./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-divine/ring_1w1r-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-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.dk.perfect-tracechecks-8be7027-m [2024-11-12 12:27:31,464 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 12:27:31,527 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-12 12:27:31,533 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 12:27:31,535 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 12:27:31,557 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 12:27:31,558 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 12:27:31,558 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 12:27:31,559 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 12:27:31,560 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 12:27:31,560 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 12:27:31,560 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 12:27:31,561 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 12:27:31,561 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 12:27:31,561 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 12:27:31,562 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 12:27:31,563 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 12:27:31,563 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 12:27:31,563 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 12:27:31,563 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 12:27:31,563 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 12:27:31,566 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 12:27:31,566 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-12 12:27:31,566 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 12:27:31,567 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 12:27:31,567 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 12:27:31,567 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 12:27:31,567 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 12:27:31,567 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 12:27:31,568 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 12:27:31,568 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 12:27:31,568 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:27:31,568 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 12:27:31,568 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 12:27:31,569 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 12:27:31,569 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 12:27:31,569 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 12:27:31,571 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 12:27:31,572 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 12:27:31,572 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 12:27:31,572 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 12:27:31,572 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7e9feb6929ab81158cc9d6731414a71af210f92cb571da2954e02689fee6d2b [2024-11-12 12:27:31,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 12:27:31,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 12:27:31,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 12:27:31,795 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 12:27:31,795 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 12:27:31,796 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-divine/ring_1w1r-2.i [2024-11-12 12:27:33,027 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 12:27:33,236 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 12:27:33,237 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/ring_1w1r-2.i [2024-11-12 12:27:33,250 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a224e170/f24f06121a89471589a0ae5ee61d0222/FLAG3f5365407 [2024-11-12 12:27:33,270 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a224e170/f24f06121a89471589a0ae5ee61d0222 [2024-11-12 12:27:33,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 12:27:33,274 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 12:27:33,276 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 12:27:33,276 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 12:27:33,280 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 12:27:33,281 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:27:33" (1/1) ... [2024-11-12 12:27:33,282 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c09b0d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:33, skipping insertion in model container [2024-11-12 12:27:33,284 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:27:33" (1/1) ... [2024-11-12 12:27:33,320 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 12:27:33,654 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:27:33,662 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 12:27:33,722 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:27:33,830 INFO L204 MainTranslator]: Completed translation [2024-11-12 12:27:33,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:33 WrapperNode [2024-11-12 12:27:33,834 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 12:27:33,835 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 12:27:33,835 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 12:27:33,835 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 12:27:33,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:33" (1/1) ... [2024-11-12 12:27:33,865 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:33" (1/1) ... [2024-11-12 12:27:33,898 INFO L138 Inliner]: procedures = 223, calls = 39, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 221 [2024-11-12 12:27:33,899 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 12:27:33,899 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 12:27:33,900 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 12:27:33,900 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 12:27:33,908 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:33" (1/1) ... [2024-11-12 12:27:33,908 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:33" (1/1) ... [2024-11-12 12:27:33,913 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:33" (1/1) ... [2024-11-12 12:27:33,916 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:33" (1/1) ... [2024-11-12 12:27:33,930 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:33" (1/1) ... [2024-11-12 12:27:33,937 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:33" (1/1) ... [2024-11-12 12:27:33,939 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:33" (1/1) ... [2024-11-12 12:27:33,940 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:33" (1/1) ... [2024-11-12 12:27:33,942 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 12:27:33,943 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 12:27:33,943 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 12:27:33,943 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 12:27:33,944 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:33" (1/1) ... [2024-11-12 12:27:33,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:27:33,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:27:33,973 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 12:27:33,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 12:27:34,014 INFO L130 BoogieDeclarations]: Found specification of procedure reader_fn [2024-11-12 12:27:34,014 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_fn [2024-11-12 12:27:34,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 12:27:34,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 12:27:34,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-12 12:27:34,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-12 12:27:34,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 12:27:34,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-12 12:27:34,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 12:27:34,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 12:27:34,016 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 12:27:34,128 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 12:27:34,130 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 12:27:34,418 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 12:27:34,419 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 12:27:34,435 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 12:27:34,435 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-12 12:27:34,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:27:34 BoogieIcfgContainer [2024-11-12 12:27:34,436 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 12:27:34,438 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 12:27:34,438 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 12:27:34,440 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 12:27:34,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:27:33" (1/3) ... [2024-11-12 12:27:34,441 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30fd8b57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:27:34, skipping insertion in model container [2024-11-12 12:27:34,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:27:33" (2/3) ... [2024-11-12 12:27:34,441 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30fd8b57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:27:34, skipping insertion in model container [2024-11-12 12:27:34,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:27:34" (3/3) ... [2024-11-12 12:27:34,442 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_1w1r-2.i [2024-11-12 12:27:34,455 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 12:27:34,455 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-11-12 12:27:34,455 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 12:27:34,537 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-12 12:27:34,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 257 places, 266 transitions, 539 flow [2024-11-12 12:27:34,648 INFO L124 PetriNetUnfolderBase]: 13/265 cut-off events. [2024-11-12 12:27:34,651 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 12:27:34,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 265 events. 13/265 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 539 event pairs, 0 based on Foata normal form. 0/236 useless extension candidates. Maximal degree in co-relation 215. Up to 2 conditions per place. [2024-11-12 12:27:34,662 INFO L82 GeneralOperation]: Start removeDead. Operand has 257 places, 266 transitions, 539 flow [2024-11-12 12:27:34,669 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 250 places, 259 transitions, 521 flow [2024-11-12 12:27:34,681 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:27:34,689 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;@27ea9d63, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:27:34,690 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-12 12:27:34,699 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:27:34,699 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-11-12 12:27:34,699 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:27:34,700 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:27:34,700 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:27:34,701 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-12 12:27:34,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:27:34,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1008521894, now seen corresponding path program 1 times [2024-11-12 12:27:34,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:27:34,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753467325] [2024-11-12 12:27:34,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:27:34,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:27:34,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:27:35,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:27:35,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:27:35,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753467325] [2024-11-12 12:27:35,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753467325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:27:35,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:27:35,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:27:35,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482821463] [2024-11-12 12:27:35,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:27:35,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:27:35,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:27:35,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:27:35,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:27:35,760 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 266 [2024-11-12 12:27:35,766 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 259 transitions, 521 flow. Second operand has 6 states, 6 states have (on average 189.33333333333334) internal successors, (1136), 6 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:27:35,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:27:35,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 266 [2024-11-12 12:27:35,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:27:36,313 INFO L124 PetriNetUnfolderBase]: 927/4296 cut-off events. [2024-11-12 12:27:36,313 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 12:27:36,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6037 conditions, 4296 events. 927/4296 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 34093 event pairs, 768 based on Foata normal form. 398/4280 useless extension candidates. Maximal degree in co-relation 5978. Up to 1732 conditions per place. [2024-11-12 12:27:36,340 INFO L140 encePairwiseOnDemand]: 251/266 looper letters, 62 selfloop transitions, 5 changer transitions 0/246 dead transitions. [2024-11-12 12:27:36,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 246 transitions, 629 flow [2024-11-12 12:27:36,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:27:36,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:27:36,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1205 transitions. [2024-11-12 12:27:36,359 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7550125313283208 [2024-11-12 12:27:36,362 INFO L175 Difference]: Start difference. First operand has 250 places, 259 transitions, 521 flow. Second operand 6 states and 1205 transitions. [2024-11-12 12:27:36,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 246 transitions, 629 flow [2024-11-12 12:27:36,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 246 transitions, 628 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:27:36,372 INFO L231 Difference]: Finished difference. Result has 250 places, 246 transitions, 504 flow [2024-11-12 12:27:36,373 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=504, PETRI_PLACES=250, PETRI_TRANSITIONS=246} [2024-11-12 12:27:36,379 INFO L279 CegarLoopForPetriNet]: 250 programPoint places, 0 predicate places. [2024-11-12 12:27:36,379 INFO L471 AbstractCegarLoop]: Abstraction has has 250 places, 246 transitions, 504 flow [2024-11-12 12:27:36,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 189.33333333333334) internal successors, (1136), 6 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:27:36,380 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:27:36,381 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:27:36,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 12:27:36,382 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-12 12:27:36,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:27:36,383 INFO L85 PathProgramCache]: Analyzing trace with hash 143388735, now seen corresponding path program 1 times [2024-11-12 12:27:36,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:27:36,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370349309] [2024-11-12 12:27:36,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:27:36,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:27:36,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:27:36,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:27:36,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:27:36,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370349309] [2024-11-12 12:27:36,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370349309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:27:36,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:27:36,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:27:36,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39096422] [2024-11-12 12:27:36,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:27:36,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:27:36,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:27:36,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:27:36,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:27:36,947 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 266 [2024-11-12 12:27:36,948 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 246 transitions, 504 flow. Second operand has 6 states, 6 states have (on average 189.33333333333334) internal successors, (1136), 6 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:27:36,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:27:36,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 266 [2024-11-12 12:27:36,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:27:37,482 INFO L124 PetriNetUnfolderBase]: 927/4295 cut-off events. [2024-11-12 12:27:37,483 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:27:37,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6041 conditions, 4295 events. 927/4295 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 34050 event pairs, 768 based on Foata normal form. 0/3882 useless extension candidates. Maximal degree in co-relation 5990. Up to 1732 conditions per place. [2024-11-12 12:27:37,505 INFO L140 encePairwiseOnDemand]: 260/266 looper letters, 62 selfloop transitions, 5 changer transitions 0/245 dead transitions. [2024-11-12 12:27:37,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 245 transitions, 636 flow [2024-11-12 12:27:37,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:27:37,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:27:37,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1196 transitions. [2024-11-12 12:27:37,508 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7493734335839599 [2024-11-12 12:27:37,508 INFO L175 Difference]: Start difference. First operand has 250 places, 246 transitions, 504 flow. Second operand 6 states and 1196 transitions. [2024-11-12 12:27:37,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 245 transitions, 636 flow [2024-11-12 12:27:37,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 245 transitions, 626 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-12 12:27:37,513 INFO L231 Difference]: Finished difference. Result has 249 places, 245 transitions, 502 flow [2024-11-12 12:27:37,514 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=502, PETRI_PLACES=249, PETRI_TRANSITIONS=245} [2024-11-12 12:27:37,515 INFO L279 CegarLoopForPetriNet]: 250 programPoint places, -1 predicate places. [2024-11-12 12:27:37,515 INFO L471 AbstractCegarLoop]: Abstraction has has 249 places, 245 transitions, 502 flow [2024-11-12 12:27:37,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 189.33333333333334) internal successors, (1136), 6 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:27:37,516 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:27:37,516 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:27:37,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 12:27:37,516 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-12 12:27:37,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:27:37,517 INFO L85 PathProgramCache]: Analyzing trace with hash -2017236769, now seen corresponding path program 1 times [2024-11-12 12:27:37,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:27:37,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428626981] [2024-11-12 12:27:37,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:27:37,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:27:37,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:27:37,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:27:37,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:27:37,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428626981] [2024-11-12 12:27:37,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428626981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:27:37,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:27:37,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:27:37,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340644241] [2024-11-12 12:27:37,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:27:37,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:27:37,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:27:37,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:27:37,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:27:38,258 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 266 [2024-11-12 12:27:38,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 245 transitions, 502 flow. Second operand has 6 states, 6 states have (on average 219.66666666666666) internal successors, (1318), 6 states have internal predecessors, (1318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:27:38,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:27:38,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 266 [2024-11-12 12:27:38,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:27:38,532 INFO L124 PetriNetUnfolderBase]: 330/2437 cut-off events. [2024-11-12 12:27:38,533 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 12:27:38,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3046 conditions, 2437 events. 330/2437 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 18133 event pairs, 94 based on Foata normal form. 0/2164 useless extension candidates. Maximal degree in co-relation 2994. Up to 494 conditions per place. [2024-11-12 12:27:38,545 INFO L140 encePairwiseOnDemand]: 244/266 looper letters, 37 selfloop transitions, 44 changer transitions 0/287 dead transitions. [2024-11-12 12:27:38,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 287 transitions, 748 flow [2024-11-12 12:27:38,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:27:38,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:27:38,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1385 transitions. [2024-11-12 12:27:38,548 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8677944862155389 [2024-11-12 12:27:38,548 INFO L175 Difference]: Start difference. First operand has 249 places, 245 transitions, 502 flow. Second operand 6 states and 1385 transitions. [2024-11-12 12:27:38,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 287 transitions, 748 flow [2024-11-12 12:27:38,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 287 transitions, 738 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-12 12:27:38,554 INFO L231 Difference]: Finished difference. Result has 254 places, 287 transitions, 792 flow [2024-11-12 12:27:38,554 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=792, PETRI_PLACES=254, PETRI_TRANSITIONS=287} [2024-11-12 12:27:38,555 INFO L279 CegarLoopForPetriNet]: 250 programPoint places, 4 predicate places. [2024-11-12 12:27:38,555 INFO L471 AbstractCegarLoop]: Abstraction has has 254 places, 287 transitions, 792 flow [2024-11-12 12:27:38,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 219.66666666666666) internal successors, (1318), 6 states have internal predecessors, (1318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:27:38,556 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:27:38,556 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:27:38,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 12:27:38,556 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-12 12:27:38,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:27:38,557 INFO L85 PathProgramCache]: Analyzing trace with hash -903695032, now seen corresponding path program 1 times [2024-11-12 12:27:38,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:27:38,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369383483] [2024-11-12 12:27:38,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:27:38,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:27:38,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:27:38,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:27:38,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:27:38,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369383483] [2024-11-12 12:27:38,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369383483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:27:38,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:27:38,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:27:38,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603081757] [2024-11-12 12:27:38,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:27:38,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:27:38,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:27:38,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:27:38,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:27:39,278 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 266 [2024-11-12 12:27:39,280 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 287 transitions, 792 flow. Second operand has 6 states, 6 states have (on average 215.66666666666666) internal successors, (1294), 6 states have internal predecessors, (1294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:27:39,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:27:39,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 266 [2024-11-12 12:27:39,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:27:39,789 INFO L124 PetriNetUnfolderBase]: 485/4433 cut-off events. [2024-11-12 12:27:39,789 INFO L125 PetriNetUnfolderBase]: For 587/765 co-relation queries the response was YES. [2024-11-12 12:27:39,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6525 conditions, 4433 events. 485/4433 cut-off events. For 587/765 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 37641 event pairs, 73 based on Foata normal form. 68/4125 useless extension candidates. Maximal degree in co-relation 6465. Up to 613 conditions per place. [2024-11-12 12:27:39,817 INFO L140 encePairwiseOnDemand]: 242/266 looper letters, 80 selfloop transitions, 41 changer transitions 0/333 dead transitions. [2024-11-12 12:27:39,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 333 transitions, 1162 flow [2024-11-12 12:27:39,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:27:39,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:27:39,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1362 transitions. [2024-11-12 12:27:39,819 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8533834586466166 [2024-11-12 12:27:39,819 INFO L175 Difference]: Start difference. First operand has 254 places, 287 transitions, 792 flow. Second operand 6 states and 1362 transitions. [2024-11-12 12:27:39,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 333 transitions, 1162 flow [2024-11-12 12:27:39,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 333 transitions, 1162 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:27:39,829 INFO L231 Difference]: Finished difference. Result has 264 places, 327 transitions, 1134 flow [2024-11-12 12:27:39,829 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=792, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1134, PETRI_PLACES=264, PETRI_TRANSITIONS=327} [2024-11-12 12:27:39,830 INFO L279 CegarLoopForPetriNet]: 250 programPoint places, 14 predicate places. [2024-11-12 12:27:39,830 INFO L471 AbstractCegarLoop]: Abstraction has has 264 places, 327 transitions, 1134 flow [2024-11-12 12:27:39,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 215.66666666666666) internal successors, (1294), 6 states have internal predecessors, (1294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:27:39,831 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:27:39,831 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:27:39,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 12:27:39,832 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting reader_fnErr1ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-12 12:27:39,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:27:39,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1844824793, now seen corresponding path program 1 times [2024-11-12 12:27:39,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:27:39,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837293286] [2024-11-12 12:27:39,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:27:39,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:27:39,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:27:40,051 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-12 12:27:40,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:27:40,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837293286] [2024-11-12 12:27:40,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837293286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:27:40,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:27:40,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:27:40,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144582831] [2024-11-12 12:27:40,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:27:40,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:27:40,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:27:40,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:27:40,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:27:40,477 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 266 [2024-11-12 12:27:40,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 327 transitions, 1134 flow. Second operand has 6 states, 6 states have (on average 219.66666666666666) internal successors, (1318), 6 states have internal predecessors, (1318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:27:40,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:27:40,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 266 [2024-11-12 12:27:40,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:27:41,038 INFO L124 PetriNetUnfolderBase]: 735/5267 cut-off events. [2024-11-12 12:27:41,038 INFO L125 PetriNetUnfolderBase]: For 2499/3038 co-relation queries the response was YES. [2024-11-12 12:27:41,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9546 conditions, 5267 events. 735/5267 cut-off events. For 2499/3038 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 45717 event pairs, 80 based on Foata normal form. 106/4992 useless extension candidates. Maximal degree in co-relation 9481. Up to 1019 conditions per place. [2024-11-12 12:27:41,070 INFO L140 encePairwiseOnDemand]: 244/266 looper letters, 95 selfloop transitions, 86 changer transitions 0/409 dead transitions. [2024-11-12 12:27:41,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 409 transitions, 1968 flow [2024-11-12 12:27:41,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:27:41,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:27:41,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1385 transitions. [2024-11-12 12:27:41,073 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8677944862155389 [2024-11-12 12:27:41,073 INFO L175 Difference]: Start difference. First operand has 264 places, 327 transitions, 1134 flow. Second operand 6 states and 1385 transitions. [2024-11-12 12:27:41,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 409 transitions, 1968 flow [2024-11-12 12:27:41,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 409 transitions, 1968 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:27:41,087 INFO L231 Difference]: Finished difference. Result has 274 places, 409 transitions, 2010 flow [2024-11-12 12:27:41,088 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=1134, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2010, PETRI_PLACES=274, PETRI_TRANSITIONS=409} [2024-11-12 12:27:41,088 INFO L279 CegarLoopForPetriNet]: 250 programPoint places, 24 predicate places. [2024-11-12 12:27:41,088 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 409 transitions, 2010 flow [2024-11-12 12:27:41,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 219.66666666666666) internal successors, (1318), 6 states have internal predecessors, (1318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:27:41,089 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:27:41,089 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:27:41,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 12:27:41,090 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-12 12:27:41,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:27:41,090 INFO L85 PathProgramCache]: Analyzing trace with hash 2101041956, now seen corresponding path program 1 times [2024-11-12 12:27:41,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:27:41,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226186256] [2024-11-12 12:27:41,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:27:41,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:27:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:27:41,320 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-12 12:27:41,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:27:41,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226186256] [2024-11-12 12:27:41,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226186256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:27:41,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:27:41,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:27:41,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554316375] [2024-11-12 12:27:41,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:27:41,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:27:41,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:27:41,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:27:41,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:27:41,828 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 266 [2024-11-12 12:27:41,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 409 transitions, 2010 flow. Second operand has 6 states, 6 states have (on average 232.66666666666666) internal successors, (1396), 6 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:27:41,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:27:41,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 266 [2024-11-12 12:27:41,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:27:42,520 INFO L124 PetriNetUnfolderBase]: 881/6062 cut-off events. [2024-11-12 12:27:42,521 INFO L125 PetriNetUnfolderBase]: For 5263/5996 co-relation queries the response was YES. [2024-11-12 12:27:42,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12056 conditions, 6062 events. 881/6062 cut-off events. For 5263/5996 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 54646 event pairs, 48 based on Foata normal form. 249/5927 useless extension candidates. Maximal degree in co-relation 11986. Up to 705 conditions per place. [2024-11-12 12:27:42,559 INFO L140 encePairwiseOnDemand]: 255/266 looper letters, 98 selfloop transitions, 62 changer transitions 0/470 dead transitions. [2024-11-12 12:27:42,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 470 transitions, 2686 flow [2024-11-12 12:27:42,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:27:42,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:27:42,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1432 transitions. [2024-11-12 12:27:42,562 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8972431077694235 [2024-11-12 12:27:42,562 INFO L175 Difference]: Start difference. First operand has 274 places, 409 transitions, 2010 flow. Second operand 6 states and 1432 transitions. [2024-11-12 12:27:42,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 470 transitions, 2686 flow [2024-11-12 12:27:42,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 470 transitions, 2686 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:27:42,582 INFO L231 Difference]: Finished difference. Result has 284 places, 467 transitions, 2678 flow [2024-11-12 12:27:42,583 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=2010, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2678, PETRI_PLACES=284, PETRI_TRANSITIONS=467} [2024-11-12 12:27:42,583 INFO L279 CegarLoopForPetriNet]: 250 programPoint places, 34 predicate places. [2024-11-12 12:27:42,584 INFO L471 AbstractCegarLoop]: Abstraction has has 284 places, 467 transitions, 2678 flow [2024-11-12 12:27:42,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 232.66666666666666) internal successors, (1396), 6 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:27:42,584 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:27:42,584 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:27:42,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 12:27:42,585 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reader_fnErr2ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-12 12:27:42,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:27:42,586 INFO L85 PathProgramCache]: Analyzing trace with hash 846692282, now seen corresponding path program 1 times [2024-11-12 12:27:42,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:27:42,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051126088] [2024-11-12 12:27:42,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:27:42,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:27:42,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:27:42,797 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-12 12:27:42,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:27:42,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051126088] [2024-11-12 12:27:42,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051126088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:27:42,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:27:42,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:27:42,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987845075] [2024-11-12 12:27:42,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:27:42,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:27:42,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:27:42,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:27:42,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:27:43,186 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 266 [2024-11-12 12:27:43,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 467 transitions, 2678 flow. Second operand has 6 states, 6 states have (on average 221.66666666666666) internal successors, (1330), 6 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:27:43,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:27:43,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 266 [2024-11-12 12:27:43,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:27:43,988 INFO L124 PetriNetUnfolderBase]: 1106/7260 cut-off events. [2024-11-12 12:27:43,988 INFO L125 PetriNetUnfolderBase]: For 9785/10506 co-relation queries the response was YES. [2024-11-12 12:27:44,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15942 conditions, 7260 events. 1106/7260 cut-off events. For 9785/10506 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 69874 event pairs, 80 based on Foata normal form. 132/7005 useless extension candidates. Maximal degree in co-relation 15867. Up to 1305 conditions per place. [2024-11-12 12:27:44,029 INFO L140 encePairwiseOnDemand]: 245/266 looper letters, 215 selfloop transitions, 70 changer transitions 0/532 dead transitions. [2024-11-12 12:27:44,029 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 532 transitions, 3686 flow [2024-11-12 12:27:44,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:27:44,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:27:44,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1398 transitions. [2024-11-12 12:27:44,032 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8759398496240601 [2024-11-12 12:27:44,032 INFO L175 Difference]: Start difference. First operand has 284 places, 467 transitions, 2678 flow. Second operand 6 states and 1398 transitions. [2024-11-12 12:27:44,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 532 transitions, 3686 flow [2024-11-12 12:27:44,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 532 transitions, 3686 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:27:44,056 INFO L231 Difference]: Finished difference. Result has 294 places, 529 transitions, 3452 flow [2024-11-12 12:27:44,057 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=2678, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=467, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3452, PETRI_PLACES=294, PETRI_TRANSITIONS=529} [2024-11-12 12:27:44,058 INFO L279 CegarLoopForPetriNet]: 250 programPoint places, 44 predicate places. [2024-11-12 12:27:44,059 INFO L471 AbstractCegarLoop]: Abstraction has has 294 places, 529 transitions, 3452 flow [2024-11-12 12:27:44,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 221.66666666666666) internal successors, (1330), 6 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:27:44,060 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:27:44,060 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:27:44,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 12:27:44,061 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-12 12:27:44,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:27:44,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1592000322, now seen corresponding path program 1 times [2024-11-12 12:27:44,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:27:44,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272039056] [2024-11-12 12:27:44,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:27:44,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:27:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:27:44,379 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-12 12:27:44,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:27:44,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272039056] [2024-11-12 12:27:44,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272039056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:27:44,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:27:44,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:27:44,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986400638] [2024-11-12 12:27:44,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:27:44,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:27:44,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:27:44,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:27:44,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:27:44,654 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 266 [2024-11-12 12:27:44,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 529 transitions, 3452 flow. Second operand has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:27:44,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:27:44,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 266 [2024-11-12 12:27:44,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:27:46,794 INFO L124 PetriNetUnfolderBase]: 4630/15261 cut-off events. [2024-11-12 12:27:46,795 INFO L125 PetriNetUnfolderBase]: For 17969/18105 co-relation queries the response was YES. [2024-11-12 12:27:46,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41019 conditions, 15261 events. 4630/15261 cut-off events. For 17969/18105 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 139748 event pairs, 2055 based on Foata normal form. 40/14517 useless extension candidates. Maximal degree in co-relation 40939. Up to 8642 conditions per place. [2024-11-12 12:27:46,888 INFO L140 encePairwiseOnDemand]: 227/266 looper letters, 301 selfloop transitions, 208 changer transitions 0/694 dead transitions. [2024-11-12 12:27:46,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 694 transitions, 5296 flow [2024-11-12 12:27:46,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:27:46,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:27:46,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1300 transitions. [2024-11-12 12:27:46,895 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8145363408521303 [2024-11-12 12:27:46,895 INFO L175 Difference]: Start difference. First operand has 294 places, 529 transitions, 3452 flow. Second operand 6 states and 1300 transitions. [2024-11-12 12:27:46,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 694 transitions, 5296 flow [2024-11-12 12:27:46,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 694 transitions, 5124 flow, removed 86 selfloop flow, removed 0 redundant places. [2024-11-12 12:27:46,963 INFO L231 Difference]: Finished difference. Result has 304 places, 694 transitions, 5072 flow [2024-11-12 12:27:46,964 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=3292, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=529, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5072, PETRI_PLACES=304, PETRI_TRANSITIONS=694} [2024-11-12 12:27:46,966 INFO L279 CegarLoopForPetriNet]: 250 programPoint places, 54 predicate places. [2024-11-12 12:27:46,966 INFO L471 AbstractCegarLoop]: Abstraction has has 304 places, 694 transitions, 5072 flow [2024-11-12 12:27:46,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:27:46,967 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:27:46,967 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:27:46,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 12:27:46,967 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reader_fnErr3ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-12 12:27:46,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:27:46,968 INFO L85 PathProgramCache]: Analyzing trace with hash -941239682, now seen corresponding path program 1 times [2024-11-12 12:27:46,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:27:46,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093039998] [2024-11-12 12:27:46,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:27:46,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:27:46,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:27:47,230 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-12 12:27:47,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:27:47,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093039998] [2024-11-12 12:27:47,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093039998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:27:47,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:27:47,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:27:47,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103236537] [2024-11-12 12:27:47,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:27:47,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:27:47,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:27:47,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:27:47,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:27:47,719 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 266 [2024-11-12 12:27:47,720 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 694 transitions, 5072 flow. Second operand has 6 states, 6 states have (on average 226.83333333333334) internal successors, (1361), 6 states have internal predecessors, (1361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:27:47,720 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:27:47,720 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 266 [2024-11-12 12:27:47,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:27:48,946 INFO L124 PetriNetUnfolderBase]: 1691/9069 cut-off events. [2024-11-12 12:27:48,947 INFO L125 PetriNetUnfolderBase]: For 21880/23602 co-relation queries the response was YES. [2024-11-12 12:27:48,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24170 conditions, 9069 events. 1691/9069 cut-off events. For 21880/23602 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 88418 event pairs, 109 based on Foata normal form. 230/8896 useless extension candidates. Maximal degree in co-relation 24085. Up to 1674 conditions per place. [2024-11-12 12:27:49,008 INFO L140 encePairwiseOnDemand]: 251/266 looper letters, 311 selfloop transitions, 92 changer transitions 0/781 dead transitions. [2024-11-12 12:27:49,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 781 transitions, 6716 flow [2024-11-12 12:27:49,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:27:49,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:27:49,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1414 transitions. [2024-11-12 12:27:49,015 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8859649122807017 [2024-11-12 12:27:49,015 INFO L175 Difference]: Start difference. First operand has 304 places, 694 transitions, 5072 flow. Second operand 6 states and 1414 transitions. [2024-11-12 12:27:49,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 781 transitions, 6716 flow [2024-11-12 12:27:49,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 781 transitions, 6528 flow, removed 94 selfloop flow, removed 0 redundant places. [2024-11-12 12:27:49,103 INFO L231 Difference]: Finished difference. Result has 314 places, 781 transitions, 6152 flow [2024-11-12 12:27:49,104 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=4884, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=694, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=659, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=6152, PETRI_PLACES=314, PETRI_TRANSITIONS=781} [2024-11-12 12:27:49,104 INFO L279 CegarLoopForPetriNet]: 250 programPoint places, 64 predicate places. [2024-11-12 12:27:49,105 INFO L471 AbstractCegarLoop]: Abstraction has has 314 places, 781 transitions, 6152 flow [2024-11-12 12:27:49,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 226.83333333333334) internal successors, (1361), 6 states have internal predecessors, (1361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:27:49,106 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:27:49,106 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:27:49,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 12:27:49,107 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-12 12:27:49,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:27:49,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1974966499, now seen corresponding path program 1 times [2024-11-12 12:27:49,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:27:49,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444472480] [2024-11-12 12:27:49,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:27:49,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:27:49,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:27:50,855 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 12:27:50,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:27:50,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444472480] [2024-11-12 12:27:50,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444472480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:27:50,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:27:50,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-12 12:27:50,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634721679] [2024-11-12 12:27:50,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:27:50,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-12 12:27:50,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:27:50,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-12 12:27:50,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2024-11-12 12:27:57,572 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 266 [2024-11-12 12:27:57,575 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 781 transitions, 6152 flow. Second operand has 24 states, 24 states have (on average 180.79166666666666) internal successors, (4339), 24 states have internal predecessors, (4339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:27:57,575 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:27:57,575 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 266 [2024-11-12 12:27:57,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:28:05,343 INFO L124 PetriNetUnfolderBase]: 6159/25819 cut-off events. [2024-11-12 12:28:05,344 INFO L125 PetriNetUnfolderBase]: For 48869/50293 co-relation queries the response was YES. [2024-11-12 12:28:05,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73821 conditions, 25819 events. 6159/25819 cut-off events. For 48869/50293 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 290510 event pairs, 539 based on Foata normal form. 417/25234 useless extension candidates. Maximal degree in co-relation 73722. Up to 5362 conditions per place. [2024-11-12 12:28:05,607 INFO L140 encePairwiseOnDemand]: 214/266 looper letters, 985 selfloop transitions, 252 changer transitions 12/1587 dead transitions. [2024-11-12 12:28:05,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 1587 transitions, 14582 flow [2024-11-12 12:28:05,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-12 12:28:05,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2024-11-12 12:28:05,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 6557 transitions. [2024-11-12 12:28:05,621 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7250110570544007 [2024-11-12 12:28:05,622 INFO L175 Difference]: Start difference. First operand has 314 places, 781 transitions, 6152 flow. Second operand 34 states and 6557 transitions. [2024-11-12 12:28:05,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 1587 transitions, 14582 flow [2024-11-12 12:28:05,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 1587 transitions, 14262 flow, removed 160 selfloop flow, removed 0 redundant places. [2024-11-12 12:28:05,927 INFO L231 Difference]: Finished difference. Result has 374 places, 1023 transitions, 9135 flow [2024-11-12 12:28:05,928 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=5976, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=781, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=674, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=9135, PETRI_PLACES=374, PETRI_TRANSITIONS=1023} [2024-11-12 12:28:05,929 INFO L279 CegarLoopForPetriNet]: 250 programPoint places, 124 predicate places. [2024-11-12 12:28:05,930 INFO L471 AbstractCegarLoop]: Abstraction has has 374 places, 1023 transitions, 9135 flow [2024-11-12 12:28:05,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 180.79166666666666) internal successors, (4339), 24 states have internal predecessors, (4339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:28:05,931 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:28:05,931 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:28:05,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-12 12:28:05,932 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-12 12:28:05,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:28:05,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1549883357, now seen corresponding path program 2 times [2024-11-12 12:28:05,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:28:05,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249058153] [2024-11-12 12:28:05,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:28:05,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:28:05,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:28:07,459 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 12:28:07,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:28:07,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249058153] [2024-11-12 12:28:07,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249058153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:28:07,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:28:07,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2024-11-12 12:28:07,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108376198] [2024-11-12 12:28:07,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:28:07,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-12 12:28:07,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:28:07,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-12 12:28:07,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=578, Unknown=0, NotChecked=0, Total=650 [2024-11-12 12:28:13,661 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 266 [2024-11-12 12:28:13,664 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 1023 transitions, 9135 flow. Second operand has 26 states, 26 states have (on average 171.8846153846154) internal successors, (4469), 26 states have internal predecessors, (4469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:28:13,664 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:28:13,664 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 266 [2024-11-12 12:28:13,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:28:28,292 INFO L124 PetriNetUnfolderBase]: 13135/46549 cut-off events. [2024-11-12 12:28:28,292 INFO L125 PetriNetUnfolderBase]: For 155560/157614 co-relation queries the response was YES. [2024-11-12 12:28:29,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161605 conditions, 46549 events. 13135/46549 cut-off events. For 155560/157614 co-relation queries the response was YES. Maximal size of possible extension queue 587. Compared 543239 event pairs, 1117 based on Foata normal form. 612/45743 useless extension candidates. Maximal degree in co-relation 161470. Up to 7646 conditions per place. [2024-11-12 12:28:29,179 INFO L140 encePairwiseOnDemand]: 220/266 looper letters, 2054 selfloop transitions, 391 changer transitions 32/2771 dead transitions. [2024-11-12 12:28:29,179 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 2771 transitions, 30649 flow [2024-11-12 12:28:29,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-11-12 12:28:29,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2024-11-12 12:28:29,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 9726 transitions. [2024-11-12 12:28:29,189 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6898850900836998 [2024-11-12 12:28:29,189 INFO L175 Difference]: Start difference. First operand has 374 places, 1023 transitions, 9135 flow. Second operand 53 states and 9726 transitions. [2024-11-12 12:28:29,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 2771 transitions, 30649 flow [2024-11-12 12:28:29,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 2771 transitions, 30638 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-12 12:28:29,910 INFO L231 Difference]: Finished difference. Result has 463 places, 1433 transitions, 14641 flow [2024-11-12 12:28:29,911 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=9124, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1023, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=873, PETRI_DIFFERENCE_SUBTRAHEND_STATES=53, PETRI_FLOW=14641, PETRI_PLACES=463, PETRI_TRANSITIONS=1433} [2024-11-12 12:28:29,912 INFO L279 CegarLoopForPetriNet]: 250 programPoint places, 213 predicate places. [2024-11-12 12:28:29,912 INFO L471 AbstractCegarLoop]: Abstraction has has 463 places, 1433 transitions, 14641 flow [2024-11-12 12:28:29,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 171.8846153846154) internal successors, (4469), 26 states have internal predecessors, (4469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:28:29,913 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:28:29,914 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:28:29,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-12 12:28:29,914 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reader_fnErr0ASSERT_VIOLATIONDATA_RACE === [reader_fnErr6ASSERT_VIOLATIONDATA_RACE, reader_fnErr0ASSERT_VIOLATIONDATA_RACE, reader_fnErr7ASSERT_VIOLATIONDATA_RACE, reader_fnErr1ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-12 12:28:29,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:28:29,914 INFO L85 PathProgramCache]: Analyzing trace with hash 745202937, now seen corresponding path program 3 times [2024-11-12 12:28:29,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:28:29,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169253673] [2024-11-12 12:28:29,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:28:29,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:28:29,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:28:33,954 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 12:28:33,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:28:33,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169253673] [2024-11-12 12:28:33,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169253673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:28:33,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:28:33,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2024-11-12 12:28:33,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057828272] [2024-11-12 12:28:33,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:28:33,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-12 12:28:33,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:28:33,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-12 12:28:33,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=958, Unknown=0, NotChecked=0, Total=1056 [2024-11-12 12:28:44,749 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 266 [2024-11-12 12:28:44,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 1433 transitions, 14641 flow. Second operand has 33 states, 33 states have (on average 128.78787878787878) internal successors, (4250), 33 states have internal predecessors, (4250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:28:44,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:28:44,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 266 [2024-11-12 12:28:44,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand