./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-array-init.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/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-wip.dd.update-z3-fca748b-m [2024-11-20 13:58:03,452 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 13:58:03,542 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-20 13:58:03,549 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 13:58:03,549 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 13:58:03,571 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 13:58:03,572 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 13:58:03,573 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 13:58:03,574 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 13:58:03,575 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 13:58:03,575 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 13:58:03,575 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 13:58:03,575 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 13:58:03,576 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 13:58:03,576 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 13:58:03,576 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 13:58:03,576 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 13:58:03,577 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 13:58:03,577 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 13:58:03,579 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 13:58:03,579 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 13:58:03,582 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 13:58:03,584 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-20 13:58:03,585 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 13:58:03,585 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 13:58:03,585 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 13:58:03,585 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 13:58:03,585 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 13:58:03,585 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 13:58:03,586 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 13:58:03,586 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 13:58:03,586 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:58:03,586 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 13:58:03,586 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 13:58:03,586 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 13:58:03,586 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 13:58:03,587 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 13:58:03,587 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 13:58:03,587 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 13:58:03,589 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 13:58:03,589 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 13:58:03,589 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16badef15fc63e9ddc5177a1b2c95333295e395a70b18e0490e8c8921933ac0e [2024-11-20 13:58:03,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 13:58:03,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 13:58:03,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 13:58:03,832 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 13:58:03,835 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 13:58:03,836 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-array-init.i [2024-11-20 13:58:05,401 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 13:58:05,649 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 13:58:05,650 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-array-init.i [2024-11-20 13:58:05,673 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/880773174/58e8e661b9354a23b3e0ea691bb64567/FLAGf3e2e921f [2024-11-20 13:58:05,686 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/880773174/58e8e661b9354a23b3e0ea691bb64567 [2024-11-20 13:58:05,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 13:58:05,689 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 13:58:05,691 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 13:58:05,691 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 13:58:05,695 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 13:58:05,696 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:58:05" (1/1) ... [2024-11-20 13:58:05,697 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47d94c76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:58:05, skipping insertion in model container [2024-11-20 13:58:05,697 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:58:05" (1/1) ... [2024-11-20 13:58:05,738 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 13:58:06,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:58:06,181 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 13:58:06,212 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:58:06,249 INFO L204 MainTranslator]: Completed translation [2024-11-20 13:58:06,249 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:58:06 WrapperNode [2024-11-20 13:58:06,249 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 13:58:06,250 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 13:58:06,251 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 13:58:06,251 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 13:58:06,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:58:06" (1/1) ... [2024-11-20 13:58:06,272 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:58:06" (1/1) ... [2024-11-20 13:58:06,295 INFO L138 Inliner]: procedures = 261, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 69 [2024-11-20 13:58:06,296 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 13:58:06,296 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 13:58:06,297 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 13:58:06,297 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 13:58:06,304 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:58:06" (1/1) ... [2024-11-20 13:58:06,304 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:58:06" (1/1) ... [2024-11-20 13:58:06,306 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:58:06" (1/1) ... [2024-11-20 13:58:06,307 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:58:06" (1/1) ... [2024-11-20 13:58:06,313 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:58:06" (1/1) ... [2024-11-20 13:58:06,316 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:58:06" (1/1) ... [2024-11-20 13:58:06,317 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:58:06" (1/1) ... [2024-11-20 13:58:06,318 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:58:06" (1/1) ... [2024-11-20 13:58:06,319 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 13:58:06,320 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 13:58:06,320 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 13:58:06,321 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 13:58:06,325 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:58:06" (1/1) ... [2024-11-20 13:58:06,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:58:06,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:58:06,362 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) [2024-11-20 13:58:06,364 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 [2024-11-20 13:58:06,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 13:58:06,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-20 13:58:06,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-20 13:58:06,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 13:58:06,402 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-20 13:58:06,402 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-20 13:58:06,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 13:58:06,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 13:58:06,404 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 13:58:06,514 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 13:58:06,515 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 13:58:06,634 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 13:58:06,634 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 13:58:06,652 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 13:58:06,653 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-20 13:58:06,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:58:06 BoogieIcfgContainer [2024-11-20 13:58:06,654 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 13:58:06,655 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 13:58:06,655 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 13:58:06,658 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 13:58:06,659 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:58:05" (1/3) ... [2024-11-20 13:58:06,659 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@774caee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:58:06, skipping insertion in model container [2024-11-20 13:58:06,659 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:58:06" (2/3) ... [2024-11-20 13:58:06,660 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@774caee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:58:06, skipping insertion in model container [2024-11-20 13:58:06,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:58:06" (3/3) ... [2024-11-20 13:58:06,661 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-array-init.i [2024-11-20 13:58:06,678 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 13:58:06,679 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-20 13:58:06,679 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 13:58:06,745 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-20 13:58:06,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 90 transitions, 187 flow [2024-11-20 13:58:06,849 INFO L124 PetriNetUnfolderBase]: 6/131 cut-off events. [2024-11-20 13:58:06,850 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 13:58:06,853 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. [2024-11-20 13:58:06,855 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 90 transitions, 187 flow [2024-11-20 13:58:06,858 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 90 transitions, 187 flow [2024-11-20 13:58:06,869 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:58:06,877 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;@763224b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:58:06,877 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-20 13:58:06,887 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:58:06,887 INFO L124 PetriNetUnfolderBase]: 3/43 cut-off events. [2024-11-20 13:58:06,887 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:58:06,887 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:58:06,888 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] [2024-11-20 13:58:06,889 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)] === [2024-11-20 13:58:06,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:58:06,893 INFO L85 PathProgramCache]: Analyzing trace with hash 2036736685, now seen corresponding path program 1 times [2024-11-20 13:58:06,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:58:06,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338011385] [2024-11-20 13:58:06,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:58:06,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:58:07,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:58:07,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:58:07,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:58:07,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338011385] [2024-11-20 13:58:07,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338011385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:58:07,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:58:07,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:58:07,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156694608] [2024-11-20 13:58:07,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:58:07,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:58:07,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:58:07,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:58:07,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:58:07,754 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 90 [2024-11-20 13:58:07,757 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) [2024-11-20 13:58:07,757 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:58:07,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 90 [2024-11-20 13:58:07,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:58:07,949 INFO L124 PetriNetUnfolderBase]: 91/418 cut-off events. [2024-11-20 13:58:07,949 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-20 13:58:07,950 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. [2024-11-20 13:58:07,953 INFO L140 encePairwiseOnDemand]: 76/90 looper letters, 27 selfloop transitions, 22 changer transitions 1/108 dead transitions. [2024-11-20 13:58:07,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 108 transitions, 321 flow [2024-11-20 13:58:07,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:58:07,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:58:07,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 407 transitions. [2024-11-20 13:58:07,964 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7537037037037037 [2024-11-20 13:58:07,965 INFO L175 Difference]: Start difference. First operand has 89 places, 90 transitions, 187 flow. Second operand 6 states and 407 transitions. [2024-11-20 13:58:07,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 108 transitions, 321 flow [2024-11-20 13:58:07,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 108 transitions, 321 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:58:07,971 INFO L231 Difference]: Finished difference. Result has 99 places, 107 transitions, 329 flow [2024-11-20 13:58:07,973 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} [2024-11-20 13:58:07,975 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 10 predicate places. [2024-11-20 13:58:07,975 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 107 transitions, 329 flow [2024-11-20 13:58:07,975 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) [2024-11-20 13:58:07,976 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:58:07,976 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] [2024-11-20 13:58:07,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 13:58:07,976 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)] === [2024-11-20 13:58:07,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:58:07,977 INFO L85 PathProgramCache]: Analyzing trace with hash 460665484, now seen corresponding path program 1 times [2024-11-20 13:58:07,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:58:07,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656283290] [2024-11-20 13:58:07,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:58:07,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:58:07,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:58:08,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:58:08,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:58:08,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656283290] [2024-11-20 13:58:08,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656283290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:58:08,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:58:08,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:58:08,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139896530] [2024-11-20 13:58:08,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:58:08,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 13:58:08,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:58:08,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 13:58:08,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 13:58:08,193 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 90 [2024-11-20 13:58:08,194 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) [2024-11-20 13:58:08,194 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:58:08,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 90 [2024-11-20 13:58:08,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:58:08,236 INFO L124 PetriNetUnfolderBase]: 40/253 cut-off events. [2024-11-20 13:58:08,236 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-11-20 13:58:08,237 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. [2024-11-20 13:58:08,238 INFO L140 encePairwiseOnDemand]: 82/90 looper letters, 11 selfloop transitions, 2 changer transitions 5/112 dead transitions. [2024-11-20 13:58:08,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 112 transitions, 375 flow [2024-11-20 13:58:08,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:58:08,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:58:08,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 463 transitions. [2024-11-20 13:58:08,240 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8574074074074074 [2024-11-20 13:58:08,240 INFO L175 Difference]: Start difference. First operand has 99 places, 107 transitions, 329 flow. Second operand 6 states and 463 transitions. [2024-11-20 13:58:08,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 112 transitions, 375 flow [2024-11-20 13:58:08,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 112 transitions, 375 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:58:08,245 INFO L231 Difference]: Finished difference. Result has 107 places, 107 transitions, 347 flow [2024-11-20 13:58:08,245 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} [2024-11-20 13:58:08,245 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 18 predicate places. [2024-11-20 13:58:08,246 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 107 transitions, 347 flow [2024-11-20 13:58:08,246 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) [2024-11-20 13:58:08,246 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:58:08,246 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:58:08,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 13:58:08,247 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)] === [2024-11-20 13:58:08,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:58:08,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1788191437, now seen corresponding path program 1 times [2024-11-20 13:58:08,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:58:08,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138677526] [2024-11-20 13:58:08,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:58:08,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:58:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:58:08,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:58:08,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:58:08,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138677526] [2024-11-20 13:58:08,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138677526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:58:08,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:58:08,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:58:08,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110059778] [2024-11-20 13:58:08,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:58:08,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:58:08,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:58:08,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:58:08,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:58:08,603 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 90 [2024-11-20 13:58:08,604 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) [2024-11-20 13:58:08,604 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:58:08,604 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 90 [2024-11-20 13:58:08,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:58:08,667 INFO L124 PetriNetUnfolderBase]: 109/469 cut-off events. [2024-11-20 13:58:08,668 INFO L125 PetriNetUnfolderBase]: For 99/102 co-relation queries the response was YES. [2024-11-20 13:58:08,669 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. [2024-11-20 13:58:08,671 INFO L140 encePairwiseOnDemand]: 79/90 looper letters, 46 selfloop transitions, 22 changer transitions 0/128 dead transitions. [2024-11-20 13:58:08,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 128 transitions, 557 flow [2024-11-20 13:58:08,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:58:08,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:58:08,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 404 transitions. [2024-11-20 13:58:08,672 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7481481481481481 [2024-11-20 13:58:08,672 INFO L175 Difference]: Start difference. First operand has 107 places, 107 transitions, 347 flow. Second operand 6 states and 404 transitions. [2024-11-20 13:58:08,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 128 transitions, 557 flow [2024-11-20 13:58:08,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 128 transitions, 543 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-20 13:58:08,677 INFO L231 Difference]: Finished difference. Result has 109 places, 128 transitions, 515 flow [2024-11-20 13:58:08,677 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} [2024-11-20 13:58:08,677 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 20 predicate places. [2024-11-20 13:58:08,677 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 128 transitions, 515 flow [2024-11-20 13:58:08,678 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) [2024-11-20 13:58:08,678 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:58:08,678 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:58:08,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 13:58:08,678 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-20 13:58:08,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:58:08,679 INFO L85 PathProgramCache]: Analyzing trace with hash 628878030, now seen corresponding path program 1 times [2024-11-20 13:58:08,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:58:08,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513761315] [2024-11-20 13:58:08,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:58:08,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:58:08,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:58:08,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:58:08,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:58:08,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513761315] [2024-11-20 13:58:08,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513761315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:58:08,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:58:08,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:58:08,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037732587] [2024-11-20 13:58:08,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:58:08,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:58:08,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:58:08,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:58:08,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:58:08,993 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 90 [2024-11-20 13:58:08,994 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) [2024-11-20 13:58:08,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:58:08,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 90 [2024-11-20 13:58:08,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:58:09,119 INFO L124 PetriNetUnfolderBase]: 140/585 cut-off events. [2024-11-20 13:58:09,120 INFO L125 PetriNetUnfolderBase]: For 340/365 co-relation queries the response was YES. [2024-11-20 13:58:09,121 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. [2024-11-20 13:58:09,123 INFO L140 encePairwiseOnDemand]: 76/90 looper letters, 46 selfloop transitions, 57 changer transitions 8/176 dead transitions. [2024-11-20 13:58:09,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 176 transitions, 963 flow [2024-11-20 13:58:09,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:58:09,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:58:09,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 474 transitions. [2024-11-20 13:58:09,124 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8777777777777778 [2024-11-20 13:58:09,125 INFO L175 Difference]: Start difference. First operand has 109 places, 128 transitions, 515 flow. Second operand 6 states and 474 transitions. [2024-11-20 13:58:09,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 176 transitions, 963 flow [2024-11-20 13:58:09,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 176 transitions, 925 flow, removed 19 selfloop flow, removed 0 redundant places. [2024-11-20 13:58:09,130 INFO L231 Difference]: Finished difference. Result has 119 places, 168 transitions, 981 flow [2024-11-20 13:58:09,130 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} [2024-11-20 13:58:09,131 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 30 predicate places. [2024-11-20 13:58:09,131 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 168 transitions, 981 flow [2024-11-20 13:58:09,131 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) [2024-11-20 13:58:09,131 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:58:09,131 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] [2024-11-20 13:58:09,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 13:58:09,132 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)] === [2024-11-20 13:58:09,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:58:09,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1921327265, now seen corresponding path program 1 times [2024-11-20 13:58:09,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:58:09,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057622691] [2024-11-20 13:58:09,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:58:09,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:58:09,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:58:09,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 13:58:09,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:58:09,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057622691] [2024-11-20 13:58:09,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057622691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:58:09,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:58:09,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:58:09,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571516276] [2024-11-20 13:58:09,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:58:09,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:58:09,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:58:09,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:58:09,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:58:09,631 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 90 [2024-11-20 13:58:09,631 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) [2024-11-20 13:58:09,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:58:09,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 90 [2024-11-20 13:58:09,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:58:09,700 INFO L124 PetriNetUnfolderBase]: 125/536 cut-off events. [2024-11-20 13:58:09,702 INFO L125 PetriNetUnfolderBase]: For 639/656 co-relation queries the response was YES. [2024-11-20 13:58:09,704 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. [2024-11-20 13:58:09,705 INFO L140 encePairwiseOnDemand]: 84/90 looper letters, 55 selfloop transitions, 0 changer transitions 15/167 dead transitions. [2024-11-20 13:58:09,706 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 167 transitions, 1105 flow [2024-11-20 13:58:09,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:58:09,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:58:09,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 410 transitions. [2024-11-20 13:58:09,708 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7592592592592593 [2024-11-20 13:58:09,708 INFO L175 Difference]: Start difference. First operand has 119 places, 168 transitions, 981 flow. Second operand 6 states and 410 transitions. [2024-11-20 13:58:09,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 167 transitions, 1105 flow [2024-11-20 13:58:09,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 167 transitions, 1069 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-11-20 13:58:09,715 INFO L231 Difference]: Finished difference. Result has 115 places, 152 transitions, 908 flow [2024-11-20 13:58:09,715 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} [2024-11-20 13:58:09,717 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 26 predicate places. [2024-11-20 13:58:09,717 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 152 transitions, 908 flow [2024-11-20 13:58:09,718 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) [2024-11-20 13:58:09,718 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:58:09,718 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] [2024-11-20 13:58:09,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 13:58:09,719 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)] === [2024-11-20 13:58:09,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:58:09,720 INFO L85 PathProgramCache]: Analyzing trace with hash 707737008, now seen corresponding path program 1 times [2024-11-20 13:58:09,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:58:09,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421200730] [2024-11-20 13:58:09,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:58:09,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:58:09,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:58:10,655 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:58:10,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:58:10,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421200730] [2024-11-20 13:58:10,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421200730] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:58:10,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44079263] [2024-11-20 13:58:10,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:58:10,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:58:10,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:58:10,659 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) [2024-11-20 13:58:10,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 13:58:10,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:58:10,732 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-20 13:58:10,741 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:58:10,850 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 [2024-11-20 13:58:10,955 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 [2024-11-20 13:58:11,016 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:58:11,017 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 [2024-11-20 13:58:11,076 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:58:11,077 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 [2024-11-20 13:58:11,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:11,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:11,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:11,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:11,143 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:58:11,144 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 [2024-11-20 13:58:11,152 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:58:11,152 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:58:11,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [44079263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:58:11,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:58:11,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-11-20 13:58:11,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286962801] [2024-11-20 13:58:11,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:58:11,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 13:58:11,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:58:11,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 13:58:11,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-11-20 13:58:11,546 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-11-20 13:58:11,548 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) [2024-11-20 13:58:11,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:58:11,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-11-20 13:58:11,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:58:12,043 INFO L124 PetriNetUnfolderBase]: 256/858 cut-off events. [2024-11-20 13:58:12,043 INFO L125 PetriNetUnfolderBase]: For 1056/1071 co-relation queries the response was YES. [2024-11-20 13:58:12,046 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. [2024-11-20 13:58:12,049 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 165 selfloop transitions, 64 changer transitions 0/269 dead transitions. [2024-11-20 13:58:12,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 269 transitions, 2226 flow [2024-11-20 13:58:12,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 13:58:12,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-20 13:58:12,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 929 transitions. [2024-11-20 13:58:12,051 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6881481481481482 [2024-11-20 13:58:12,051 INFO L175 Difference]: Start difference. First operand has 115 places, 152 transitions, 908 flow. Second operand 15 states and 929 transitions. [2024-11-20 13:58:12,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 269 transitions, 2226 flow [2024-11-20 13:58:12,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 269 transitions, 2224 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:58:12,061 INFO L231 Difference]: Finished difference. Result has 119 places, 198 transitions, 1533 flow [2024-11-20 13:58:12,061 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} [2024-11-20 13:58:12,062 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 30 predicate places. [2024-11-20 13:58:12,062 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 198 transitions, 1533 flow [2024-11-20 13:58:12,062 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) [2024-11-20 13:58:12,063 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:58:12,063 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] [2024-11-20 13:58:12,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-20 13:58:12,266 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 [2024-11-20 13:58:12,267 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-20 13:58:12,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:58:12,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1200885021, now seen corresponding path program 1 times [2024-11-20 13:58:12,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:58:12,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982849104] [2024-11-20 13:58:12,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:58:12,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:58:12,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:58:12,933 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:58:12,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:58:12,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982849104] [2024-11-20 13:58:12,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982849104] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:58:12,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455816121] [2024-11-20 13:58:12,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:58:12,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:58:12,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:58:12,939 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) [2024-11-20 13:58:12,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 13:58:13,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:58:13,015 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-20 13:58:13,018 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:58:13,083 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 [2024-11-20 13:58:13,112 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 [2024-11-20 13:58:13,152 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 [2024-11-20 13:58:13,183 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 [2024-11-20 13:58:13,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:13,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:13,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:13,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:13,392 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:58:13,393 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 [2024-11-20 13:58:13,404 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:58:13,405 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:58:13,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455816121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:58:13,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:58:13,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-11-20 13:58:13,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41966142] [2024-11-20 13:58:13,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:58:13,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 13:58:13,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:58:13,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 13:58:13,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2024-11-20 13:58:13,864 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 90 [2024-11-20 13:58:13,865 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) [2024-11-20 13:58:13,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:58:13,865 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 90 [2024-11-20 13:58:13,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:58:14,242 INFO L124 PetriNetUnfolderBase]: 256/954 cut-off events. [2024-11-20 13:58:14,243 INFO L125 PetriNetUnfolderBase]: For 1830/1868 co-relation queries the response was YES. [2024-11-20 13:58:14,246 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. [2024-11-20 13:58:14,251 INFO L140 encePairwiseOnDemand]: 70/90 looper letters, 158 selfloop transitions, 43 changer transitions 0/254 dead transitions. [2024-11-20 13:58:14,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 254 transitions, 2355 flow [2024-11-20 13:58:14,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 13:58:14,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-20 13:58:14,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 986 transitions. [2024-11-20 13:58:14,254 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7303703703703703 [2024-11-20 13:58:14,254 INFO L175 Difference]: Start difference. First operand has 119 places, 198 transitions, 1533 flow. Second operand 15 states and 986 transitions. [2024-11-20 13:58:14,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 254 transitions, 2355 flow [2024-11-20 13:58:14,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 254 transitions, 2310 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-20 13:58:14,272 INFO L231 Difference]: Finished difference. Result has 140 places, 236 transitions, 2020 flow [2024-11-20 13:58:14,273 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} [2024-11-20 13:58:14,273 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 51 predicate places. [2024-11-20 13:58:14,274 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 236 transitions, 2020 flow [2024-11-20 13:58:14,274 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) [2024-11-20 13:58:14,274 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:58:14,274 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] [2024-11-20 13:58:14,282 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-20 13:58:14,478 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 [2024-11-20 13:58:14,479 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)] === [2024-11-20 13:58:14,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:58:14,481 INFO L85 PathProgramCache]: Analyzing trace with hash 35174206, now seen corresponding path program 2 times [2024-11-20 13:58:14,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:58:14,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956216953] [2024-11-20 13:58:14,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:58:14,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:58:14,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:58:15,182 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:58:15,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:58:15,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956216953] [2024-11-20 13:58:15,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956216953] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:58:15,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205167814] [2024-11-20 13:58:15,183 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 13:58:15,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:58:15,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:58:15,185 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) [2024-11-20 13:58:15,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 13:58:15,251 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 13:58:15,252 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 13:58:15,253 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-20 13:58:15,255 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:58:15,383 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 [2024-11-20 13:58:15,412 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 [2024-11-20 13:58:15,463 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 [2024-11-20 13:58:15,522 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 [2024-11-20 13:58:15,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:15,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:15,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:15,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:15,625 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:58:15,625 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 [2024-11-20 13:58:15,631 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:58:15,632 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:58:15,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1205167814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:58:15,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:58:15,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-11-20 13:58:15,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19907532] [2024-11-20 13:58:15,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:58:15,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 13:58:15,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:58:15,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 13:58:15,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2024-11-20 13:58:15,991 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-11-20 13:58:15,992 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) [2024-11-20 13:58:15,992 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:58:15,992 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-11-20 13:58:15,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:58:16,416 INFO L124 PetriNetUnfolderBase]: 408/1477 cut-off events. [2024-11-20 13:58:16,416 INFO L125 PetriNetUnfolderBase]: For 4016/4054 co-relation queries the response was YES. [2024-11-20 13:58:16,421 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. [2024-11-20 13:58:16,427 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 267 selfloop transitions, 81 changer transitions 0/391 dead transitions. [2024-11-20 13:58:16,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 391 transitions, 4244 flow [2024-11-20 13:58:16,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 13:58:16,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-20 13:58:16,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 799 transitions. [2024-11-20 13:58:16,429 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6829059829059829 [2024-11-20 13:58:16,429 INFO L175 Difference]: Start difference. First operand has 140 places, 236 transitions, 2020 flow. Second operand 13 states and 799 transitions. [2024-11-20 13:58:16,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 391 transitions, 4244 flow [2024-11-20 13:58:16,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 391 transitions, 4208 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-11-20 13:58:16,460 INFO L231 Difference]: Finished difference. Result has 161 places, 285 transitions, 2906 flow [2024-11-20 13:58:16,460 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} [2024-11-20 13:58:16,461 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 72 predicate places. [2024-11-20 13:58:16,461 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 285 transitions, 2906 flow [2024-11-20 13:58:16,461 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) [2024-11-20 13:58:16,461 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:58:16,461 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] [2024-11-20 13:58:16,471 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-20 13:58:16,665 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 [2024-11-20 13:58:16,666 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)] === [2024-11-20 13:58:16,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:58:16,667 INFO L85 PathProgramCache]: Analyzing trace with hash 808741728, now seen corresponding path program 3 times [2024-11-20 13:58:16,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:58:16,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266794474] [2024-11-20 13:58:16,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:58:16,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:58:16,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:58:17,180 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:58:17,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:58:17,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266794474] [2024-11-20 13:58:17,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266794474] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:58:17,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183540419] [2024-11-20 13:58:17,181 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-20 13:58:17,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:58:17,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:58:17,184 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) [2024-11-20 13:58:17,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 13:58:17,258 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-20 13:58:17,259 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 13:58:17,260 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-20 13:58:17,262 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:58:17,369 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 [2024-11-20 13:58:17,396 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 [2024-11-20 13:58:17,430 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 [2024-11-20 13:58:17,471 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 [2024-11-20 13:58:17,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:17,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:17,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:17,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:17,534 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:58:17,535 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 [2024-11-20 13:58:17,541 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:58:17,541 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:58:17,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183540419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:58:17,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:58:17,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-11-20 13:58:17,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978942536] [2024-11-20 13:58:17,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:58:17,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 13:58:17,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:58:17,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 13:58:17,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2024-11-20 13:58:17,914 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-11-20 13:58:17,915 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) [2024-11-20 13:58:17,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:58:17,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-11-20 13:58:17,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:58:18,607 INFO L124 PetriNetUnfolderBase]: 555/1991 cut-off events. [2024-11-20 13:58:18,607 INFO L125 PetriNetUnfolderBase]: For 7089/7151 co-relation queries the response was YES. [2024-11-20 13:58:18,615 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. [2024-11-20 13:58:18,625 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 336 selfloop transitions, 87 changer transitions 0/466 dead transitions. [2024-11-20 13:58:18,626 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 466 transitions, 5653 flow [2024-11-20 13:58:18,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 13:58:18,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-20 13:58:18,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 865 transitions. [2024-11-20 13:58:18,628 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6865079365079365 [2024-11-20 13:58:18,628 INFO L175 Difference]: Start difference. First operand has 161 places, 285 transitions, 2906 flow. Second operand 14 states and 865 transitions. [2024-11-20 13:58:18,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 466 transitions, 5653 flow [2024-11-20 13:58:18,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 466 transitions, 5590 flow, removed 26 selfloop flow, removed 2 redundant places. [2024-11-20 13:58:18,686 INFO L231 Difference]: Finished difference. Result has 182 places, 338 transitions, 3947 flow [2024-11-20 13:58:18,686 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} [2024-11-20 13:58:18,687 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 93 predicate places. [2024-11-20 13:58:18,687 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 338 transitions, 3947 flow [2024-11-20 13:58:18,687 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) [2024-11-20 13:58:18,687 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:58:18,688 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] [2024-11-20 13:58:18,698 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-20 13:58:18,891 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 [2024-11-20 13:58:18,892 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-20 13:58:18,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:58:18,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1876887687, now seen corresponding path program 2 times [2024-11-20 13:58:18,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:58:18,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484730996] [2024-11-20 13:58:18,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:58:18,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:58:18,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:58:19,358 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:58:19,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:58:19,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484730996] [2024-11-20 13:58:19,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484730996] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:58:19,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174083504] [2024-11-20 13:58:19,359 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 13:58:19,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:58:19,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:58:19,361 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) [2024-11-20 13:58:19,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-20 13:58:19,441 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 13:58:19,441 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 13:58:19,442 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-20 13:58:19,444 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:58:19,496 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 [2024-11-20 13:58:19,516 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 [2024-11-20 13:58:19,538 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 [2024-11-20 13:58:19,601 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 [2024-11-20 13:58:19,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:19,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:19,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:19,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:19,724 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:58:19,724 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 [2024-11-20 13:58:19,732 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:58:19,733 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:58:19,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174083504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:58:19,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:58:19,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-11-20 13:58:19,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331786213] [2024-11-20 13:58:19,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:58:19,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 13:58:19,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:58:19,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 13:58:19,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2024-11-20 13:58:20,121 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 90 [2024-11-20 13:58:20,122 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) [2024-11-20 13:58:20,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:58:20,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 90 [2024-11-20 13:58:20,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:58:20,934 INFO L124 PetriNetUnfolderBase]: 596/2305 cut-off events. [2024-11-20 13:58:20,935 INFO L125 PetriNetUnfolderBase]: For 10036/10164 co-relation queries the response was YES. [2024-11-20 13:58:20,944 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. [2024-11-20 13:58:20,954 INFO L140 encePairwiseOnDemand]: 70/90 looper letters, 260 selfloop transitions, 100 changer transitions 0/421 dead transitions. [2024-11-20 13:58:20,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 421 transitions, 5629 flow [2024-11-20 13:58:20,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-20 13:58:20,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-20 13:58:20,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1377 transitions. [2024-11-20 13:58:20,957 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7285714285714285 [2024-11-20 13:58:20,957 INFO L175 Difference]: Start difference. First operand has 182 places, 338 transitions, 3947 flow. Second operand 21 states and 1377 transitions. [2024-11-20 13:58:20,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 421 transitions, 5629 flow [2024-11-20 13:58:21,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 421 transitions, 5502 flow, removed 61 selfloop flow, removed 2 redundant places. [2024-11-20 13:58:21,027 INFO L231 Difference]: Finished difference. Result has 205 places, 377 transitions, 4683 flow [2024-11-20 13:58:21,027 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} [2024-11-20 13:58:21,028 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 116 predicate places. [2024-11-20 13:58:21,029 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 377 transitions, 4683 flow [2024-11-20 13:58:21,029 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) [2024-11-20 13:58:21,029 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:58:21,029 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] [2024-11-20 13:58:21,040 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-20 13:58:21,233 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 [2024-11-20 13:58:21,234 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)] === [2024-11-20 13:58:21,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:58:21,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1204398042, now seen corresponding path program 4 times [2024-11-20 13:58:21,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:58:21,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097879433] [2024-11-20 13:58:21,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:58:21,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:58:21,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:58:21,702 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:58:21,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:58:21,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097879433] [2024-11-20 13:58:21,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097879433] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:58:21,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373279473] [2024-11-20 13:58:21,703 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-20 13:58:21,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:58:21,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:58:21,706 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) [2024-11-20 13:58:21,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-20 13:58:21,777 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-20 13:58:21,777 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 13:58:21,778 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-20 13:58:21,780 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:58:21,881 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 [2024-11-20 13:58:21,906 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 [2024-11-20 13:58:21,941 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 [2024-11-20 13:58:21,975 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 [2024-11-20 13:58:22,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:22,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:22,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:22,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:22,036 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:58:22,037 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 [2024-11-20 13:58:22,044 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:58:22,044 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:58:22,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [373279473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:58:22,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:58:22,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-11-20 13:58:22,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486948287] [2024-11-20 13:58:22,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:58:22,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 13:58:22,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:58:22,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 13:58:22,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2024-11-20 13:58:22,475 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-11-20 13:58:22,476 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) [2024-11-20 13:58:22,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:58:22,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-11-20 13:58:22,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:58:23,410 INFO L124 PetriNetUnfolderBase]: 878/3316 cut-off events. [2024-11-20 13:58:23,410 INFO L125 PetriNetUnfolderBase]: For 15240/15342 co-relation queries the response was YES. [2024-11-20 13:58:23,427 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. [2024-11-20 13:58:23,442 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 486 selfloop transitions, 127 changer transitions 0/659 dead transitions. [2024-11-20 13:58:23,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 659 transitions, 9268 flow [2024-11-20 13:58:23,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-20 13:58:23,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-20 13:58:23,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1057 transitions. [2024-11-20 13:58:23,445 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6908496732026144 [2024-11-20 13:58:23,445 INFO L175 Difference]: Start difference. First operand has 205 places, 377 transitions, 4683 flow. Second operand 17 states and 1057 transitions. [2024-11-20 13:58:23,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 659 transitions, 9268 flow [2024-11-20 13:58:23,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 659 transitions, 9160 flow, removed 23 selfloop flow, removed 7 redundant places. [2024-11-20 13:58:23,599 INFO L231 Difference]: Finished difference. Result has 222 places, 435 transitions, 6015 flow [2024-11-20 13:58:23,600 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} [2024-11-20 13:58:23,600 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 133 predicate places. [2024-11-20 13:58:23,601 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 435 transitions, 6015 flow [2024-11-20 13:58:23,601 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) [2024-11-20 13:58:23,601 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:58:23,601 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] [2024-11-20 13:58:23,608 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-20 13:58:23,805 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 [2024-11-20 13:58:23,806 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)] === [2024-11-20 13:58:23,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:58:23,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1681440684, now seen corresponding path program 5 times [2024-11-20 13:58:23,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:58:23,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766491192] [2024-11-20 13:58:23,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:58:23,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:58:23,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:58:24,290 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:58:24,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:58:24,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766491192] [2024-11-20 13:58:24,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766491192] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:58:24,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967898077] [2024-11-20 13:58:24,291 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-20 13:58:24,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:58:24,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:58:24,296 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) [2024-11-20 13:58:24,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-20 13:58:24,381 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 13:58:24,381 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 13:58:24,382 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-20 13:58:24,384 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:58:24,504 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 [2024-11-20 13:58:24,530 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 [2024-11-20 13:58:24,562 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 [2024-11-20 13:58:24,602 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 [2024-11-20 13:58:24,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:24,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:24,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:24,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:24,660 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:58:24,660 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 [2024-11-20 13:58:24,666 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:58:24,666 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:58:24,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [967898077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:58:24,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:58:24,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-11-20 13:58:24,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609334915] [2024-11-20 13:58:24,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:58:24,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 13:58:24,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:58:24,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 13:58:24,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2024-11-20 13:58:25,058 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-11-20 13:58:25,059 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) [2024-11-20 13:58:25,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:58:25,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-11-20 13:58:25,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:58:26,136 INFO L124 PetriNetUnfolderBase]: 1063/3932 cut-off events. [2024-11-20 13:58:26,137 INFO L125 PetriNetUnfolderBase]: For 21592/21715 co-relation queries the response was YES. [2024-11-20 13:58:26,152 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. [2024-11-20 13:58:26,165 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 536 selfloop transitions, 134 changer transitions 0/716 dead transitions. [2024-11-20 13:58:26,166 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 716 transitions, 10691 flow [2024-11-20 13:58:26,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-20 13:58:26,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-20 13:58:26,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1006 transitions. [2024-11-20 13:58:26,168 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6986111111111111 [2024-11-20 13:58:26,168 INFO L175 Difference]: Start difference. First operand has 222 places, 435 transitions, 6015 flow. Second operand 16 states and 1006 transitions. [2024-11-20 13:58:26,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 716 transitions, 10691 flow [2024-11-20 13:58:26,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 716 transitions, 10485 flow, removed 96 selfloop flow, removed 2 redundant places. [2024-11-20 13:58:26,376 INFO L231 Difference]: Finished difference. Result has 244 places, 485 transitions, 7210 flow [2024-11-20 13:58:26,377 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} [2024-11-20 13:58:26,377 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 155 predicate places. [2024-11-20 13:58:26,378 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 485 transitions, 7210 flow [2024-11-20 13:58:26,378 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) [2024-11-20 13:58:26,378 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:58:26,378 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] [2024-11-20 13:58:26,385 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-20 13:58:26,579 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 [2024-11-20 13:58:26,579 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-20 13:58:26,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:58:26,580 INFO L85 PathProgramCache]: Analyzing trace with hash -208675799, now seen corresponding path program 3 times [2024-11-20 13:58:26,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:58:26,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211290688] [2024-11-20 13:58:26,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:58:26,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:58:26,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:58:27,082 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:58:27,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:58:27,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211290688] [2024-11-20 13:58:27,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211290688] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:58:27,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620432063] [2024-11-20 13:58:27,082 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-20 13:58:27,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:58:27,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:58:27,084 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) [2024-11-20 13:58:27,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-20 13:58:27,160 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-20 13:58:27,160 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 13:58:27,161 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-20 13:58:27,163 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:58:27,216 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 [2024-11-20 13:58:27,235 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 [2024-11-20 13:58:27,296 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 [2024-11-20 13:58:27,354 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 [2024-11-20 13:58:27,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:27,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:27,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:27,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:27,431 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:58:27,431 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 [2024-11-20 13:58:27,438 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:58:27,438 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:58:27,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620432063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:58:27,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:58:27,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-11-20 13:58:27,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534995962] [2024-11-20 13:58:27,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:58:27,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 13:58:27,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:58:27,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 13:58:27,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2024-11-20 13:58:27,912 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 90 [2024-11-20 13:58:27,916 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) [2024-11-20 13:58:27,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:58:27,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 90 [2024-11-20 13:58:27,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:58:29,110 INFO L124 PetriNetUnfolderBase]: 1129/4377 cut-off events. [2024-11-20 13:58:29,111 INFO L125 PetriNetUnfolderBase]: For 28552/28850 co-relation queries the response was YES. [2024-11-20 13:58:29,135 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. [2024-11-20 13:58:29,149 INFO L140 encePairwiseOnDemand]: 70/90 looper letters, 368 selfloop transitions, 191 changer transitions 0/635 dead transitions. [2024-11-20 13:58:29,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 635 transitions, 10411 flow [2024-11-20 13:58:29,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-20 13:58:29,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-20 13:58:29,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1514 transitions. [2024-11-20 13:58:29,152 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7314009661835749 [2024-11-20 13:58:29,152 INFO L175 Difference]: Start difference. First operand has 244 places, 485 transitions, 7210 flow. Second operand 23 states and 1514 transitions. [2024-11-20 13:58:29,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 635 transitions, 10411 flow [2024-11-20 13:58:29,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 635 transitions, 10121 flow, removed 125 selfloop flow, removed 3 redundant places. [2024-11-20 13:58:29,642 INFO L231 Difference]: Finished difference. Result has 275 places, 573 transitions, 9070 flow [2024-11-20 13:58:29,642 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} [2024-11-20 13:58:29,643 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 186 predicate places. [2024-11-20 13:58:29,643 INFO L471 AbstractCegarLoop]: Abstraction has has 275 places, 573 transitions, 9070 flow [2024-11-20 13:58:29,643 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) [2024-11-20 13:58:29,643 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:58:29,643 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] [2024-11-20 13:58:29,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-20 13:58:29,844 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 [2024-11-20 13:58:29,844 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)] === [2024-11-20 13:58:29,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:58:29,845 INFO L85 PathProgramCache]: Analyzing trace with hash 361098670, now seen corresponding path program 6 times [2024-11-20 13:58:29,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:58:29,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322192021] [2024-11-20 13:58:29,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:58:29,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:58:29,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:58:30,473 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:58:30,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:58:30,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322192021] [2024-11-20 13:58:30,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322192021] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:58:30,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381782287] [2024-11-20 13:58:30,474 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-20 13:58:30,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:58:30,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:58:30,476 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) [2024-11-20 13:58:30,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-20 13:58:30,573 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-11-20 13:58:30,574 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 13:58:30,575 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-20 13:58:30,577 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:58:30,674 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 [2024-11-20 13:58:30,702 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 [2024-11-20 13:58:30,733 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 [2024-11-20 13:58:30,771 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 [2024-11-20 13:58:30,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:30,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:30,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:30,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:30,833 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:58:30,834 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 [2024-11-20 13:58:30,895 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:58:30,895 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:58:30,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381782287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:58:30,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:58:30,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 22 [2024-11-20 13:58:30,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747676360] [2024-11-20 13:58:30,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:58:30,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 13:58:30,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:58:30,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 13:58:30,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=418, Unknown=0, NotChecked=0, Total=506 [2024-11-20 13:58:31,640 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 90 [2024-11-20 13:58:31,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 573 transitions, 9070 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) [2024-11-20 13:58:31,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:58:31,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 90 [2024-11-20 13:58:31,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:58:32,994 INFO L124 PetriNetUnfolderBase]: 1278/4766 cut-off events. [2024-11-20 13:58:32,994 INFO L125 PetriNetUnfolderBase]: For 35875/36020 co-relation queries the response was YES. [2024-11-20 13:58:33,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26639 conditions, 4766 events. 1278/4766 cut-off events. For 35875/36020 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 48067 event pairs, 144 based on Foata normal form. 21/4771 useless extension candidates. Maximal degree in co-relation 26548. Up to 1374 conditions per place. [2024-11-20 13:58:33,061 INFO L140 encePairwiseOnDemand]: 75/90 looper letters, 711 selfloop transitions, 101 changer transitions 0/850 dead transitions. [2024-11-20 13:58:33,061 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 850 transitions, 14369 flow [2024-11-20 13:58:33,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 13:58:33,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-20 13:58:33,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 878 transitions. [2024-11-20 13:58:33,063 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6968253968253968 [2024-11-20 13:58:33,063 INFO L175 Difference]: Start difference. First operand has 275 places, 573 transitions, 9070 flow. Second operand 14 states and 878 transitions. [2024-11-20 13:58:33,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 850 transitions, 14369 flow [2024-11-20 13:58:33,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 850 transitions, 14285 flow, removed 28 selfloop flow, removed 4 redundant places. [2024-11-20 13:58:33,641 INFO L231 Difference]: Finished difference. Result has 291 places, 614 transitions, 10210 flow [2024-11-20 13:58:33,641 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=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=474, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=10210, PETRI_PLACES=291, PETRI_TRANSITIONS=614} [2024-11-20 13:58:33,642 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 202 predicate places. [2024-11-20 13:58:33,642 INFO L471 AbstractCegarLoop]: Abstraction has has 291 places, 614 transitions, 10210 flow [2024-11-20 13:58:33,642 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) [2024-11-20 13:58:33,642 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:58:33,642 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] [2024-11-20 13:58:33,650 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-20 13:58:33,843 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 [2024-11-20 13:58:33,843 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)] === [2024-11-20 13:58:33,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:58:33,843 INFO L85 PathProgramCache]: Analyzing trace with hash 300743488, now seen corresponding path program 7 times [2024-11-20 13:58:33,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:58:33,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215716308] [2024-11-20 13:58:33,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:58:33,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:58:33,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:58:34,336 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:58:34,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:58:34,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215716308] [2024-11-20 13:58:34,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215716308] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:58:34,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6470076] [2024-11-20 13:58:34,338 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-20 13:58:34,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:58:34,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:58:34,339 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) [2024-11-20 13:58:34,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-20 13:58:34,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:58:34,420 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-20 13:58:34,423 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:58:34,491 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 [2024-11-20 13:58:34,514 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 [2024-11-20 13:58:34,600 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:58:34,601 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 [2024-11-20 13:58:34,632 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:58:34,632 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 [2024-11-20 13:58:34,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:34,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:34,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:34,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:34,714 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:58:34,714 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 [2024-11-20 13:58:34,720 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:58:34,720 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:58:34,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [6470076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:58:34,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:58:34,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-11-20 13:58:34,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936291836] [2024-11-20 13:58:34,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:58:34,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 13:58:34,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:58:34,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 13:58:34,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2024-11-20 13:58:34,999 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-11-20 13:58:35,000 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 614 transitions, 10210 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) [2024-11-20 13:58:35,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:58:35,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-11-20 13:58:35,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:58:36,617 INFO L124 PetriNetUnfolderBase]: 1217/4637 cut-off events. [2024-11-20 13:58:36,617 INFO L125 PetriNetUnfolderBase]: For 39883/40017 co-relation queries the response was YES. [2024-11-20 13:58:36,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26540 conditions, 4637 events. 1217/4637 cut-off events. For 39883/40017 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 46918 event pairs, 103 based on Foata normal form. 18/4644 useless extension candidates. Maximal degree in co-relation 26441. Up to 1750 conditions per place. [2024-11-20 13:58:36,653 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 520 selfloop transitions, 175 changer transitions 0/755 dead transitions. [2024-11-20 13:58:36,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 755 transitions, 13448 flow [2024-11-20 13:58:36,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 13:58:36,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-20 13:58:36,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 881 transitions. [2024-11-20 13:58:36,657 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6992063492063492 [2024-11-20 13:58:36,657 INFO L175 Difference]: Start difference. First operand has 291 places, 614 transitions, 10210 flow. Second operand 14 states and 881 transitions. [2024-11-20 13:58:36,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 755 transitions, 13448 flow [2024-11-20 13:58:37,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 755 transitions, 13021 flow, removed 164 selfloop flow, removed 6 redundant places. [2024-11-20 13:58:37,109 INFO L231 Difference]: Finished difference. Result has 304 places, 642 transitions, 10778 flow [2024-11-20 13:58:37,110 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=9797, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=614, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=147, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=10778, PETRI_PLACES=304, PETRI_TRANSITIONS=642} [2024-11-20 13:58:37,110 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 215 predicate places. [2024-11-20 13:58:37,110 INFO L471 AbstractCegarLoop]: Abstraction has has 304 places, 642 transitions, 10778 flow [2024-11-20 13:58:37,111 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) [2024-11-20 13:58:37,111 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:58:37,111 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] [2024-11-20 13:58:37,117 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-20 13:58:37,311 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 [2024-11-20 13:58:37,311 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-20 13:58:37,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:58:37,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1447400219, now seen corresponding path program 4 times [2024-11-20 13:58:37,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:58:37,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65816823] [2024-11-20 13:58:37,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:58:37,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:58:37,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:58:37,837 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:58:37,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:58:37,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65816823] [2024-11-20 13:58:37,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65816823] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:58:37,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215045588] [2024-11-20 13:58:37,837 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-20 13:58:37,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:58:37,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:58:37,840 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) [2024-11-20 13:58:37,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-20 13:58:37,925 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-20 13:58:37,926 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 13:58:37,927 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-20 13:58:37,928 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:58:37,983 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 [2024-11-20 13:58:38,023 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 [2024-11-20 13:58:38,073 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 [2024-11-20 13:58:38,104 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 [2024-11-20 13:58:38,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:38,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:38,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:38,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:38,185 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:58:38,185 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 [2024-11-20 13:58:38,191 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:58:38,191 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:58:38,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215045588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:58:38,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:58:38,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-11-20 13:58:38,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981793623] [2024-11-20 13:58:38,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:58:38,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 13:58:38,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:58:38,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 13:58:38,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2024-11-20 13:58:38,600 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 90 [2024-11-20 13:58:38,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 642 transitions, 10778 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) [2024-11-20 13:58:38,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:58:38,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 90 [2024-11-20 13:58:38,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:58:40,112 INFO L124 PetriNetUnfolderBase]: 1334/5170 cut-off events. [2024-11-20 13:58:40,112 INFO L125 PetriNetUnfolderBase]: For 46031/46379 co-relation queries the response was YES. [2024-11-20 13:58:40,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29937 conditions, 5170 events. 1334/5170 cut-off events. For 46031/46379 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 53971 event pairs, 109 based on Foata normal form. 85/5235 useless extension candidates. Maximal degree in co-relation 29832. Up to 1986 conditions per place. [2024-11-20 13:58:40,166 INFO L140 encePairwiseOnDemand]: 70/90 looper letters, 466 selfloop transitions, 269 changer transitions 0/820 dead transitions. [2024-11-20 13:58:40,166 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 820 transitions, 15040 flow [2024-11-20 13:58:40,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-20 13:58:40,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-20 13:58:40,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1528 transitions. [2024-11-20 13:58:40,171 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7381642512077294 [2024-11-20 13:58:40,171 INFO L175 Difference]: Start difference. First operand has 304 places, 642 transitions, 10778 flow. Second operand 23 states and 1528 transitions. [2024-11-20 13:58:40,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 820 transitions, 15040 flow [2024-11-20 13:58:40,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 820 transitions, 14848 flow, removed 26 selfloop flow, removed 6 redundant places. [2024-11-20 13:58:40,802 INFO L231 Difference]: Finished difference. Result has 330 places, 727 transitions, 13122 flow [2024-11-20 13:58:40,803 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=10609, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=642, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=200, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=13122, PETRI_PLACES=330, PETRI_TRANSITIONS=727} [2024-11-20 13:58:40,803 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 241 predicate places. [2024-11-20 13:58:40,804 INFO L471 AbstractCegarLoop]: Abstraction has has 330 places, 727 transitions, 13122 flow [2024-11-20 13:58:40,804 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) [2024-11-20 13:58:40,804 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:58:40,804 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] [2024-11-20 13:58:40,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-20 13:58:41,008 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 [2024-11-20 13:58:41,009 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)] === [2024-11-20 13:58:41,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:58:41,009 INFO L85 PathProgramCache]: Analyzing trace with hash 696399802, now seen corresponding path program 8 times [2024-11-20 13:58:41,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:58:41,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658433683] [2024-11-20 13:58:41,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:58:41,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:58:41,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:58:41,621 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:58:41,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:58:41,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658433683] [2024-11-20 13:58:41,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658433683] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:58:41,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143393568] [2024-11-20 13:58:41,622 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 13:58:41,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:58:41,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:58:41,623 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) [2024-11-20 13:58:41,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-20 13:58:41,733 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 13:58:41,734 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 13:58:41,735 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-20 13:58:41,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:58:41,828 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 [2024-11-20 13:58:41,852 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 [2024-11-20 13:58:41,884 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 [2024-11-20 13:58:41,924 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 [2024-11-20 13:58:42,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:42,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:42,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:42,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:42,018 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:58:42,019 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 [2024-11-20 13:58:42,066 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:58:42,066 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:58:42,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143393568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:58:42,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:58:42,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 22 [2024-11-20 13:58:42,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806891292] [2024-11-20 13:58:42,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:58:42,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 13:58:42,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:58:42,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 13:58:42,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2024-11-20 13:58:42,541 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 90 [2024-11-20 13:58:42,542 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 727 transitions, 13122 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) [2024-11-20 13:58:42,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:58:42,542 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 90 [2024-11-20 13:58:42,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:58:44,603 INFO L124 PetriNetUnfolderBase]: 1461/5517 cut-off events. [2024-11-20 13:58:44,603 INFO L125 PetriNetUnfolderBase]: For 58766/58917 co-relation queries the response was YES. [2024-11-20 13:58:44,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34081 conditions, 5517 events. 1461/5517 cut-off events. For 58766/58917 co-relation queries the response was YES. Maximal size of possible extension queue 297. Compared 57817 event pairs, 151 based on Foata normal form. 18/5513 useless extension candidates. Maximal degree in co-relation 33966. Up to 1500 conditions per place. [2024-11-20 13:58:44,676 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 627 selfloop transitions, 233 changer transitions 0/898 dead transitions. [2024-11-20 13:58:44,676 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 898 transitions, 17548 flow [2024-11-20 13:58:44,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 13:58:44,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-20 13:58:44,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 808 transitions. [2024-11-20 13:58:44,678 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6905982905982906 [2024-11-20 13:58:44,678 INFO L175 Difference]: Start difference. First operand has 330 places, 727 transitions, 13122 flow. Second operand 13 states and 808 transitions. [2024-11-20 13:58:44,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 898 transitions, 17548 flow [2024-11-20 13:58:45,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 898 transitions, 17392 flow, removed 68 selfloop flow, removed 3 redundant places. [2024-11-20 13:58:45,608 INFO L231 Difference]: Finished difference. Result has 345 places, 761 transitions, 14491 flow [2024-11-20 13:58:45,609 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=12991, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=727, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=200, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=500, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=14491, PETRI_PLACES=345, PETRI_TRANSITIONS=761} [2024-11-20 13:58:45,610 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 256 predicate places. [2024-11-20 13:58:45,610 INFO L471 AbstractCegarLoop]: Abstraction has has 345 places, 761 transitions, 14491 flow [2024-11-20 13:58:45,610 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) [2024-11-20 13:58:45,610 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:58:45,610 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] [2024-11-20 13:58:45,617 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-20 13:58:45,814 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 [2024-11-20 13:58:45,815 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)] === [2024-11-20 13:58:45,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:58:45,815 INFO L85 PathProgramCache]: Analyzing trace with hash -27766914, now seen corresponding path program 9 times [2024-11-20 13:58:45,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:58:45,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684438961] [2024-11-20 13:58:45,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:58:45,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:58:45,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:58:46,356 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:58:46,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:58:46,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684438961] [2024-11-20 13:58:46,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684438961] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:58:46,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [396352711] [2024-11-20 13:58:46,357 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-20 13:58:46,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:58:46,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:58:46,359 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) [2024-11-20 13:58:46,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-20 13:58:46,466 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-20 13:58:46,466 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 13:58:46,467 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-20 13:58:46,469 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:58:46,581 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 [2024-11-20 13:58:46,610 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 [2024-11-20 13:58:46,645 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 [2024-11-20 13:58:46,687 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 [2024-11-20 13:58:46,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:46,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:46,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:46,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:46,755 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:58:46,755 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 [2024-11-20 13:58:46,762 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:58:46,763 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 13:58:46,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [396352711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:58:46,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 13:58:46,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-11-20 13:58:46,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561201530] [2024-11-20 13:58:46,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:58:46,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 13:58:46,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:58:46,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 13:58:46,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2024-11-20 13:58:47,253 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-11-20 13:58:47,254 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 761 transitions, 14491 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) [2024-11-20 13:58:47,254 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:58:47,254 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-11-20 13:58:47,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:58:48,901 INFO L124 PetriNetUnfolderBase]: 1404/5398 cut-off events. [2024-11-20 13:58:48,902 INFO L125 PetriNetUnfolderBase]: For 64401/64527 co-relation queries the response was YES. [2024-11-20 13:58:48,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34511 conditions, 5398 events. 1404/5398 cut-off events. For 64401/64527 co-relation queries the response was YES. Maximal size of possible extension queue 309. Compared 56896 event pairs, 102 based on Foata normal form. 27/5408 useless extension candidates. Maximal degree in co-relation 34389. Up to 2236 conditions per place. [2024-11-20 13:58:48,948 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 636 selfloop transitions, 216 changer transitions 0/925 dead transitions. [2024-11-20 13:58:48,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 925 transitions, 18692 flow [2024-11-20 13:58:48,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-20 13:58:48,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-20 13:58:48,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1053 transitions. [2024-11-20 13:58:48,950 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6882352941176471 [2024-11-20 13:58:48,950 INFO L175 Difference]: Start difference. First operand has 345 places, 761 transitions, 14491 flow. Second operand 17 states and 1053 transitions. [2024-11-20 13:58:48,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 925 transitions, 18692 flow [2024-11-20 13:58:49,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 925 transitions, 18489 flow, removed 45 selfloop flow, removed 4 redundant places. [2024-11-20 13:58:49,716 INFO L231 Difference]: Finished difference. Result has 362 places, 789 transitions, 15464 flow [2024-11-20 13:58:49,716 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=14288, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=761, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=189, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=550, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=15464, PETRI_PLACES=362, PETRI_TRANSITIONS=789} [2024-11-20 13:58:49,716 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 273 predicate places. [2024-11-20 13:58:49,716 INFO L471 AbstractCegarLoop]: Abstraction has has 362 places, 789 transitions, 15464 flow [2024-11-20 13:58:49,717 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) [2024-11-20 13:58:49,717 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:58:49,717 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] [2024-11-20 13:58:49,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-20 13:58:49,917 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 [2024-11-20 13:58:49,918 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-20 13:58:49,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:58:49,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1480845025, now seen corresponding path program 5 times [2024-11-20 13:58:49,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:58:49,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229899190] [2024-11-20 13:58:49,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:58:49,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:58:49,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:58:50,455 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:58:50,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:58:50,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229899190] [2024-11-20 13:58:50,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229899190] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 13:58:50,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545430869] [2024-11-20 13:58:50,455 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-20 13:58:50,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 13:58:50,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:58:50,458 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) [2024-11-20 13:58:50,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-20 13:58:50,563 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 13:58:50,563 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 13:58:50,566 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-20 13:58:50,567 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 13:58:50,741 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 [2024-11-20 13:58:50,783 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 [2024-11-20 13:58:50,822 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 [2024-11-20 13:58:50,985 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 [2024-11-20 13:58:51,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 13:58:51,040 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 13:58:51,041 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 [2024-11-20 13:58:51,071 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:58:51,071 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 13:58:56,198 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:58:56,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545430869] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-20 13:58:56,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-20 13:58:56,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12, 15] total 35 [2024-11-20 13:58:56,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893815238] [2024-11-20 13:58:56,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:58:56,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 13:58:56,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:58:56,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 13:58:56,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=1080, Unknown=1, NotChecked=0, Total=1260 [2024-11-20 13:59:00,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.98s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-20 13:59:04,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.98s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-20 13:59:08,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-20 13:59:14,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-20 13:59:16,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-20 13:59:18,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-20 13:59:21,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-20 13:59:25,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-20 13:59:28,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-20 13:59:31,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-20 13:59:32,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-20 13:59:35,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.83s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-20 13:59:37,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-20 13:59:38,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1]