./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3061b6dc 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-divine/ring_1w1r-1.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 3a956b76a4ba98ce13df4d83ef2fb7ffa0973225ecb152c14bcfbb55b6546601 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 05:47:22,777 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 05:47:22,842 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-19 05:47:22,845 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 05:47:22,846 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 05:47:22,869 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 05:47:22,870 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 05:47:22,870 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 05:47:22,871 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 05:47:22,871 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 05:47:22,871 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 05:47:22,872 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 05:47:22,872 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 05:47:22,872 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 05:47:22,872 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 05:47:22,873 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 05:47:22,873 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 05:47:22,873 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 05:47:22,873 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 05:47:22,874 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 05:47:22,874 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 05:47:22,874 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 05:47:22,875 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-19 05:47:22,875 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 05:47:22,875 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 05:47:22,875 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 05:47:22,876 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 05:47:22,876 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 05:47:22,880 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 05:47:22,880 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 05:47:22,881 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 05:47:22,881 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:47:22,881 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 05:47:22,881 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 05:47:22,881 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 05:47:22,881 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 05:47:22,881 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 05:47:22,882 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 05:47:22,882 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 05:47:22,882 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 05:47:22,882 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 05:47:22,883 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a956b76a4ba98ce13df4d83ef2fb7ffa0973225ecb152c14bcfbb55b6546601 [2024-11-19 05:47:23,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 05:47:23,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 05:47:23,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 05:47:23,150 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 05:47:23,150 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 05:47:23,151 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i [2024-11-19 05:47:24,493 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 05:47:24,722 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 05:47:24,723 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i [2024-11-19 05:47:24,743 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20782baaf/36f7bf76a3c34715a3f88d79af715b72/FLAGd0d6247e8 [2024-11-19 05:47:24,762 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20782baaf/36f7bf76a3c34715a3f88d79af715b72 [2024-11-19 05:47:24,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 05:47:24,767 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 05:47:24,769 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 05:47:24,770 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 05:47:24,775 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 05:47:24,776 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:47:24" (1/1) ... [2024-11-19 05:47:24,777 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@302cfec1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:47:24, skipping insertion in model container [2024-11-19 05:47:24,779 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:47:24" (1/1) ... [2024-11-19 05:47:24,825 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 05:47:25,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:47:25,182 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 05:47:25,244 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:47:25,282 INFO L204 MainTranslator]: Completed translation [2024-11-19 05:47:25,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:47:25 WrapperNode [2024-11-19 05:47:25,282 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 05:47:25,283 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 05:47:25,283 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 05:47:25,284 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 05:47:25,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:47:25" (1/1) ... [2024-11-19 05:47:25,306 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:47:25" (1/1) ... [2024-11-19 05:47:25,341 INFO L138 Inliner]: procedures = 224, calls = 44, calls flagged for inlining = 16, calls inlined = 10, statements flattened = 197 [2024-11-19 05:47:25,342 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 05:47:25,342 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 05:47:25,343 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 05:47:25,343 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 05:47:25,356 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:47:25" (1/1) ... [2024-11-19 05:47:25,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:47:25" (1/1) ... [2024-11-19 05:47:25,367 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:47:25" (1/1) ... [2024-11-19 05:47:25,371 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:47:25" (1/1) ... [2024-11-19 05:47:25,393 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:47:25" (1/1) ... [2024-11-19 05:47:25,396 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:47:25" (1/1) ... [2024-11-19 05:47:25,398 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:47:25" (1/1) ... [2024-11-19 05:47:25,400 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:47:25" (1/1) ... [2024-11-19 05:47:25,403 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 05:47:25,422 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 05:47:25,422 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 05:47:25,422 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 05:47:25,423 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:47:25" (1/1) ... [2024-11-19 05:47:25,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:47:25,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:47:25,484 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) [2024-11-19 05:47:25,491 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 [2024-11-19 05:47:25,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 05:47:25,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 05:47:25,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-19 05:47:25,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-19 05:47:25,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 05:47:25,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 05:47:25,536 INFO L130 BoogieDeclarations]: Found specification of procedure reader_nowait_fn [2024-11-19 05:47:25,536 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_nowait_fn [2024-11-19 05:47:25,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 05:47:25,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 05:47:25,538 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 05:47:25,665 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 05:47:25,668 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 05:47:26,034 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 05:47:26,034 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 05:47:26,053 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 05:47:26,054 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-19 05:47:26,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:47:26 BoogieIcfgContainer [2024-11-19 05:47:26,055 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 05:47:26,056 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 05:47:26,056 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 05:47:26,059 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 05:47:26,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:47:24" (1/3) ... [2024-11-19 05:47:26,060 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d6a9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:47:26, skipping insertion in model container [2024-11-19 05:47:26,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:47:25" (2/3) ... [2024-11-19 05:47:26,060 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d6a9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:47:26, skipping insertion in model container [2024-11-19 05:47:26,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:47:26" (3/3) ... [2024-11-19 05:47:26,061 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_1w1r-1.i [2024-11-19 05:47:26,075 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 05:47:26,075 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-19 05:47:26,075 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 05:47:26,150 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-19 05:47:26,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 229 places, 237 transitions, 481 flow [2024-11-19 05:47:26,253 INFO L124 PetriNetUnfolderBase]: 12/236 cut-off events. [2024-11-19 05:47:26,253 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 05:47:26,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 236 events. 12/236 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 531 event pairs, 0 based on Foata normal form. 0/210 useless extension candidates. Maximal degree in co-relation 186. Up to 2 conditions per place. [2024-11-19 05:47:26,263 INFO L82 GeneralOperation]: Start removeDead. Operand has 229 places, 237 transitions, 481 flow [2024-11-19 05:47:26,273 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 222 places, 230 transitions, 463 flow [2024-11-19 05:47:26,284 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:47:26,294 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;@5eac6989, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:47:26,295 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-19 05:47:26,300 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:47:26,301 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-11-19 05:47:26,301 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:47:26,301 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:47:26,302 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:47:26,303 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-19 05:47:26,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:47:26,309 INFO L85 PathProgramCache]: Analyzing trace with hash 824070514, now seen corresponding path program 1 times [2024-11-19 05:47:26,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:47:26,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031767628] [2024-11-19 05:47:26,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:47:26,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:47:26,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:47:26,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:47:26,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:47:26,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031767628] [2024-11-19 05:47:26,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031767628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:47:26,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:47:26,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:47:26,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620777951] [2024-11-19 05:47:26,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:47:26,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:47:26,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:47:26,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:47:26,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:47:27,214 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 237 [2024-11-19 05:47:27,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 230 transitions, 463 flow. Second operand has 6 states, 6 states have (on average 168.33333333333334) internal successors, (1010), 6 states have internal predecessors, (1010), 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) [2024-11-19 05:47:27,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:47:27,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 237 [2024-11-19 05:47:27,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:47:27,708 INFO L124 PetriNetUnfolderBase]: 675/3079 cut-off events. [2024-11-19 05:47:27,708 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 05:47:27,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4374 conditions, 3079 events. 675/3079 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 24329 event pairs, 576 based on Foata normal form. 296/3069 useless extension candidates. Maximal degree in co-relation 4315. Up to 1286 conditions per place. [2024-11-19 05:47:27,732 INFO L140 encePairwiseOnDemand]: 222/237 looper letters, 54 selfloop transitions, 5 changer transitions 0/217 dead transitions. [2024-11-19 05:47:27,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 217 transitions, 555 flow [2024-11-19 05:47:27,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:47:27,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:47:27,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1071 transitions. [2024-11-19 05:47:27,753 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7531645569620253 [2024-11-19 05:47:27,755 INFO L175 Difference]: Start difference. First operand has 222 places, 230 transitions, 463 flow. Second operand 6 states and 1071 transitions. [2024-11-19 05:47:27,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 217 transitions, 555 flow [2024-11-19 05:47:27,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 217 transitions, 554 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:47:27,765 INFO L231 Difference]: Finished difference. Result has 222 places, 217 transitions, 446 flow [2024-11-19 05:47:27,767 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=446, PETRI_PLACES=222, PETRI_TRANSITIONS=217} [2024-11-19 05:47:27,773 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 0 predicate places. [2024-11-19 05:47:27,773 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 217 transitions, 446 flow [2024-11-19 05:47:27,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 168.33333333333334) internal successors, (1010), 6 states have internal predecessors, (1010), 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) [2024-11-19 05:47:27,774 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:47:27,774 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:47:27,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 05:47:27,775 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-19 05:47:27,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:47:27,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1711871567, now seen corresponding path program 1 times [2024-11-19 05:47:27,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:47:27,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309288969] [2024-11-19 05:47:27,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:47:27,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:47:27,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:47:28,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:47:28,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:47:28,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309288969] [2024-11-19 05:47:28,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309288969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:47:28,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:47:28,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:47:28,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523277984] [2024-11-19 05:47:28,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:47:28,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:47:28,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:47:28,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:47:28,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:47:28,342 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 237 [2024-11-19 05:47:28,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 217 transitions, 446 flow. Second operand has 6 states, 6 states have (on average 168.33333333333334) internal successors, (1010), 6 states have internal predecessors, (1010), 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) [2024-11-19 05:47:28,344 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:47:28,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 237 [2024-11-19 05:47:28,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:47:28,617 INFO L124 PetriNetUnfolderBase]: 675/3078 cut-off events. [2024-11-19 05:47:28,618 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:47:28,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4378 conditions, 3078 events. 675/3078 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 24264 event pairs, 576 based on Foata normal form. 0/2773 useless extension candidates. Maximal degree in co-relation 4327. Up to 1286 conditions per place. [2024-11-19 05:47:28,632 INFO L140 encePairwiseOnDemand]: 231/237 looper letters, 54 selfloop transitions, 5 changer transitions 0/216 dead transitions. [2024-11-19 05:47:28,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 216 transitions, 562 flow [2024-11-19 05:47:28,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:47:28,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:47:28,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1062 transitions. [2024-11-19 05:47:28,635 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7468354430379747 [2024-11-19 05:47:28,635 INFO L175 Difference]: Start difference. First operand has 222 places, 217 transitions, 446 flow. Second operand 6 states and 1062 transitions. [2024-11-19 05:47:28,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 216 transitions, 562 flow [2024-11-19 05:47:28,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 216 transitions, 552 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 05:47:28,642 INFO L231 Difference]: Finished difference. Result has 221 places, 216 transitions, 444 flow [2024-11-19 05:47:28,643 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=444, PETRI_PLACES=221, PETRI_TRANSITIONS=216} [2024-11-19 05:47:28,643 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, -1 predicate places. [2024-11-19 05:47:28,644 INFO L471 AbstractCegarLoop]: Abstraction has has 221 places, 216 transitions, 444 flow [2024-11-19 05:47:28,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 168.33333333333334) internal successors, (1010), 6 states have internal predecessors, (1010), 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) [2024-11-19 05:47:28,645 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:47:28,645 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:47:28,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 05:47:28,645 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-19 05:47:28,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:47:28,647 INFO L85 PathProgramCache]: Analyzing trace with hash -464323946, now seen corresponding path program 1 times [2024-11-19 05:47:28,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:47:28,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32187963] [2024-11-19 05:47:28,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:47:28,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:47:28,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:47:29,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:47:29,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:47:29,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32187963] [2024-11-19 05:47:29,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32187963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:47:29,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:47:29,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:47:29,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020396958] [2024-11-19 05:47:29,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:47:29,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:47:29,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:47:29,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:47:29,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:47:29,431 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 237 [2024-11-19 05:47:29,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 216 transitions, 444 flow. Second operand has 6 states, 6 states have (on average 192.66666666666666) internal successors, (1156), 6 states have internal predecessors, (1156), 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) [2024-11-19 05:47:29,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:47:29,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 237 [2024-11-19 05:47:29,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:47:29,748 INFO L124 PetriNetUnfolderBase]: 311/2118 cut-off events. [2024-11-19 05:47:29,749 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 05:47:29,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2717 conditions, 2118 events. 311/2118 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 14654 event pairs, 64 based on Foata normal form. 0/1898 useless extension candidates. Maximal degree in co-relation 2665. Up to 452 conditions per place. [2024-11-19 05:47:29,763 INFO L140 encePairwiseOnDemand]: 216/237 looper letters, 39 selfloop transitions, 43 changer transitions 0/261 dead transitions. [2024-11-19 05:47:29,763 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 261 transitions, 698 flow [2024-11-19 05:47:29,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:47:29,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:47:29,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1224 transitions. [2024-11-19 05:47:29,766 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8607594936708861 [2024-11-19 05:47:29,766 INFO L175 Difference]: Start difference. First operand has 221 places, 216 transitions, 444 flow. Second operand 6 states and 1224 transitions. [2024-11-19 05:47:29,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 261 transitions, 698 flow [2024-11-19 05:47:29,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 261 transitions, 688 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 05:47:29,773 INFO L231 Difference]: Finished difference. Result has 226 places, 258 transitions, 730 flow [2024-11-19 05:47:29,773 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=730, PETRI_PLACES=226, PETRI_TRANSITIONS=258} [2024-11-19 05:47:29,774 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 4 predicate places. [2024-11-19 05:47:29,775 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 258 transitions, 730 flow [2024-11-19 05:47:29,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.66666666666666) internal successors, (1156), 6 states have internal predecessors, (1156), 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) [2024-11-19 05:47:29,776 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:47:29,776 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:47:29,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 05:47:29,776 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-19 05:47:29,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:47:29,777 INFO L85 PathProgramCache]: Analyzing trace with hash -348864802, now seen corresponding path program 1 times [2024-11-19 05:47:29,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:47:29,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768704244] [2024-11-19 05:47:29,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:47:29,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:47:29,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:47:29,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:47:29,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:47:29,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768704244] [2024-11-19 05:47:29,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768704244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:47:29,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:47:29,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:47:29,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540319184] [2024-11-19 05:47:29,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:47:29,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:47:29,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:47:29,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:47:29,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:47:29,873 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2024-11-19 05:47:29,874 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 258 transitions, 730 flow. Second operand has 3 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 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) [2024-11-19 05:47:29,874 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:47:29,874 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2024-11-19 05:47:29,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:47:30,075 INFO L124 PetriNetUnfolderBase]: 297/2369 cut-off events. [2024-11-19 05:47:30,075 INFO L125 PetriNetUnfolderBase]: For 238/272 co-relation queries the response was YES. [2024-11-19 05:47:30,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3464 conditions, 2369 events. 297/2369 cut-off events. For 238/272 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 16877 event pairs, 16 based on Foata normal form. 1/2172 useless extension candidates. Maximal degree in co-relation 3412. Up to 342 conditions per place. [2024-11-19 05:47:30,091 INFO L140 encePairwiseOnDemand]: 234/237 looper letters, 3 selfloop transitions, 2 changer transitions 0/259 dead transitions. [2024-11-19 05:47:30,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 259 transitions, 742 flow [2024-11-19 05:47:30,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:47:30,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:47:30,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 675 transitions. [2024-11-19 05:47:30,094 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9493670886075949 [2024-11-19 05:47:30,094 INFO L175 Difference]: Start difference. First operand has 226 places, 258 transitions, 730 flow. Second operand 3 states and 675 transitions. [2024-11-19 05:47:30,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 259 transitions, 742 flow [2024-11-19 05:47:30,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 259 transitions, 742 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:47:30,100 INFO L231 Difference]: Finished difference. Result has 229 places, 259 transitions, 742 flow [2024-11-19 05:47:30,101 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=730, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=742, PETRI_PLACES=229, PETRI_TRANSITIONS=259} [2024-11-19 05:47:30,101 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 7 predicate places. [2024-11-19 05:47:30,102 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 259 transitions, 742 flow [2024-11-19 05:47:30,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 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) [2024-11-19 05:47:30,102 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:47:30,102 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:47:30,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 05:47:30,103 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-19 05:47:30,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:47:30,103 INFO L85 PathProgramCache]: Analyzing trace with hash -8247405, now seen corresponding path program 1 times [2024-11-19 05:47:30,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:47:30,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562396339] [2024-11-19 05:47:30,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:47:30,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:47:30,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:47:30,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:47:30,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:47:30,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562396339] [2024-11-19 05:47:30,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562396339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:47:30,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:47:30,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:47:30,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826664534] [2024-11-19 05:47:30,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:47:30,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:47:30,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:47:30,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:47:30,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:47:30,763 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 237 [2024-11-19 05:47:30,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 259 transitions, 742 flow. Second operand has 6 states, 6 states have (on average 186.66666666666666) internal successors, (1120), 6 states have internal predecessors, (1120), 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) [2024-11-19 05:47:30,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:47:30,765 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 237 [2024-11-19 05:47:30,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:47:31,367 INFO L124 PetriNetUnfolderBase]: 780/4989 cut-off events. [2024-11-19 05:47:31,368 INFO L125 PetriNetUnfolderBase]: For 1078/1245 co-relation queries the response was YES. [2024-11-19 05:47:31,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8236 conditions, 4989 events. 780/4989 cut-off events. For 1078/1245 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 43674 event pairs, 132 based on Foata normal form. 68/4724 useless extension candidates. Maximal degree in co-relation 8174. Up to 1061 conditions per place. [2024-11-19 05:47:31,399 INFO L140 encePairwiseOnDemand]: 213/237 looper letters, 81 selfloop transitions, 45 changer transitions 0/309 dead transitions. [2024-11-19 05:47:31,399 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 309 transitions, 1154 flow [2024-11-19 05:47:31,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:47:31,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:47:31,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1188 transitions. [2024-11-19 05:47:31,404 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8354430379746836 [2024-11-19 05:47:31,404 INFO L175 Difference]: Start difference. First operand has 229 places, 259 transitions, 742 flow. Second operand 6 states and 1188 transitions. [2024-11-19 05:47:31,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 309 transitions, 1154 flow [2024-11-19 05:47:31,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 309 transitions, 1152 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:47:31,411 INFO L231 Difference]: Finished difference. Result has 238 places, 303 transitions, 1132 flow [2024-11-19 05:47:31,412 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=740, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1132, PETRI_PLACES=238, PETRI_TRANSITIONS=303} [2024-11-19 05:47:31,412 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 16 predicate places. [2024-11-19 05:47:31,413 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 303 transitions, 1132 flow [2024-11-19 05:47:31,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 186.66666666666666) internal successors, (1120), 6 states have internal predecessors, (1120), 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) [2024-11-19 05:47:31,413 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:47:31,413 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:47:31,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 05:47:31,414 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-19 05:47:31,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:47:31,414 INFO L85 PathProgramCache]: Analyzing trace with hash -856788738, now seen corresponding path program 1 times [2024-11-19 05:47:31,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:47:31,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027348996] [2024-11-19 05:47:31,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:47:31,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:47:31,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:47:31,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:47:31,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:47:31,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027348996] [2024-11-19 05:47:31,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027348996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:47:31,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:47:31,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:47:31,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542020352] [2024-11-19 05:47:31,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:47:31,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:47:31,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:47:31,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:47:31,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:47:32,144 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 237 [2024-11-19 05:47:32,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 303 transitions, 1132 flow. Second operand has 6 states, 6 states have (on average 197.83333333333334) internal successors, (1187), 6 states have internal predecessors, (1187), 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) [2024-11-19 05:47:32,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:47:32,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 237 [2024-11-19 05:47:32,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:47:32,902 INFO L124 PetriNetUnfolderBase]: 1108/6651 cut-off events. [2024-11-19 05:47:32,903 INFO L125 PetriNetUnfolderBase]: For 5148/6037 co-relation queries the response was YES. [2024-11-19 05:47:32,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12895 conditions, 6651 events. 1108/6651 cut-off events. For 5148/6037 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 61362 event pairs, 156 based on Foata normal form. 167/6399 useless extension candidates. Maximal degree in co-relation 12829. Up to 1419 conditions per place. [2024-11-19 05:47:32,966 INFO L140 encePairwiseOnDemand]: 222/237 looper letters, 94 selfloop transitions, 78 changer transitions 0/380 dead transitions. [2024-11-19 05:47:32,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 380 transitions, 1934 flow [2024-11-19 05:47:32,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:47:32,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:47:32,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1240 transitions. [2024-11-19 05:47:32,971 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8720112517580872 [2024-11-19 05:47:32,972 INFO L175 Difference]: Start difference. First operand has 238 places, 303 transitions, 1132 flow. Second operand 6 states and 1240 transitions. [2024-11-19 05:47:32,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 380 transitions, 1934 flow [2024-11-19 05:47:32,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 380 transitions, 1934 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:47:32,997 INFO L231 Difference]: Finished difference. Result has 248 places, 380 transitions, 1950 flow [2024-11-19 05:47:32,998 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=1132, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1950, PETRI_PLACES=248, PETRI_TRANSITIONS=380} [2024-11-19 05:47:33,000 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 26 predicate places. [2024-11-19 05:47:33,001 INFO L471 AbstractCegarLoop]: Abstraction has has 248 places, 380 transitions, 1950 flow [2024-11-19 05:47:33,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 197.83333333333334) internal successors, (1187), 6 states have internal predecessors, (1187), 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) [2024-11-19 05:47:33,002 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:47:33,002 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:47:33,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 05:47:33,002 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-19 05:47:33,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:47:33,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1158210824, now seen corresponding path program 1 times [2024-11-19 05:47:33,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:47:33,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831851052] [2024-11-19 05:47:33,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:47:33,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:47:33,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:47:33,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:47:33,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:47:33,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831851052] [2024-11-19 05:47:33,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831851052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:47:33,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:47:33,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:47:33,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996516889] [2024-11-19 05:47:33,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:47:33,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:47:33,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:47:33,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:47:33,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:47:33,840 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 237 [2024-11-19 05:47:33,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 380 transitions, 1950 flow. Second operand has 6 states, 6 states have (on average 203.66666666666666) internal successors, (1222), 6 states have internal predecessors, (1222), 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) [2024-11-19 05:47:33,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:47:33,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 237 [2024-11-19 05:47:33,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:47:34,693 INFO L124 PetriNetUnfolderBase]: 1128/7187 cut-off events. [2024-11-19 05:47:34,693 INFO L125 PetriNetUnfolderBase]: For 7186/7956 co-relation queries the response was YES. [2024-11-19 05:47:34,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14883 conditions, 7187 events. 1128/7187 cut-off events. For 7186/7956 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 69043 event pairs, 107 based on Foata normal form. 192/6998 useless extension candidates. Maximal degree in co-relation 14812. Up to 1090 conditions per place. [2024-11-19 05:47:34,727 INFO L140 encePairwiseOnDemand]: 226/237 looper letters, 103 selfloop transitions, 66 changer transitions 0/445 dead transitions. [2024-11-19 05:47:34,727 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 445 transitions, 2720 flow [2024-11-19 05:47:34,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:47:34,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:47:34,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1258 transitions. [2024-11-19 05:47:34,731 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8846694796061885 [2024-11-19 05:47:34,731 INFO L175 Difference]: Start difference. First operand has 248 places, 380 transitions, 1950 flow. Second operand 6 states and 1258 transitions. [2024-11-19 05:47:34,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 445 transitions, 2720 flow [2024-11-19 05:47:34,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 445 transitions, 2720 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:47:34,747 INFO L231 Difference]: Finished difference. Result has 258 places, 442 transitions, 2712 flow [2024-11-19 05:47:34,749 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=1950, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=380, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2712, PETRI_PLACES=258, PETRI_TRANSITIONS=442} [2024-11-19 05:47:34,750 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 36 predicate places. [2024-11-19 05:47:34,750 INFO L471 AbstractCegarLoop]: Abstraction has has 258 places, 442 transitions, 2712 flow [2024-11-19 05:47:34,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 203.66666666666666) internal successors, (1222), 6 states have internal predecessors, (1222), 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) [2024-11-19 05:47:34,751 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:47:34,752 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:47:34,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 05:47:34,752 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reader_nowait_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-19 05:47:34,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:47:34,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1378030033, now seen corresponding path program 1 times [2024-11-19 05:47:34,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:47:34,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712412030] [2024-11-19 05:47:34,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:47:34,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:47:34,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:47:35,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:47:35,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:47:35,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712412030] [2024-11-19 05:47:35,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712412030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:47:35,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:47:35,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:47:35,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143118983] [2024-11-19 05:47:35,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:47:35,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:47:35,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:47:35,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:47:35,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:47:35,252 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 237 [2024-11-19 05:47:35,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 442 transitions, 2712 flow. Second operand has 6 states, 6 states have (on average 166.16666666666666) internal successors, (997), 6 states have internal predecessors, (997), 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) [2024-11-19 05:47:35,254 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:47:35,254 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 237 [2024-11-19 05:47:35,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:47:37,789 INFO L124 PetriNetUnfolderBase]: 5261/16665 cut-off events. [2024-11-19 05:47:37,789 INFO L125 PetriNetUnfolderBase]: For 19400/19700 co-relation queries the response was YES. [2024-11-19 05:47:37,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44613 conditions, 16665 events. 5261/16665 cut-off events. For 19400/19700 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 158396 event pairs, 2287 based on Foata normal form. 50/15799 useless extension candidates. Maximal degree in co-relation 44537. Up to 9666 conditions per place. [2024-11-19 05:47:37,900 INFO L140 encePairwiseOnDemand]: 206/237 looper letters, 260 selfloop transitions, 156 changer transitions 0/573 dead transitions. [2024-11-19 05:47:37,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 573 transitions, 4280 flow [2024-11-19 05:47:37,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:47:37,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:47:37,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1134 transitions. [2024-11-19 05:47:37,903 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7974683544303798 [2024-11-19 05:47:37,903 INFO L175 Difference]: Start difference. First operand has 258 places, 442 transitions, 2712 flow. Second operand 6 states and 1134 transitions. [2024-11-19 05:47:37,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 573 transitions, 4280 flow [2024-11-19 05:47:37,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 573 transitions, 4280 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:47:37,963 INFO L231 Difference]: Finished difference. Result has 268 places, 573 transitions, 4180 flow [2024-11-19 05:47:37,964 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=2712, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4180, PETRI_PLACES=268, PETRI_TRANSITIONS=573} [2024-11-19 05:47:37,964 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 46 predicate places. [2024-11-19 05:47:37,965 INFO L471 AbstractCegarLoop]: Abstraction has has 268 places, 573 transitions, 4180 flow [2024-11-19 05:47:37,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 166.16666666666666) internal successors, (997), 6 states have internal predecessors, (997), 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) [2024-11-19 05:47:37,966 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:47:37,966 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:47:37,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 05:47:37,966 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-19 05:47:37,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:47:37,967 INFO L85 PathProgramCache]: Analyzing trace with hash 481416421, now seen corresponding path program 1 times [2024-11-19 05:47:37,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:47:37,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841038384] [2024-11-19 05:47:37,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:47:37,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:47:37,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:47:38,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:47:38,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:47:38,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841038384] [2024-11-19 05:47:38,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841038384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:47:38,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:47:38,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:47:38,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89893405] [2024-11-19 05:47:38,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:47:38,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:47:38,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:47:38,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:47:38,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:47:38,508 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 237 [2024-11-19 05:47:38,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 573 transitions, 4180 flow. Second operand has 6 states, 6 states have (on average 166.0) internal successors, (996), 6 states have internal predecessors, (996), 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) [2024-11-19 05:47:38,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:47:38,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 237 [2024-11-19 05:47:38,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:47:41,261 INFO L124 PetriNetUnfolderBase]: 5567/17507 cut-off events. [2024-11-19 05:47:41,261 INFO L125 PetriNetUnfolderBase]: For 29328/29582 co-relation queries the response was YES. [2024-11-19 05:47:41,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52930 conditions, 17507 events. 5567/17507 cut-off events. For 29328/29582 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 167558 event pairs, 2232 based on Foata normal form. 12/16658 useless extension candidates. Maximal degree in co-relation 52849. Up to 9984 conditions per place. [2024-11-19 05:47:41,394 INFO L140 encePairwiseOnDemand]: 206/237 looper letters, 372 selfloop transitions, 167 changer transitions 0/700 dead transitions. [2024-11-19 05:47:41,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 700 transitions, 5924 flow [2024-11-19 05:47:41,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:47:41,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:47:41,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1134 transitions. [2024-11-19 05:47:41,399 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7974683544303798 [2024-11-19 05:47:41,399 INFO L175 Difference]: Start difference. First operand has 268 places, 573 transitions, 4180 flow. Second operand 6 states and 1134 transitions. [2024-11-19 05:47:41,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 700 transitions, 5924 flow [2024-11-19 05:47:41,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 700 transitions, 5692 flow, removed 116 selfloop flow, removed 0 redundant places. [2024-11-19 05:47:41,505 INFO L231 Difference]: Finished difference. Result has 278 places, 700 transitions, 5388 flow [2024-11-19 05:47:41,506 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=3960, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=573, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=481, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5388, PETRI_PLACES=278, PETRI_TRANSITIONS=700} [2024-11-19 05:47:41,506 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 56 predicate places. [2024-11-19 05:47:41,507 INFO L471 AbstractCegarLoop]: Abstraction has has 278 places, 700 transitions, 5388 flow [2024-11-19 05:47:41,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 166.0) internal successors, (996), 6 states have internal predecessors, (996), 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) [2024-11-19 05:47:41,508 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:47:41,508 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:47:41,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 05:47:41,508 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-19 05:47:41,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:47:41,509 INFO L85 PathProgramCache]: Analyzing trace with hash -61528390, now seen corresponding path program 1 times [2024-11-19 05:47:41,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:47:41,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910401747] [2024-11-19 05:47:41,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:47:41,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:47:41,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:47:44,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:47:44,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:47:44,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910401747] [2024-11-19 05:47:44,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910401747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:47:44,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:47:44,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-19 05:47:44,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428515143] [2024-11-19 05:47:44,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:47:44,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-19 05:47:44,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:47:44,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-19 05:47:44,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=477, Unknown=0, NotChecked=0, Total=552 [2024-11-19 05:47:48,029 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 237 [2024-11-19 05:47:48,033 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 700 transitions, 5388 flow. Second operand has 24 states, 24 states have (on average 155.66666666666666) internal successors, (3736), 24 states have internal predecessors, (3736), 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) [2024-11-19 05:47:48,033 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:47:48,033 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 237 [2024-11-19 05:47:48,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:47:53,995 INFO L124 PetriNetUnfolderBase]: 6299/25454 cut-off events. [2024-11-19 05:47:53,995 INFO L125 PetriNetUnfolderBase]: For 56546/58157 co-relation queries the response was YES. [2024-11-19 05:47:54,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75329 conditions, 25454 events. 6299/25454 cut-off events. For 56546/58157 co-relation queries the response was YES. Maximal size of possible extension queue 386. Compared 288951 event pairs, 825 based on Foata normal form. 329/24746 useless extension candidates. Maximal degree in co-relation 75235. Up to 7429 conditions per place. [2024-11-19 05:47:54,239 INFO L140 encePairwiseOnDemand]: 198/237 looper letters, 976 selfloop transitions, 193 changer transitions 0/1447 dead transitions. [2024-11-19 05:47:54,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 1447 transitions, 13948 flow [2024-11-19 05:47:54,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-19 05:47:54,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2024-11-19 05:47:54,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 5762 transitions. [2024-11-19 05:47:54,249 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6946353224834237 [2024-11-19 05:47:54,250 INFO L175 Difference]: Start difference. First operand has 278 places, 700 transitions, 5388 flow. Second operand 35 states and 5762 transitions. [2024-11-19 05:47:54,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 1447 transitions, 13948 flow [2024-11-19 05:47:54,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 1447 transitions, 13792 flow, removed 78 selfloop flow, removed 0 redundant places. [2024-11-19 05:47:54,432 INFO L231 Difference]: Finished difference. Result has 337 places, 901 transitions, 8389 flow [2024-11-19 05:47:54,434 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=5232, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=700, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=580, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=8389, PETRI_PLACES=337, PETRI_TRANSITIONS=901} [2024-11-19 05:47:54,434 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 115 predicate places. [2024-11-19 05:47:54,435 INFO L471 AbstractCegarLoop]: Abstraction has has 337 places, 901 transitions, 8389 flow [2024-11-19 05:47:54,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 155.66666666666666) internal successors, (3736), 24 states have internal predecessors, (3736), 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) [2024-11-19 05:47:54,436 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:47:54,437 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:47:54,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 05:47:54,437 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-19 05:47:54,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:47:54,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1605293912, now seen corresponding path program 2 times [2024-11-19 05:47:54,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:47:54,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400729659] [2024-11-19 05:47:54,439 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:47:54,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:47:54,460 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:47:54,464 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:47:56,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:47:56,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:47:56,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400729659] [2024-11-19 05:47:56,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400729659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:47:56,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:47:56,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-19 05:47:56,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412420192] [2024-11-19 05:47:56,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:47:56,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-19 05:47:56,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:47:56,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-19 05:47:56,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2024-11-19 05:47:59,837 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 237 [2024-11-19 05:47:59,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 901 transitions, 8389 flow. Second operand has 24 states, 24 states have (on average 155.66666666666666) internal successors, (3736), 24 states have internal predecessors, (3736), 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) [2024-11-19 05:47:59,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:47:59,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 237 [2024-11-19 05:47:59,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:48:07,177 INFO L124 PetriNetUnfolderBase]: 7808/30941 cut-off events. [2024-11-19 05:48:07,177 INFO L125 PetriNetUnfolderBase]: For 100275/102675 co-relation queries the response was YES. [2024-11-19 05:48:07,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101045 conditions, 30941 events. 7808/30941 cut-off events. For 100275/102675 co-relation queries the response was YES. Maximal size of possible extension queue 439. Compared 359930 event pairs, 1461 based on Foata normal form. 310/29916 useless extension candidates. Maximal degree in co-relation 100918. Up to 10376 conditions per place. [2024-11-19 05:48:07,598 INFO L140 encePairwiseOnDemand]: 206/237 looper letters, 936 selfloop transitions, 143 changer transitions 0/1357 dead transitions. [2024-11-19 05:48:07,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 1357 transitions, 14750 flow [2024-11-19 05:48:07,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-19 05:48:07,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2024-11-19 05:48:07,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 4326 transitions. [2024-11-19 05:48:07,606 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7020447906523856 [2024-11-19 05:48:07,606 INFO L175 Difference]: Start difference. First operand has 337 places, 901 transitions, 8389 flow. Second operand 26 states and 4326 transitions. [2024-11-19 05:48:07,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 1357 transitions, 14750 flow [2024-11-19 05:48:07,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 1357 transitions, 14709 flow, removed 15 selfloop flow, removed 6 redundant places. [2024-11-19 05:48:07,954 INFO L231 Difference]: Finished difference. Result has 373 places, 1024 transitions, 10768 flow [2024-11-19 05:48:07,955 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=8348, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=901, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=806, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=10768, PETRI_PLACES=373, PETRI_TRANSITIONS=1024} [2024-11-19 05:48:07,955 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 151 predicate places. [2024-11-19 05:48:07,955 INFO L471 AbstractCegarLoop]: Abstraction has has 373 places, 1024 transitions, 10768 flow [2024-11-19 05:48:07,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 155.66666666666666) internal successors, (3736), 24 states have internal predecessors, (3736), 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) [2024-11-19 05:48:07,957 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:48:07,957 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:48:07,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 05:48:07,957 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-19 05:48:07,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:48:07,958 INFO L85 PathProgramCache]: Analyzing trace with hash -468425432, now seen corresponding path program 3 times [2024-11-19 05:48:07,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:48:07,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816098975] [2024-11-19 05:48:07,958 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 05:48:07,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:48:07,977 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 05:48:07,977 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:48:09,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:48:09,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:48:09,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816098975] [2024-11-19 05:48:09,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816098975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:48:09,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:48:09,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-19 05:48:09,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856350574] [2024-11-19 05:48:09,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:48:09,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-19 05:48:09,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:48:09,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-19 05:48:09,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2024-11-19 05:48:13,574 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 237 [2024-11-19 05:48:13,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 1024 transitions, 10768 flow. Second operand has 24 states, 24 states have (on average 155.66666666666666) internal successors, (3736), 24 states have internal predecessors, (3736), 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) [2024-11-19 05:48:13,577 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:48:13,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 237 [2024-11-19 05:48:13,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:48:24,025 INFO L124 PetriNetUnfolderBase]: 9143/36365 cut-off events. [2024-11-19 05:48:24,025 INFO L125 PetriNetUnfolderBase]: For 142695/145740 co-relation queries the response was YES. [2024-11-19 05:48:24,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123151 conditions, 36365 events. 9143/36365 cut-off events. For 142695/145740 co-relation queries the response was YES. Maximal size of possible extension queue 515. Compared 437101 event pairs, 1798 based on Foata normal form. 365/35080 useless extension candidates. Maximal degree in co-relation 123005. Up to 11998 conditions per place. [2024-11-19 05:48:24,863 INFO L140 encePairwiseOnDemand]: 206/237 looper letters, 1057 selfloop transitions, 195 changer transitions 0/1530 dead transitions. [2024-11-19 05:48:24,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 1530 transitions, 18510 flow [2024-11-19 05:48:24,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-19 05:48:24,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2024-11-19 05:48:24,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 5275 transitions. [2024-11-19 05:48:24,868 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6955432489451476 [2024-11-19 05:48:24,869 INFO L175 Difference]: Start difference. First operand has 373 places, 1024 transitions, 10768 flow. Second operand 32 states and 5275 transitions. [2024-11-19 05:48:24,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 1530 transitions, 18510 flow [2024-11-19 05:48:25,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 1530 transitions, 18310 flow, removed 93 selfloop flow, removed 7 redundant places. [2024-11-19 05:48:25,392 INFO L231 Difference]: Finished difference. Result has 419 places, 1170 transitions, 13696 flow [2024-11-19 05:48:25,393 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=10572, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1024, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=886, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=13696, PETRI_PLACES=419, PETRI_TRANSITIONS=1170} [2024-11-19 05:48:25,393 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 197 predicate places. [2024-11-19 05:48:25,393 INFO L471 AbstractCegarLoop]: Abstraction has has 419 places, 1170 transitions, 13696 flow [2024-11-19 05:48:25,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 155.66666666666666) internal successors, (3736), 24 states have internal predecessors, (3736), 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) [2024-11-19 05:48:25,394 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:48:25,394 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:48:25,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 05:48:25,395 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-19 05:48:25,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:48:25,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1312985492, now seen corresponding path program 4 times [2024-11-19 05:48:25,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:48:25,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257793429] [2024-11-19 05:48:25,395 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 05:48:25,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:48:25,414 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 05:48:25,414 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:48:26,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:48:26,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:48:26,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257793429] [2024-11-19 05:48:26,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257793429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:48:26,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:48:26,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-19 05:48:26,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669220186] [2024-11-19 05:48:26,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:48:26,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-19 05:48:26,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:48:26,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-19 05:48:26,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2024-11-19 05:48:29,083 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 237 [2024-11-19 05:48:29,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 1170 transitions, 13696 flow. Second operand has 20 states, 20 states have (on average 161.75) internal successors, (3235), 20 states have internal predecessors, (3235), 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) [2024-11-19 05:48:29,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:48:29,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 237 [2024-11-19 05:48:29,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand