [2024-10-11 17:18:14,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2358 conditions, 1611 events. 266/1611 cut-off events. For 119/121 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 11168 event pairs, 87 based on Foata normal form. 6/1418 useless extension candidates. Maximal degree in co-relation 2027. Up to 260 conditions per place. [2024-10-11 17:18:14,160 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 24 selfloop transitions, 2 changer transitions 0/187 dead transitions. [2024-10-11 17:18:14,161 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 187 transitions, 499 flow [2024-10-11 17:18:14,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:18:14,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:18:14,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 525 transitions. [2024-10-11 17:18:14,163 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9259259259259259 [2024-10-11 17:18:14,163 INFO L175 Difference]: Start difference. First operand has 170 places, 177 transitions, 426 flow. Second operand 3 states and 525 transitions. [2024-10-11 17:18:14,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 187 transitions, 499 flow [2024-10-11 17:18:14,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 187 transitions, 479 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:18:14,169 INFO L231 Difference]: Finished difference. Result has 171 places, 178 transitions, 418 flow [2024-10-11 17:18:14,170 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=418, PETRI_PLACES=171, PETRI_TRANSITIONS=178} [2024-10-11 17:18:14,171 INFO L277 CegarLoopForPetriNet]: 172 programPoint places, -1 predicate places. [2024-10-11 17:18:14,171 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 178 transitions, 418 flow [2024-10-11 17:18:14,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 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 17:18:14,171 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:14,172 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:18:14,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 17:18:14,172 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-11 17:18:14,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:14,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1942319187, now seen corresponding path program 1 times [2024-10-11 17:18:14,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:14,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637985940] [2024-10-11 17:18:14,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:14,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:14,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:14,252 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 17:18:14,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:14,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637985940] [2024-10-11 17:18:14,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637985940] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:14,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:14,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:18:14,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275838417] [2024-10-11 17:18:14,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:14,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:18:14,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:14,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:18:14,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:18:14,285 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 189 [2024-10-11 17:18:14,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 178 transitions, 418 flow. Second operand has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 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 17:18:14,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:14,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 189 [2024-10-11 17:18:14,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:14,532 INFO L124 PetriNetUnfolderBase]: 443/1940 cut-off events. [2024-10-11 17:18:14,532 INFO L125 PetriNetUnfolderBase]: For 279/326 co-relation queries the response was YES. [2024-10-11 17:18:14,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3186 conditions, 1940 events. 443/1940 cut-off events. For 279/326 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 13622 event pairs, 166 based on Foata normal form. 15/1729 useless extension candidates. Maximal degree in co-relation 2861. Up to 688 conditions per place. [2024-10-11 17:18:14,547 INFO L140 encePairwiseOnDemand]: 182/189 looper letters, 32 selfloop transitions, 10 changer transitions 0/191 dead transitions. [2024-10-11 17:18:14,547 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 191 transitions, 541 flow [2024-10-11 17:18:14,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:18:14,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:18:14,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 511 transitions. [2024-10-11 17:18:14,549 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9012345679012346 [2024-10-11 17:18:14,549 INFO L175 Difference]: Start difference. First operand has 171 places, 178 transitions, 418 flow. Second operand 3 states and 511 transitions. [2024-10-11 17:18:14,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 191 transitions, 541 flow [2024-10-11 17:18:14,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 191 transitions, 539 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:18:14,554 INFO L231 Difference]: Finished difference. Result has 174 places, 186 transitions, 502 flow [2024-10-11 17:18:14,554 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=502, PETRI_PLACES=174, PETRI_TRANSITIONS=186} [2024-10-11 17:18:14,556 INFO L277 CegarLoopForPetriNet]: 172 programPoint places, 2 predicate places. [2024-10-11 17:18:14,557 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 186 transitions, 502 flow [2024-10-11 17:18:14,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 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 17:18:14,558 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:14,558 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:18:14,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 17:18:14,559 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-11 17:18:14,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:14,560 INFO L85 PathProgramCache]: Analyzing trace with hash -208873438, now seen corresponding path program 1 times [2024-10-11 17:18:14,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:14,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962419923] [2024-10-11 17:18:14,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:14,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:14,629 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 17:18:14,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:14,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962419923] [2024-10-11 17:18:14,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962419923] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:14,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:14,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:18:14,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255274902] [2024-10-11 17:18:14,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:14,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:18:14,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:14,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:18:14,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:18:14,647 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 189 [2024-10-11 17:18:14,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 186 transitions, 502 flow. Second operand has 3 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 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 17:18:14,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:14,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 189 [2024-10-11 17:18:14,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:14,791 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([467] L881-6-->L880-1: Formula: (= |v_#race~num~0_1| 0) InVars {} OutVars{#race~num~0=|v_#race~num~0_1|} AuxVars[] AssignedVars[#race~num~0][104], [111#L880-1true, 201#(= thread2Thread1of1ForFork1_~j~0 0), Black: 194#true, 70#L894-2true, 210#(= ~num~0 0), 144#L914-4true, 203#true, Black: 205#(= |#race~num~0| |thread1Thread1of1ForFork0_#t~nondet8|)]) [2024-10-11 17:18:14,791 INFO L294 olderBase$Statistics]: this new event has 114 ancestors and is cut-off event [2024-10-11 17:18:14,792 INFO L297 olderBase$Statistics]: existing Event has 89 ancestors and is cut-off event [2024-10-11 17:18:14,792 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2024-10-11 17:18:14,792 INFO L297 olderBase$Statistics]: existing Event has 109 ancestors and is cut-off event [2024-10-11 17:18:14,934 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([467] L881-6-->L880-1: Formula: (= |v_#race~num~0_1| 0) InVars {} OutVars{#race~num~0=|v_#race~num~0_1|} AuxVars[] AssignedVars[#race~num~0][104], [111#L880-1true, 208#true, Black: 194#true, 70#L894-2true, Black: 201#(= thread2Thread1of1ForFork1_~j~0 0), 144#L914-4true, Black: 205#(= |#race~num~0| |thread1Thread1of1ForFork0_#t~nondet8|), 203#true]) [2024-10-11 17:18:14,935 INFO L294 olderBase$Statistics]: this new event has 156 ancestors and is cut-off event [2024-10-11 17:18:14,935 INFO L297 olderBase$Statistics]: existing Event has 136 ancestors and is cut-off event [2024-10-11 17:18:14,935 INFO L297 olderBase$Statistics]: existing Event has 131 ancestors and is cut-off event [2024-10-11 17:18:14,935 INFO L297 olderBase$Statistics]: existing Event has 131 ancestors and is cut-off event [2024-10-11 17:18:14,941 INFO L292 olderBase$Statistics]: inserting event number 5 for the transition-marking pair ([467] L881-6-->L880-1: Formula: (= |v_#race~num~0_1| 0) InVars {} OutVars{#race~num~0=|v_#race~num~0_1|} AuxVars[] AssignedVars[#race~num~0][104], [208#true, 111#L880-1true, Black: 194#true, 70#L894-2true, Black: 201#(= thread2Thread1of1ForFork1_~j~0 0), 144#L914-4true, Black: 205#(= |#race~num~0| |thread1Thread1of1ForFork0_#t~nondet8|), 203#true]) [2024-10-11 17:18:14,941 INFO L294 olderBase$Statistics]: this new event has 161 ancestors and is cut-off event [2024-10-11 17:18:14,941 INFO L297 olderBase$Statistics]: existing Event has 136 ancestors and is cut-off event [2024-10-11 17:18:14,941 INFO L297 olderBase$Statistics]: existing Event has 131 ancestors and is cut-off event [2024-10-11 17:18:14,941 INFO L297 olderBase$Statistics]: existing Event has 131 ancestors and is cut-off event [2024-10-11 17:18:14,942 INFO L297 olderBase$Statistics]: existing Event has 156 ancestors and is cut-off event [2024-10-11 17:18:14,942 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([467] L881-6-->L880-1: Formula: (= |v_#race~num~0_1| 0) InVars {} OutVars{#race~num~0=|v_#race~num~0_1|} AuxVars[] AssignedVars[#race~num~0][104], [111#L880-1true, 208#true, Black: 194#true, Black: 201#(= thread2Thread1of1ForFork1_~j~0 0), 53#L894-1true, 144#L914-4true, Black: 205#(= |#race~num~0| |thread1Thread1of1ForFork0_#t~nondet8|), 203#true]) [2024-10-11 17:18:14,942 INFO L294 olderBase$Statistics]: this new event has 160 ancestors and is cut-off event [2024-10-11 17:18:14,942 INFO L297 olderBase$Statistics]: existing Event has 130 ancestors and is cut-off event [2024-10-11 17:18:14,942 INFO L297 olderBase$Statistics]: existing Event has 155 ancestors and is cut-off event [2024-10-11 17:18:14,942 INFO L297 olderBase$Statistics]: existing Event has 135 ancestors and is cut-off event [2024-10-11 17:18:14,944 INFO L124 PetriNetUnfolderBase]: 542/2296 cut-off events. [2024-10-11 17:18:14,944 INFO L125 PetriNetUnfolderBase]: For 433/469 co-relation queries the response was YES. [2024-10-11 17:18:14,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3944 conditions, 2296 events. 542/2296 cut-off events. For 433/469 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 15999 event pairs, 154 based on Foata normal form. 21/2022 useless extension candidates. Maximal degree in co-relation 3514. Up to 449 conditions per place. [2024-10-11 17:18:14,960 INFO L140 encePairwiseOnDemand]: 184/189 looper letters, 27 selfloop transitions, 3 changer transitions 0/197 dead transitions. [2024-10-11 17:18:14,960 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 197 transitions, 586 flow [2024-10-11 17:18:14,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:18:14,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:18:14,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 521 transitions. [2024-10-11 17:18:14,962 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9188712522045855 [2024-10-11 17:18:14,962 INFO L175 Difference]: Start difference. First operand has 174 places, 186 transitions, 502 flow. Second operand 3 states and 521 transitions. [2024-10-11 17:18:14,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 197 transitions, 586 flow [2024-10-11 17:18:14,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 197 transitions, 566 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:18:14,968 INFO L231 Difference]: Finished difference. Result has 176 places, 188 transitions, 506 flow [2024-10-11 17:18:14,969 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=506, PETRI_PLACES=176, PETRI_TRANSITIONS=188} [2024-10-11 17:18:14,969 INFO L277 CegarLoopForPetriNet]: 172 programPoint places, 4 predicate places. [2024-10-11 17:18:14,970 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 188 transitions, 506 flow [2024-10-11 17:18:14,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 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 17:18:14,970 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:14,971 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:18:14,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 17:18:14,971 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-11 17:18:14,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:14,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1166635498, now seen corresponding path program 1 times [2024-10-11 17:18:14,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:14,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310289144] [2024-10-11 17:18:14,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:14,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:14,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:15,121 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 17:18:15,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:15,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310289144] [2024-10-11 17:18:15,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310289144] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:15,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:15,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 17:18:15,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897054049] [2024-10-11 17:18:15,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:15,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:18:15,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:15,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:18:15,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:18:15,145 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 189 [2024-10-11 17:18:15,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 188 transitions, 506 flow. Second operand has 3 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 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 17:18:15,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:15,146 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 189 [2024-10-11 17:18:15,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:15,230 INFO L124 PetriNetUnfolderBase]: 51/580 cut-off events. [2024-10-11 17:18:15,231 INFO L125 PetriNetUnfolderBase]: For 61/61 co-relation queries the response was YES. [2024-10-11 17:18:15,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 889 conditions, 580 events. 51/580 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2220 event pairs, 7 based on Foata normal form. 22/569 useless extension candidates. Maximal degree in co-relation 553. Up to 87 conditions per place. [2024-10-11 17:18:15,234 INFO L140 encePairwiseOnDemand]: 181/189 looper letters, 8 selfloop transitions, 8 changer transitions 0/169 dead transitions. [2024-10-11 17:18:15,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 169 transitions, 442 flow [2024-10-11 17:18:15,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:18:15,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:18:15,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 524 transitions. [2024-10-11 17:18:15,237 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9241622574955908 [2024-10-11 17:18:15,238 INFO L175 Difference]: Start difference. First operand has 176 places, 188 transitions, 506 flow. Second operand 3 states and 524 transitions. [2024-10-11 17:18:15,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 169 transitions, 442 flow [2024-10-11 17:18:15,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 169 transitions, 410 flow, removed 11 selfloop flow, removed 4 redundant places. [2024-10-11 17:18:15,243 INFO L231 Difference]: Finished difference. Result has 169 places, 167 transitions, 388 flow [2024-10-11 17:18:15,243 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=388, PETRI_PLACES=169, PETRI_TRANSITIONS=167} [2024-10-11 17:18:15,244 INFO L277 CegarLoopForPetriNet]: 172 programPoint places, -3 predicate places. [2024-10-11 17:18:15,245 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 167 transitions, 388 flow [2024-10-11 17:18:15,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 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 17:18:15,245 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:15,246 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:18:15,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 17:18:15,246 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-11 17:18:15,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:15,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1224642438, now seen corresponding path program 1 times [2024-10-11 17:18:15,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:15,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53790138] [2024-10-11 17:18:15,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:15,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:15,310 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 17:18:15,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:15,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53790138] [2024-10-11 17:18:15,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53790138] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:15,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:15,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:18:15,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896366781] [2024-10-11 17:18:15,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:15,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:18:15,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:15,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:18:15,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:18:15,340 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 189 [2024-10-11 17:18:15,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 167 transitions, 388 flow. Second operand has 3 states, 3 states have (on average 160.66666666666666) internal successors, (482), 3 states have internal predecessors, (482), 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 17:18:15,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:15,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 189 [2024-10-11 17:18:15,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:15,462 INFO L124 PetriNetUnfolderBase]: 80/655 cut-off events. [2024-10-11 17:18:15,467 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2024-10-11 17:18:15,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1018 conditions, 655 events. 80/655 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2898 event pairs, 22 based on Foata normal form. 1/622 useless extension candidates. Maximal degree in co-relation 674. Up to 115 conditions per place. [2024-10-11 17:18:15,471 INFO L140 encePairwiseOnDemand]: 181/189 looper letters, 20 selfloop transitions, 4 changer transitions 3/169 dead transitions. [2024-10-11 17:18:15,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 169 transitions, 451 flow [2024-10-11 17:18:15,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:18:15,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:18:15,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 502 transitions. [2024-10-11 17:18:15,474 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8853615520282186 [2024-10-11 17:18:15,474 INFO L175 Difference]: Start difference. First operand has 169 places, 167 transitions, 388 flow. Second operand 3 states and 502 transitions. [2024-10-11 17:18:15,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 169 transitions, 451 flow [2024-10-11 17:18:15,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 169 transitions, 439 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:18:15,483 INFO L231 Difference]: Finished difference. Result has 167 places, 161 transitions, 376 flow [2024-10-11 17:18:15,483 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=376, PETRI_PLACES=167, PETRI_TRANSITIONS=161} [2024-10-11 17:18:15,484 INFO L277 CegarLoopForPetriNet]: 172 programPoint places, -5 predicate places. [2024-10-11 17:18:15,485 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 161 transitions, 376 flow [2024-10-11 17:18:15,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 160.66666666666666) internal successors, (482), 3 states have internal predecessors, (482), 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 17:18:15,485 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:15,486 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:18:15,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 17:18:15,486 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-11 17:18:15,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:15,487 INFO L85 PathProgramCache]: Analyzing trace with hash 499437117, now seen corresponding path program 1 times [2024-10-11 17:18:15,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:15,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117012608] [2024-10-11 17:18:15,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:15,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:15,540 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 17:18:15,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:15,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117012608] [2024-10-11 17:18:15,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117012608] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:15,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:15,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:18:15,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081017413] [2024-10-11 17:18:15,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:15,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:18:15,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:15,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:18:15,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:18:15,572 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 189 [2024-10-11 17:18:15,573 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 161 transitions, 376 flow. Second operand has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 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 17:18:15,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:15,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 189 [2024-10-11 17:18:15,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:15,667 INFO L124 PetriNetUnfolderBase]: 75/618 cut-off events. [2024-10-11 17:18:15,667 INFO L125 PetriNetUnfolderBase]: For 65/65 co-relation queries the response was YES. [2024-10-11 17:18:15,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 942 conditions, 618 events. 75/618 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2694 event pairs, 29 based on Foata normal form. 0/593 useless extension candidates. Maximal degree in co-relation 598. Up to 142 conditions per place. [2024-10-11 17:18:15,670 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 19 selfloop transitions, 2 changer transitions 0/161 dead transitions. [2024-10-11 17:18:15,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 161 transitions, 419 flow [2024-10-11 17:18:15,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:18:15,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:18:15,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 502 transitions. [2024-10-11 17:18:15,673 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8853615520282186 [2024-10-11 17:18:15,673 INFO L175 Difference]: Start difference. First operand has 167 places, 161 transitions, 376 flow. Second operand 3 states and 502 transitions. [2024-10-11 17:18:15,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 161 transitions, 419 flow [2024-10-11 17:18:15,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 161 transitions, 411 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:18:15,676 INFO L231 Difference]: Finished difference. Result has 163 places, 160 transitions, 370 flow [2024-10-11 17:18:15,676 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=370, PETRI_PLACES=163, PETRI_TRANSITIONS=160} [2024-10-11 17:18:15,677 INFO L277 CegarLoopForPetriNet]: 172 programPoint places, -9 predicate places. [2024-10-11 17:18:15,677 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 160 transitions, 370 flow [2024-10-11 17:18:15,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 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 17:18:15,678 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:15,678 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:18:15,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 17:18:15,679 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-11 17:18:15,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:15,679 INFO L85 PathProgramCache]: Analyzing trace with hash -833873819, now seen corresponding path program 1 times [2024-10-11 17:18:15,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:15,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418171643] [2024-10-11 17:18:15,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:15,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:15,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:15,725 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 17:18:15,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:15,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418171643] [2024-10-11 17:18:15,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418171643] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:15,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:18:15,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:18:15,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436584460] [2024-10-11 17:18:15,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:15,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:18:15,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:15,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:18:15,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:18:15,759 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 189 [2024-10-11 17:18:15,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 160 transitions, 370 flow. Second operand has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 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 17:18:15,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:15,760 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 189 [2024-10-11 17:18:15,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:15,839 INFO L124 PetriNetUnfolderBase]: 71/573 cut-off events. [2024-10-11 17:18:15,840 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2024-10-11 17:18:15,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 910 conditions, 573 events. 71/573 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2363 event pairs, 30 based on Foata normal form. 0/554 useless extension candidates. Maximal degree in co-relation 541. Up to 176 conditions per place. [2024-10-11 17:18:15,843 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 23 selfloop transitions, 2 changer transitions 0/160 dead transitions. [2024-10-11 17:18:15,843 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 160 transitions, 421 flow [2024-10-11 17:18:15,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:18:15,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:18:15,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 501 transitions. [2024-10-11 17:18:15,845 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8835978835978836 [2024-10-11 17:18:15,845 INFO L175 Difference]: Start difference. First operand has 163 places, 160 transitions, 370 flow. Second operand 3 states and 501 transitions. [2024-10-11 17:18:15,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 160 transitions, 421 flow [2024-10-11 17:18:15,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 160 transitions, 417 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:18:15,849 INFO L231 Difference]: Finished difference. Result has 162 places, 159 transitions, 368 flow [2024-10-11 17:18:15,849 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=368, PETRI_PLACES=162, PETRI_TRANSITIONS=159} [2024-10-11 17:18:15,850 INFO L277 CegarLoopForPetriNet]: 172 programPoint places, -10 predicate places. [2024-10-11 17:18:15,850 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 159 transitions, 368 flow [2024-10-11 17:18:15,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 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 17:18:15,851 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:15,851 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:18:15,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 17:18:15,851 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-11 17:18:15,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:15,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1872549858, now seen corresponding path program 1 times [2024-10-11 17:18:15,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:15,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453362406] [2024-10-11 17:18:15,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:15,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:15,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:15,989 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 17:18:15,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:15,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453362406] [2024-10-11 17:18:15,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453362406] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:18:15,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113556905] [2024-10-11 17:18:15,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:15,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:18:15,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:18:15,992 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 17:18:15,994 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 17:18:16,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:16,138 INFO L255 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 17:18:16,145 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:18:16,184 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 17:18:16,184 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:18:16,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [113556905] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:16,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:18:16,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-11 17:18:16,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628670722] [2024-10-11 17:18:16,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:16,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:18:16,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:16,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:18:16,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:18:16,222 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 189 [2024-10-11 17:18:16,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 159 transitions, 368 flow. Second operand has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 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 17:18:16,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:16,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 189 [2024-10-11 17:18:16,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:16,338 INFO L124 PetriNetUnfolderBase]: 92/701 cut-off events. [2024-10-11 17:18:16,339 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2024-10-11 17:18:16,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1057 conditions, 701 events. 92/701 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 3239 event pairs, 32 based on Foata normal form. 0/678 useless extension candidates. Maximal degree in co-relation 727. Up to 149 conditions per place. [2024-10-11 17:18:16,342 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 23 selfloop transitions, 2 changer transitions 0/163 dead transitions. [2024-10-11 17:18:16,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 163 transitions, 431 flow [2024-10-11 17:18:16,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:18:16,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:18:16,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 506 transitions. [2024-10-11 17:18:16,345 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.892416225749559 [2024-10-11 17:18:16,345 INFO L175 Difference]: Start difference. First operand has 162 places, 159 transitions, 368 flow. Second operand 3 states and 506 transitions. [2024-10-11 17:18:16,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 163 transitions, 431 flow [2024-10-11 17:18:16,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 163 transitions, 427 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:18:16,349 INFO L231 Difference]: Finished difference. Result has 161 places, 158 transitions, 366 flow [2024-10-11 17:18:16,349 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=366, PETRI_PLACES=161, PETRI_TRANSITIONS=158} [2024-10-11 17:18:16,350 INFO L277 CegarLoopForPetriNet]: 172 programPoint places, -11 predicate places. [2024-10-11 17:18:16,351 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 158 transitions, 366 flow [2024-10-11 17:18:16,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 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 17:18:16,352 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:16,352 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:18:16,370 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-11 17:18:16,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-11 17:18:16,557 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-11 17:18:16,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:16,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1801256274, now seen corresponding path program 1 times [2024-10-11 17:18:16,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:16,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319209506] [2024-10-11 17:18:16,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:16,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:16,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:16,693 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 17:18:16,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:16,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319209506] [2024-10-11 17:18:16,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319209506] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:18:16,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50524608] [2024-10-11 17:18:16,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:16,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:18:16,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:18:16,696 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 17:18:16,697 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 17:18:16,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:16,819 INFO L255 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 17:18:16,822 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:18:16,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 17:18:16,853 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:18:16,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50524608] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:16,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:18:16,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-11 17:18:16,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076092519] [2024-10-11 17:18:16,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:16,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:18:16,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:16,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:18:16,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:18:16,868 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 189 [2024-10-11 17:18:16,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 158 transitions, 366 flow. Second operand has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 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 17:18:16,869 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:16,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 189 [2024-10-11 17:18:16,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:16,961 INFO L124 PetriNetUnfolderBase]: 81/652 cut-off events. [2024-10-11 17:18:16,961 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2024-10-11 17:18:16,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 967 conditions, 652 events. 81/652 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2776 event pairs, 24 based on Foata normal form. 0/632 useless extension candidates. Maximal degree in co-relation 728. Up to 121 conditions per place. [2024-10-11 17:18:16,965 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 20 selfloop transitions, 2 changer transitions 0/162 dead transitions. [2024-10-11 17:18:16,965 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 162 transitions, 423 flow [2024-10-11 17:18:16,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:18:16,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:18:16,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 515 transitions. [2024-10-11 17:18:16,968 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.908289241622575 [2024-10-11 17:18:16,968 INFO L175 Difference]: Start difference. First operand has 161 places, 158 transitions, 366 flow. Second operand 3 states and 515 transitions. [2024-10-11 17:18:16,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 162 transitions, 423 flow [2024-10-11 17:18:16,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 162 transitions, 419 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:18:16,971 INFO L231 Difference]: Finished difference. Result has 160 places, 157 transitions, 364 flow [2024-10-11 17:18:16,973 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=364, PETRI_PLACES=160, PETRI_TRANSITIONS=157} [2024-10-11 17:18:16,973 INFO L277 CegarLoopForPetriNet]: 172 programPoint places, -12 predicate places. [2024-10-11 17:18:16,973 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 157 transitions, 364 flow [2024-10-11 17:18:16,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 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 17:18:16,974 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:18:16,974 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:18:16,994 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 17:18:17,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:18:17,176 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-10-11 17:18:17,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:18:17,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1049230548, now seen corresponding path program 1 times [2024-10-11 17:18:17,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:18:17,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086069564] [2024-10-11 17:18:17,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:17,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:18:17,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:17,346 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 17:18:17,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:18:17,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086069564] [2024-10-11 17:18:17,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086069564] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 17:18:17,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229941539] [2024-10-11 17:18:17,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:18:17,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:18:17,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:18:17,350 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 17:18:17,351 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 17:18:17,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:18:17,478 INFO L255 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 17:18:17,480 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 17:18:17,502 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 17:18:17,503 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 17:18:17,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229941539] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:18:17,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 17:18:17,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-11 17:18:17,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282480140] [2024-10-11 17:18:17,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:18:17,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:18:17,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:18:17,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:18:17,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:18:17,514 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 189 [2024-10-11 17:18:17,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 157 transitions, 364 flow. Second operand has 3 states, 3 states have (on average 169.66666666666666) internal successors, (509), 3 states have internal predecessors, (509), 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 17:18:17,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:18:17,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 189 [2024-10-11 17:18:17,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:18:17,580 INFO L124 PetriNetUnfolderBase]: 58/571 cut-off events. [2024-10-11 17:18:17,581 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-10-11 17:18:17,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 821 conditions, 571 events. 58/571 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2173 event pairs, 19 based on Foata normal form. 1/556 useless extension candidates. Maximal degree in co-relation 743. Up to 105 conditions per place. [2024-10-11 17:18:17,583 INFO L140 encePairwiseOnDemand]: 187/189 looper letters, 0 selfloop transitions, 0 changer transitions 156/156 dead transitions. [2024-10-11 17:18:17,583 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 156 transitions, 390 flow [2024-10-11 17:18:17,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:18:17,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 17:18:17,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 513 transitions. [2024-10-11 17:18:17,585 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9047619047619048 [2024-10-11 17:18:17,585 INFO L175 Difference]: Start difference. First operand has 160 places, 157 transitions, 364 flow. Second operand 3 states and 513 transitions. [2024-10-11 17:18:17,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 156 transitions, 390 flow [2024-10-11 17:18:17,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 156 transitions, 386 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:18:17,587 INFO L231 Difference]: Finished difference. Result has 159 places, 0 transitions, 0 flow [2024-10-11 17:18:17,587 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=159, PETRI_TRANSITIONS=0} [2024-10-11 17:18:17,588 INFO L277 CegarLoopForPetriNet]: 172 programPoint places, -13 predicate places. [2024-10-11 17:18:17,589 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 0 transitions, 0 flow [2024-10-11 17:18:17,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.66666666666666) internal successors, (509), 3 states have internal predecessors, (509), 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 17:18:17,591 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (27 of 28 remaining) [2024-10-11 17:18:17,592 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (26 of 28 remaining) [2024-10-11 17:18:17,592 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (25 of 28 remaining) [2024-10-11 17:18:17,592 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (24 of 28 remaining) [2024-10-11 17:18:17,592 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (23 of 28 remaining) [2024-10-11 17:18:17,593 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (22 of 28 remaining) [2024-10-11 17:18:17,593 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (21 of 28 remaining) [2024-10-11 17:18:17,593 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (20 of 28 remaining) [2024-10-11 17:18:17,593 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (19 of 28 remaining) [2024-10-11 17:18:17,593 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (18 of 28 remaining) [2024-10-11 17:18:17,593 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (17 of 28 remaining) [2024-10-11 17:18:17,594 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 28 remaining) [2024-10-11 17:18:17,594 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 28 remaining) [2024-10-11 17:18:17,594 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (14 of 28 remaining) [2024-10-11 17:18:17,594 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (13 of 28 remaining) [2024-10-11 17:18:17,594 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 28 remaining) [2024-10-11 17:18:17,594 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 28 remaining) [2024-10-11 17:18:17,594 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (10 of 28 remaining) [2024-10-11 17:18:17,595 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (9 of 28 remaining) [2024-10-11 17:18:17,595 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (8 of 28 remaining) [2024-10-11 17:18:17,595 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (7 of 28 remaining) [2024-10-11 17:18:17,595 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (6 of 28 remaining) [2024-10-11 17:18:17,595 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (5 of 28 remaining) [2024-10-11 17:18:17,595 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (4 of 28 remaining) [2024-10-11 17:18:17,595 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (3 of 28 remaining) [2024-10-11 17:18:17,596 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (2 of 28 remaining) [2024-10-11 17:18:17,596 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (1 of 28 remaining) [2024-10-11 17:18:17,596 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (0 of 28 remaining) [2024-10-11 17:18:17,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-11 17:18:17,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 17:18:17,801 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:18:17,808 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 17:18:17,808 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 17:18:17,816 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 05:18:17 BasicIcfg [2024-10-11 17:18:17,817 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 17:18:17,817 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 17:18:17,817 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 17:18:17,817 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 17:18:17,818 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:18:12" (3/4) ... [2024-10-11 17:18:17,819 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 17:18:17,822 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-11 17:18:17,822 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-11 17:18:17,828 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-10-11 17:18:17,828 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-11 17:18:17,829 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-11 17:18:17,829 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 17:18:17,912 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 17:18:17,913 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 17:18:17,913 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 17:18:17,913 INFO L158 Benchmark]: Toolchain (without parser) took 7084.36ms. Allocated memory was 157.3MB in the beginning and 234.9MB in the end (delta: 77.6MB). Free memory was 114.7MB in the beginning and 118.0MB in the end (delta: -3.3MB). Peak memory consumption was 73.0MB. Max. memory is 16.1GB. [2024-10-11 17:18:17,914 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 17:18:17,914 INFO L158 Benchmark]: CACSL2BoogieTranslator took 687.05ms. Allocated memory is still 157.3MB. Free memory was 114.7MB in the beginning and 85.3MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-10-11 17:18:17,914 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.67ms. Allocated memory is still 157.3MB. Free memory was 85.3MB in the beginning and 83.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 17:18:17,915 INFO L158 Benchmark]: Boogie Preprocessor took 45.30ms. Allocated memory is still 157.3MB. Free memory was 83.2MB in the beginning and 81.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 17:18:17,915 INFO L158 Benchmark]: RCFGBuilder took 574.15ms. Allocated memory is still 157.3MB. Free memory was 81.1MB in the beginning and 60.1MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-11 17:18:17,915 INFO L158 Benchmark]: TraceAbstraction took 5606.79ms. Allocated memory was 157.3MB in the beginning and 234.9MB in the end (delta: 77.6MB). Free memory was 59.3MB in the beginning and 122.2MB in the end (delta: -62.8MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2024-10-11 17:18:17,915 INFO L158 Benchmark]: Witness Printer took 95.85ms. Allocated memory is still 234.9MB. Free memory was 122.2MB in the beginning and 118.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 17:18:17,917 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 687.05ms. Allocated memory is still 157.3MB. Free memory was 114.7MB in the beginning and 85.3MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.67ms. Allocated memory is still 157.3MB. Free memory was 85.3MB in the beginning and 83.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.30ms. Allocated memory is still 157.3MB. Free memory was 83.2MB in the beginning and 81.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 574.15ms. Allocated memory is still 157.3MB. Free memory was 81.1MB in the beginning and 60.1MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 5606.79ms. Allocated memory was 157.3MB in the beginning and 234.9MB in the end (delta: 77.6MB). Free memory was 59.3MB in the beginning and 122.2MB in the end (delta: -62.8MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * Witness Printer took 95.85ms. Allocated memory is still 234.9MB. Free memory was 122.2MB in the beginning and 118.0MB 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: 880]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 882]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 882]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 902]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 894]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 896]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 902]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 896]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 903]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 897]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 897]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 908]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 909]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 917]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 918]: 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 5 procedures, 267 locations, 28 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: 5.5s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 399 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 162 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 652 IncrementalHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 46 mSDtfsCounter, 652 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 436 GetRequests, 414 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=506occurred in iteration=6, InterpolantAutomatonStates: 39, 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, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 1621 NumberOfCodeBlocks, 1621 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1605 ConstructedInterpolants, 0 QuantifiedInterpolants, 1911 SizeOfPredicates, 0 NumberOfNonLiveVariables, 878 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 16 InterpolantComputations, 13 PerfectInterpolantSequences, 5/8 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 15 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-11 17:18:17,946 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE