./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs-b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs-b.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 bee6bfabfc9168d01d046a770b423c49a0035ad8b39e289385170f3b76ba2fb2 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 12:13:02,447 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 12:13:02,514 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-12 12:13:02,520 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 12:13:02,521 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 12:13:02,557 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 12:13:02,557 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 12:13:02,558 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 12:13:02,561 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 12:13:02,561 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 12:13:02,562 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 12:13:02,562 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 12:13:02,563 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 12:13:02,563 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 12:13:02,563 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 12:13:02,564 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 12:13:02,564 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 12:13:02,564 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 12:13:02,565 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 12:13:02,565 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 12:13:02,566 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 12:13:02,566 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 12:13:02,566 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-12 12:13:02,567 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 12:13:02,567 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 12:13:02,567 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 12:13:02,568 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 12:13:02,568 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 12:13:02,568 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 12:13:02,569 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 12:13:02,569 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 12:13:02,569 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:13:02,570 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 12:13:02,570 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 12:13:02,570 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 12:13:02,571 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 12:13:02,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 12:13:02,571 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 12:13:02,572 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 12:13:02,572 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 12:13:02,572 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 12:13:02,574 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bee6bfabfc9168d01d046a770b423c49a0035ad8b39e289385170f3b76ba2fb2 [2024-11-12 12:13:02,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 12:13:02,867 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 12:13:02,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 12:13:02,871 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 12:13:02,872 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 12:13:02,873 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs-b.i [2024-11-12 12:13:04,365 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 12:13:04,635 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 12:13:04,636 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs-b.i [2024-11-12 12:13:04,649 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6060e37fc/34525c748e74454f9409c75237120630/FLAGbc92feca7 [2024-11-12 12:13:04,948 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6060e37fc/34525c748e74454f9409c75237120630 [2024-11-12 12:13:04,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 12:13:04,952 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 12:13:04,953 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 12:13:04,953 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 12:13:04,957 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 12:13:04,958 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:13:04" (1/1) ... [2024-11-12 12:13:04,959 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a07aa0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:04, skipping insertion in model container [2024-11-12 12:13:04,959 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:13:04" (1/1) ... [2024-11-12 12:13:05,006 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 12:13:05,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:13:05,415 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 12:13:05,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:13:05,526 INFO L204 MainTranslator]: Completed translation [2024-11-12 12:13:05,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:05 WrapperNode [2024-11-12 12:13:05,526 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 12:13:05,527 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 12:13:05,528 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 12:13:05,528 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 12:13:05,535 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:05" (1/1) ... [2024-11-12 12:13:05,580 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:05" (1/1) ... [2024-11-12 12:13:05,623 INFO L138 Inliner]: procedures = 169, calls = 16, calls flagged for inlining = 6, calls inlined = 9, statements flattened = 178 [2024-11-12 12:13:05,623 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 12:13:05,624 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 12:13:05,624 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 12:13:05,625 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 12:13:05,633 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:05" (1/1) ... [2024-11-12 12:13:05,633 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:05" (1/1) ... [2024-11-12 12:13:05,637 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:05" (1/1) ... [2024-11-12 12:13:05,637 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:05" (1/1) ... [2024-11-12 12:13:05,653 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:05" (1/1) ... [2024-11-12 12:13:05,660 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:05" (1/1) ... [2024-11-12 12:13:05,662 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:05" (1/1) ... [2024-11-12 12:13:05,667 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:05" (1/1) ... [2024-11-12 12:13:05,674 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 12:13:05,675 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 12:13:05,675 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 12:13:05,676 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 12:13:05,676 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:05" (1/1) ... [2024-11-12 12:13:05,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:13:05,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:13:05,714 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) [2024-11-12 12:13:05,717 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 [2024-11-12 12:13:05,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-12 12:13:05,768 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-12 12:13:05,768 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-12 12:13:05,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-12 12:13:05,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 12:13:05,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 12:13:05,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 12:13:05,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-12 12:13:05,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 12:13:05,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 12:13:05,771 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 12:13:05,940 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 12:13:05,942 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 12:13:06,304 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 12:13:06,304 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 12:13:06,473 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 12:13:06,474 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-12 12:13:06,474 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:13:06 BoogieIcfgContainer [2024-11-12 12:13:06,475 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 12:13:06,477 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 12:13:06,478 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 12:13:06,481 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 12:13:06,481 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:13:04" (1/3) ... [2024-11-12 12:13:06,482 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ef03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:13:06, skipping insertion in model container [2024-11-12 12:13:06,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:05" (2/3) ... [2024-11-12 12:13:06,483 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ef03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:13:06, skipping insertion in model container [2024-11-12 12:13:06,484 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:13:06" (3/3) ... [2024-11-12 12:13:06,485 INFO L112 eAbstractionObserver]: Analyzing ICFG 48_ticket_lock_low_contention_vs-b.i [2024-11-12 12:13:06,504 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 12:13:06,505 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2024-11-12 12:13:06,505 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 12:13:06,591 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-12 12:13:06,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 156 transitions, 316 flow [2024-11-12 12:13:06,744 INFO L124 PetriNetUnfolderBase]: 14/237 cut-off events. [2024-11-12 12:13:06,745 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:13:06,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 237 events. 14/237 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 805 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 142. Up to 4 conditions per place. [2024-11-12 12:13:06,755 INFO L82 GeneralOperation]: Start removeDead. Operand has 150 places, 156 transitions, 316 flow [2024-11-12 12:13:06,763 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 150 places, 156 transitions, 316 flow [2024-11-12 12:13:06,777 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:13:06,786 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;@59945c0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:13:06,787 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2024-11-12 12:13:06,796 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:13:06,800 INFO L124 PetriNetUnfolderBase]: 1/27 cut-off events. [2024-11-12 12:13:06,800 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:13:06,800 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:13:06,801 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:13:06,802 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-11-12 12:13:06,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:13:06,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1265999894, now seen corresponding path program 1 times [2024-11-12 12:13:06,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:13:06,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087086399] [2024-11-12 12:13:06,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:13:06,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:13:06,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:13:06,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:13:06,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:13:06,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087086399] [2024-11-12 12:13:06,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087086399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:13:06,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:13:06,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:13:06,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979893965] [2024-11-12 12:13:06,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:13:07,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-12 12:13:07,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:13:07,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 12:13:07,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 12:13:07,057 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 156 [2024-11-12 12:13:07,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 156 transitions, 316 flow. Second operand has 2 states, 2 states have (on average 135.0) internal successors, (270), 2 states have internal predecessors, (270), 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) [2024-11-12 12:13:07,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:13:07,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 156 [2024-11-12 12:13:07,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:13:07,149 INFO L124 PetriNetUnfolderBase]: 5/255 cut-off events. [2024-11-12 12:13:07,149 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 12:13:07,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 255 events. 5/255 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 780 event pairs, 1 based on Foata normal form. 16/232 useless extension candidates. Maximal degree in co-relation 175. Up to 7 conditions per place. [2024-11-12 12:13:07,155 INFO L140 encePairwiseOnDemand]: 139/156 looper letters, 3 selfloop transitions, 0 changer transitions 0/135 dead transitions. [2024-11-12 12:13:07,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 135 transitions, 280 flow [2024-11-12 12:13:07,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 12:13:07,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-12 12:13:07,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 288 transitions. [2024-11-12 12:13:07,169 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9230769230769231 [2024-11-12 12:13:07,172 INFO L175 Difference]: Start difference. First operand has 150 places, 156 transitions, 316 flow. Second operand 2 states and 288 transitions. [2024-11-12 12:13:07,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 135 transitions, 280 flow [2024-11-12 12:13:07,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 135 transitions, 280 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:13:07,183 INFO L231 Difference]: Finished difference. Result has 137 places, 135 transitions, 274 flow [2024-11-12 12:13:07,186 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=274, PETRI_PLACES=137, PETRI_TRANSITIONS=135} [2024-11-12 12:13:07,193 INFO L279 CegarLoopForPetriNet]: 150 programPoint places, -13 predicate places. [2024-11-12 12:13:07,193 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 135 transitions, 274 flow [2024-11-12 12:13:07,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 135.0) internal successors, (270), 2 states have internal predecessors, (270), 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) [2024-11-12 12:13:07,194 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:13:07,194 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:13:07,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 12:13:07,195 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-11-12 12:13:07,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:13:07,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1111083144, now seen corresponding path program 1 times [2024-11-12 12:13:07,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:13:07,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159578831] [2024-11-12 12:13:07,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:13:07,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:13:07,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:13:07,245 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 12:13:07,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:13:07,287 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 12:13:07,293 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 12:13:07,296 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 37 remaining) [2024-11-12 12:13:07,298 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2024-11-12 12:13:07,298 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2024-11-12 12:13:07,299 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2024-11-12 12:13:07,299 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2024-11-12 12:13:07,299 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2024-11-12 12:13:07,300 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 37 remaining) [2024-11-12 12:13:07,300 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2024-11-12 12:13:07,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2024-11-12 12:13:07,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2024-11-12 12:13:07,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2024-11-12 12:13:07,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2024-11-12 12:13:07,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2024-11-12 12:13:07,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2024-11-12 12:13:07,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2024-11-12 12:13:07,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2024-11-12 12:13:07,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2024-11-12 12:13:07,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2024-11-12 12:13:07,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2024-11-12 12:13:07,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2024-11-12 12:13:07,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2024-11-12 12:13:07,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (15 of 37 remaining) [2024-11-12 12:13:07,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2024-11-12 12:13:07,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2024-11-12 12:13:07,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2024-11-12 12:13:07,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2024-11-12 12:13:07,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2024-11-12 12:13:07,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2024-11-12 12:13:07,307 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2024-11-12 12:13:07,308 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2024-11-12 12:13:07,308 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2024-11-12 12:13:07,308 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2024-11-12 12:13:07,308 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2024-11-12 12:13:07,308 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2024-11-12 12:13:07,309 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2024-11-12 12:13:07,309 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2024-11-12 12:13:07,309 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2024-11-12 12:13:07,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 12:13:07,310 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-12 12:13:07,313 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 12:13:07,313 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-12 12:13:07,383 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-12 12:13:07,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 210 places, 218 transitions, 446 flow [2024-11-12 12:13:07,478 INFO L124 PetriNetUnfolderBase]: 23/380 cut-off events. [2024-11-12 12:13:07,479 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-12 12:13:07,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 380 events. 23/380 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1695 event pairs, 0 based on Foata normal form. 0/294 useless extension candidates. Maximal degree in co-relation 238. Up to 6 conditions per place. [2024-11-12 12:13:07,490 INFO L82 GeneralOperation]: Start removeDead. Operand has 210 places, 218 transitions, 446 flow [2024-11-12 12:13:07,499 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 210 places, 218 transitions, 446 flow [2024-11-12 12:13:07,502 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:13:07,503 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;@59945c0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:13:07,506 INFO L334 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2024-11-12 12:13:07,509 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:13:07,510 INFO L124 PetriNetUnfolderBase]: 1/27 cut-off events. [2024-11-12 12:13:07,510 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:13:07,511 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:13:07,511 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:13:07,512 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-12 12:13:07,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:13:07,513 INFO L85 PathProgramCache]: Analyzing trace with hash 872190896, now seen corresponding path program 1 times [2024-11-12 12:13:07,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:13:07,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972953244] [2024-11-12 12:13:07,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:13:07,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:13:07,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:13:07,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:13:07,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:13:07,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972953244] [2024-11-12 12:13:07,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972953244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:13:07,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:13:07,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:13:07,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795813507] [2024-11-12 12:13:07,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:13:07,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-12 12:13:07,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:13:07,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 12:13:07,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 12:13:07,582 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 218 [2024-11-12 12:13:07,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 218 transitions, 446 flow. Second operand has 2 states, 2 states have (on average 186.0) internal successors, (372), 2 states have internal predecessors, (372), 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) [2024-11-12 12:13:07,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:13:07,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 218 [2024-11-12 12:13:07,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:13:07,741 INFO L124 PetriNetUnfolderBase]: 18/628 cut-off events. [2024-11-12 12:13:07,741 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-12 12:13:07,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 660 conditions, 628 events. 18/628 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3571 event pairs, 7 based on Foata normal form. 46/567 useless extension candidates. Maximal degree in co-relation 385. Up to 21 conditions per place. [2024-11-12 12:13:07,749 INFO L140 encePairwiseOnDemand]: 193/218 looper letters, 5 selfloop transitions, 0 changer transitions 0/187 dead transitions. [2024-11-12 12:13:07,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 187 transitions, 394 flow [2024-11-12 12:13:07,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 12:13:07,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-12 12:13:07,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 400 transitions. [2024-11-12 12:13:07,756 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9174311926605505 [2024-11-12 12:13:07,759 INFO L175 Difference]: Start difference. First operand has 210 places, 218 transitions, 446 flow. Second operand 2 states and 400 transitions. [2024-11-12 12:13:07,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 187 transitions, 394 flow [2024-11-12 12:13:07,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 187 transitions, 394 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:13:07,763 INFO L231 Difference]: Finished difference. Result has 190 places, 187 transitions, 384 flow [2024-11-12 12:13:07,765 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=384, PETRI_PLACES=190, PETRI_TRANSITIONS=187} [2024-11-12 12:13:07,765 INFO L279 CegarLoopForPetriNet]: 210 programPoint places, -20 predicate places. [2024-11-12 12:13:07,766 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 187 transitions, 384 flow [2024-11-12 12:13:07,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 186.0) internal successors, (372), 2 states have internal predecessors, (372), 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) [2024-11-12 12:13:07,766 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:13:07,766 INFO L206 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] [2024-11-12 12:13:07,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 12:13:07,767 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-12 12:13:07,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:13:07,767 INFO L85 PathProgramCache]: Analyzing trace with hash 335312196, now seen corresponding path program 1 times [2024-11-12 12:13:07,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:13:07,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800748032] [2024-11-12 12:13:07,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:13:07,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:13:07,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:13:08,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:13:08,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:13:08,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800748032] [2024-11-12 12:13:08,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800748032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:13:08,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:13:08,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:13:08,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124305349] [2024-11-12 12:13:08,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:13:08,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:13:08,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:13:08,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:13:08,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:13:08,571 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 218 [2024-11-12 12:13:08,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 187 transitions, 384 flow. Second operand has 6 states, 6 states have (on average 176.33333333333334) internal successors, (1058), 6 states have internal predecessors, (1058), 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) [2024-11-12 12:13:08,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:13:08,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 218 [2024-11-12 12:13:08,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:13:09,026 INFO L124 PetriNetUnfolderBase]: 134/2680 cut-off events. [2024-11-12 12:13:09,027 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-12 12:13:09,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2904 conditions, 2680 events. 134/2680 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 24274 event pairs, 33 based on Foata normal form. 0/2214 useless extension candidates. Maximal degree in co-relation 2899. Up to 141 conditions per place. [2024-11-12 12:13:09,064 INFO L140 encePairwiseOnDemand]: 209/218 looper letters, 18 selfloop transitions, 14 changer transitions 0/204 dead transitions. [2024-11-12 12:13:09,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 204 transitions, 482 flow [2024-11-12 12:13:09,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:13:09,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:13:09,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1083 transitions. [2024-11-12 12:13:09,097 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8279816513761468 [2024-11-12 12:13:09,097 INFO L175 Difference]: Start difference. First operand has 190 places, 187 transitions, 384 flow. Second operand 6 states and 1083 transitions. [2024-11-12 12:13:09,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 204 transitions, 482 flow [2024-11-12 12:13:09,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 204 transitions, 482 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:13:09,103 INFO L231 Difference]: Finished difference. Result has 200 places, 201 transitions, 486 flow [2024-11-12 12:13:09,104 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=486, PETRI_PLACES=200, PETRI_TRANSITIONS=201} [2024-11-12 12:13:09,104 INFO L279 CegarLoopForPetriNet]: 210 programPoint places, -10 predicate places. [2024-11-12 12:13:09,105 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 201 transitions, 486 flow [2024-11-12 12:13:09,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 176.33333333333334) internal successors, (1058), 6 states have internal predecessors, (1058), 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) [2024-11-12 12:13:09,105 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:13:09,106 INFO L206 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] [2024-11-12 12:13:09,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 12:13:09,106 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-12 12:13:09,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:13:09,107 INFO L85 PathProgramCache]: Analyzing trace with hash -94538543, now seen corresponding path program 1 times [2024-11-12 12:13:09,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:13:09,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284466604] [2024-11-12 12:13:09,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:13:09,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:13:09,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:13:09,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:13:09,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:13:09,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284466604] [2024-11-12 12:13:09,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284466604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:13:09,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:13:09,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:13:09,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978808901] [2024-11-12 12:13:09,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:13:09,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:13:09,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:13:09,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:13:09,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:13:09,611 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 218 [2024-11-12 12:13:09,613 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 201 transitions, 486 flow. Second operand has 6 states, 6 states have (on average 178.33333333333334) internal successors, (1070), 6 states have internal predecessors, (1070), 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) [2024-11-12 12:13:09,613 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:13:09,613 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 218 [2024-11-12 12:13:09,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:13:10,395 INFO L124 PetriNetUnfolderBase]: 424/5479 cut-off events. [2024-11-12 12:13:10,396 INFO L125 PetriNetUnfolderBase]: For 551/587 co-relation queries the response was YES. [2024-11-12 12:13:10,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6940 conditions, 5479 events. 424/5479 cut-off events. For 551/587 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 59225 event pairs, 36 based on Foata normal form. 0/4584 useless extension candidates. Maximal degree in co-relation 6930. Up to 366 conditions per place. [2024-11-12 12:13:10,477 INFO L140 encePairwiseOnDemand]: 209/218 looper letters, 28 selfloop transitions, 30 changer transitions 0/238 dead transitions. [2024-11-12 12:13:10,477 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 238 transitions, 768 flow [2024-11-12 12:13:10,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:13:10,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:13:10,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1097 transitions. [2024-11-12 12:13:10,481 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8386850152905199 [2024-11-12 12:13:10,481 INFO L175 Difference]: Start difference. First operand has 200 places, 201 transitions, 486 flow. Second operand 6 states and 1097 transitions. [2024-11-12 12:13:10,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 238 transitions, 768 flow [2024-11-12 12:13:10,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 238 transitions, 768 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:13:10,491 INFO L231 Difference]: Finished difference. Result has 210 places, 231 transitions, 764 flow [2024-11-12 12:13:10,491 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=764, PETRI_PLACES=210, PETRI_TRANSITIONS=231} [2024-11-12 12:13:10,492 INFO L279 CegarLoopForPetriNet]: 210 programPoint places, 0 predicate places. [2024-11-12 12:13:10,492 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 231 transitions, 764 flow [2024-11-12 12:13:10,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 178.33333333333334) internal successors, (1070), 6 states have internal predecessors, (1070), 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) [2024-11-12 12:13:10,493 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:13:10,494 INFO L206 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] [2024-11-12 12:13:10,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 12:13:10,494 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-12 12:13:10,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:13:10,495 INFO L85 PathProgramCache]: Analyzing trace with hash 112493558, now seen corresponding path program 1 times [2024-11-12 12:13:10,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:13:10,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598779936] [2024-11-12 12:13:10,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:13:10,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:13:10,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:13:10,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:13:10,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:13:10,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598779936] [2024-11-12 12:13:10,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598779936] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:13:10,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:13:10,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:13:10,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111755440] [2024-11-12 12:13:10,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:13:10,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:13:10,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:13:10,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:13:10,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:13:10,600 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 218 [2024-11-12 12:13:10,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 231 transitions, 764 flow. Second operand has 3 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:13:10,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:13:10,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 218 [2024-11-12 12:13:10,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:13:14,579 INFO L124 PetriNetUnfolderBase]: 4605/30419 cut-off events. [2024-11-12 12:13:14,580 INFO L125 PetriNetUnfolderBase]: For 5521/5680 co-relation queries the response was YES. [2024-11-12 12:13:14,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43255 conditions, 30419 events. 4605/30419 cut-off events. For 5521/5680 co-relation queries the response was YES. Maximal size of possible extension queue 752. Compared 434511 event pairs, 1493 based on Foata normal form. 3/26051 useless extension candidates. Maximal degree in co-relation 43240. Up to 5422 conditions per place. [2024-11-12 12:13:14,902 INFO L140 encePairwiseOnDemand]: 197/218 looper letters, 94 selfloop transitions, 15 changer transitions 0/282 dead transitions. [2024-11-12 12:13:14,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 282 transitions, 1305 flow [2024-11-12 12:13:14,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:13:14,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:13:14,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 543 transitions. [2024-11-12 12:13:14,905 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8302752293577982 [2024-11-12 12:13:14,905 INFO L175 Difference]: Start difference. First operand has 210 places, 231 transitions, 764 flow. Second operand 3 states and 543 transitions. [2024-11-12 12:13:14,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 282 transitions, 1305 flow [2024-11-12 12:13:14,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 282 transitions, 1305 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:13:14,926 INFO L231 Difference]: Finished difference. Result has 214 places, 246 transitions, 896 flow [2024-11-12 12:13:14,927 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=218, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=896, PETRI_PLACES=214, PETRI_TRANSITIONS=246} [2024-11-12 12:13:14,929 INFO L279 CegarLoopForPetriNet]: 210 programPoint places, 4 predicate places. [2024-11-12 12:13:14,930 INFO L471 AbstractCegarLoop]: Abstraction has has 214 places, 246 transitions, 896 flow [2024-11-12 12:13:14,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:13:14,930 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:13:14,931 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:13:14,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 12:13:14,931 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-12 12:13:14,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:13:14,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1541511447, now seen corresponding path program 1 times [2024-11-12 12:13:14,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:13:14,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847437640] [2024-11-12 12:13:14,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:13:14,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:13:14,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:13:14,945 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 12:13:14,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:13:14,963 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 12:13:14,964 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 12:13:14,965 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2024-11-12 12:13:14,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2024-11-12 12:13:14,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2024-11-12 12:13:14,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2024-11-12 12:13:14,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2024-11-12 12:13:14,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2024-11-12 12:13:14,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining) [2024-11-12 12:13:14,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2024-11-12 12:13:14,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2024-11-12 12:13:14,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2024-11-12 12:13:14,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2024-11-12 12:13:14,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2024-11-12 12:13:14,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2024-11-12 12:13:14,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2024-11-12 12:13:14,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2024-11-12 12:13:14,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2024-11-12 12:13:14,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2024-11-12 12:13:14,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2024-11-12 12:13:14,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2024-11-12 12:13:14,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2024-11-12 12:13:14,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2024-11-12 12:13:14,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2024-11-12 12:13:14,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2024-11-12 12:13:14,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2024-11-12 12:13:14,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2024-11-12 12:13:14,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2024-11-12 12:13:14,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2024-11-12 12:13:14,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2024-11-12 12:13:14,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2024-11-12 12:13:14,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2024-11-12 12:13:14,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2024-11-12 12:13:14,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2024-11-12 12:13:14,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2024-11-12 12:13:14,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2024-11-12 12:13:14,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2024-11-12 12:13:14,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2024-11-12 12:13:14,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2024-11-12 12:13:14,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2024-11-12 12:13:14,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2024-11-12 12:13:14,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2024-11-12 12:13:14,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2024-11-12 12:13:14,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2024-11-12 12:13:14,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2024-11-12 12:13:14,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2024-11-12 12:13:14,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2024-11-12 12:13:14,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2024-11-12 12:13:14,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2024-11-12 12:13:14,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2024-11-12 12:13:14,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2024-11-12 12:13:14,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 12:13:14,974 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-12 12:13:14,975 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 12:13:14,975 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-12 12:13:15,037 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-12 12:13:15,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 270 places, 280 transitions, 578 flow [2024-11-12 12:13:15,116 INFO L124 PetriNetUnfolderBase]: 32/523 cut-off events. [2024-11-12 12:13:15,116 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-12 12:13:15,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 536 conditions, 523 events. 32/523 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2683 event pairs, 0 based on Foata normal form. 0/403 useless extension candidates. Maximal degree in co-relation 384. Up to 8 conditions per place. [2024-11-12 12:13:15,125 INFO L82 GeneralOperation]: Start removeDead. Operand has 270 places, 280 transitions, 578 flow [2024-11-12 12:13:15,134 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 270 places, 280 transitions, 578 flow [2024-11-12 12:13:15,136 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:13:15,137 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;@59945c0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:13:15,138 INFO L334 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2024-11-12 12:13:15,140 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:13:15,142 INFO L124 PetriNetUnfolderBase]: 1/27 cut-off events. [2024-11-12 12:13:15,143 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:13:15,143 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:13:15,143 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:13:15,143 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-12 12:13:15,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:13:15,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1351465416, now seen corresponding path program 1 times [2024-11-12 12:13:15,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:13:15,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492130852] [2024-11-12 12:13:15,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:13:15,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:13:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:13:15,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:13:15,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:13:15,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492130852] [2024-11-12 12:13:15,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492130852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:13:15,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:13:15,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:13:15,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681060972] [2024-11-12 12:13:15,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:13:15,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-12 12:13:15,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:13:15,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 12:13:15,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 12:13:15,159 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 280 [2024-11-12 12:13:15,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 280 transitions, 578 flow. Second operand has 2 states, 2 states have (on average 237.0) internal successors, (474), 2 states have internal predecessors, (474), 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) [2024-11-12 12:13:15,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:13:15,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 280 [2024-11-12 12:13:15,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:13:15,469 INFO L124 PetriNetUnfolderBase]: 53/1407 cut-off events. [2024-11-12 12:13:15,469 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-11-12 12:13:15,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1492 conditions, 1407 events. 53/1407 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 11149 event pairs, 27 based on Foata normal form. 116/1271 useless extension candidates. Maximal degree in co-relation 811. Up to 57 conditions per place. [2024-11-12 12:13:15,496 INFO L140 encePairwiseOnDemand]: 247/280 looper letters, 7 selfloop transitions, 0 changer transitions 0/239 dead transitions. [2024-11-12 12:13:15,496 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 239 transitions, 510 flow [2024-11-12 12:13:15,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 12:13:15,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-12 12:13:15,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 512 transitions. [2024-11-12 12:13:15,498 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9142857142857143 [2024-11-12 12:13:15,499 INFO L175 Difference]: Start difference. First operand has 270 places, 280 transitions, 578 flow. Second operand 2 states and 512 transitions. [2024-11-12 12:13:15,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 239 transitions, 510 flow [2024-11-12 12:13:15,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 239 transitions, 508 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-12 12:13:15,503 INFO L231 Difference]: Finished difference. Result has 243 places, 239 transitions, 494 flow [2024-11-12 12:13:15,503 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=494, PETRI_PLACES=243, PETRI_TRANSITIONS=239} [2024-11-12 12:13:15,506 INFO L279 CegarLoopForPetriNet]: 270 programPoint places, -27 predicate places. [2024-11-12 12:13:15,506 INFO L471 AbstractCegarLoop]: Abstraction has has 243 places, 239 transitions, 494 flow [2024-11-12 12:13:15,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 237.0) internal successors, (474), 2 states have internal predecessors, (474), 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) [2024-11-12 12:13:15,506 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:13:15,507 INFO L206 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] [2024-11-12 12:13:15,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 12:13:15,507 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-12 12:13:15,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:13:15,508 INFO L85 PathProgramCache]: Analyzing trace with hash -354017468, now seen corresponding path program 1 times [2024-11-12 12:13:15,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:13:15,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338976599] [2024-11-12 12:13:15,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:13:15,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:13:15,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:13:15,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:13:15,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:13:15,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338976599] [2024-11-12 12:13:15,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338976599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:13:15,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:13:15,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:13:15,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793393124] [2024-11-12 12:13:15,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:13:15,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:13:15,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:13:15,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:13:15,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:13:15,990 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 280 [2024-11-12 12:13:15,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 239 transitions, 494 flow. Second operand has 6 states, 6 states have (on average 227.33333333333334) internal successors, (1364), 6 states have internal predecessors, (1364), 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) [2024-11-12 12:13:15,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:13:15,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 280 [2024-11-12 12:13:15,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:13:17,203 INFO L124 PetriNetUnfolderBase]: 444/7105 cut-off events. [2024-11-12 12:13:17,204 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-11-12 12:13:17,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7729 conditions, 7105 events. 444/7105 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 81815 event pairs, 131 based on Foata normal form. 0/5860 useless extension candidates. Maximal degree in co-relation 7723. Up to 442 conditions per place. [2024-11-12 12:13:17,332 INFO L140 encePairwiseOnDemand]: 270/280 looper letters, 20 selfloop transitions, 18 changer transitions 0/260 dead transitions. [2024-11-12 12:13:17,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 260 transitions, 612 flow [2024-11-12 12:13:17,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:13:17,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:13:17,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1395 transitions. [2024-11-12 12:13:17,337 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8303571428571429 [2024-11-12 12:13:17,337 INFO L175 Difference]: Start difference. First operand has 243 places, 239 transitions, 494 flow. Second operand 6 states and 1395 transitions. [2024-11-12 12:13:17,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 260 transitions, 612 flow [2024-11-12 12:13:17,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 260 transitions, 612 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:13:17,342 INFO L231 Difference]: Finished difference. Result has 253 places, 257 transitions, 622 flow [2024-11-12 12:13:17,343 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=622, PETRI_PLACES=253, PETRI_TRANSITIONS=257} [2024-11-12 12:13:17,344 INFO L279 CegarLoopForPetriNet]: 270 programPoint places, -17 predicate places. [2024-11-12 12:13:17,344 INFO L471 AbstractCegarLoop]: Abstraction has has 253 places, 257 transitions, 622 flow [2024-11-12 12:13:17,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 227.33333333333334) internal successors, (1364), 6 states have internal predecessors, (1364), 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) [2024-11-12 12:13:17,345 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:13:17,345 INFO L206 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] [2024-11-12 12:13:17,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 12:13:17,346 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-12 12:13:17,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:13:17,347 INFO L85 PathProgramCache]: Analyzing trace with hash 908656716, now seen corresponding path program 1 times [2024-11-12 12:13:17,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:13:17,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973605269] [2024-11-12 12:13:17,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:13:17,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:13:17,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:13:17,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:13:17,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:13:17,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973605269] [2024-11-12 12:13:17,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973605269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:13:17,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:13:17,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:13:17,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286023014] [2024-11-12 12:13:17,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:13:17,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:13:17,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:13:17,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:13:17,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:13:17,795 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 280 [2024-11-12 12:13:17,797 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 257 transitions, 622 flow. Second operand has 6 states, 6 states have (on average 229.33333333333334) internal successors, (1376), 6 states have internal predecessors, (1376), 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) [2024-11-12 12:13:17,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:13:17,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 280 [2024-11-12 12:13:17,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:13:20,724 INFO L124 PetriNetUnfolderBase]: 1843/18400 cut-off events. [2024-11-12 12:13:20,724 INFO L125 PetriNetUnfolderBase]: For 2485/2593 co-relation queries the response was YES. [2024-11-12 12:13:20,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23689 conditions, 18400 events. 1843/18400 cut-off events. For 2485/2593 co-relation queries the response was YES. Maximal size of possible extension queue 430. Compared 249960 event pairs, 169 based on Foata normal form. 0/15321 useless extension candidates. Maximal degree in co-relation 23678. Up to 1595 conditions per place. [2024-11-12 12:13:20,969 INFO L140 encePairwiseOnDemand]: 270/280 looper letters, 38 selfloop transitions, 50 changer transitions 0/318 dead transitions. [2024-11-12 12:13:20,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 318 transitions, 1104 flow [2024-11-12 12:13:20,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:13:20,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:13:20,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1413 transitions. [2024-11-12 12:13:20,974 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8410714285714286 [2024-11-12 12:13:20,974 INFO L175 Difference]: Start difference. First operand has 253 places, 257 transitions, 622 flow. Second operand 6 states and 1413 transitions. [2024-11-12 12:13:20,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 318 transitions, 1104 flow [2024-11-12 12:13:20,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 318 transitions, 1104 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:13:20,990 INFO L231 Difference]: Finished difference. Result has 263 places, 307 transitions, 1102 flow [2024-11-12 12:13:20,990 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=622, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1102, PETRI_PLACES=263, PETRI_TRANSITIONS=307} [2024-11-12 12:13:20,991 INFO L279 CegarLoopForPetriNet]: 270 programPoint places, -7 predicate places. [2024-11-12 12:13:20,991 INFO L471 AbstractCegarLoop]: Abstraction has has 263 places, 307 transitions, 1102 flow [2024-11-12 12:13:20,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 229.33333333333334) internal successors, (1376), 6 states have internal predecessors, (1376), 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) [2024-11-12 12:13:20,994 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:13:20,994 INFO L206 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] [2024-11-12 12:13:20,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-12 12:13:20,995 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-12 12:13:20,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:13:20,995 INFO L85 PathProgramCache]: Analyzing trace with hash -908341002, now seen corresponding path program 1 times [2024-11-12 12:13:20,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:13:20,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809463775] [2024-11-12 12:13:20,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:13:20,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:13:21,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:13:21,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:13:21,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:13:21,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809463775] [2024-11-12 12:13:21,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809463775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:13:21,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:13:21,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:13:21,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420010430] [2024-11-12 12:13:21,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:13:21,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:13:21,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:13:21,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:13:21,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:13:21,078 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 280 [2024-11-12 12:13:21,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 307 transitions, 1102 flow. Second operand has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 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) [2024-11-12 12:13:21,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:13:21,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 280 [2024-11-12 12:13:21,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand