./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-divine/ring_1w1r-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-divine/ring_1w1r-2.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 b7e9feb6929ab81158cc9d6731414a71af210f92cb571da2954e02689fee6d2b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 17:47:28,045 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 17:47:28,115 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-22 17:47:28,120 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 17:47:28,121 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 17:47:28,138 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 17:47:28,139 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 17:47:28,139 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 17:47:28,140 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 17:47:28,140 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 17:47:28,140 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 17:47:28,141 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 17:47:28,142 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 17:47:28,145 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 17:47:28,145 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 17:47:28,145 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 17:47:28,145 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 17:47:28,145 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 17:47:28,146 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 17:47:28,146 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 17:47:28,146 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 17:47:28,147 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 17:47:28,147 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-22 17:47:28,148 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 17:47:28,148 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 17:47:28,148 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 17:47:28,148 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 17:47:28,148 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 17:47:28,149 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 17:47:28,149 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 17:47:28,149 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 17:47:28,149 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:47:28,149 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 17:47:28,149 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 17:47:28,150 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 17:47:28,150 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 17:47:28,150 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 17:47:28,150 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 17:47:28,151 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 17:47:28,151 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 17:47:28,151 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 17:47:28,152 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7e9feb6929ab81158cc9d6731414a71af210f92cb571da2954e02689fee6d2b [2024-11-22 17:47:28,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 17:47:28,378 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 17:47:28,380 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 17:47:28,381 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 17:47:28,381 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 17:47:28,382 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-divine/ring_1w1r-2.i [2024-11-22 17:47:29,695 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 17:47:29,923 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 17:47:29,924 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i [2024-11-22 17:47:29,940 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4fe7c781/ec725cadbf0e4574945c53c8ac630823/FLAG62a138706 [2024-11-22 17:47:29,953 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4fe7c781/ec725cadbf0e4574945c53c8ac630823 [2024-11-22 17:47:29,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 17:47:29,956 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 17:47:29,957 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 17:47:29,958 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 17:47:29,962 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 17:47:29,963 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:47:29" (1/1) ... [2024-11-22 17:47:29,964 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77e5297e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:47:29, skipping insertion in model container [2024-11-22 17:47:29,964 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:47:29" (1/1) ... [2024-11-22 17:47:30,000 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 17:47:30,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:47:30,353 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 17:47:30,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:47:30,528 INFO L204 MainTranslator]: Completed translation [2024-11-22 17:47:30,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:47:30 WrapperNode [2024-11-22 17:47:30,528 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 17:47:30,529 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 17:47:30,529 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 17:47:30,530 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 17:47:30,534 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:47:30" (1/1) ... [2024-11-22 17:47:30,553 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:47:30" (1/1) ... [2024-11-22 17:47:30,588 INFO L138 Inliner]: procedures = 223, calls = 39, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 221 [2024-11-22 17:47:30,590 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 17:47:30,590 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 17:47:30,590 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 17:47:30,590 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 17:47:30,597 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:47:30" (1/1) ... [2024-11-22 17:47:30,597 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:47:30" (1/1) ... [2024-11-22 17:47:30,602 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:47:30" (1/1) ... [2024-11-22 17:47:30,605 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:47:30" (1/1) ... [2024-11-22 17:47:30,622 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:47:30" (1/1) ... [2024-11-22 17:47:30,629 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:47:30" (1/1) ... [2024-11-22 17:47:30,635 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:47:30" (1/1) ... [2024-11-22 17:47:30,636 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:47:30" (1/1) ... [2024-11-22 17:47:30,642 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 17:47:30,643 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 17:47:30,646 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 17:47:30,646 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 17:47:30,646 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:47:30" (1/1) ... [2024-11-22 17:47:30,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:47:30,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:47:30,675 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) [2024-11-22 17:47:30,678 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 [2024-11-22 17:47:30,713 INFO L130 BoogieDeclarations]: Found specification of procedure reader_fn [2024-11-22 17:47:30,713 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_fn [2024-11-22 17:47:30,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 17:47:30,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 17:47:30,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-22 17:47:30,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-22 17:47:30,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 17:47:30,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-22 17:47:30,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 17:47:30,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 17:47:30,716 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 17:47:30,808 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 17:47:30,810 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 17:47:31,189 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 17:47:31,189 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 17:47:31,203 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 17:47:31,204 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-22 17:47:31,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:47:31 BoogieIcfgContainer [2024-11-22 17:47:31,204 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 17:47:31,206 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 17:47:31,206 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 17:47:31,208 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 17:47:31,208 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 05:47:29" (1/3) ... [2024-11-22 17:47:31,209 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c33d937 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:47:31, skipping insertion in model container [2024-11-22 17:47:31,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:47:30" (2/3) ... [2024-11-22 17:47:31,209 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c33d937 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:47:31, skipping insertion in model container [2024-11-22 17:47:31,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:47:31" (3/3) ... [2024-11-22 17:47:31,210 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_1w1r-2.i [2024-11-22 17:47:31,223 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 17:47:31,223 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-11-22 17:47:31,223 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 17:47:31,309 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-22 17:47:31,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 257 places, 266 transitions, 539 flow [2024-11-22 17:47:31,451 INFO L124 PetriNetUnfolderBase]: 13/265 cut-off events. [2024-11-22 17:47:31,451 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-22 17:47:31,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 265 events. 13/265 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 539 event pairs, 0 based on Foata normal form. 0/236 useless extension candidates. Maximal degree in co-relation 215. Up to 2 conditions per place. [2024-11-22 17:47:31,467 INFO L82 GeneralOperation]: Start removeDead. Operand has 257 places, 266 transitions, 539 flow [2024-11-22 17:47:31,476 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 250 places, 259 transitions, 521 flow [2024-11-22 17:47:31,487 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 17:47:31,495 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;@5a72f67b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 17:47:31,496 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-22 17:47:31,502 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 17:47:31,503 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-11-22 17:47:31,503 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 17:47:31,503 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:47:31,503 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] [2024-11-22 17:47:31,504 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-22 17:47:31,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:47:31,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1008521894, now seen corresponding path program 1 times [2024-11-22 17:47:31,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:47:31,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016983739] [2024-11-22 17:47:31,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:47:31,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:47:31,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:47:32,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:47:32,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:47:32,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016983739] [2024-11-22 17:47:32,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016983739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:47:32,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:47:32,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:47:32,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609317863] [2024-11-22 17:47:32,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:47:32,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:47:32,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:47:32,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:47:32,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:47:32,578 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 266 [2024-11-22 17:47:32,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 259 transitions, 521 flow. Second operand has 6 states, 6 states have (on average 189.33333333333334) internal successors, (1136), 6 states have internal predecessors, (1136), 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) [2024-11-22 17:47:32,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:47:32,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 266 [2024-11-22 17:47:32,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:47:33,147 INFO L124 PetriNetUnfolderBase]: 927/4296 cut-off events. [2024-11-22 17:47:33,148 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-22 17:47:33,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6037 conditions, 4296 events. 927/4296 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 34093 event pairs, 768 based on Foata normal form. 398/4280 useless extension candidates. Maximal degree in co-relation 5978. Up to 1732 conditions per place. [2024-11-22 17:47:33,171 INFO L140 encePairwiseOnDemand]: 251/266 looper letters, 62 selfloop transitions, 5 changer transitions 0/246 dead transitions. [2024-11-22 17:47:33,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 246 transitions, 629 flow [2024-11-22 17:47:33,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:47:33,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:47:33,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1205 transitions. [2024-11-22 17:47:33,191 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7550125313283208 [2024-11-22 17:47:33,194 INFO L175 Difference]: Start difference. First operand has 250 places, 259 transitions, 521 flow. Second operand 6 states and 1205 transitions. [2024-11-22 17:47:33,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 246 transitions, 629 flow [2024-11-22 17:47:33,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 246 transitions, 628 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 17:47:33,202 INFO L231 Difference]: Finished difference. Result has 250 places, 246 transitions, 504 flow [2024-11-22 17:47:33,204 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=504, PETRI_PLACES=250, PETRI_TRANSITIONS=246} [2024-11-22 17:47:33,208 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, 0 predicate places. [2024-11-22 17:47:33,209 INFO L471 AbstractCegarLoop]: Abstraction has has 250 places, 246 transitions, 504 flow [2024-11-22 17:47:33,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 189.33333333333334) internal successors, (1136), 6 states have internal predecessors, (1136), 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) [2024-11-22 17:47:33,210 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:47:33,210 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] [2024-11-22 17:47:33,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 17:47:33,210 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-22 17:47:33,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:47:33,212 INFO L85 PathProgramCache]: Analyzing trace with hash 143388735, now seen corresponding path program 1 times [2024-11-22 17:47:33,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:47:33,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075300441] [2024-11-22 17:47:33,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:47:33,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:47:33,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:47:33,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:47:33,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:47:33,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075300441] [2024-11-22 17:47:33,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075300441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:47:33,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:47:33,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:47:33,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598723880] [2024-11-22 17:47:33,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:47:33,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:47:33,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:47:33,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:47:33,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:47:33,707 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 266 [2024-11-22 17:47:33,708 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 246 transitions, 504 flow. Second operand has 6 states, 6 states have (on average 189.33333333333334) internal successors, (1136), 6 states have internal predecessors, (1136), 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) [2024-11-22 17:47:33,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:47:33,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 266 [2024-11-22 17:47:33,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:47:34,153 INFO L124 PetriNetUnfolderBase]: 927/4295 cut-off events. [2024-11-22 17:47:34,154 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 17:47:34,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6041 conditions, 4295 events. 927/4295 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 34050 event pairs, 768 based on Foata normal form. 0/3882 useless extension candidates. Maximal degree in co-relation 5990. Up to 1732 conditions per place. [2024-11-22 17:47:34,168 INFO L140 encePairwiseOnDemand]: 260/266 looper letters, 62 selfloop transitions, 5 changer transitions 0/245 dead transitions. [2024-11-22 17:47:34,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 245 transitions, 636 flow [2024-11-22 17:47:34,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:47:34,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:47:34,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1196 transitions. [2024-11-22 17:47:34,170 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7493734335839599 [2024-11-22 17:47:34,171 INFO L175 Difference]: Start difference. First operand has 250 places, 246 transitions, 504 flow. Second operand 6 states and 1196 transitions. [2024-11-22 17:47:34,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 245 transitions, 636 flow [2024-11-22 17:47:34,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 245 transitions, 626 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 17:47:34,177 INFO L231 Difference]: Finished difference. Result has 249 places, 245 transitions, 502 flow [2024-11-22 17:47:34,179 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=502, PETRI_PLACES=249, PETRI_TRANSITIONS=245} [2024-11-22 17:47:34,179 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, -1 predicate places. [2024-11-22 17:47:34,180 INFO L471 AbstractCegarLoop]: Abstraction has has 249 places, 245 transitions, 502 flow [2024-11-22 17:47:34,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 189.33333333333334) internal successors, (1136), 6 states have internal predecessors, (1136), 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) [2024-11-22 17:47:34,181 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:47:34,181 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] [2024-11-22 17:47:34,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 17:47:34,181 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-22 17:47:34,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:47:34,182 INFO L85 PathProgramCache]: Analyzing trace with hash -2017236769, now seen corresponding path program 1 times [2024-11-22 17:47:34,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:47:34,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831692352] [2024-11-22 17:47:34,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:47:34,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:47:34,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:47:34,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:47:34,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:47:34,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831692352] [2024-11-22 17:47:34,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831692352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:47:34,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:47:34,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:47:34,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329181307] [2024-11-22 17:47:34,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:47:34,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:47:34,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:47:34,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:47:34,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:47:34,930 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 266 [2024-11-22 17:47:34,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 245 transitions, 502 flow. Second operand has 6 states, 6 states have (on average 219.66666666666666) internal successors, (1318), 6 states have internal predecessors, (1318), 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) [2024-11-22 17:47:34,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:47:34,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 266 [2024-11-22 17:47:34,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:47:35,214 INFO L124 PetriNetUnfolderBase]: 330/2437 cut-off events. [2024-11-22 17:47:35,214 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-22 17:47:35,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3046 conditions, 2437 events. 330/2437 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 18133 event pairs, 94 based on Foata normal form. 0/2164 useless extension candidates. Maximal degree in co-relation 2994. Up to 494 conditions per place. [2024-11-22 17:47:35,226 INFO L140 encePairwiseOnDemand]: 244/266 looper letters, 37 selfloop transitions, 44 changer transitions 0/287 dead transitions. [2024-11-22 17:47:35,226 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 287 transitions, 748 flow [2024-11-22 17:47:35,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:47:35,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:47:35,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1385 transitions. [2024-11-22 17:47:35,229 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8677944862155389 [2024-11-22 17:47:35,230 INFO L175 Difference]: Start difference. First operand has 249 places, 245 transitions, 502 flow. Second operand 6 states and 1385 transitions. [2024-11-22 17:47:35,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 287 transitions, 748 flow [2024-11-22 17:47:35,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 287 transitions, 738 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 17:47:35,236 INFO L231 Difference]: Finished difference. Result has 254 places, 287 transitions, 792 flow [2024-11-22 17:47:35,236 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=792, PETRI_PLACES=254, PETRI_TRANSITIONS=287} [2024-11-22 17:47:35,237 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, 4 predicate places. [2024-11-22 17:47:35,237 INFO L471 AbstractCegarLoop]: Abstraction has has 254 places, 287 transitions, 792 flow [2024-11-22 17:47:35,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 219.66666666666666) internal successors, (1318), 6 states have internal predecessors, (1318), 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) [2024-11-22 17:47:35,238 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:47:35,242 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] [2024-11-22 17:47:35,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 17:47:35,243 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-22 17:47:35,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:47:35,247 INFO L85 PathProgramCache]: Analyzing trace with hash -903695032, now seen corresponding path program 1 times [2024-11-22 17:47:35,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:47:35,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356827124] [2024-11-22 17:47:35,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:47:35,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:47:35,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:47:35,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:47:35,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:47:35,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356827124] [2024-11-22 17:47:35,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356827124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:47:35,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:47:35,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:47:35,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571215989] [2024-11-22 17:47:35,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:47:35,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:47:35,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:47:35,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:47:35,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:47:35,968 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 266 [2024-11-22 17:47:35,969 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 287 transitions, 792 flow. Second operand has 6 states, 6 states have (on average 215.66666666666666) internal successors, (1294), 6 states have internal predecessors, (1294), 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) [2024-11-22 17:47:35,969 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:47:35,970 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 266 [2024-11-22 17:47:35,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:47:36,353 INFO L124 PetriNetUnfolderBase]: 485/4433 cut-off events. [2024-11-22 17:47:36,353 INFO L125 PetriNetUnfolderBase]: For 587/765 co-relation queries the response was YES. [2024-11-22 17:47:36,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6525 conditions, 4433 events. 485/4433 cut-off events. For 587/765 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 37641 event pairs, 73 based on Foata normal form. 68/4125 useless extension candidates. Maximal degree in co-relation 6465. Up to 613 conditions per place. [2024-11-22 17:47:36,370 INFO L140 encePairwiseOnDemand]: 242/266 looper letters, 80 selfloop transitions, 41 changer transitions 0/333 dead transitions. [2024-11-22 17:47:36,370 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 333 transitions, 1162 flow [2024-11-22 17:47:36,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:47:36,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:47:36,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1362 transitions. [2024-11-22 17:47:36,373 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8533834586466166 [2024-11-22 17:47:36,373 INFO L175 Difference]: Start difference. First operand has 254 places, 287 transitions, 792 flow. Second operand 6 states and 1362 transitions. [2024-11-22 17:47:36,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 333 transitions, 1162 flow [2024-11-22 17:47:36,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 333 transitions, 1162 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:47:36,382 INFO L231 Difference]: Finished difference. Result has 264 places, 327 transitions, 1134 flow [2024-11-22 17:47:36,382 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=792, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1134, PETRI_PLACES=264, PETRI_TRANSITIONS=327} [2024-11-22 17:47:36,383 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, 14 predicate places. [2024-11-22 17:47:36,383 INFO L471 AbstractCegarLoop]: Abstraction has has 264 places, 327 transitions, 1134 flow [2024-11-22 17:47:36,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 215.66666666666666) internal successors, (1294), 6 states have internal predecessors, (1294), 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) [2024-11-22 17:47:36,384 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:47:36,384 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] [2024-11-22 17:47:36,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 17:47:36,384 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting reader_fnErr1ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-22 17:47:36,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:47:36,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1844824793, now seen corresponding path program 1 times [2024-11-22 17:47:36,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:47:36,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309611824] [2024-11-22 17:47:36,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:47:36,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:47:36,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:47:36,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:47:36,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:47:36,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309611824] [2024-11-22 17:47:36,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309611824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:47:36,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:47:36,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:47:36,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188033663] [2024-11-22 17:47:36,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:47:36,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:47:36,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:47:36,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:47:36,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:47:37,002 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 266 [2024-11-22 17:47:37,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 327 transitions, 1134 flow. Second operand has 6 states, 6 states have (on average 219.66666666666666) internal successors, (1318), 6 states have internal predecessors, (1318), 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) [2024-11-22 17:47:37,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:47:37,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 266 [2024-11-22 17:47:37,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:47:37,495 INFO L124 PetriNetUnfolderBase]: 735/5267 cut-off events. [2024-11-22 17:47:37,495 INFO L125 PetriNetUnfolderBase]: For 2499/3038 co-relation queries the response was YES. [2024-11-22 17:47:37,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9546 conditions, 5267 events. 735/5267 cut-off events. For 2499/3038 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 45717 event pairs, 80 based on Foata normal form. 106/4992 useless extension candidates. Maximal degree in co-relation 9481. Up to 1019 conditions per place. [2024-11-22 17:47:37,525 INFO L140 encePairwiseOnDemand]: 244/266 looper letters, 95 selfloop transitions, 86 changer transitions 0/409 dead transitions. [2024-11-22 17:47:37,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 409 transitions, 1968 flow [2024-11-22 17:47:37,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:47:37,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:47:37,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1385 transitions. [2024-11-22 17:47:37,528 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8677944862155389 [2024-11-22 17:47:37,528 INFO L175 Difference]: Start difference. First operand has 264 places, 327 transitions, 1134 flow. Second operand 6 states and 1385 transitions. [2024-11-22 17:47:37,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 409 transitions, 1968 flow [2024-11-22 17:47:37,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 409 transitions, 1968 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:47:37,540 INFO L231 Difference]: Finished difference. Result has 274 places, 409 transitions, 2010 flow [2024-11-22 17:47:37,541 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=1134, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2010, PETRI_PLACES=274, PETRI_TRANSITIONS=409} [2024-11-22 17:47:37,541 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, 24 predicate places. [2024-11-22 17:47:37,542 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 409 transitions, 2010 flow [2024-11-22 17:47:37,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 219.66666666666666) internal successors, (1318), 6 states have internal predecessors, (1318), 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) [2024-11-22 17:47:37,542 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:47:37,543 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] [2024-11-22 17:47:37,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 17:47:37,543 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-22 17:47:37,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:47:37,543 INFO L85 PathProgramCache]: Analyzing trace with hash 2101041956, now seen corresponding path program 1 times [2024-11-22 17:47:37,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:47:37,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539820282] [2024-11-22 17:47:37,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:47:37,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:47:37,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:47:37,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:47:37,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:47:37,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539820282] [2024-11-22 17:47:37,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539820282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:47:37,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:47:37,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:47:37,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842794303] [2024-11-22 17:47:37,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:47:37,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:47:37,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:47:37,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:47:37,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:47:38,359 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 266 [2024-11-22 17:47:38,361 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 409 transitions, 2010 flow. Second operand has 6 states, 6 states have (on average 232.66666666666666) internal successors, (1396), 6 states have internal predecessors, (1396), 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) [2024-11-22 17:47:38,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:47:38,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 266 [2024-11-22 17:47:38,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:47:38,996 INFO L124 PetriNetUnfolderBase]: 881/6062 cut-off events. [2024-11-22 17:47:38,996 INFO L125 PetriNetUnfolderBase]: For 5263/5996 co-relation queries the response was YES. [2024-11-22 17:47:39,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12056 conditions, 6062 events. 881/6062 cut-off events. For 5263/5996 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 54646 event pairs, 48 based on Foata normal form. 249/5927 useless extension candidates. Maximal degree in co-relation 11986. Up to 705 conditions per place. [2024-11-22 17:47:39,034 INFO L140 encePairwiseOnDemand]: 255/266 looper letters, 98 selfloop transitions, 62 changer transitions 0/470 dead transitions. [2024-11-22 17:47:39,034 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 470 transitions, 2686 flow [2024-11-22 17:47:39,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:47:39,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:47:39,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1432 transitions. [2024-11-22 17:47:39,037 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8972431077694235 [2024-11-22 17:47:39,037 INFO L175 Difference]: Start difference. First operand has 274 places, 409 transitions, 2010 flow. Second operand 6 states and 1432 transitions. [2024-11-22 17:47:39,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 470 transitions, 2686 flow [2024-11-22 17:47:39,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 470 transitions, 2686 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:47:39,067 INFO L231 Difference]: Finished difference. Result has 284 places, 467 transitions, 2678 flow [2024-11-22 17:47:39,071 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=2010, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2678, PETRI_PLACES=284, PETRI_TRANSITIONS=467} [2024-11-22 17:47:39,072 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, 34 predicate places. [2024-11-22 17:47:39,074 INFO L471 AbstractCegarLoop]: Abstraction has has 284 places, 467 transitions, 2678 flow [2024-11-22 17:47:39,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 232.66666666666666) internal successors, (1396), 6 states have internal predecessors, (1396), 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) [2024-11-22 17:47:39,075 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:47:39,076 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] [2024-11-22 17:47:39,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 17:47:39,076 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reader_fnErr2ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-22 17:47:39,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:47:39,076 INFO L85 PathProgramCache]: Analyzing trace with hash 846692282, now seen corresponding path program 1 times [2024-11-22 17:47:39,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:47:39,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870045521] [2024-11-22 17:47:39,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:47:39,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:47:39,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:47:39,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:47:39,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:47:39,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870045521] [2024-11-22 17:47:39,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870045521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:47:39,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:47:39,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:47:39,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011781925] [2024-11-22 17:47:39,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:47:39,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:47:39,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:47:39,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:47:39,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:47:39,732 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 266 [2024-11-22 17:47:39,734 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 467 transitions, 2678 flow. Second operand has 6 states, 6 states have (on average 221.66666666666666) internal successors, (1330), 6 states have internal predecessors, (1330), 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) [2024-11-22 17:47:39,734 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:47:39,734 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 266 [2024-11-22 17:47:39,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:47:40,433 INFO L124 PetriNetUnfolderBase]: 1106/7260 cut-off events. [2024-11-22 17:47:40,434 INFO L125 PetriNetUnfolderBase]: For 9785/10506 co-relation queries the response was YES. [2024-11-22 17:47:40,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15942 conditions, 7260 events. 1106/7260 cut-off events. For 9785/10506 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 69874 event pairs, 80 based on Foata normal form. 132/7005 useless extension candidates. Maximal degree in co-relation 15867. Up to 1305 conditions per place. [2024-11-22 17:47:40,476 INFO L140 encePairwiseOnDemand]: 245/266 looper letters, 215 selfloop transitions, 70 changer transitions 0/532 dead transitions. [2024-11-22 17:47:40,477 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 532 transitions, 3686 flow [2024-11-22 17:47:40,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:47:40,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:47:40,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1398 transitions. [2024-11-22 17:47:40,482 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8759398496240601 [2024-11-22 17:47:40,482 INFO L175 Difference]: Start difference. First operand has 284 places, 467 transitions, 2678 flow. Second operand 6 states and 1398 transitions. [2024-11-22 17:47:40,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 532 transitions, 3686 flow [2024-11-22 17:47:40,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 532 transitions, 3686 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:47:40,506 INFO L231 Difference]: Finished difference. Result has 294 places, 529 transitions, 3452 flow [2024-11-22 17:47:40,506 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=2678, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=467, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3452, PETRI_PLACES=294, PETRI_TRANSITIONS=529} [2024-11-22 17:47:40,507 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, 44 predicate places. [2024-11-22 17:47:40,507 INFO L471 AbstractCegarLoop]: Abstraction has has 294 places, 529 transitions, 3452 flow [2024-11-22 17:47:40,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 221.66666666666666) internal successors, (1330), 6 states have internal predecessors, (1330), 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) [2024-11-22 17:47:40,508 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:47:40,508 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] [2024-11-22 17:47:40,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 17:47:40,508 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-22 17:47:40,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:47:40,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1592000322, now seen corresponding path program 1 times [2024-11-22 17:47:40,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:47:40,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046594693] [2024-11-22 17:47:40,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:47:40,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:47:40,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:47:40,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:47:40,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:47:40,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046594693] [2024-11-22 17:47:40,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046594693] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:47:40,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:47:40,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:47:40,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114471580] [2024-11-22 17:47:40,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:47:40,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:47:40,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:47:40,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:47:40,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:47:41,083 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 266 [2024-11-22 17:47:41,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 529 transitions, 3452 flow. Second operand has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 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) [2024-11-22 17:47:41,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:47:41,084 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 266 [2024-11-22 17:47:41,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:47:43,400 INFO L124 PetriNetUnfolderBase]: 4630/15261 cut-off events. [2024-11-22 17:47:43,400 INFO L125 PetriNetUnfolderBase]: For 17969/18105 co-relation queries the response was YES. [2024-11-22 17:47:43,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41019 conditions, 15261 events. 4630/15261 cut-off events. For 17969/18105 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 139748 event pairs, 2055 based on Foata normal form. 40/14517 useless extension candidates. Maximal degree in co-relation 40939. Up to 8642 conditions per place. [2024-11-22 17:47:43,481 INFO L140 encePairwiseOnDemand]: 227/266 looper letters, 301 selfloop transitions, 208 changer transitions 0/694 dead transitions. [2024-11-22 17:47:43,482 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 694 transitions, 5296 flow [2024-11-22 17:47:43,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:47:43,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:47:43,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1300 transitions. [2024-11-22 17:47:43,484 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8145363408521303 [2024-11-22 17:47:43,484 INFO L175 Difference]: Start difference. First operand has 294 places, 529 transitions, 3452 flow. Second operand 6 states and 1300 transitions. [2024-11-22 17:47:43,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 694 transitions, 5296 flow [2024-11-22 17:47:43,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 694 transitions, 5124 flow, removed 86 selfloop flow, removed 0 redundant places. [2024-11-22 17:47:43,555 INFO L231 Difference]: Finished difference. Result has 304 places, 694 transitions, 5072 flow [2024-11-22 17:47:43,557 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=3292, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=529, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5072, PETRI_PLACES=304, PETRI_TRANSITIONS=694} [2024-11-22 17:47:43,557 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, 54 predicate places. [2024-11-22 17:47:43,558 INFO L471 AbstractCegarLoop]: Abstraction has has 304 places, 694 transitions, 5072 flow [2024-11-22 17:47:43,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 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) [2024-11-22 17:47:43,559 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:47:43,559 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] [2024-11-22 17:47:43,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 17:47:43,559 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reader_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-22 17:47:43,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:47:43,560 INFO L85 PathProgramCache]: Analyzing trace with hash -941239682, now seen corresponding path program 1 times [2024-11-22 17:47:43,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:47:43,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292646558] [2024-11-22 17:47:43,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:47:43,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:47:43,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:47:43,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:47:43,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:47:43,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292646558] [2024-11-22 17:47:43,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292646558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:47:43,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:47:43,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:47:43,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585356946] [2024-11-22 17:47:43,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:47:43,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:47:43,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:47:43,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:47:43,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:47:44,365 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 266 [2024-11-22 17:47:44,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 694 transitions, 5072 flow. Second operand has 6 states, 6 states have (on average 226.83333333333334) internal successors, (1361), 6 states have internal predecessors, (1361), 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) [2024-11-22 17:47:44,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:47:44,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 266 [2024-11-22 17:47:44,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:47:45,798 INFO L124 PetriNetUnfolderBase]: 1691/9069 cut-off events. [2024-11-22 17:47:45,799 INFO L125 PetriNetUnfolderBase]: For 21880/23602 co-relation queries the response was YES. [2024-11-22 17:47:45,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24170 conditions, 9069 events. 1691/9069 cut-off events. For 21880/23602 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 88418 event pairs, 109 based on Foata normal form. 230/8896 useless extension candidates. Maximal degree in co-relation 24085. Up to 1674 conditions per place. [2024-11-22 17:47:45,881 INFO L140 encePairwiseOnDemand]: 251/266 looper letters, 311 selfloop transitions, 92 changer transitions 0/781 dead transitions. [2024-11-22 17:47:45,885 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 781 transitions, 6716 flow [2024-11-22 17:47:45,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:47:45,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:47:45,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1414 transitions. [2024-11-22 17:47:45,893 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8859649122807017 [2024-11-22 17:47:45,893 INFO L175 Difference]: Start difference. First operand has 304 places, 694 transitions, 5072 flow. Second operand 6 states and 1414 transitions. [2024-11-22 17:47:45,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 781 transitions, 6716 flow [2024-11-22 17:47:46,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 781 transitions, 6528 flow, removed 94 selfloop flow, removed 0 redundant places. [2024-11-22 17:47:46,013 INFO L231 Difference]: Finished difference. Result has 314 places, 781 transitions, 6152 flow [2024-11-22 17:47:46,014 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=4884, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=694, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=659, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=6152, PETRI_PLACES=314, PETRI_TRANSITIONS=781} [2024-11-22 17:47:46,015 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, 64 predicate places. [2024-11-22 17:47:46,015 INFO L471 AbstractCegarLoop]: Abstraction has has 314 places, 781 transitions, 6152 flow [2024-11-22 17:47:46,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 226.83333333333334) internal successors, (1361), 6 states have internal predecessors, (1361), 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) [2024-11-22 17:47:46,016 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:47:46,016 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:47:46,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 17:47:46,017 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-22 17:47:46,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:47:46,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1974966499, now seen corresponding path program 1 times [2024-11-22 17:47:46,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:47:46,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447278768] [2024-11-22 17:47:46,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:47:46,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:47:46,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:47:47,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:47:47,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:47:47,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447278768] [2024-11-22 17:47:47,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447278768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:47:47,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:47:47,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-22 17:47:47,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876123383] [2024-11-22 17:47:47,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:47:47,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-22 17:47:47,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:47:47,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-22 17:47:47,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2024-11-22 17:47:55,639 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 266 [2024-11-22 17:47:55,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 781 transitions, 6152 flow. Second operand has 24 states, 24 states have (on average 180.79166666666666) internal successors, (4339), 24 states have internal predecessors, (4339), 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) [2024-11-22 17:47:55,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:47:55,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 266 [2024-11-22 17:47:55,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:03,876 INFO L124 PetriNetUnfolderBase]: 6159/25819 cut-off events. [2024-11-22 17:48:03,877 INFO L125 PetriNetUnfolderBase]: For 48869/50293 co-relation queries the response was YES. [2024-11-22 17:48:03,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73821 conditions, 25819 events. 6159/25819 cut-off events. For 48869/50293 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 290510 event pairs, 539 based on Foata normal form. 417/25234 useless extension candidates. Maximal degree in co-relation 73722. Up to 5362 conditions per place. [2024-11-22 17:48:04,069 INFO L140 encePairwiseOnDemand]: 214/266 looper letters, 985 selfloop transitions, 252 changer transitions 12/1587 dead transitions. [2024-11-22 17:48:04,069 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 1587 transitions, 14582 flow [2024-11-22 17:48:04,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-22 17:48:04,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2024-11-22 17:48:04,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 6557 transitions. [2024-11-22 17:48:04,079 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7250110570544007 [2024-11-22 17:48:04,079 INFO L175 Difference]: Start difference. First operand has 314 places, 781 transitions, 6152 flow. Second operand 34 states and 6557 transitions. [2024-11-22 17:48:04,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 1587 transitions, 14582 flow [2024-11-22 17:48:04,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 1587 transitions, 14262 flow, removed 160 selfloop flow, removed 0 redundant places. [2024-11-22 17:48:04,349 INFO L231 Difference]: Finished difference. Result has 374 places, 1023 transitions, 9135 flow [2024-11-22 17:48:04,350 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=5976, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=781, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=674, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=9135, PETRI_PLACES=374, PETRI_TRANSITIONS=1023} [2024-11-22 17:48:04,351 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, 124 predicate places. [2024-11-22 17:48:04,352 INFO L471 AbstractCegarLoop]: Abstraction has has 374 places, 1023 transitions, 9135 flow [2024-11-22 17:48:04,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 180.79166666666666) internal successors, (4339), 24 states have internal predecessors, (4339), 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) [2024-11-22 17:48:04,353 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:04,353 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:04,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 17:48:04,354 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-22 17:48:04,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:04,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1549883357, now seen corresponding path program 2 times [2024-11-22 17:48:04,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:04,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410356764] [2024-11-22 17:48:04,355 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 17:48:04,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:04,381 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 17:48:04,381 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:48:05,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:05,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:05,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410356764] [2024-11-22 17:48:05,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410356764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:05,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:48:05,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2024-11-22 17:48:05,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956295247] [2024-11-22 17:48:05,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:05,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-22 17:48:05,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:05,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-22 17:48:05,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=578, Unknown=0, NotChecked=0, Total=650 [2024-11-22 17:48:12,925 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 266 [2024-11-22 17:48:12,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 1023 transitions, 9135 flow. Second operand has 26 states, 26 states have (on average 171.8846153846154) internal successors, (4469), 26 states have internal predecessors, (4469), 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) [2024-11-22 17:48:12,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:12,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 266 [2024-11-22 17:48:12,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:28,704 INFO L124 PetriNetUnfolderBase]: 13135/46549 cut-off events. [2024-11-22 17:48:28,704 INFO L125 PetriNetUnfolderBase]: For 155560/157614 co-relation queries the response was YES. [2024-11-22 17:48:29,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161605 conditions, 46549 events. 13135/46549 cut-off events. For 155560/157614 co-relation queries the response was YES. Maximal size of possible extension queue 587. Compared 543239 event pairs, 1117 based on Foata normal form. 612/45743 useless extension candidates. Maximal degree in co-relation 161470. Up to 7646 conditions per place. [2024-11-22 17:48:29,203 INFO L140 encePairwiseOnDemand]: 220/266 looper letters, 2054 selfloop transitions, 391 changer transitions 32/2771 dead transitions. [2024-11-22 17:48:29,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 2771 transitions, 30649 flow [2024-11-22 17:48:29,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-11-22 17:48:29,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2024-11-22 17:48:29,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 9726 transitions. [2024-11-22 17:48:29,216 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6898850900836998 [2024-11-22 17:48:29,216 INFO L175 Difference]: Start difference. First operand has 374 places, 1023 transitions, 9135 flow. Second operand 53 states and 9726 transitions. [2024-11-22 17:48:29,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 2771 transitions, 30649 flow [2024-11-22 17:48:29,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 2771 transitions, 30638 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-22 17:48:29,904 INFO L231 Difference]: Finished difference. Result has 463 places, 1433 transitions, 14641 flow [2024-11-22 17:48:29,905 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=9124, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1023, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=873, PETRI_DIFFERENCE_SUBTRAHEND_STATES=53, PETRI_FLOW=14641, PETRI_PLACES=463, PETRI_TRANSITIONS=1433} [2024-11-22 17:48:29,905 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, 213 predicate places. [2024-11-22 17:48:29,905 INFO L471 AbstractCegarLoop]: Abstraction has has 463 places, 1433 transitions, 14641 flow [2024-11-22 17:48:29,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 171.8846153846154) internal successors, (4469), 26 states have internal predecessors, (4469), 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) [2024-11-22 17:48:29,907 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:29,907 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:29,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 17:48:29,907 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-22 17:48:29,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:29,908 INFO L85 PathProgramCache]: Analyzing trace with hash 745202937, now seen corresponding path program 3 times [2024-11-22 17:48:29,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:29,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776630059] [2024-11-22 17:48:29,908 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 17:48:29,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:30,036 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-22 17:48:30,037 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:48:33,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:33,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:33,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776630059] [2024-11-22 17:48:33,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776630059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:33,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:48:33,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2024-11-22 17:48:33,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676570600] [2024-11-22 17:48:33,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:33,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-22 17:48:33,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:33,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-22 17:48:33,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=958, Unknown=0, NotChecked=0, Total=1056 [2024-11-22 17:48:46,543 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 266 [2024-11-22 17:48:46,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 1433 transitions, 14641 flow. Second operand has 33 states, 33 states have (on average 128.78787878787878) internal successors, (4250), 33 states have internal predecessors, (4250), 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) [2024-11-22 17:48:46,547 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:46,547 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 266 [2024-11-22 17:48:46,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand