./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-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-wip.fs.cvc5-61a6796-m [2024-10-14 17:02:45,272 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 17:02:45,343 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-14 17:02:45,350 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 17:02:45,351 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 17:02:45,384 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 17:02:45,385 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 17:02:45,385 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 17:02:45,386 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 17:02:45,386 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 17:02:45,387 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 17:02:45,387 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 17:02:45,387 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 17:02:45,388 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 17:02:45,389 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 17:02:45,390 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 17:02:45,392 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 17:02:45,392 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 17:02:45,393 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 17:02:45,393 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 17:02:45,393 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 17:02:45,394 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 17:02:45,394 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-14 17:02:45,394 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 17:02:45,395 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 17:02:45,395 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 17:02:45,395 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 17:02:45,396 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 17:02:45,396 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 17:02:45,396 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 17:02:45,397 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 17:02:45,397 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:02:45,397 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 17:02:45,398 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 17:02:45,398 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 17:02:45,399 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 17:02:45,399 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 17:02:45,399 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 17:02:45,399 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 17:02:45,400 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 17:02:45,400 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 17:02:45,400 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7e9feb6929ab81158cc9d6731414a71af210f92cb571da2954e02689fee6d2b [2024-10-14 17:02:45,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 17:02:45,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 17:02:45,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 17:02:45,680 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 17:02:45,681 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 17:02:45,682 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i [2024-10-14 17:02:47,129 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 17:02:47,388 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 17:02:47,389 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i [2024-10-14 17:02:47,413 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/116aed29c/2724db98016c4ca0963dd836a2761373/FLAG8d96b1afb [2024-10-14 17:02:47,430 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/116aed29c/2724db98016c4ca0963dd836a2761373 [2024-10-14 17:02:47,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 17:02:47,433 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 17:02:47,436 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 17:02:47,437 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 17:02:47,442 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 17:02:47,443 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:02:47" (1/1) ... [2024-10-14 17:02:47,444 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@370eff59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:47, skipping insertion in model container [2024-10-14 17:02:47,444 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:02:47" (1/1) ... [2024-10-14 17:02:47,489 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 17:02:47,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:02:47,916 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 17:02:47,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:02:48,032 INFO L204 MainTranslator]: Completed translation [2024-10-14 17:02:48,033 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:48 WrapperNode [2024-10-14 17:02:48,033 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 17:02:48,035 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 17:02:48,035 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 17:02:48,035 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 17:02:48,042 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:48" (1/1) ... [2024-10-14 17:02:48,066 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:48" (1/1) ... [2024-10-14 17:02:48,111 INFO L138 Inliner]: procedures = 223, calls = 39, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 221 [2024-10-14 17:02:48,111 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 17:02:48,112 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 17:02:48,112 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 17:02:48,112 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 17:02:48,122 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:48" (1/1) ... [2024-10-14 17:02:48,122 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:48" (1/1) ... [2024-10-14 17:02:48,128 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:48" (1/1) ... [2024-10-14 17:02:48,132 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:48" (1/1) ... [2024-10-14 17:02:48,160 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:48" (1/1) ... [2024-10-14 17:02:48,164 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:48" (1/1) ... [2024-10-14 17:02:48,166 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:48" (1/1) ... [2024-10-14 17:02:48,168 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:48" (1/1) ... [2024-10-14 17:02:48,171 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 17:02:48,172 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 17:02:48,172 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 17:02:48,173 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 17:02:48,176 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:48" (1/1) ... [2024-10-14 17:02:48,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:02:48,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:02:48,229 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) [2024-10-14 17:02:48,232 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 [2024-10-14 17:02:48,277 INFO L130 BoogieDeclarations]: Found specification of procedure reader_fn [2024-10-14 17:02:48,277 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_fn [2024-10-14 17:02:48,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-14 17:02:48,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-14 17:02:48,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-14 17:02:48,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-14 17:02:48,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 17:02:48,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-14 17:02:48,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 17:02:48,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 17:02:48,282 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 17:02:48,401 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 17:02:48,403 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 17:02:48,874 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 17:02:48,874 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 17:02:48,894 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 17:02:48,894 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-14 17:02:48,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:02:48 BoogieIcfgContainer [2024-10-14 17:02:48,895 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 17:02:48,897 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 17:02:48,897 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 17:02:48,901 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 17:02:48,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:02:47" (1/3) ... [2024-10-14 17:02:48,902 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd2e3f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:02:48, skipping insertion in model container [2024-10-14 17:02:48,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:02:48" (2/3) ... [2024-10-14 17:02:48,902 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd2e3f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:02:48, skipping insertion in model container [2024-10-14 17:02:48,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:02:48" (3/3) ... [2024-10-14 17:02:48,903 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_1w1r-2.i [2024-10-14 17:02:48,920 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 17:02:48,921 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-10-14 17:02:48,921 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 17:02:49,054 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-14 17:02:49,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 257 places, 266 transitions, 539 flow [2024-10-14 17:02:49,210 INFO L124 PetriNetUnfolderBase]: 13/265 cut-off events. [2024-10-14 17:02:49,210 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 17:02:49,229 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. [2024-10-14 17:02:49,229 INFO L82 GeneralOperation]: Start removeDead. Operand has 257 places, 266 transitions, 539 flow [2024-10-14 17:02:49,241 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 250 places, 259 transitions, 521 flow [2024-10-14 17:02:49,254 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 17:02:49,264 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;@4591e836, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 17:02:49,264 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-10-14 17:02:49,271 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 17:02:49,272 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-10-14 17:02:49,272 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:02:49,272 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:02:49,273 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] [2024-10-14 17:02:49,273 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)] === [2024-10-14 17:02:49,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:02:49,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1008521894, now seen corresponding path program 1 times [2024-10-14 17:02:49,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:02:49,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246023343] [2024-10-14 17:02:49,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:02:49,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:02:49,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:02:50,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:02:50,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:02:50,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246023343] [2024-10-14 17:02:50,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246023343] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:02:50,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:02:50,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:02:50,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158013008] [2024-10-14 17:02:50,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:02:50,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:02:50,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:02:50,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:02:50,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:02:50,741 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 266 [2024-10-14 17:02:50,746 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) [2024-10-14 17:02:50,746 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:02:50,746 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 266 [2024-10-14 17:02:50,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:02:51,347 INFO L124 PetriNetUnfolderBase]: 927/4296 cut-off events. [2024-10-14 17:02:51,347 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 17:02:51,363 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. [2024-10-14 17:02:51,381 INFO L140 encePairwiseOnDemand]: 251/266 looper letters, 62 selfloop transitions, 5 changer transitions 0/246 dead transitions. [2024-10-14 17:02:51,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 246 transitions, 629 flow [2024-10-14 17:02:51,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:02:51,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:02:51,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1205 transitions. [2024-10-14 17:02:51,452 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7550125313283208 [2024-10-14 17:02:51,455 INFO L175 Difference]: Start difference. First operand has 250 places, 259 transitions, 521 flow. Second operand 6 states and 1205 transitions. [2024-10-14 17:02:51,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 246 transitions, 629 flow [2024-10-14 17:02:51,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 246 transitions, 628 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:02:51,468 INFO L231 Difference]: Finished difference. Result has 250 places, 246 transitions, 504 flow [2024-10-14 17:02:51,471 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} [2024-10-14 17:02:51,475 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, 0 predicate places. [2024-10-14 17:02:51,478 INFO L471 AbstractCegarLoop]: Abstraction has has 250 places, 246 transitions, 504 flow [2024-10-14 17:02:51,479 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) [2024-10-14 17:02:51,479 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:02:51,479 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] [2024-10-14 17:02:51,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 17:02:51,481 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)] === [2024-10-14 17:02:51,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:02:51,482 INFO L85 PathProgramCache]: Analyzing trace with hash 143388735, now seen corresponding path program 1 times [2024-10-14 17:02:51,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:02:51,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911151464] [2024-10-14 17:02:51,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:02:51,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:02:51,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:02:51,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:02:51,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:02:51,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911151464] [2024-10-14 17:02:51,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911151464] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:02:51,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:02:51,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:02:51,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716507959] [2024-10-14 17:02:51,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:02:51,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:02:51,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:02:51,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:02:51,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:02:52,217 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 266 [2024-10-14 17:02:52,219 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) [2024-10-14 17:02:52,219 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:02:52,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 266 [2024-10-14 17:02:52,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:02:52,844 INFO L124 PetriNetUnfolderBase]: 927/4295 cut-off events. [2024-10-14 17:02:52,844 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:02:52,853 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. [2024-10-14 17:02:52,867 INFO L140 encePairwiseOnDemand]: 260/266 looper letters, 62 selfloop transitions, 5 changer transitions 0/245 dead transitions. [2024-10-14 17:02:52,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 245 transitions, 636 flow [2024-10-14 17:02:52,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:02:52,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:02:52,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1196 transitions. [2024-10-14 17:02:52,870 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7493734335839599 [2024-10-14 17:02:52,870 INFO L175 Difference]: Start difference. First operand has 250 places, 246 transitions, 504 flow. Second operand 6 states and 1196 transitions. [2024-10-14 17:02:52,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 245 transitions, 636 flow [2024-10-14 17:02:52,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 245 transitions, 626 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 17:02:52,877 INFO L231 Difference]: Finished difference. Result has 249 places, 245 transitions, 502 flow [2024-10-14 17:02:52,878 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} [2024-10-14 17:02:52,878 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, -1 predicate places. [2024-10-14 17:02:52,879 INFO L471 AbstractCegarLoop]: Abstraction has has 249 places, 245 transitions, 502 flow [2024-10-14 17:02:52,881 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) [2024-10-14 17:02:52,882 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:02:52,882 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] [2024-10-14 17:02:52,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 17:02:52,883 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)] === [2024-10-14 17:02:52,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:02:52,884 INFO L85 PathProgramCache]: Analyzing trace with hash -2017236769, now seen corresponding path program 1 times [2024-10-14 17:02:52,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:02:52,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865040846] [2024-10-14 17:02:52,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:02:52,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:02:52,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:02:53,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:02:53,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:02:53,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865040846] [2024-10-14 17:02:53,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865040846] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:02:53,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:02:53,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:02:53,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906403059] [2024-10-14 17:02:53,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:02:53,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:02:53,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:02:53,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:02:53,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:02:53,817 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 266 [2024-10-14 17:02:53,819 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) [2024-10-14 17:02:53,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:02:53,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 266 [2024-10-14 17:02:53,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:02:54,169 INFO L124 PetriNetUnfolderBase]: 330/2437 cut-off events. [2024-10-14 17:02:54,172 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 17:02:54,179 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. [2024-10-14 17:02:54,186 INFO L140 encePairwiseOnDemand]: 244/266 looper letters, 37 selfloop transitions, 44 changer transitions 0/287 dead transitions. [2024-10-14 17:02:54,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 287 transitions, 748 flow [2024-10-14 17:02:54,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:02:54,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:02:54,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1385 transitions. [2024-10-14 17:02:54,189 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8677944862155389 [2024-10-14 17:02:54,189 INFO L175 Difference]: Start difference. First operand has 249 places, 245 transitions, 502 flow. Second operand 6 states and 1385 transitions. [2024-10-14 17:02:54,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 287 transitions, 748 flow [2024-10-14 17:02:54,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 287 transitions, 738 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 17:02:54,197 INFO L231 Difference]: Finished difference. Result has 254 places, 287 transitions, 792 flow [2024-10-14 17:02:54,198 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} [2024-10-14 17:02:54,199 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, 4 predicate places. [2024-10-14 17:02:54,200 INFO L471 AbstractCegarLoop]: Abstraction has has 254 places, 287 transitions, 792 flow [2024-10-14 17:02:54,201 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) [2024-10-14 17:02:54,201 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:02:54,201 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] [2024-10-14 17:02:54,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 17:02:54,201 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)] === [2024-10-14 17:02:54,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:02:54,202 INFO L85 PathProgramCache]: Analyzing trace with hash -903695032, now seen corresponding path program 1 times [2024-10-14 17:02:54,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:02:54,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318247372] [2024-10-14 17:02:54,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:02:54,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:02:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:02:54,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:02:54,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:02:54,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318247372] [2024-10-14 17:02:54,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318247372] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:02:54,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:02:54,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:02:54,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809632081] [2024-10-14 17:02:54,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:02:54,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:02:54,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:02:54,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:02:54,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:02:55,145 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 266 [2024-10-14 17:02:55,148 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) [2024-10-14 17:02:55,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:02:55,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 266 [2024-10-14 17:02:55,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:02:55,838 INFO L124 PetriNetUnfolderBase]: 485/4433 cut-off events. [2024-10-14 17:02:55,838 INFO L125 PetriNetUnfolderBase]: For 587/765 co-relation queries the response was YES. [2024-10-14 17:02:55,851 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. [2024-10-14 17:02:55,863 INFO L140 encePairwiseOnDemand]: 242/266 looper letters, 80 selfloop transitions, 41 changer transitions 0/333 dead transitions. [2024-10-14 17:02:55,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 333 transitions, 1162 flow [2024-10-14 17:02:55,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:02:55,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:02:55,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1362 transitions. [2024-10-14 17:02:55,867 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8533834586466166 [2024-10-14 17:02:55,867 INFO L175 Difference]: Start difference. First operand has 254 places, 287 transitions, 792 flow. Second operand 6 states and 1362 transitions. [2024-10-14 17:02:55,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 333 transitions, 1162 flow [2024-10-14 17:02:55,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 333 transitions, 1162 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:02:55,881 INFO L231 Difference]: Finished difference. Result has 264 places, 327 transitions, 1134 flow [2024-10-14 17:02:55,881 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} [2024-10-14 17:02:55,882 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, 14 predicate places. [2024-10-14 17:02:55,882 INFO L471 AbstractCegarLoop]: Abstraction has has 264 places, 327 transitions, 1134 flow [2024-10-14 17:02:55,883 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) [2024-10-14 17:02:55,883 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:02:55,884 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] [2024-10-14 17:02:55,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 17:02:55,884 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)] === [2024-10-14 17:02:55,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:02:55,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1844824793, now seen corresponding path program 1 times [2024-10-14 17:02:55,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:02:55,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385539864] [2024-10-14 17:02:55,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:02:55,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:02:55,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:02:56,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:02:56,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:02:56,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385539864] [2024-10-14 17:02:56,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385539864] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:02:56,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:02:56,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:02:56,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591268520] [2024-10-14 17:02:56,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:02:56,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:02:56,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:02:56,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:02:56,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:02:56,705 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 266 [2024-10-14 17:02:56,707 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) [2024-10-14 17:02:56,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:02:56,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 266 [2024-10-14 17:02:56,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:02:57,466 INFO L124 PetriNetUnfolderBase]: 735/5267 cut-off events. [2024-10-14 17:02:57,467 INFO L125 PetriNetUnfolderBase]: For 2499/3038 co-relation queries the response was YES. [2024-10-14 17:02:57,486 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. [2024-10-14 17:02:57,508 INFO L140 encePairwiseOnDemand]: 244/266 looper letters, 95 selfloop transitions, 86 changer transitions 0/409 dead transitions. [2024-10-14 17:02:57,508 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 409 transitions, 1968 flow [2024-10-14 17:02:57,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:02:57,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:02:57,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1385 transitions. [2024-10-14 17:02:57,512 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8677944862155389 [2024-10-14 17:02:57,512 INFO L175 Difference]: Start difference. First operand has 264 places, 327 transitions, 1134 flow. Second operand 6 states and 1385 transitions. [2024-10-14 17:02:57,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 409 transitions, 1968 flow [2024-10-14 17:02:57,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 409 transitions, 1968 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:02:57,530 INFO L231 Difference]: Finished difference. Result has 274 places, 409 transitions, 2010 flow [2024-10-14 17:02:57,531 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} [2024-10-14 17:02:57,532 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, 24 predicate places. [2024-10-14 17:02:57,532 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 409 transitions, 2010 flow [2024-10-14 17:02:57,533 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) [2024-10-14 17:02:57,533 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:02:57,534 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] [2024-10-14 17:02:57,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 17:02:57,535 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)] === [2024-10-14 17:02:57,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:02:57,536 INFO L85 PathProgramCache]: Analyzing trace with hash 2101041956, now seen corresponding path program 1 times [2024-10-14 17:02:57,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:02:57,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148359441] [2024-10-14 17:02:57,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:02:57,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:02:57,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:02:57,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:02:57,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:02:57,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148359441] [2024-10-14 17:02:57,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148359441] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:02:57,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:02:57,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:02:57,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984139163] [2024-10-14 17:02:57,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:02:57,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:02:57,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:02:57,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:02:57,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:02:58,463 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 266 [2024-10-14 17:02:58,465 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) [2024-10-14 17:02:58,465 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:02:58,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 266 [2024-10-14 17:02:58,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:02:59,325 INFO L124 PetriNetUnfolderBase]: 881/6062 cut-off events. [2024-10-14 17:02:59,326 INFO L125 PetriNetUnfolderBase]: For 5263/5996 co-relation queries the response was YES. [2024-10-14 17:02:59,354 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. [2024-10-14 17:02:59,372 INFO L140 encePairwiseOnDemand]: 255/266 looper letters, 98 selfloop transitions, 62 changer transitions 0/470 dead transitions. [2024-10-14 17:02:59,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 470 transitions, 2686 flow [2024-10-14 17:02:59,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:02:59,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:02:59,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1432 transitions. [2024-10-14 17:02:59,377 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8972431077694235 [2024-10-14 17:02:59,377 INFO L175 Difference]: Start difference. First operand has 274 places, 409 transitions, 2010 flow. Second operand 6 states and 1432 transitions. [2024-10-14 17:02:59,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 470 transitions, 2686 flow [2024-10-14 17:02:59,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 470 transitions, 2686 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:02:59,403 INFO L231 Difference]: Finished difference. Result has 284 places, 467 transitions, 2678 flow [2024-10-14 17:02:59,404 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} [2024-10-14 17:02:59,406 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, 34 predicate places. [2024-10-14 17:02:59,406 INFO L471 AbstractCegarLoop]: Abstraction has has 284 places, 467 transitions, 2678 flow [2024-10-14 17:02:59,407 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) [2024-10-14 17:02:59,407 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:02:59,407 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] [2024-10-14 17:02:59,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 17:02:59,407 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)] === [2024-10-14 17:02:59,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:02:59,408 INFO L85 PathProgramCache]: Analyzing trace with hash 846692282, now seen corresponding path program 1 times [2024-10-14 17:02:59,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:02:59,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216703653] [2024-10-14 17:02:59,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:02:59,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:02:59,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:02:59,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:02:59,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:02:59,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216703653] [2024-10-14 17:02:59,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216703653] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:02:59,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:02:59,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:02:59,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151279320] [2024-10-14 17:02:59,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:02:59,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:02:59,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:02:59,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:02:59,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:03:00,360 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 266 [2024-10-14 17:03:00,362 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) [2024-10-14 17:03:00,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:03:00,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 266 [2024-10-14 17:03:00,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:03:01,298 INFO L124 PetriNetUnfolderBase]: 1106/7260 cut-off events. [2024-10-14 17:03:01,299 INFO L125 PetriNetUnfolderBase]: For 9785/10506 co-relation queries the response was YES. [2024-10-14 17:03:01,344 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. [2024-10-14 17:03:01,371 INFO L140 encePairwiseOnDemand]: 245/266 looper letters, 215 selfloop transitions, 70 changer transitions 0/532 dead transitions. [2024-10-14 17:03:01,371 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 532 transitions, 3686 flow [2024-10-14 17:03:01,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:03:01,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:03:01,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1398 transitions. [2024-10-14 17:03:01,375 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8759398496240601 [2024-10-14 17:03:01,375 INFO L175 Difference]: Start difference. First operand has 284 places, 467 transitions, 2678 flow. Second operand 6 states and 1398 transitions. [2024-10-14 17:03:01,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 532 transitions, 3686 flow [2024-10-14 17:03:01,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 532 transitions, 3686 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:03:01,410 INFO L231 Difference]: Finished difference. Result has 294 places, 529 transitions, 3452 flow [2024-10-14 17:03:01,411 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} [2024-10-14 17:03:01,412 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, 44 predicate places. [2024-10-14 17:03:01,412 INFO L471 AbstractCegarLoop]: Abstraction has has 294 places, 529 transitions, 3452 flow [2024-10-14 17:03:01,413 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) [2024-10-14 17:03:01,413 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:03:01,414 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] [2024-10-14 17:03:01,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 17:03:01,414 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)] === [2024-10-14 17:03:01,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:03:01,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1592000322, now seen corresponding path program 1 times [2024-10-14 17:03:01,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:03:01,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647944442] [2024-10-14 17:03:01,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:03:01,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:03:01,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:03:01,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:03:01,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:03:01,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647944442] [2024-10-14 17:03:01,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647944442] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:03:01,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:03:01,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:03:01,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919770115] [2024-10-14 17:03:01,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:03:01,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:03:01,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:03:01,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:03:01,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:03:02,117 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 266 [2024-10-14 17:03:02,118 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) [2024-10-14 17:03:02,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:03:02,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 266 [2024-10-14 17:03:02,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:03:04,649 INFO L124 PetriNetUnfolderBase]: 4630/15261 cut-off events. [2024-10-14 17:03:04,649 INFO L125 PetriNetUnfolderBase]: For 17969/18105 co-relation queries the response was YES. [2024-10-14 17:03:04,690 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. [2024-10-14 17:03:04,738 INFO L140 encePairwiseOnDemand]: 227/266 looper letters, 301 selfloop transitions, 208 changer transitions 0/694 dead transitions. [2024-10-14 17:03:04,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 694 transitions, 5296 flow [2024-10-14 17:03:04,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:03:04,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:03:04,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1300 transitions. [2024-10-14 17:03:04,741 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8145363408521303 [2024-10-14 17:03:04,741 INFO L175 Difference]: Start difference. First operand has 294 places, 529 transitions, 3452 flow. Second operand 6 states and 1300 transitions. [2024-10-14 17:03:04,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 694 transitions, 5296 flow [2024-10-14 17:03:04,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 694 transitions, 5124 flow, removed 86 selfloop flow, removed 0 redundant places. [2024-10-14 17:03:04,833 INFO L231 Difference]: Finished difference. Result has 304 places, 694 transitions, 5072 flow [2024-10-14 17:03:04,834 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} [2024-10-14 17:03:04,835 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, 54 predicate places. [2024-10-14 17:03:04,835 INFO L471 AbstractCegarLoop]: Abstraction has has 304 places, 694 transitions, 5072 flow [2024-10-14 17:03:04,837 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) [2024-10-14 17:03:04,837 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:03:04,837 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] [2024-10-14 17:03:04,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 17:03:04,837 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)] === [2024-10-14 17:03:04,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:03:04,838 INFO L85 PathProgramCache]: Analyzing trace with hash -941239682, now seen corresponding path program 1 times [2024-10-14 17:03:04,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:03:04,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608806279] [2024-10-14 17:03:04,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:03:04,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:03:04,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:03:05,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:03:05,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:03:05,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608806279] [2024-10-14 17:03:05,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608806279] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:03:05,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:03:05,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:03:05,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708581248] [2024-10-14 17:03:05,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:03:05,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:03:05,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:03:05,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:03:05,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:03:05,800 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 266 [2024-10-14 17:03:05,801 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) [2024-10-14 17:03:05,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:03:05,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 266 [2024-10-14 17:03:05,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:03:07,243 INFO L124 PetriNetUnfolderBase]: 1691/9069 cut-off events. [2024-10-14 17:03:07,244 INFO L125 PetriNetUnfolderBase]: For 21880/23602 co-relation queries the response was YES. [2024-10-14 17:03:07,277 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. [2024-10-14 17:03:07,310 INFO L140 encePairwiseOnDemand]: 251/266 looper letters, 311 selfloop transitions, 92 changer transitions 0/781 dead transitions. [2024-10-14 17:03:07,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 781 transitions, 6716 flow [2024-10-14 17:03:07,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:03:07,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:03:07,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1414 transitions. [2024-10-14 17:03:07,314 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8859649122807017 [2024-10-14 17:03:07,314 INFO L175 Difference]: Start difference. First operand has 304 places, 694 transitions, 5072 flow. Second operand 6 states and 1414 transitions. [2024-10-14 17:03:07,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 781 transitions, 6716 flow [2024-10-14 17:03:07,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 781 transitions, 6528 flow, removed 94 selfloop flow, removed 0 redundant places. [2024-10-14 17:03:07,433 INFO L231 Difference]: Finished difference. Result has 314 places, 781 transitions, 6152 flow [2024-10-14 17:03:07,434 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} [2024-10-14 17:03:07,435 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, 64 predicate places. [2024-10-14 17:03:07,435 INFO L471 AbstractCegarLoop]: Abstraction has has 314 places, 781 transitions, 6152 flow [2024-10-14 17:03:07,436 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) [2024-10-14 17:03:07,438 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:03:07,438 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] [2024-10-14 17:03:07,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 17:03:07,438 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)] === [2024-10-14 17:03:07,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:03:07,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1974966499, now seen corresponding path program 1 times [2024-10-14 17:03:07,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:03:07,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273514700] [2024-10-14 17:03:07,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:03:07,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:03:07,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:03:09,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:03:09,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:03:09,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273514700] [2024-10-14 17:03:09,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273514700] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:03:09,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:03:09,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-10-14 17:03:09,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386526636] [2024-10-14 17:03:09,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:03:09,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-14 17:03:09,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:03:09,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-14 17:03:09,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2024-10-14 17:03:18,141 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 266 [2024-10-14 17:03:18,145 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) [2024-10-14 17:03:18,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:03:18,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 266 [2024-10-14 17:03:18,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:03:26,014 INFO L124 PetriNetUnfolderBase]: 6159/25819 cut-off events. [2024-10-14 17:03:26,014 INFO L125 PetriNetUnfolderBase]: For 48869/50293 co-relation queries the response was YES. [2024-10-14 17:03:26,140 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. [2024-10-14 17:03:26,232 INFO L140 encePairwiseOnDemand]: 214/266 looper letters, 985 selfloop transitions, 252 changer transitions 12/1587 dead transitions. [2024-10-14 17:03:26,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 1587 transitions, 14582 flow [2024-10-14 17:03:26,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-10-14 17:03:26,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2024-10-14 17:03:26,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 6557 transitions. [2024-10-14 17:03:26,249 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7250110570544007 [2024-10-14 17:03:26,249 INFO L175 Difference]: Start difference. First operand has 314 places, 781 transitions, 6152 flow. Second operand 34 states and 6557 transitions. [2024-10-14 17:03:26,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 1587 transitions, 14582 flow [2024-10-14 17:03:26,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 1587 transitions, 14262 flow, removed 160 selfloop flow, removed 0 redundant places. [2024-10-14 17:03:26,613 INFO L231 Difference]: Finished difference. Result has 374 places, 1023 transitions, 9135 flow [2024-10-14 17:03:26,614 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} [2024-10-14 17:03:26,615 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, 124 predicate places. [2024-10-14 17:03:26,615 INFO L471 AbstractCegarLoop]: Abstraction has has 374 places, 1023 transitions, 9135 flow [2024-10-14 17:03:26,616 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) [2024-10-14 17:03:26,616 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:03:26,616 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] [2024-10-14 17:03:26,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 17:03:26,617 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)] === [2024-10-14 17:03:26,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:03:26,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1549883357, now seen corresponding path program 2 times [2024-10-14 17:03:26,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:03:26,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255439962] [2024-10-14 17:03:26,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:03:26,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:03:26,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:03:28,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:03:28,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:03:28,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255439962] [2024-10-14 17:03:28,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255439962] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:03:28,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:03:28,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2024-10-14 17:03:28,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237279687] [2024-10-14 17:03:28,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:03:28,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-14 17:03:28,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:03:28,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-14 17:03:28,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=578, Unknown=0, NotChecked=0, Total=650 [2024-10-14 17:03:36,079 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 266 [2024-10-14 17:03:36,081 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) [2024-10-14 17:03:36,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:03:36,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 266 [2024-10-14 17:03:36,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:03:51,244 INFO L124 PetriNetUnfolderBase]: 13135/46549 cut-off events. [2024-10-14 17:03:51,244 INFO L125 PetriNetUnfolderBase]: For 155560/157614 co-relation queries the response was YES. [2024-10-14 17:03:51,840 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. [2024-10-14 17:03:52,023 INFO L140 encePairwiseOnDemand]: 220/266 looper letters, 2054 selfloop transitions, 391 changer transitions 32/2771 dead transitions. [2024-10-14 17:03:52,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 2771 transitions, 30649 flow [2024-10-14 17:03:52,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-10-14 17:03:52,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2024-10-14 17:03:52,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 9726 transitions. [2024-10-14 17:03:52,044 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6898850900836998 [2024-10-14 17:03:52,044 INFO L175 Difference]: Start difference. First operand has 374 places, 1023 transitions, 9135 flow. Second operand 53 states and 9726 transitions. [2024-10-14 17:03:52,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 2771 transitions, 30649 flow [2024-10-14 17:03:52,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 2771 transitions, 30638 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-14 17:03:52,872 INFO L231 Difference]: Finished difference. Result has 463 places, 1433 transitions, 14641 flow [2024-10-14 17:03:52,873 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} [2024-10-14 17:03:52,873 INFO L277 CegarLoopForPetriNet]: 250 programPoint places, 213 predicate places. [2024-10-14 17:03:52,873 INFO L471 AbstractCegarLoop]: Abstraction has has 463 places, 1433 transitions, 14641 flow [2024-10-14 17:03:52,875 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) [2024-10-14 17:03:52,875 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:03:52,875 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] [2024-10-14 17:03:52,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 17:03:52,876 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)] === [2024-10-14 17:03:52,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:03:52,876 INFO L85 PathProgramCache]: Analyzing trace with hash 745202937, now seen corresponding path program 3 times [2024-10-14 17:03:52,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:03:52,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974167092] [2024-10-14 17:03:52,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:03:52,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:03:52,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:03:57,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:03:57,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:03:57,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974167092] [2024-10-14 17:03:57,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974167092] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:03:57,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:03:57,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2024-10-14 17:03:57,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53505916] [2024-10-14 17:03:57,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:03:57,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-10-14 17:03:57,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:03:57,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-10-14 17:03:57,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=958, Unknown=0, NotChecked=0, Total=1056