./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-race-challenges/per-thread-array-init.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-race-challenges/per-thread-array-init.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 16badef15fc63e9ddc5177a1b2c95333295e395a70b18e0490e8c8921933ac0e --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 07:04:45,459 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:04:45,532 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-09 07:04:45,539 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:04:45,540 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:04:45,573 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:04:45,574 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:04:45,575 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:04:45,576 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:04:45,577 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:04:45,577 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 07:04:45,578 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 07:04:45,578 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 07:04:45,578 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:04:45,580 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:04:45,581 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:04:45,581 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:04:45,581 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:04:45,582 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:04:45,582 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:04:45,582 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:04:45,586 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:04:45,587 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 07:04:45,587 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:04:45,587 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:04:45,587 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:04:45,588 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:04:45,588 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:04:45,588 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:04:45,588 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 07:04:45,589 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:04:45,589 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 07:04:45,589 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:04:45,589 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:04:45,590 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:04:45,590 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 07:04:45,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:04:45,593 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:04:45,593 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 07:04:45,593 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 07:04:45,594 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:04:45,594 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16badef15fc63e9ddc5177a1b2c95333295e395a70b18e0490e8c8921933ac0e [2024-11-09 07:04:45,828 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:04:45,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:04:45,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:04:45,871 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:04:45,872 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:04:45,873 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-race-challenges/per-thread-array-init.i [2024-11-09 07:04:47,403 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:04:47,660 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:04:47,661 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-array-init.i [2024-11-09 07:04:47,692 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16ef4de99/ae94a30223a54fbfb40c195e6912a4f8/FLAGa02796245 [2024-11-09 07:04:47,711 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16ef4de99/ae94a30223a54fbfb40c195e6912a4f8 [2024-11-09 07:04:47,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:04:47,717 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:04:47,720 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:04:47,721 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:04:47,728 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:04:47,729 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:04:47" (1/1) ... [2024-11-09 07:04:47,731 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a8adbab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:04:47, skipping insertion in model container [2024-11-09 07:04:47,731 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:04:47" (1/1) ... [2024-11-09 07:04:47,788 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:04:48,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:04:48,211 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:04:48,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:04:48,331 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:04:48,332 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:04:48 WrapperNode [2024-11-09 07:04:48,332 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:04:48,334 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:04:48,334 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:04:48,334 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:04:48,340 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:04:48" (1/1) ... [2024-11-09 07:04:48,364 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:04:48" (1/1) ... [2024-11-09 07:04:48,391 INFO L138 Inliner]: procedures = 261, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 69 [2024-11-09 07:04:48,392 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:04:48,393 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:04:48,393 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:04:48,393 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:04:48,402 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:04:48" (1/1) ... [2024-11-09 07:04:48,402 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:04:48" (1/1) ... [2024-11-09 07:04:48,406 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:04:48" (1/1) ... [2024-11-09 07:04:48,406 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:04:48" (1/1) ... [2024-11-09 07:04:48,414 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:04:48" (1/1) ... [2024-11-09 07:04:48,418 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:04:48" (1/1) ... [2024-11-09 07:04:48,420 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:04:48" (1/1) ... [2024-11-09 07:04:48,421 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:04:48" (1/1) ... [2024-11-09 07:04:48,423 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:04:48,424 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:04:48,424 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:04:48,424 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:04:48,428 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:04:48" (1/1) ... [2024-11-09 07:04:48,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 07:04:48,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:04:48,470 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 07:04:48,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 07:04:48,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 07:04:48,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 07:04:48,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 07:04:48,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 07:04:48,524 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-09 07:04:48,524 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-09 07:04:48,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:04:48,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:04:48,526 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 07:04:48,676 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:04:48,678 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:04:48,946 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 07:04:48,946 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:04:48,965 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:04:48,966 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 07:04:48,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:04:48 BoogieIcfgContainer [2024-11-09 07:04:48,967 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:04:48,969 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:04:48,970 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:04:48,973 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:04:48,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:04:47" (1/3) ... [2024-11-09 07:04:48,974 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21f01ce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:04:48, skipping insertion in model container [2024-11-09 07:04:48,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:04:48" (2/3) ... [2024-11-09 07:04:48,975 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21f01ce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:04:48, skipping insertion in model container [2024-11-09 07:04:48,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:04:48" (3/3) ... [2024-11-09 07:04:48,977 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-array-init.i [2024-11-09 07:04:48,995 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:04:48,996 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-09 07:04:48,996 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 07:04:49,068 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-09 07:04:49,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 90 transitions, 187 flow [2024-11-09 07:04:49,176 INFO L124 PetriNetUnfolderBase]: 6/131 cut-off events. [2024-11-09 07:04:49,177 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 07:04:49,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 131 events. 6/131 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 189 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 64. Up to 4 conditions per place. [2024-11-09 07:04:49,185 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 90 transitions, 187 flow [2024-11-09 07:04:49,193 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 90 transitions, 187 flow [2024-11-09 07:04:49,211 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:04:49,220 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;@3faabed9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:04:49,221 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-09 07:04:49,242 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:04:49,242 INFO L124 PetriNetUnfolderBase]: 3/43 cut-off events. [2024-11-09 07:04:49,243 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:04:49,243 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:04:49,244 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] [2024-11-09 07:04:49,244 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-09 07:04:49,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:04:49,251 INFO L85 PathProgramCache]: Analyzing trace with hash 2036736685, now seen corresponding path program 1 times [2024-11-09 07:04:49,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:04:49,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53341961] [2024-11-09 07:04:49,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:04:49,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:04:49,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:04:50,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:04:50,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:04:50,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53341961] [2024-11-09 07:04:50,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53341961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:04:50,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:04:50,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:04:50,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584638002] [2024-11-09 07:04:50,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:04:50,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:04:50,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:04:50,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:04:50,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:04:50,453 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 90 [2024-11-09 07:04:50,459 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 90 transitions, 187 flow. Second operand has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:04:50,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:04:50,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 90 [2024-11-09 07:04:50,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:04:50,743 INFO L124 PetriNetUnfolderBase]: 91/418 cut-off events. [2024-11-09 07:04:50,743 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-09 07:04:50,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 654 conditions, 418 events. 91/418 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2003 event pairs, 52 based on Foata normal form. 13/395 useless extension candidates. Maximal degree in co-relation 559. Up to 197 conditions per place. [2024-11-09 07:04:50,749 INFO L140 encePairwiseOnDemand]: 76/90 looper letters, 27 selfloop transitions, 22 changer transitions 1/108 dead transitions. [2024-11-09 07:04:50,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 108 transitions, 321 flow [2024-11-09 07:04:50,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:04:50,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:04:50,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 407 transitions. [2024-11-09 07:04:50,766 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7537037037037037 [2024-11-09 07:04:50,768 INFO L175 Difference]: Start difference. First operand has 89 places, 90 transitions, 187 flow. Second operand 6 states and 407 transitions. [2024-11-09 07:04:50,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 108 transitions, 321 flow [2024-11-09 07:04:50,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 108 transitions, 321 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 07:04:50,780 INFO L231 Difference]: Finished difference. Result has 99 places, 107 transitions, 329 flow [2024-11-09 07:04:50,782 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=329, PETRI_PLACES=99, PETRI_TRANSITIONS=107} [2024-11-09 07:04:50,789 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 10 predicate places. [2024-11-09 07:04:50,789 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 107 transitions, 329 flow [2024-11-09 07:04:50,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:04:50,790 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:04:50,790 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] [2024-11-09 07:04:50,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:04:50,790 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-09 07:04:50,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:04:50,791 INFO L85 PathProgramCache]: Analyzing trace with hash 460665484, now seen corresponding path program 1 times [2024-11-09 07:04:50,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:04:50,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719137497] [2024-11-09 07:04:50,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:04:50,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:04:50,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:04:50,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:04:50,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:04:50,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719137497] [2024-11-09 07:04:50,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719137497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:04:50,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:04:50,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:04:50,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732612444] [2024-11-09 07:04:50,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:04:50,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:04:50,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:04:50,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:04:50,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:04:51,048 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 90 [2024-11-09 07:04:51,049 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 107 transitions, 329 flow. Second operand has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:04:51,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:04:51,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 90 [2024-11-09 07:04:51,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:04:51,111 INFO L124 PetriNetUnfolderBase]: 40/253 cut-off events. [2024-11-09 07:04:51,111 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-11-09 07:04:51,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 253 events. 40/253 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 835 event pairs, 4 based on Foata normal form. 1/239 useless extension candidates. Maximal degree in co-relation 333. Up to 50 conditions per place. [2024-11-09 07:04:51,115 INFO L140 encePairwiseOnDemand]: 82/90 looper letters, 11 selfloop transitions, 2 changer transitions 5/112 dead transitions. [2024-11-09 07:04:51,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 112 transitions, 375 flow [2024-11-09 07:04:51,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:04:51,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:04:51,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 463 transitions. [2024-11-09 07:04:51,118 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8574074074074074 [2024-11-09 07:04:51,118 INFO L175 Difference]: Start difference. First operand has 99 places, 107 transitions, 329 flow. Second operand 6 states and 463 transitions. [2024-11-09 07:04:51,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 112 transitions, 375 flow [2024-11-09 07:04:51,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 112 transitions, 375 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 07:04:51,128 INFO L231 Difference]: Finished difference. Result has 107 places, 107 transitions, 347 flow [2024-11-09 07:04:51,128 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=347, PETRI_PLACES=107, PETRI_TRANSITIONS=107} [2024-11-09 07:04:51,129 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 18 predicate places. [2024-11-09 07:04:51,129 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 107 transitions, 347 flow [2024-11-09 07:04:51,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:04:51,130 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:04:51,130 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] [2024-11-09 07:04:51,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 07:04:51,131 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-09 07:04:51,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:04:51,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1788191437, now seen corresponding path program 1 times [2024-11-09 07:04:51,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:04:51,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731813182] [2024-11-09 07:04:51,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:04:51,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:04:51,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:04:51,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:04:51,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:04:51,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731813182] [2024-11-09 07:04:51,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731813182] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:04:51,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:04:51,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:04:51,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776066378] [2024-11-09 07:04:51,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:04:51,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:04:51,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:04:51,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:04:51,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:04:51,737 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 90 [2024-11-09 07:04:51,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 107 transitions, 347 flow. Second operand has 6 states, 6 states have (on average 61.166666666666664) internal successors, (367), 6 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:04:51,739 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:04:51,740 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 90 [2024-11-09 07:04:51,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:04:51,850 INFO L124 PetriNetUnfolderBase]: 109/469 cut-off events. [2024-11-09 07:04:51,851 INFO L125 PetriNetUnfolderBase]: For 99/102 co-relation queries the response was YES. [2024-11-09 07:04:51,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1003 conditions, 469 events. 109/469 cut-off events. For 99/102 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2282 event pairs, 36 based on Foata normal form. 0/437 useless extension candidates. Maximal degree in co-relation 886. Up to 225 conditions per place. [2024-11-09 07:04:51,860 INFO L140 encePairwiseOnDemand]: 79/90 looper letters, 46 selfloop transitions, 22 changer transitions 0/128 dead transitions. [2024-11-09 07:04:51,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 128 transitions, 557 flow [2024-11-09 07:04:51,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:04:51,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:04:51,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 404 transitions. [2024-11-09 07:04:51,866 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7481481481481481 [2024-11-09 07:04:51,867 INFO L175 Difference]: Start difference. First operand has 107 places, 107 transitions, 347 flow. Second operand 6 states and 404 transitions. [2024-11-09 07:04:51,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 128 transitions, 557 flow [2024-11-09 07:04:51,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 128 transitions, 543 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-09 07:04:51,875 INFO L231 Difference]: Finished difference. Result has 109 places, 128 transitions, 515 flow [2024-11-09 07:04:51,876 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=333, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=515, PETRI_PLACES=109, PETRI_TRANSITIONS=128} [2024-11-09 07:04:51,877 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 20 predicate places. [2024-11-09 07:04:51,878 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 128 transitions, 515 flow [2024-11-09 07:04:51,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 61.166666666666664) internal successors, (367), 6 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:04:51,888 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:04:51,888 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:04:51,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 07:04:51,889 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-09 07:04:51,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:04:51,890 INFO L85 PathProgramCache]: Analyzing trace with hash 628878030, now seen corresponding path program 1 times [2024-11-09 07:04:51,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:04:51,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547188093] [2024-11-09 07:04:51,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:04:51,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:04:51,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:04:52,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:04:52,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:04:52,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547188093] [2024-11-09 07:04:52,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547188093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:04:52,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:04:52,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:04:52,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033126996] [2024-11-09 07:04:52,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:04:52,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:04:52,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:04:52,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:04:52,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:04:52,402 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 90 [2024-11-09 07:04:52,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 128 transitions, 515 flow. Second operand has 6 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:04:52,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:04:52,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 90 [2024-11-09 07:04:52,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:04:52,605 INFO L124 PetriNetUnfolderBase]: 140/585 cut-off events. [2024-11-09 07:04:52,605 INFO L125 PetriNetUnfolderBase]: For 340/365 co-relation queries the response was YES. [2024-11-09 07:04:52,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1500 conditions, 585 events. 140/585 cut-off events. For 340/365 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3035 event pairs, 14 based on Foata normal form. 4/562 useless extension candidates. Maximal degree in co-relation 1382. Up to 232 conditions per place. [2024-11-09 07:04:52,610 INFO L140 encePairwiseOnDemand]: 76/90 looper letters, 46 selfloop transitions, 57 changer transitions 8/176 dead transitions. [2024-11-09 07:04:52,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 176 transitions, 963 flow [2024-11-09 07:04:52,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:04:52,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:04:52,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 474 transitions. [2024-11-09 07:04:52,612 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8777777777777778 [2024-11-09 07:04:52,612 INFO L175 Difference]: Start difference. First operand has 109 places, 128 transitions, 515 flow. Second operand 6 states and 474 transitions. [2024-11-09 07:04:52,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 176 transitions, 963 flow [2024-11-09 07:04:52,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 176 transitions, 925 flow, removed 19 selfloop flow, removed 0 redundant places. [2024-11-09 07:04:52,621 INFO L231 Difference]: Finished difference. Result has 119 places, 168 transitions, 981 flow [2024-11-09 07:04:52,623 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=483, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=981, PETRI_PLACES=119, PETRI_TRANSITIONS=168} [2024-11-09 07:04:52,624 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 30 predicate places. [2024-11-09 07:04:52,624 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 168 transitions, 981 flow [2024-11-09 07:04:52,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:04:52,626 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:04:52,626 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] [2024-11-09 07:04:52,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 07:04:52,627 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-09 07:04:52,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:04:52,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1921327265, now seen corresponding path program 1 times [2024-11-09 07:04:52,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:04:52,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841492683] [2024-11-09 07:04:52,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:04:52,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:04:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:04:52,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:04:52,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:04:52,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841492683] [2024-11-09 07:04:52,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841492683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:04:52,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:04:52,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:04:52,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941087632] [2024-11-09 07:04:52,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:04:52,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:04:52,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:04:52,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:04:52,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:04:53,131 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 90 [2024-11-09 07:04:53,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 168 transitions, 981 flow. Second operand has 6 states, 6 states have (on average 67.83333333333333) internal successors, (407), 6 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:04:53,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:04:53,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 90 [2024-11-09 07:04:53,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:04:53,211 INFO L124 PetriNetUnfolderBase]: 125/536 cut-off events. [2024-11-09 07:04:53,212 INFO L125 PetriNetUnfolderBase]: For 639/656 co-relation queries the response was YES. [2024-11-09 07:04:53,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1631 conditions, 536 events. 125/536 cut-off events. For 639/656 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2786 event pairs, 6 based on Foata normal form. 0/536 useless extension candidates. Maximal degree in co-relation 1501. Up to 135 conditions per place. [2024-11-09 07:04:53,216 INFO L140 encePairwiseOnDemand]: 84/90 looper letters, 55 selfloop transitions, 0 changer transitions 15/167 dead transitions. [2024-11-09 07:04:53,217 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 167 transitions, 1105 flow [2024-11-09 07:04:53,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:04:53,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:04:53,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 410 transitions. [2024-11-09 07:04:53,218 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7592592592592593 [2024-11-09 07:04:53,218 INFO L175 Difference]: Start difference. First operand has 119 places, 168 transitions, 981 flow. Second operand 6 states and 410 transitions. [2024-11-09 07:04:53,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 167 transitions, 1105 flow [2024-11-09 07:04:53,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 167 transitions, 1069 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-11-09 07:04:53,230 INFO L231 Difference]: Finished difference. Result has 115 places, 152 transitions, 908 flow [2024-11-09 07:04:53,230 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=943, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=908, PETRI_PLACES=115, PETRI_TRANSITIONS=152} [2024-11-09 07:04:53,231 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 26 predicate places. [2024-11-09 07:04:53,231 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 152 transitions, 908 flow [2024-11-09 07:04:53,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.83333333333333) internal successors, (407), 6 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:04:53,231 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:04:53,232 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:04:53,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 07:04:53,232 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-09 07:04:53,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:04:53,233 INFO L85 PathProgramCache]: Analyzing trace with hash 707737008, now seen corresponding path program 1 times [2024-11-09 07:04:53,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:04:53,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321996945] [2024-11-09 07:04:53,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:04:53,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:04:53,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:04:54,163 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:04:54,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:04:54,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321996945] [2024-11-09 07:04:54,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321996945] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:04:54,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578612073] [2024-11-09 07:04:54,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:04:54,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:04:54,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:04:54,168 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:04:54,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 07:04:54,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:04:54,269 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 07:04:54,276 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:04:54,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-09 07:04:54,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-09 07:04:54,584 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:04:54,584 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-09 07:04:54,646 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:04:54,647 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-09 07:04:54,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:04:54,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:04:54,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:04:54,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:04:54,727 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:04:54,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 60 [2024-11-09 07:04:54,739 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:04:54,739 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:04:54,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1578612073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:04:54,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:04:54,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-11-09 07:04:54,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982592933] [2024-11-09 07:04:54,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:04:54,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 07:04:54,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:04:54,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 07:04:54,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-11-09 07:04:55,217 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-11-09 07:04:55,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 152 transitions, 908 flow. Second operand has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:04:55,219 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:04:55,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-11-09 07:04:55,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:04:55,890 INFO L124 PetriNetUnfolderBase]: 256/858 cut-off events. [2024-11-09 07:04:55,890 INFO L125 PetriNetUnfolderBase]: For 1056/1071 co-relation queries the response was YES. [2024-11-09 07:04:55,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2941 conditions, 858 events. 256/858 cut-off events. For 1056/1071 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4920 event pairs, 12 based on Foata normal form. 9/863 useless extension candidates. Maximal degree in co-relation 2921. Up to 297 conditions per place. [2024-11-09 07:04:55,899 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 165 selfloop transitions, 64 changer transitions 0/269 dead transitions. [2024-11-09 07:04:55,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 269 transitions, 2226 flow [2024-11-09 07:04:55,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 07:04:55,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-09 07:04:55,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 929 transitions. [2024-11-09 07:04:55,902 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6881481481481482 [2024-11-09 07:04:55,902 INFO L175 Difference]: Start difference. First operand has 115 places, 152 transitions, 908 flow. Second operand 15 states and 929 transitions. [2024-11-09 07:04:55,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 269 transitions, 2226 flow [2024-11-09 07:04:55,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 269 transitions, 2224 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:04:55,917 INFO L231 Difference]: Finished difference. Result has 119 places, 198 transitions, 1533 flow [2024-11-09 07:04:55,918 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=906, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1533, PETRI_PLACES=119, PETRI_TRANSITIONS=198} [2024-11-09 07:04:55,918 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 30 predicate places. [2024-11-09 07:04:55,919 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 198 transitions, 1533 flow [2024-11-09 07:04:55,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:04:55,919 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:04:55,920 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:04:55,940 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 07:04:56,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-09 07:04:56,125 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-09 07:04:56,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:04:56,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1200885021, now seen corresponding path program 1 times [2024-11-09 07:04:56,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:04:56,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170877211] [2024-11-09 07:04:56,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:04:56,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:04:56,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:04:56,861 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:04:56,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:04:56,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170877211] [2024-11-09 07:04:56,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170877211] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:04:56,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946467673] [2024-11-09 07:04:56,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:04:56,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:04:56,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:04:56,864 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:04:56,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 07:04:56,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:04:56,970 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-09 07:04:56,973 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:04:57,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-09 07:04:57,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-09 07:04:57,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2024-11-09 07:04:57,210 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2024-11-09 07:04:57,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:04:57,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:04:57,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:04:57,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:04:57,451 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:04:57,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 47 [2024-11-09 07:04:57,462 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:04:57,463 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:04:57,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946467673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:04:57,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:04:57,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-11-09 07:04:57,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633184001] [2024-11-09 07:04:57,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:04:57,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 07:04:57,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:04:57,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 07:04:57,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2024-11-09 07:04:58,051 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 90 [2024-11-09 07:04:58,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 198 transitions, 1533 flow. Second operand has 12 states, 12 states have (on average 62.916666666666664) internal successors, (755), 12 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:04:58,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:04:58,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 90 [2024-11-09 07:04:58,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:04:58,585 INFO L124 PetriNetUnfolderBase]: 256/954 cut-off events. [2024-11-09 07:04:58,586 INFO L125 PetriNetUnfolderBase]: For 1830/1868 co-relation queries the response was YES. [2024-11-09 07:04:58,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3597 conditions, 954 events. 256/954 cut-off events. For 1830/1868 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 5998 event pairs, 16 based on Foata normal form. 7/960 useless extension candidates. Maximal degree in co-relation 3568. Up to 445 conditions per place. [2024-11-09 07:04:58,595 INFO L140 encePairwiseOnDemand]: 70/90 looper letters, 158 selfloop transitions, 43 changer transitions 0/254 dead transitions. [2024-11-09 07:04:58,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 254 transitions, 2355 flow [2024-11-09 07:04:58,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 07:04:58,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-09 07:04:58,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 986 transitions. [2024-11-09 07:04:58,599 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7303703703703703 [2024-11-09 07:04:58,599 INFO L175 Difference]: Start difference. First operand has 119 places, 198 transitions, 1533 flow. Second operand 15 states and 986 transitions. [2024-11-09 07:04:58,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 254 transitions, 2355 flow [2024-11-09 07:04:58,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 254 transitions, 2310 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-09 07:04:58,623 INFO L231 Difference]: Finished difference. Result has 140 places, 236 transitions, 2020 flow [2024-11-09 07:04:58,623 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=1516, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2020, PETRI_PLACES=140, PETRI_TRANSITIONS=236} [2024-11-09 07:04:58,624 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 51 predicate places. [2024-11-09 07:04:58,624 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 236 transitions, 2020 flow [2024-11-09 07:04:58,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 62.916666666666664) internal successors, (755), 12 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:04:58,625 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:04:58,625 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:04:58,642 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 07:04:58,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-09 07:04:58,826 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-09 07:04:58,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:04:58,826 INFO L85 PathProgramCache]: Analyzing trace with hash 35174206, now seen corresponding path program 2 times [2024-11-09 07:04:58,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:04:58,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316440470] [2024-11-09 07:04:58,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:04:58,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:04:58,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:04:59,718 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:04:59,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:04:59,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316440470] [2024-11-09 07:04:59,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316440470] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:04:59,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958291331] [2024-11-09 07:04:59,722 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 07:04:59,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:04:59,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:04:59,725 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:04:59,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 07:04:59,825 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 07:04:59,825 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:04:59,827 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-09 07:04:59,831 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:04:59,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-09 07:05:00,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-09 07:05:00,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-11-09 07:05:00,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-11-09 07:05:00,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:00,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:00,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:00,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:00,230 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:05:00,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 60 [2024-11-09 07:05:00,246 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:05:00,247 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:05:00,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958291331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:05:00,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:05:00,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-11-09 07:05:00,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332318985] [2024-11-09 07:05:00,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:05:00,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 07:05:00,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:05:00,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 07:05:00,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2024-11-09 07:05:00,680 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-11-09 07:05:00,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 236 transitions, 2020 flow. Second operand has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:05:00,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:05:00,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-11-09 07:05:00,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:05:01,231 INFO L124 PetriNetUnfolderBase]: 408/1477 cut-off events. [2024-11-09 07:05:01,231 INFO L125 PetriNetUnfolderBase]: For 4016/4054 co-relation queries the response was YES. [2024-11-09 07:05:01,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6153 conditions, 1477 events. 408/1477 cut-off events. For 4016/4054 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 10677 event pairs, 30 based on Foata normal form. 11/1482 useless extension candidates. Maximal degree in co-relation 6114. Up to 497 conditions per place. [2024-11-09 07:05:01,253 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 267 selfloop transitions, 81 changer transitions 0/391 dead transitions. [2024-11-09 07:05:01,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 391 transitions, 4244 flow [2024-11-09 07:05:01,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 07:05:01,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-09 07:05:01,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 799 transitions. [2024-11-09 07:05:01,256 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6829059829059829 [2024-11-09 07:05:01,256 INFO L175 Difference]: Start difference. First operand has 140 places, 236 transitions, 2020 flow. Second operand 13 states and 799 transitions. [2024-11-09 07:05:01,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 391 transitions, 4244 flow [2024-11-09 07:05:01,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 391 transitions, 4208 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-11-09 07:05:01,316 INFO L231 Difference]: Finished difference. Result has 161 places, 285 transitions, 2906 flow [2024-11-09 07:05:01,317 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=1998, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2906, PETRI_PLACES=161, PETRI_TRANSITIONS=285} [2024-11-09 07:05:01,318 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 72 predicate places. [2024-11-09 07:05:01,319 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 285 transitions, 2906 flow [2024-11-09 07:05:01,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:05:01,320 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:05:01,320 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:05:01,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 07:05:01,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:05:01,522 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-09 07:05:01,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:05:01,522 INFO L85 PathProgramCache]: Analyzing trace with hash 808741728, now seen corresponding path program 3 times [2024-11-09 07:05:01,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:05:01,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321010208] [2024-11-09 07:05:01,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:01,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:05:01,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:05:02,321 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:05:02,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:05:02,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321010208] [2024-11-09 07:05:02,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321010208] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:05:02,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483417623] [2024-11-09 07:05:02,323 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:05:02,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:05:02,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:05:02,325 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:05:02,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 07:05:02,431 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 07:05:02,431 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:05:02,433 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-09 07:05:02,438 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:05:02,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-09 07:05:02,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-09 07:05:02,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-11-09 07:05:02,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-11-09 07:05:02,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:02,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:02,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:02,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:02,867 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:05:02,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 60 [2024-11-09 07:05:02,884 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:05:02,884 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:05:02,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483417623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:05:02,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:05:02,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-11-09 07:05:02,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488042960] [2024-11-09 07:05:02,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:05:02,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 07:05:02,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:05:02,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 07:05:02,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2024-11-09 07:05:03,288 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-11-09 07:05:03,289 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 285 transitions, 2906 flow. Second operand has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:05:03,289 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:05:03,289 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-11-09 07:05:03,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:05:04,116 INFO L124 PetriNetUnfolderBase]: 555/1991 cut-off events. [2024-11-09 07:05:04,116 INFO L125 PetriNetUnfolderBase]: For 7089/7151 co-relation queries the response was YES. [2024-11-09 07:05:04,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8956 conditions, 1991 events. 555/1991 cut-off events. For 7089/7151 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 15727 event pairs, 35 based on Foata normal form. 12/1995 useless extension candidates. Maximal degree in co-relation 8908. Up to 788 conditions per place. [2024-11-09 07:05:04,142 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 336 selfloop transitions, 87 changer transitions 0/466 dead transitions. [2024-11-09 07:05:04,142 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 466 transitions, 5653 flow [2024-11-09 07:05:04,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 07:05:04,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-09 07:05:04,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 865 transitions. [2024-11-09 07:05:04,145 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6865079365079365 [2024-11-09 07:05:04,145 INFO L175 Difference]: Start difference. First operand has 161 places, 285 transitions, 2906 flow. Second operand 14 states and 865 transitions. [2024-11-09 07:05:04,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 466 transitions, 5653 flow [2024-11-09 07:05:04,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 466 transitions, 5590 flow, removed 26 selfloop flow, removed 2 redundant places. [2024-11-09 07:05:04,231 INFO L231 Difference]: Finished difference. Result has 182 places, 338 transitions, 3947 flow [2024-11-09 07:05:04,232 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=2854, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3947, PETRI_PLACES=182, PETRI_TRANSITIONS=338} [2024-11-09 07:05:04,232 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 93 predicate places. [2024-11-09 07:05:04,233 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 338 transitions, 3947 flow [2024-11-09 07:05:04,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:05:04,233 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:05:04,234 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:05:04,252 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 07:05:04,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:05:04,438 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-09 07:05:04,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:05:04,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1876887687, now seen corresponding path program 2 times [2024-11-09 07:05:04,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:05:04,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864050337] [2024-11-09 07:05:04,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:04,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:05:04,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:05:05,103 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:05:05,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:05:05,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864050337] [2024-11-09 07:05:05,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864050337] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:05:05,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758551657] [2024-11-09 07:05:05,104 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 07:05:05,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:05:05,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:05:05,106 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:05:05,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 07:05:05,211 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 07:05:05,211 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:05:05,213 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-09 07:05:05,215 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:05:05,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-09 07:05:05,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-09 07:05:05,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2024-11-09 07:05:05,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2024-11-09 07:05:05,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:05,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:05,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:05,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:05,609 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:05:05,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 47 [2024-11-09 07:05:05,617 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:05:05,618 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:05:05,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [758551657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:05:05,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:05:05,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-11-09 07:05:05,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476101665] [2024-11-09 07:05:05,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:05:05,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 07:05:05,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:05:05,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 07:05:05,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2024-11-09 07:05:06,108 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 90 [2024-11-09 07:05:06,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 338 transitions, 3947 flow. Second operand has 12 states, 12 states have (on average 62.916666666666664) internal successors, (755), 12 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:05:06,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:05:06,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 90 [2024-11-09 07:05:06,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:05:07,107 INFO L124 PetriNetUnfolderBase]: 596/2305 cut-off events. [2024-11-09 07:05:07,107 INFO L125 PetriNetUnfolderBase]: For 10036/10164 co-relation queries the response was YES. [2024-11-09 07:05:07,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10686 conditions, 2305 events. 596/2305 cut-off events. For 10036/10164 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 19556 event pairs, 43 based on Foata normal form. 27/2329 useless extension candidates. Maximal degree in co-relation 10627. Up to 1005 conditions per place. [2024-11-09 07:05:07,134 INFO L140 encePairwiseOnDemand]: 70/90 looper letters, 260 selfloop transitions, 100 changer transitions 0/421 dead transitions. [2024-11-09 07:05:07,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 421 transitions, 5629 flow [2024-11-09 07:05:07,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-09 07:05:07,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-09 07:05:07,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1377 transitions. [2024-11-09 07:05:07,140 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7285714285714285 [2024-11-09 07:05:07,140 INFO L175 Difference]: Start difference. First operand has 182 places, 338 transitions, 3947 flow. Second operand 21 states and 1377 transitions. [2024-11-09 07:05:07,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 421 transitions, 5629 flow [2024-11-09 07:05:07,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 421 transitions, 5502 flow, removed 61 selfloop flow, removed 2 redundant places. [2024-11-09 07:05:07,258 INFO L231 Difference]: Finished difference. Result has 205 places, 377 transitions, 4683 flow [2024-11-09 07:05:07,259 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=3824, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=4683, PETRI_PLACES=205, PETRI_TRANSITIONS=377} [2024-11-09 07:05:07,260 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 116 predicate places. [2024-11-09 07:05:07,260 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 377 transitions, 4683 flow [2024-11-09 07:05:07,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 62.916666666666664) internal successors, (755), 12 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:05:07,261 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:05:07,261 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:05:07,280 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 07:05:07,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 07:05:07,466 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-09 07:05:07,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:05:07,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1204398042, now seen corresponding path program 4 times [2024-11-09 07:05:07,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:05:07,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928248226] [2024-11-09 07:05:07,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:07,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:05:07,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:05:08,074 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:05:08,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:05:08,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928248226] [2024-11-09 07:05:08,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928248226] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:05:08,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743335161] [2024-11-09 07:05:08,075 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 07:05:08,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:05:08,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:05:08,077 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:05:08,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 07:05:08,172 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 07:05:08,172 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:05:08,174 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-09 07:05:08,180 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:05:08,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-09 07:05:08,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-09 07:05:08,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-11-09 07:05:08,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-11-09 07:05:08,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:08,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:08,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:08,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:08,540 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:05:08,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 60 [2024-11-09 07:05:08,550 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:05:08,550 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:05:08,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [743335161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:05:08,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:05:08,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-11-09 07:05:08,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646876148] [2024-11-09 07:05:08,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:05:08,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 07:05:08,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:05:08,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 07:05:08,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2024-11-09 07:05:09,011 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-11-09 07:05:09,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 377 transitions, 4683 flow. Second operand has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:05:09,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:05:09,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-11-09 07:05:09,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:05:10,079 INFO L124 PetriNetUnfolderBase]: 878/3316 cut-off events. [2024-11-09 07:05:10,079 INFO L125 PetriNetUnfolderBase]: For 15240/15342 co-relation queries the response was YES. [2024-11-09 07:05:10,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16135 conditions, 3316 events. 878/3316 cut-off events. For 15240/15342 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 30830 event pairs, 88 based on Foata normal form. 17/3318 useless extension candidates. Maximal degree in co-relation 16072. Up to 768 conditions per place. [2024-11-09 07:05:10,131 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 486 selfloop transitions, 127 changer transitions 0/659 dead transitions. [2024-11-09 07:05:10,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 659 transitions, 9268 flow [2024-11-09 07:05:10,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 07:05:10,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-09 07:05:10,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1057 transitions. [2024-11-09 07:05:10,136 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6908496732026144 [2024-11-09 07:05:10,137 INFO L175 Difference]: Start difference. First operand has 205 places, 377 transitions, 4683 flow. Second operand 17 states and 1057 transitions. [2024-11-09 07:05:10,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 659 transitions, 9268 flow [2024-11-09 07:05:10,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 659 transitions, 9160 flow, removed 23 selfloop flow, removed 7 redundant places. [2024-11-09 07:05:10,357 INFO L231 Difference]: Finished difference. Result has 222 places, 435 transitions, 6015 flow [2024-11-09 07:05:10,357 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=4614, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=6015, PETRI_PLACES=222, PETRI_TRANSITIONS=435} [2024-11-09 07:05:10,358 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 133 predicate places. [2024-11-09 07:05:10,358 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 435 transitions, 6015 flow [2024-11-09 07:05:10,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:05:10,358 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:05:10,358 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:05:10,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-09 07:05:10,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:05:10,559 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-09 07:05:10,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:05:10,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1681440684, now seen corresponding path program 5 times [2024-11-09 07:05:10,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:05:10,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319890481] [2024-11-09 07:05:10,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:10,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:05:10,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:05:11,175 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:05:11,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:05:11,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319890481] [2024-11-09 07:05:11,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319890481] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:05:11,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618661538] [2024-11-09 07:05:11,176 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-09 07:05:11,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:05:11,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:05:11,180 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:05:11,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 07:05:11,286 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 07:05:11,286 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:05:11,287 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-09 07:05:11,289 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:05:11,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-09 07:05:11,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-09 07:05:11,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-11-09 07:05:11,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-11-09 07:05:11,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:11,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:11,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:11,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:11,632 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:05:11,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 60 [2024-11-09 07:05:11,640 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:05:11,641 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:05:11,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1618661538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:05:11,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:05:11,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-11-09 07:05:11,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425176975] [2024-11-09 07:05:11,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:05:11,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 07:05:11,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:05:11,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 07:05:11,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2024-11-09 07:05:12,041 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-11-09 07:05:12,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 435 transitions, 6015 flow. Second operand has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:05:12,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:05:12,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-11-09 07:05:12,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:05:13,393 INFO L124 PetriNetUnfolderBase]: 1063/3932 cut-off events. [2024-11-09 07:05:13,394 INFO L125 PetriNetUnfolderBase]: For 21592/21715 co-relation queries the response was YES. [2024-11-09 07:05:13,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20012 conditions, 3932 events. 1063/3932 cut-off events. For 21592/21715 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 37876 event pairs, 81 based on Foata normal form. 18/3935 useless extension candidates. Maximal degree in co-relation 19941. Up to 1457 conditions per place. [2024-11-09 07:05:13,450 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 536 selfloop transitions, 134 changer transitions 0/716 dead transitions. [2024-11-09 07:05:13,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 716 transitions, 10691 flow [2024-11-09 07:05:13,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 07:05:13,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-09 07:05:13,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1006 transitions. [2024-11-09 07:05:13,453 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6986111111111111 [2024-11-09 07:05:13,453 INFO L175 Difference]: Start difference. First operand has 222 places, 435 transitions, 6015 flow. Second operand 16 states and 1006 transitions. [2024-11-09 07:05:13,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 716 transitions, 10691 flow [2024-11-09 07:05:13,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 716 transitions, 10485 flow, removed 96 selfloop flow, removed 2 redundant places. [2024-11-09 07:05:13,668 INFO L231 Difference]: Finished difference. Result has 244 places, 485 transitions, 7210 flow [2024-11-09 07:05:13,668 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=5811, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=7210, PETRI_PLACES=244, PETRI_TRANSITIONS=485} [2024-11-09 07:05:13,669 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 155 predicate places. [2024-11-09 07:05:13,669 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 485 transitions, 7210 flow [2024-11-09 07:05:13,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:05:13,670 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:05:13,670 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:05:13,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-09 07:05:13,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:05:13,871 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-09 07:05:13,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:05:13,871 INFO L85 PathProgramCache]: Analyzing trace with hash -208675799, now seen corresponding path program 3 times [2024-11-09 07:05:13,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:05:13,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145428364] [2024-11-09 07:05:13,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:13,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:05:13,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:05:14,397 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:05:14,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:05:14,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145428364] [2024-11-09 07:05:14,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145428364] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:05:14,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196960361] [2024-11-09 07:05:14,397 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:05:14,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:05:14,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:05:14,399 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:05:14,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 07:05:14,490 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 07:05:14,490 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:05:14,492 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-09 07:05:14,494 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:05:14,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-09 07:05:14,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-09 07:05:14,636 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2024-11-09 07:05:14,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2024-11-09 07:05:14,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:14,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:14,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:14,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:14,819 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:05:14,819 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 47 [2024-11-09 07:05:14,825 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:05:14,825 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:05:14,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196960361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:05:14,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:05:14,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-11-09 07:05:14,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716218967] [2024-11-09 07:05:14,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:05:14,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 07:05:14,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:05:14,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 07:05:14,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2024-11-09 07:05:15,262 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 90 [2024-11-09 07:05:15,262 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 485 transitions, 7210 flow. Second operand has 12 states, 12 states have (on average 62.916666666666664) internal successors, (755), 12 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:05:15,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:05:15,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 90 [2024-11-09 07:05:15,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:05:16,537 INFO L124 PetriNetUnfolderBase]: 1129/4377 cut-off events. [2024-11-09 07:05:16,537 INFO L125 PetriNetUnfolderBase]: For 28552/28850 co-relation queries the response was YES. [2024-11-09 07:05:16,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22870 conditions, 4377 events. 1129/4377 cut-off events. For 28552/28850 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 44078 event pairs, 92 based on Foata normal form. 62/4426 useless extension candidates. Maximal degree in co-relation 22790. Up to 1905 conditions per place. [2024-11-09 07:05:16,700 INFO L140 encePairwiseOnDemand]: 70/90 looper letters, 368 selfloop transitions, 191 changer transitions 0/635 dead transitions. [2024-11-09 07:05:16,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 635 transitions, 10411 flow [2024-11-09 07:05:16,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-09 07:05:16,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-09 07:05:16,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1514 transitions. [2024-11-09 07:05:16,704 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7314009661835749 [2024-11-09 07:05:16,704 INFO L175 Difference]: Start difference. First operand has 244 places, 485 transitions, 7210 flow. Second operand 23 states and 1514 transitions. [2024-11-09 07:05:16,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 635 transitions, 10411 flow [2024-11-09 07:05:17,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 635 transitions, 10121 flow, removed 125 selfloop flow, removed 3 redundant places. [2024-11-09 07:05:17,179 INFO L231 Difference]: Finished difference. Result has 275 places, 573 transitions, 9070 flow [2024-11-09 07:05:17,179 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=6938, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=485, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=121, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=9070, PETRI_PLACES=275, PETRI_TRANSITIONS=573} [2024-11-09 07:05:17,180 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 186 predicate places. [2024-11-09 07:05:17,180 INFO L471 AbstractCegarLoop]: Abstraction has has 275 places, 573 transitions, 9070 flow [2024-11-09 07:05:17,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 62.916666666666664) internal successors, (755), 12 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:05:17,181 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:05:17,181 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:05:17,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-09 07:05:17,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-09 07:05:17,382 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-09 07:05:17,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:05:17,382 INFO L85 PathProgramCache]: Analyzing trace with hash 361098670, now seen corresponding path program 6 times [2024-11-09 07:05:17,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:05:17,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363782842] [2024-11-09 07:05:17,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:17,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:05:17,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:05:17,950 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:05:17,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:05:17,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363782842] [2024-11-09 07:05:17,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363782842] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:05:17,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399697097] [2024-11-09 07:05:17,951 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-09 07:05:17,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:05:17,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:05:17,952 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:05:17,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 07:05:18,058 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-09 07:05:18,058 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:05:18,060 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-09 07:05:18,063 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:05:18,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-09 07:05:18,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-09 07:05:18,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-11-09 07:05:18,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-11-09 07:05:18,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:18,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:18,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:18,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:18,379 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:05:18,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 60 [2024-11-09 07:05:18,387 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:05:18,388 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:05:18,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399697097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:05:18,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:05:18,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-11-09 07:05:18,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169142023] [2024-11-09 07:05:18,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:05:18,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 07:05:18,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:05:18,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 07:05:18,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2024-11-09 07:05:18,920 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-11-09 07:05:18,921 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 573 transitions, 9070 flow. Second operand has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:05:18,921 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:05:18,921 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-11-09 07:05:18,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:05:20,092 INFO L124 PetriNetUnfolderBase]: 1182/4554 cut-off events. [2024-11-09 07:05:20,092 INFO L125 PetriNetUnfolderBase]: For 33273/33392 co-relation queries the response was YES. [2024-11-09 07:05:20,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25054 conditions, 4554 events. 1182/4554 cut-off events. For 33273/33392 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 46016 event pairs, 114 based on Foata normal form. 22/4561 useless extension candidates. Maximal degree in co-relation 24963. Up to 1131 conditions per place. [2024-11-09 07:05:20,157 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 594 selfloop transitions, 169 changer transitions 0/821 dead transitions. [2024-11-09 07:05:20,157 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 821 transitions, 13770 flow [2024-11-09 07:05:20,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 07:05:20,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-09 07:05:20,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 941 transitions. [2024-11-09 07:05:20,159 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.697037037037037 [2024-11-09 07:05:20,160 INFO L175 Difference]: Start difference. First operand has 275 places, 573 transitions, 9070 flow. Second operand 15 states and 941 transitions. [2024-11-09 07:05:20,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 821 transitions, 13770 flow [2024-11-09 07:05:20,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 821 transitions, 13690 flow, removed 26 selfloop flow, removed 4 redundant places. [2024-11-09 07:05:20,841 INFO L231 Difference]: Finished difference. Result has 292 places, 610 transitions, 10293 flow [2024-11-09 07:05:20,842 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=8993, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=573, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=10293, PETRI_PLACES=292, PETRI_TRANSITIONS=610} [2024-11-09 07:05:20,842 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 203 predicate places. [2024-11-09 07:05:20,842 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 610 transitions, 10293 flow [2024-11-09 07:05:20,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:05:20,843 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:05:20,843 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:05:20,856 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-09 07:05:21,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-09 07:05:21,044 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-09 07:05:21,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:05:21,044 INFO L85 PathProgramCache]: Analyzing trace with hash 300743488, now seen corresponding path program 7 times [2024-11-09 07:05:21,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:05:21,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275961194] [2024-11-09 07:05:21,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:21,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:05:21,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:05:21,820 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:05:21,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:05:21,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275961194] [2024-11-09 07:05:21,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275961194] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:05:21,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395810766] [2024-11-09 07:05:21,822 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 07:05:21,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:05:21,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:05:21,824 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:05:21,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 07:05:21,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:05:21,925 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 07:05:21,927 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:05:21,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-09 07:05:22,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-09 07:05:22,070 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:05:22,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-09 07:05:22,114 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:05:22,114 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-09 07:05:22,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:22,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:22,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:22,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:22,221 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:05:22,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 60 [2024-11-09 07:05:22,228 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:05:22,228 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:05:22,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1395810766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:05:22,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:05:22,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-11-09 07:05:22,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535393973] [2024-11-09 07:05:22,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:05:22,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 07:05:22,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:05:22,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 07:05:22,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2024-11-09 07:05:22,591 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-11-09 07:05:22,592 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 610 transitions, 10293 flow. Second operand has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:05:22,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:05:22,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-11-09 07:05:22,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:05:24,095 INFO L124 PetriNetUnfolderBase]: 1193/4585 cut-off events. [2024-11-09 07:05:24,095 INFO L125 PetriNetUnfolderBase]: For 39150/39279 co-relation queries the response was YES. [2024-11-09 07:05:24,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26218 conditions, 4585 events. 1193/4585 cut-off events. For 39150/39279 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 46442 event pairs, 99 based on Foata normal form. 16/4590 useless extension candidates. Maximal degree in co-relation 26119. Up to 1721 conditions per place. [2024-11-09 07:05:24,157 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 518 selfloop transitions, 174 changer transitions 0/750 dead transitions. [2024-11-09 07:05:24,157 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 750 transitions, 13515 flow [2024-11-09 07:05:24,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 07:05:24,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-09 07:05:24,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 881 transitions. [2024-11-09 07:05:24,159 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6992063492063492 [2024-11-09 07:05:24,159 INFO L175 Difference]: Start difference. First operand has 292 places, 610 transitions, 10293 flow. Second operand 14 states and 881 transitions. [2024-11-09 07:05:24,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 750 transitions, 13515 flow [2024-11-09 07:05:24,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 750 transitions, 12984 flow, removed 159 selfloop flow, removed 7 redundant places. [2024-11-09 07:05:24,747 INFO L231 Difference]: Finished difference. Result has 304 places, 638 transitions, 10753 flow [2024-11-09 07:05:24,748 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=9776, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=610, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=10753, PETRI_PLACES=304, PETRI_TRANSITIONS=638} [2024-11-09 07:05:24,749 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 215 predicate places. [2024-11-09 07:05:24,749 INFO L471 AbstractCegarLoop]: Abstraction has has 304 places, 638 transitions, 10753 flow [2024-11-09 07:05:24,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:05:24,750 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:05:24,750 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:05:24,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-09 07:05:24,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-09 07:05:24,951 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-09 07:05:24,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:05:24,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1447400219, now seen corresponding path program 4 times [2024-11-09 07:05:24,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:05:24,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855875524] [2024-11-09 07:05:24,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:24,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:05:24,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:05:25,492 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:05:25,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:05:25,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855875524] [2024-11-09 07:05:25,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855875524] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:05:25,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135017647] [2024-11-09 07:05:25,493 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 07:05:25,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:05:25,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:05:25,495 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:05:25,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 07:05:25,603 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 07:05:25,604 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:05:25,610 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-09 07:05:25,612 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:05:25,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-09 07:05:25,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-09 07:05:25,791 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2024-11-09 07:05:25,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2024-11-09 07:05:25,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:25,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:25,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:25,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:25,933 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:05:25,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 47 [2024-11-09 07:05:25,940 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:05:25,940 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:05:25,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135017647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:05:25,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:05:25,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-11-09 07:05:25,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239217068] [2024-11-09 07:05:25,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:05:25,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 07:05:25,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:05:25,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 07:05:25,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2024-11-09 07:05:26,322 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 90 [2024-11-09 07:05:26,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 638 transitions, 10753 flow. Second operand has 12 states, 12 states have (on average 62.916666666666664) internal successors, (755), 12 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:05:26,322 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:05:26,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 90 [2024-11-09 07:05:26,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:05:27,893 INFO L124 PetriNetUnfolderBase]: 1313/5136 cut-off events. [2024-11-09 07:05:27,893 INFO L125 PetriNetUnfolderBase]: For 45174/45544 co-relation queries the response was YES. [2024-11-09 07:05:27,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29574 conditions, 5136 events. 1313/5136 cut-off events. For 45174/45544 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 53660 event pairs, 96 based on Foata normal form. 90/5215 useless extension candidates. Maximal degree in co-relation 29469. Up to 1975 conditions per place. [2024-11-09 07:05:27,955 INFO L140 encePairwiseOnDemand]: 70/90 looper letters, 465 selfloop transitions, 267 changer transitions 0/816 dead transitions. [2024-11-09 07:05:27,955 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 816 transitions, 15015 flow [2024-11-09 07:05:27,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-09 07:05:27,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-09 07:05:27,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1528 transitions. [2024-11-09 07:05:27,958 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7381642512077294 [2024-11-09 07:05:27,958 INFO L175 Difference]: Start difference. First operand has 304 places, 638 transitions, 10753 flow. Second operand 23 states and 1528 transitions. [2024-11-09 07:05:27,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 816 transitions, 15015 flow [2024-11-09 07:05:28,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 816 transitions, 14712 flow, removed 26 selfloop flow, removed 7 redundant places. [2024-11-09 07:05:28,616 INFO L231 Difference]: Finished difference. Result has 329 places, 723 transitions, 12979 flow [2024-11-09 07:05:28,617 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=10494, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=638, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=198, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=12979, PETRI_PLACES=329, PETRI_TRANSITIONS=723} [2024-11-09 07:05:28,617 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 240 predicate places. [2024-11-09 07:05:28,618 INFO L471 AbstractCegarLoop]: Abstraction has has 329 places, 723 transitions, 12979 flow [2024-11-09 07:05:28,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 62.916666666666664) internal successors, (755), 12 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:05:28,618 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:05:28,618 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:05:28,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-09 07:05:28,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-09 07:05:28,819 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-09 07:05:28,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:05:28,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1274136676, now seen corresponding path program 8 times [2024-11-09 07:05:28,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:05:28,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850519207] [2024-11-09 07:05:28,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:28,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:05:28,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:05:29,374 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:05:29,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:05:29,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850519207] [2024-11-09 07:05:29,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850519207] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:05:29,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501092800] [2024-11-09 07:05:29,375 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 07:05:29,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:05:29,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:05:29,378 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:05:29,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 07:05:29,496 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 07:05:29,496 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:05:29,501 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-09 07:05:29,504 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:05:29,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-09 07:05:29,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-09 07:05:29,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-11-09 07:05:29,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-11-09 07:05:29,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:29,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:29,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:29,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:29,780 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:05:29,781 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 59 treesize of output 67 [2024-11-09 07:05:29,856 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:05:29,857 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:05:29,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501092800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:05:29,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:05:29,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 22 [2024-11-09 07:05:29,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271010465] [2024-11-09 07:05:29,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:05:29,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 07:05:29,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:05:29,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 07:05:29,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2024-11-09 07:05:30,207 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 90 [2024-11-09 07:05:30,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 723 transitions, 12979 flow. Second operand has 12 states, 12 states have (on average 56.25) internal successors, (675), 12 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:05:30,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:05:30,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 90 [2024-11-09 07:05:30,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:05:31,797 INFO L124 PetriNetUnfolderBase]: 1446/5469 cut-off events. [2024-11-09 07:05:31,798 INFO L125 PetriNetUnfolderBase]: For 55606/55749 co-relation queries the response was YES. [2024-11-09 07:05:31,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33505 conditions, 5469 events. 1446/5469 cut-off events. For 55606/55749 co-relation queries the response was YES. Maximal size of possible extension queue 295. Compared 57241 event pairs, 163 based on Foata normal form. 16/5463 useless extension candidates. Maximal degree in co-relation 33390. Up to 1476 conditions per place. [2024-11-09 07:05:31,876 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 622 selfloop transitions, 227 changer transitions 0/887 dead transitions. [2024-11-09 07:05:31,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 887 transitions, 17176 flow [2024-11-09 07:05:31,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 07:05:31,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-09 07:05:31,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 808 transitions. [2024-11-09 07:05:31,878 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6905982905982906 [2024-11-09 07:05:31,878 INFO L175 Difference]: Start difference. First operand has 329 places, 723 transitions, 12979 flow. Second operand 13 states and 808 transitions. [2024-11-09 07:05:31,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 887 transitions, 17176 flow [2024-11-09 07:05:32,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 887 transitions, 17062 flow, removed 47 selfloop flow, removed 3 redundant places. [2024-11-09 07:05:32,747 INFO L231 Difference]: Finished difference. Result has 344 places, 753 transitions, 14242 flow [2024-11-09 07:05:32,748 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=12866, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=723, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=198, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=500, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=14242, PETRI_PLACES=344, PETRI_TRANSITIONS=753} [2024-11-09 07:05:32,748 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 255 predicate places. [2024-11-09 07:05:32,748 INFO L471 AbstractCegarLoop]: Abstraction has has 344 places, 753 transitions, 14242 flow [2024-11-09 07:05:32,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 56.25) internal successors, (675), 12 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:05:32,749 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:05:32,749 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:05:32,765 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-09 07:05:32,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-09 07:05:32,950 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-09 07:05:32,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:05:32,950 INFO L85 PathProgramCache]: Analyzing trace with hash -27766914, now seen corresponding path program 9 times [2024-11-09 07:05:32,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:05:32,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989590104] [2024-11-09 07:05:32,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:32,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:05:32,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:05:33,661 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:05:33,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:05:33,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989590104] [2024-11-09 07:05:33,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989590104] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:05:33,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728266258] [2024-11-09 07:05:33,662 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:05:33,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:05:33,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:05:33,664 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:05:33,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 07:05:33,787 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 07:05:33,787 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:05:33,788 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-09 07:05:33,791 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:05:33,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-09 07:05:33,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-09 07:05:33,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-11-09 07:05:34,025 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-11-09 07:05:34,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:34,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:34,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:34,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:34,118 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:05:34,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 60 [2024-11-09 07:05:34,126 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:05:34,126 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:05:34,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728266258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:05:34,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:05:34,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-11-09 07:05:34,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466305604] [2024-11-09 07:05:34,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:05:34,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 07:05:34,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:05:34,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 07:05:34,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2024-11-09 07:05:34,516 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-11-09 07:05:34,517 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 753 transitions, 14242 flow. Second operand has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:05:34,517 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:05:34,517 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-11-09 07:05:34,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:05:36,463 INFO L124 PetriNetUnfolderBase]: 1375/5326 cut-off events. [2024-11-09 07:05:36,464 INFO L125 PetriNetUnfolderBase]: For 60242/60359 co-relation queries the response was YES. [2024-11-09 07:05:36,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33689 conditions, 5326 events. 1375/5326 cut-off events. For 60242/60359 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 56124 event pairs, 100 based on Foata normal form. 27/5336 useless extension candidates. Maximal degree in co-relation 33567. Up to 2201 conditions per place. [2024-11-09 07:05:36,527 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 632 selfloop transitions, 213 changer transitions 0/916 dead transitions. [2024-11-09 07:05:36,527 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 916 transitions, 18410 flow [2024-11-09 07:05:36,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 07:05:36,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-09 07:05:36,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1053 transitions. [2024-11-09 07:05:36,529 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6882352941176471 [2024-11-09 07:05:36,529 INFO L175 Difference]: Start difference. First operand has 344 places, 753 transitions, 14242 flow. Second operand 17 states and 1053 transitions. [2024-11-09 07:05:36,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 916 transitions, 18410 flow [2024-11-09 07:05:37,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 916 transitions, 18219 flow, removed 39 selfloop flow, removed 4 redundant places. [2024-11-09 07:05:37,456 INFO L231 Difference]: Finished difference. Result has 361 places, 781 transitions, 15217 flow [2024-11-09 07:05:37,456 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=14051, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=753, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=186, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=545, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=15217, PETRI_PLACES=361, PETRI_TRANSITIONS=781} [2024-11-09 07:05:37,457 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 272 predicate places. [2024-11-09 07:05:37,457 INFO L471 AbstractCegarLoop]: Abstraction has has 361 places, 781 transitions, 15217 flow [2024-11-09 07:05:37,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:05:37,457 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:05:37,457 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:05:37,470 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-09 07:05:37,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-09 07:05:37,658 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-09 07:05:37,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:05:37,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1313629989, now seen corresponding path program 5 times [2024-11-09 07:05:37,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:05:37,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112555843] [2024-11-09 07:05:37,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:37,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:05:37,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:05:38,175 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:05:38,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:05:38,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112555843] [2024-11-09 07:05:38,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112555843] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:05:38,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060800363] [2024-11-09 07:05:38,175 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-09 07:05:38,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:05:38,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:05:38,178 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:05:38,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 07:05:38,311 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 07:05:38,311 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:05:38,313 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-09 07:05:38,315 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:05:38,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-09 07:05:38,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-11-09 07:05:38,584 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2024-11-09 07:05:38,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2024-11-09 07:05:38,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:05:38,826 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:05:38,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 41 [2024-11-09 07:05:38,854 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:05:38,854 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:05:49,555 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:05:49,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1060800363] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 07:05:49,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 07:05:49,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12, 14] total 34 [2024-11-09 07:05:49,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956129411] [2024-11-09 07:05:49,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:05:49,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 07:05:49,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:05:49,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 07:05:49,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=1011, Unknown=2, NotChecked=0, Total=1190 [2024-11-09 07:05:54,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:05:59,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:06:04,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-09 07:06:07,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1]