./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3a956b76a4ba98ce13df4d83ef2fb7ffa0973225ecb152c14bcfbb55b6546601 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 14:27:14,452 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 14:27:14,525 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-10 14:27:14,530 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 14:27:14,531 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 14:27:14,559 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 14:27:14,560 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 14:27:14,560 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 14:27:14,560 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 14:27:14,561 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 14:27:14,561 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 14:27:14,561 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 14:27:14,562 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 14:27:14,564 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 14:27:14,564 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 14:27:14,564 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 14:27:14,566 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 14:27:14,566 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 14:27:14,569 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 14:27:14,569 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 14:27:14,569 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 14:27:14,570 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 14:27:14,570 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-10 14:27:14,570 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 14:27:14,570 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 14:27:14,571 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 14:27:14,571 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 14:27:14,571 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 14:27:14,571 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 14:27:14,572 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 14:27:14,572 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 14:27:14,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:27:14,572 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 14:27:14,572 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 14:27:14,573 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 14:27:14,573 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 14:27:14,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 14:27:14,576 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 14:27:14,576 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 14:27:14,576 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 14:27:14,577 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 14:27:14,578 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a956b76a4ba98ce13df4d83ef2fb7ffa0973225ecb152c14bcfbb55b6546601 [2024-11-10 14:27:14,884 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 14:27:14,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 14:27:14,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 14:27:14,918 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 14:27:14,918 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 14:27:14,920 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i [2024-11-10 14:27:16,265 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 14:27:16,556 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 14:27:16,557 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i [2024-11-10 14:27:16,577 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90051492b/6fb6df2461bf4b94b2b0ffee435b0b97/FLAG47308bc20 [2024-11-10 14:27:16,598 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90051492b/6fb6df2461bf4b94b2b0ffee435b0b97 [2024-11-10 14:27:16,600 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 14:27:16,602 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 14:27:16,603 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 14:27:16,603 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 14:27:16,609 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 14:27:16,610 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:27:16" (1/1) ... [2024-11-10 14:27:16,610 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@754f3b84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:27:16, skipping insertion in model container [2024-11-10 14:27:16,611 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:27:16" (1/1) ... [2024-11-10 14:27:16,666 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 14:27:17,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:27:17,170 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 14:27:17,227 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:27:17,281 INFO L204 MainTranslator]: Completed translation [2024-11-10 14:27:17,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:27:17 WrapperNode [2024-11-10 14:27:17,282 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 14:27:17,283 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 14:27:17,283 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 14:27:17,283 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 14:27:17,291 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:27:17" (1/1) ... [2024-11-10 14:27:17,318 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:27:17" (1/1) ... [2024-11-10 14:27:17,361 INFO L138 Inliner]: procedures = 224, calls = 44, calls flagged for inlining = 16, calls inlined = 10, statements flattened = 194 [2024-11-10 14:27:17,365 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 14:27:17,366 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 14:27:17,366 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 14:27:17,366 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 14:27:17,375 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:27:17" (1/1) ... [2024-11-10 14:27:17,376 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:27:17" (1/1) ... [2024-11-10 14:27:17,384 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:27:17" (1/1) ... [2024-11-10 14:27:17,385 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:27:17" (1/1) ... [2024-11-10 14:27:17,405 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:27:17" (1/1) ... [2024-11-10 14:27:17,410 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:27:17" (1/1) ... [2024-11-10 14:27:17,412 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:27:17" (1/1) ... [2024-11-10 14:27:17,418 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:27:17" (1/1) ... [2024-11-10 14:27:17,421 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 14:27:17,425 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 14:27:17,425 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 14:27:17,425 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 14:27:17,426 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:27:17" (1/1) ... [2024-11-10 14:27:17,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:27:17,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:27:17,463 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) [2024-11-10 14:27:17,467 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 [2024-11-10 14:27:17,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 14:27:17,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 14:27:17,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-10 14:27:17,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-10 14:27:17,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 14:27:17,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-10 14:27:17,510 INFO L130 BoogieDeclarations]: Found specification of procedure reader_nowait_fn [2024-11-10 14:27:17,510 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_nowait_fn [2024-11-10 14:27:17,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 14:27:17,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 14:27:17,512 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 14:27:17,626 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 14:27:17,628 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 14:27:17,822 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L820: havoc ring_empty_#t~mem15#1; [2024-11-10 14:27:17,822 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L820-1: havoc ring_empty_#t~mem14#1; [2024-11-10 14:27:18,029 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 14:27:18,029 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 14:27:18,051 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 14:27:18,052 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 14:27:18,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:27:18 BoogieIcfgContainer [2024-11-10 14:27:18,053 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 14:27:18,054 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 14:27:18,056 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 14:27:18,060 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 14:27:18,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:27:16" (1/3) ... [2024-11-10 14:27:18,061 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2990193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:27:18, skipping insertion in model container [2024-11-10 14:27:18,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:27:17" (2/3) ... [2024-11-10 14:27:18,062 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2990193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:27:18, skipping insertion in model container [2024-11-10 14:27:18,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:27:18" (3/3) ... [2024-11-10 14:27:18,064 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_1w1r-1.i [2024-11-10 14:27:18,081 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 14:27:18,082 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-10 14:27:18,082 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 14:27:18,205 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-10 14:27:18,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 232 places, 240 transitions, 487 flow [2024-11-10 14:27:18,371 INFO L124 PetriNetUnfolderBase]: 12/239 cut-off events. [2024-11-10 14:27:18,371 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:27:18,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 239 events. 12/239 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 561 event pairs, 0 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 189. Up to 2 conditions per place. [2024-11-10 14:27:18,382 INFO L82 GeneralOperation]: Start removeDead. Operand has 232 places, 240 transitions, 487 flow [2024-11-10 14:27:18,389 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 225 places, 233 transitions, 469 flow [2024-11-10 14:27:18,405 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:27:18,413 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;@ee97966, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:27:18,415 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-10 14:27:18,422 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:27:18,423 INFO L124 PetriNetUnfolderBase]: 0/27 cut-off events. [2024-11-10 14:27:18,423 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:27:18,423 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:27:18,424 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:27:18,428 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr5ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-10 14:27:18,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:27:18,434 INFO L85 PathProgramCache]: Analyzing trace with hash 33791749, now seen corresponding path program 1 times [2024-11-10 14:27:18,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:27:18,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065578544] [2024-11-10 14:27:18,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:27:18,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:27:18,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:27:19,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:27:19,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:27:19,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065578544] [2024-11-10 14:27:19,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065578544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:27:19,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:27:19,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:27:19,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453149977] [2024-11-10 14:27:19,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:27:19,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:27:19,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:27:19,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:27:19,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:27:19,860 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 240 [2024-11-10 14:27:19,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 233 transitions, 469 flow. Second operand has 6 states, 6 states have (on average 171.33333333333334) internal successors, (1028), 6 states have internal predecessors, (1028), 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) [2024-11-10 14:27:19,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:27:19,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 240 [2024-11-10 14:27:19,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:27:20,393 INFO L124 PetriNetUnfolderBase]: 675/3125 cut-off events. [2024-11-10 14:27:20,394 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:27:20,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4420 conditions, 3125 events. 675/3125 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 24687 event pairs, 576 based on Foata normal form. 296/3117 useless extension candidates. Maximal degree in co-relation 4361. Up to 1286 conditions per place. [2024-11-10 14:27:20,423 INFO L140 encePairwiseOnDemand]: 225/240 looper letters, 54 selfloop transitions, 5 changer transitions 0/220 dead transitions. [2024-11-10 14:27:20,423 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 220 transitions, 561 flow [2024-11-10 14:27:20,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:27:20,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:27:20,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1089 transitions. [2024-11-10 14:27:20,446 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75625 [2024-11-10 14:27:20,449 INFO L175 Difference]: Start difference. First operand has 225 places, 233 transitions, 469 flow. Second operand 6 states and 1089 transitions. [2024-11-10 14:27:20,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 220 transitions, 561 flow [2024-11-10 14:27:20,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 220 transitions, 560 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:27:20,460 INFO L231 Difference]: Finished difference. Result has 225 places, 220 transitions, 452 flow [2024-11-10 14:27:20,463 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=452, PETRI_PLACES=225, PETRI_TRANSITIONS=220} [2024-11-10 14:27:20,468 INFO L277 CegarLoopForPetriNet]: 225 programPoint places, 0 predicate places. [2024-11-10 14:27:20,469 INFO L471 AbstractCegarLoop]: Abstraction has has 225 places, 220 transitions, 452 flow [2024-11-10 14:27:20,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 171.33333333333334) internal successors, (1028), 6 states have internal predecessors, (1028), 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) [2024-11-10 14:27:20,470 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:27:20,470 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:27:20,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 14:27:20,471 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr5ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-10 14:27:20,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:27:20,473 INFO L85 PathProgramCache]: Analyzing trace with hash -2069105253, now seen corresponding path program 1 times [2024-11-10 14:27:20,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:27:20,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278664428] [2024-11-10 14:27:20,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:27:20,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:27:20,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:27:20,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:27:20,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:27:20,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278664428] [2024-11-10 14:27:20,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278664428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:27:20,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:27:20,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:27:20,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548394214] [2024-11-10 14:27:20,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:27:20,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:27:20,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:27:20,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:27:20,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:27:21,184 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 240 [2024-11-10 14:27:21,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 220 transitions, 452 flow. Second operand has 6 states, 6 states have (on average 171.33333333333334) internal successors, (1028), 6 states have internal predecessors, (1028), 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) [2024-11-10 14:27:21,186 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:27:21,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 240 [2024-11-10 14:27:21,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:27:21,573 INFO L124 PetriNetUnfolderBase]: 675/3124 cut-off events. [2024-11-10 14:27:21,573 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:27:21,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4424 conditions, 3124 events. 675/3124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 24712 event pairs, 576 based on Foata normal form. 0/2821 useless extension candidates. Maximal degree in co-relation 4373. Up to 1286 conditions per place. [2024-11-10 14:27:21,592 INFO L140 encePairwiseOnDemand]: 234/240 looper letters, 54 selfloop transitions, 5 changer transitions 0/219 dead transitions. [2024-11-10 14:27:21,592 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 219 transitions, 568 flow [2024-11-10 14:27:21,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:27:21,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:27:21,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1080 transitions. [2024-11-10 14:27:21,595 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-11-10 14:27:21,596 INFO L175 Difference]: Start difference. First operand has 225 places, 220 transitions, 452 flow. Second operand 6 states and 1080 transitions. [2024-11-10 14:27:21,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 219 transitions, 568 flow [2024-11-10 14:27:21,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 219 transitions, 558 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:27:21,603 INFO L231 Difference]: Finished difference. Result has 224 places, 219 transitions, 450 flow [2024-11-10 14:27:21,604 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=450, PETRI_PLACES=224, PETRI_TRANSITIONS=219} [2024-11-10 14:27:21,605 INFO L277 CegarLoopForPetriNet]: 225 programPoint places, -1 predicate places. [2024-11-10 14:27:21,605 INFO L471 AbstractCegarLoop]: Abstraction has has 224 places, 219 transitions, 450 flow [2024-11-10 14:27:21,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 171.33333333333334) internal successors, (1028), 6 states have internal predecessors, (1028), 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) [2024-11-10 14:27:21,606 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:27:21,607 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:27:21,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 14:27:21,607 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting reader_nowait_fnErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr5ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-10 14:27:21,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:27:21,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1944644190, now seen corresponding path program 1 times [2024-11-10 14:27:21,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:27:21,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748733245] [2024-11-10 14:27:21,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:27:21,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:27:21,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:27:21,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:27:21,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:27:21,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748733245] [2024-11-10 14:27:21,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748733245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:27:21,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:27:21,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:27:21,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825536811] [2024-11-10 14:27:21,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:27:21,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:27:21,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:27:22,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:27:22,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:27:22,570 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 240 [2024-11-10 14:27:22,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 219 transitions, 450 flow. Second operand has 6 states, 6 states have (on average 195.66666666666666) internal successors, (1174), 6 states have internal predecessors, (1174), 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) [2024-11-10 14:27:22,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:27:22,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 240 [2024-11-10 14:27:22,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:27:22,965 INFO L124 PetriNetUnfolderBase]: 311/2103 cut-off events. [2024-11-10 14:27:22,965 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:27:22,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2702 conditions, 2103 events. 311/2103 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 14342 event pairs, 64 based on Foata normal form. 0/1886 useless extension candidates. Maximal degree in co-relation 2650. Up to 452 conditions per place. [2024-11-10 14:27:22,980 INFO L140 encePairwiseOnDemand]: 219/240 looper letters, 39 selfloop transitions, 43 changer transitions 0/264 dead transitions. [2024-11-10 14:27:22,981 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 264 transitions, 704 flow [2024-11-10 14:27:22,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:27:22,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:27:22,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1242 transitions. [2024-11-10 14:27:22,984 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8625 [2024-11-10 14:27:22,984 INFO L175 Difference]: Start difference. First operand has 224 places, 219 transitions, 450 flow. Second operand 6 states and 1242 transitions. [2024-11-10 14:27:22,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 264 transitions, 704 flow [2024-11-10 14:27:22,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 264 transitions, 694 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:27:22,992 INFO L231 Difference]: Finished difference. Result has 229 places, 261 transitions, 736 flow [2024-11-10 14:27:22,993 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=736, PETRI_PLACES=229, PETRI_TRANSITIONS=261} [2024-11-10 14:27:22,994 INFO L277 CegarLoopForPetriNet]: 225 programPoint places, 4 predicate places. [2024-11-10 14:27:22,994 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 261 transitions, 736 flow [2024-11-10 14:27:22,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 195.66666666666666) internal successors, (1174), 6 states have internal predecessors, (1174), 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) [2024-11-10 14:27:22,995 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:27:22,995 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:27:22,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 14:27:22,996 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr5ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-10 14:27:22,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:27:22,996 INFO L85 PathProgramCache]: Analyzing trace with hash 857511880, now seen corresponding path program 1 times [2024-11-10 14:27:22,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:27:22,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037630165] [2024-11-10 14:27:22,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:27:22,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:27:23,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:27:23,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:27:23,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:27:23,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037630165] [2024-11-10 14:27:23,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037630165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:27:23,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:27:23,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 14:27:23,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807571768] [2024-11-10 14:27:23,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:27:23,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:27:23,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:27:23,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:27:23,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:27:23,071 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 240 [2024-11-10 14:27:23,072 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 261 transitions, 736 flow. Second operand has 3 states, 3 states have (on average 227.0) internal successors, (681), 3 states have internal predecessors, (681), 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) [2024-11-10 14:27:23,072 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:27:23,072 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 240 [2024-11-10 14:27:23,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:27:23,381 INFO L124 PetriNetUnfolderBase]: 353/2480 cut-off events. [2024-11-10 14:27:23,381 INFO L125 PetriNetUnfolderBase]: For 222/234 co-relation queries the response was YES. [2024-11-10 14:27:23,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3645 conditions, 2480 events. 353/2480 cut-off events. For 222/234 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 17196 event pairs, 16 based on Foata normal form. 1/2283 useless extension candidates. Maximal degree in co-relation 3593. Up to 342 conditions per place. [2024-11-10 14:27:23,399 INFO L140 encePairwiseOnDemand]: 237/240 looper letters, 3 selfloop transitions, 2 changer transitions 0/262 dead transitions. [2024-11-10 14:27:23,400 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 262 transitions, 748 flow [2024-11-10 14:27:23,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:27:23,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:27:23,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 684 transitions. [2024-11-10 14:27:23,402 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.95 [2024-11-10 14:27:23,402 INFO L175 Difference]: Start difference. First operand has 229 places, 261 transitions, 736 flow. Second operand 3 states and 684 transitions. [2024-11-10 14:27:23,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 262 transitions, 748 flow [2024-11-10 14:27:23,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 262 transitions, 748 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:27:23,413 INFO L231 Difference]: Finished difference. Result has 232 places, 262 transitions, 748 flow [2024-11-10 14:27:23,414 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=736, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=748, PETRI_PLACES=232, PETRI_TRANSITIONS=262} [2024-11-10 14:27:23,416 INFO L277 CegarLoopForPetriNet]: 225 programPoint places, 7 predicate places. [2024-11-10 14:27:23,416 INFO L471 AbstractCegarLoop]: Abstraction has has 232 places, 262 transitions, 748 flow [2024-11-10 14:27:23,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 227.0) internal successors, (681), 3 states have internal predecessors, (681), 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) [2024-11-10 14:27:23,417 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:27:23,417 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:27:23,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 14:27:23,419 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr5ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-10 14:27:23,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:27:23,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1759570125, now seen corresponding path program 1 times [2024-11-10 14:27:23,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:27:23,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064796149] [2024-11-10 14:27:23,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:27:23,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:27:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:27:23,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:27:23,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:27:23,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064796149] [2024-11-10 14:27:23,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064796149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:27:23,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:27:23,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:27:23,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823535234] [2024-11-10 14:27:23,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:27:23,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:27:23,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:27:23,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:27:23,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:27:24,141 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 240 [2024-11-10 14:27:24,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 262 transitions, 748 flow. Second operand has 6 states, 6 states have (on average 189.66666666666666) internal successors, (1138), 6 states have internal predecessors, (1138), 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) [2024-11-10 14:27:24,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:27:24,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 240 [2024-11-10 14:27:24,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:27:24,850 INFO L124 PetriNetUnfolderBase]: 810/5115 cut-off events. [2024-11-10 14:27:24,850 INFO L125 PetriNetUnfolderBase]: For 1072/1252 co-relation queries the response was YES. [2024-11-10 14:27:24,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8402 conditions, 5115 events. 810/5115 cut-off events. For 1072/1252 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 44588 event pairs, 132 based on Foata normal form. 70/4853 useless extension candidates. Maximal degree in co-relation 8340. Up to 1061 conditions per place. [2024-11-10 14:27:24,884 INFO L140 encePairwiseOnDemand]: 216/240 looper letters, 81 selfloop transitions, 45 changer transitions 0/312 dead transitions. [2024-11-10 14:27:24,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 312 transitions, 1160 flow [2024-11-10 14:27:24,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:27:24,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:27:24,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1206 transitions. [2024-11-10 14:27:24,888 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8375 [2024-11-10 14:27:24,888 INFO L175 Difference]: Start difference. First operand has 232 places, 262 transitions, 748 flow. Second operand 6 states and 1206 transitions. [2024-11-10 14:27:24,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 312 transitions, 1160 flow [2024-11-10 14:27:24,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 312 transitions, 1158 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:27:24,899 INFO L231 Difference]: Finished difference. Result has 241 places, 306 transitions, 1138 flow [2024-11-10 14:27:24,900 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1138, PETRI_PLACES=241, PETRI_TRANSITIONS=306} [2024-11-10 14:27:24,901 INFO L277 CegarLoopForPetriNet]: 225 programPoint places, 16 predicate places. [2024-11-10 14:27:24,902 INFO L471 AbstractCegarLoop]: Abstraction has has 241 places, 306 transitions, 1138 flow [2024-11-10 14:27:24,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 189.66666666666666) internal successors, (1138), 6 states have internal predecessors, (1138), 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) [2024-11-10 14:27:24,903 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:27:24,903 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:27:24,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 14:27:24,904 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr5ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-10 14:27:24,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:27:24,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1655956408, now seen corresponding path program 1 times [2024-11-10 14:27:24,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:27:24,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524292669] [2024-11-10 14:27:24,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:27:24,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:27:24,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:27:25,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:27:25,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:27:25,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524292669] [2024-11-10 14:27:25,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524292669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:27:25,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:27:25,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:27:25,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237552661] [2024-11-10 14:27:25,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:27:25,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:27:25,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:27:25,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:27:25,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:27:25,702 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 240 [2024-11-10 14:27:25,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 306 transitions, 1138 flow. Second operand has 6 states, 6 states have (on average 200.83333333333334) internal successors, (1205), 6 states have internal predecessors, (1205), 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) [2024-11-10 14:27:25,704 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:27:25,704 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 240 [2024-11-10 14:27:25,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:27:26,811 INFO L124 PetriNetUnfolderBase]: 1131/6900 cut-off events. [2024-11-10 14:27:26,811 INFO L125 PetriNetUnfolderBase]: For 5794/6712 co-relation queries the response was YES. [2024-11-10 14:27:26,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13245 conditions, 6900 events. 1131/6900 cut-off events. For 5794/6712 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 64408 event pairs, 149 based on Foata normal form. 183/6639 useless extension candidates. Maximal degree in co-relation 13179. Up to 1434 conditions per place. [2024-11-10 14:27:26,864 INFO L140 encePairwiseOnDemand]: 225/240 looper letters, 94 selfloop transitions, 78 changer transitions 0/383 dead transitions. [2024-11-10 14:27:26,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 383 transitions, 1940 flow [2024-11-10 14:27:26,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:27:26,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:27:26,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1258 transitions. [2024-11-10 14:27:26,868 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8736111111111111 [2024-11-10 14:27:26,868 INFO L175 Difference]: Start difference. First operand has 241 places, 306 transitions, 1138 flow. Second operand 6 states and 1258 transitions. [2024-11-10 14:27:26,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 383 transitions, 1940 flow [2024-11-10 14:27:26,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 383 transitions, 1940 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:27:26,891 INFO L231 Difference]: Finished difference. Result has 251 places, 383 transitions, 1956 flow [2024-11-10 14:27:26,891 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=1138, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1956, PETRI_PLACES=251, PETRI_TRANSITIONS=383} [2024-11-10 14:27:26,893 INFO L277 CegarLoopForPetriNet]: 225 programPoint places, 26 predicate places. [2024-11-10 14:27:26,893 INFO L471 AbstractCegarLoop]: Abstraction has has 251 places, 383 transitions, 1956 flow [2024-11-10 14:27:26,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 200.83333333333334) internal successors, (1205), 6 states have internal predecessors, (1205), 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) [2024-11-10 14:27:26,894 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:27:26,894 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:27:26,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 14:27:26,894 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr5ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-10 14:27:26,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:27:26,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1699196722, now seen corresponding path program 1 times [2024-11-10 14:27:26,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:27:26,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006607239] [2024-11-10 14:27:26,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:27:26,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:27:26,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:27:27,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:27:27,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:27:27,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006607239] [2024-11-10 14:27:27,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006607239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:27:27,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:27:27,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:27:27,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188703155] [2024-11-10 14:27:27,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:27:27,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:27:27,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:27:27,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:27:27,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:27:27,670 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 240 [2024-11-10 14:27:27,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 383 transitions, 1956 flow. Second operand has 6 states, 6 states have (on average 206.66666666666666) internal successors, (1240), 6 states have internal predecessors, (1240), 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) [2024-11-10 14:27:27,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:27:27,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 240 [2024-11-10 14:27:27,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:27:28,699 INFO L124 PetriNetUnfolderBase]: 1223/7488 cut-off events. [2024-11-10 14:27:28,699 INFO L125 PetriNetUnfolderBase]: For 7898/8783 co-relation queries the response was YES. [2024-11-10 14:27:28,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15297 conditions, 7488 events. 1223/7488 cut-off events. For 7898/8783 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 71317 event pairs, 99 based on Foata normal form. 192/7279 useless extension candidates. Maximal degree in co-relation 15226. Up to 1088 conditions per place. [2024-11-10 14:27:28,751 INFO L140 encePairwiseOnDemand]: 229/240 looper letters, 103 selfloop transitions, 66 changer transitions 0/448 dead transitions. [2024-11-10 14:27:28,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 448 transitions, 2726 flow [2024-11-10 14:27:28,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:27:28,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:27:28,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1276 transitions. [2024-11-10 14:27:28,755 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8861111111111111 [2024-11-10 14:27:28,756 INFO L175 Difference]: Start difference. First operand has 251 places, 383 transitions, 1956 flow. Second operand 6 states and 1276 transitions. [2024-11-10 14:27:28,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 448 transitions, 2726 flow [2024-11-10 14:27:28,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 448 transitions, 2726 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:27:28,782 INFO L231 Difference]: Finished difference. Result has 261 places, 445 transitions, 2718 flow [2024-11-10 14:27:28,783 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=1956, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2718, PETRI_PLACES=261, PETRI_TRANSITIONS=445} [2024-11-10 14:27:28,784 INFO L277 CegarLoopForPetriNet]: 225 programPoint places, 36 predicate places. [2024-11-10 14:27:28,784 INFO L471 AbstractCegarLoop]: Abstraction has has 261 places, 445 transitions, 2718 flow [2024-11-10 14:27:28,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 206.66666666666666) internal successors, (1240), 6 states have internal predecessors, (1240), 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) [2024-11-10 14:27:28,786 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:27:28,786 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:27:28,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 14:27:28,787 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reader_nowait_fnErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr5ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-10 14:27:28,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:27:28,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1502627065, now seen corresponding path program 1 times [2024-11-10 14:27:28,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:27:28,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766469707] [2024-11-10 14:27:28,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:27:28,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:27:28,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:27:29,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:27:29,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:27:29,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766469707] [2024-11-10 14:27:29,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766469707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:27:29,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:27:29,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:27:29,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146512393] [2024-11-10 14:27:29,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:27:29,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:27:29,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:27:29,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:27:29,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:27:29,503 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 240 [2024-11-10 14:27:29,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 445 transitions, 2718 flow. Second operand has 6 states, 6 states have (on average 169.16666666666666) internal successors, (1015), 6 states have internal predecessors, (1015), 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) [2024-11-10 14:27:29,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:27:29,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 240 [2024-11-10 14:27:29,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:27:32,114 INFO L124 PetriNetUnfolderBase]: 5261/16909 cut-off events. [2024-11-10 14:27:32,115 INFO L125 PetriNetUnfolderBase]: For 19327/19631 co-relation queries the response was YES. [2024-11-10 14:27:32,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44857 conditions, 16909 events. 5261/16909 cut-off events. For 19327/19631 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 161918 event pairs, 2287 based on Foata normal form. 55/16040 useless extension candidates. Maximal degree in co-relation 44781. Up to 9666 conditions per place. [2024-11-10 14:27:32,244 INFO L140 encePairwiseOnDemand]: 209/240 looper letters, 260 selfloop transitions, 156 changer transitions 0/576 dead transitions. [2024-11-10 14:27:32,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 576 transitions, 4286 flow [2024-11-10 14:27:32,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:27:32,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:27:32,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1152 transitions. [2024-11-10 14:27:32,248 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8 [2024-11-10 14:27:32,248 INFO L175 Difference]: Start difference. First operand has 261 places, 445 transitions, 2718 flow. Second operand 6 states and 1152 transitions. [2024-11-10 14:27:32,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 576 transitions, 4286 flow [2024-11-10 14:27:32,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 576 transitions, 4286 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:27:32,338 INFO L231 Difference]: Finished difference. Result has 271 places, 576 transitions, 4186 flow [2024-11-10 14:27:32,339 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=2718, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4186, PETRI_PLACES=271, PETRI_TRANSITIONS=576} [2024-11-10 14:27:32,340 INFO L277 CegarLoopForPetriNet]: 225 programPoint places, 46 predicate places. [2024-11-10 14:27:32,340 INFO L471 AbstractCegarLoop]: Abstraction has has 271 places, 576 transitions, 4186 flow [2024-11-10 14:27:32,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.16666666666666) internal successors, (1015), 6 states have internal predecessors, (1015), 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) [2024-11-10 14:27:32,341 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:27:32,341 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:27:32,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 14:27:32,342 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr5ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-10 14:27:32,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:27:32,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1346398346, now seen corresponding path program 1 times [2024-11-10 14:27:32,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:27:32,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100337036] [2024-11-10 14:27:32,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:27:32,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:27:32,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:27:32,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:27:32,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:27:32,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100337036] [2024-11-10 14:27:32,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100337036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:27:32,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:27:32,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:27:32,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176188083] [2024-11-10 14:27:32,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:27:32,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:27:32,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:27:32,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:27:32,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:27:33,114 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 240 [2024-11-10 14:27:33,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 576 transitions, 4186 flow. Second operand has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 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) [2024-11-10 14:27:33,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:27:33,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 240 [2024-11-10 14:27:33,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:27:35,973 INFO L124 PetriNetUnfolderBase]: 5567/17720 cut-off events. [2024-11-10 14:27:35,974 INFO L125 PetriNetUnfolderBase]: For 29414/29672 co-relation queries the response was YES. [2024-11-10 14:27:36,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53140 conditions, 17720 events. 5567/17720 cut-off events. For 29414/29672 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 170535 event pairs, 2232 based on Foata normal form. 12/16869 useless extension candidates. Maximal degree in co-relation 53059. Up to 9984 conditions per place. [2024-11-10 14:27:36,198 INFO L140 encePairwiseOnDemand]: 209/240 looper letters, 372 selfloop transitions, 167 changer transitions 0/703 dead transitions. [2024-11-10 14:27:36,198 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 703 transitions, 5930 flow [2024-11-10 14:27:36,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:27:36,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:27:36,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1152 transitions. [2024-11-10 14:27:36,201 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8 [2024-11-10 14:27:36,202 INFO L175 Difference]: Start difference. First operand has 271 places, 576 transitions, 4186 flow. Second operand 6 states and 1152 transitions. [2024-11-10 14:27:36,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 703 transitions, 5930 flow [2024-11-10 14:27:36,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 703 transitions, 5698 flow, removed 116 selfloop flow, removed 0 redundant places. [2024-11-10 14:27:36,322 INFO L231 Difference]: Finished difference. Result has 281 places, 703 transitions, 5394 flow [2024-11-10 14:27:36,323 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=3966, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=576, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=484, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5394, PETRI_PLACES=281, PETRI_TRANSITIONS=703} [2024-11-10 14:27:36,323 INFO L277 CegarLoopForPetriNet]: 225 programPoint places, 56 predicate places. [2024-11-10 14:27:36,323 INFO L471 AbstractCegarLoop]: Abstraction has has 281 places, 703 transitions, 5394 flow [2024-11-10 14:27:36,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 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) [2024-11-10 14:27:36,325 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:27:36,325 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:27:36,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 14:27:36,325 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr5ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-10 14:27:36,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:27:36,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1931851977, now seen corresponding path program 1 times [2024-11-10 14:27:36,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:27:36,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931349484] [2024-11-10 14:27:36,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:27:36,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:27:36,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:27:39,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:27:39,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:27:39,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931349484] [2024-11-10 14:27:39,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931349484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:27:39,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:27:39,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-10 14:27:39,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862349662] [2024-11-10 14:27:39,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:27:39,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-10 14:27:39,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:27:39,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-10 14:27:39,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=477, Unknown=0, NotChecked=0, Total=552 [2024-11-10 14:27:43,770 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 240 [2024-11-10 14:27:43,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 703 transitions, 5394 flow. Second operand has 24 states, 24 states have (on average 158.66666666666666) internal successors, (3808), 24 states have internal predecessors, (3808), 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) [2024-11-10 14:27:43,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:27:43,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 240 [2024-11-10 14:27:43,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:27:50,252 INFO L124 PetriNetUnfolderBase]: 6283/26136 cut-off events. [2024-11-10 14:27:50,252 INFO L125 PetriNetUnfolderBase]: For 58054/59603 co-relation queries the response was YES. [2024-11-10 14:27:50,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76536 conditions, 26136 events. 6283/26136 cut-off events. For 58054/59603 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 299217 event pairs, 825 based on Foata normal form. 333/25452 useless extension candidates. Maximal degree in co-relation 76442. Up to 7510 conditions per place. [2024-11-10 14:27:50,508 INFO L140 encePairwiseOnDemand]: 201/240 looper letters, 976 selfloop transitions, 193 changer transitions 0/1450 dead transitions. [2024-11-10 14:27:50,508 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 1450 transitions, 13954 flow [2024-11-10 14:27:50,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-10 14:27:50,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2024-11-10 14:27:50,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 5867 transitions. [2024-11-10 14:27:50,524 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6984523809523809 [2024-11-10 14:27:50,524 INFO L175 Difference]: Start difference. First operand has 281 places, 703 transitions, 5394 flow. Second operand 35 states and 5867 transitions. [2024-11-10 14:27:50,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 1450 transitions, 13954 flow [2024-11-10 14:27:50,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 1450 transitions, 13798 flow, removed 78 selfloop flow, removed 0 redundant places. [2024-11-10 14:27:50,773 INFO L231 Difference]: Finished difference. Result has 340 places, 904 transitions, 8395 flow [2024-11-10 14:27:50,775 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=5238, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=703, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=583, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=8395, PETRI_PLACES=340, PETRI_TRANSITIONS=904} [2024-11-10 14:27:50,776 INFO L277 CegarLoopForPetriNet]: 225 programPoint places, 115 predicate places. [2024-11-10 14:27:50,777 INFO L471 AbstractCegarLoop]: Abstraction has has 340 places, 904 transitions, 8395 flow [2024-11-10 14:27:50,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 158.66666666666666) internal successors, (3808), 24 states have internal predecessors, (3808), 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) [2024-11-10 14:27:50,778 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:27:50,779 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:27:50,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 14:27:50,779 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr5ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-10 14:27:50,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:27:50,780 INFO L85 PathProgramCache]: Analyzing trace with hash -337674597, now seen corresponding path program 2 times [2024-11-10 14:27:50,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:27:50,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918756348] [2024-11-10 14:27:50,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:27:50,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:27:50,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:27:53,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:27:53,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:27:53,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918756348] [2024-11-10 14:27:53,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918756348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:27:53,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:27:53,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-10 14:27:53,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775078163] [2024-11-10 14:27:53,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:27:53,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-10 14:27:53,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:27:53,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-10 14:27:53,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=482, Unknown=0, NotChecked=0, Total=552 [2024-11-10 14:27:58,997 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 240 [2024-11-10 14:27:59,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 904 transitions, 8395 flow. Second operand has 24 states, 24 states have (on average 158.66666666666666) internal successors, (3808), 24 states have internal predecessors, (3808), 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) [2024-11-10 14:27:59,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:27:59,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 240 [2024-11-10 14:27:59,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:28:07,206 INFO L124 PetriNetUnfolderBase]: 7613/30287 cut-off events. [2024-11-10 14:28:07,207 INFO L125 PetriNetUnfolderBase]: For 98310/100720 co-relation queries the response was YES. [2024-11-10 14:28:07,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98239 conditions, 30287 events. 7613/30287 cut-off events. For 98310/100720 co-relation queries the response was YES. Maximal size of possible extension queue 427. Compared 353607 event pairs, 1310 based on Foata normal form. 322/29308 useless extension candidates. Maximal degree in co-relation 98112. Up to 10341 conditions per place. [2024-11-10 14:28:07,677 INFO L140 encePairwiseOnDemand]: 209/240 looper letters, 904 selfloop transitions, 143 changer transitions 0/1328 dead transitions. [2024-11-10 14:28:07,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 1328 transitions, 14516 flow [2024-11-10 14:28:07,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-10 14:28:07,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2024-11-10 14:28:07,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 4379 transitions. [2024-11-10 14:28:07,688 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7017628205128205 [2024-11-10 14:28:07,688 INFO L175 Difference]: Start difference. First operand has 340 places, 904 transitions, 8395 flow. Second operand 26 states and 4379 transitions. [2024-11-10 14:28:07,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 1328 transitions, 14516 flow [2024-11-10 14:28:08,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 1328 transitions, 14475 flow, removed 15 selfloop flow, removed 6 redundant places. [2024-11-10 14:28:08,080 INFO L231 Difference]: Finished difference. Result has 377 places, 1025 transitions, 10773 flow [2024-11-10 14:28:08,081 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=8354, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=904, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=806, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=10773, PETRI_PLACES=377, PETRI_TRANSITIONS=1025} [2024-11-10 14:28:08,081 INFO L277 CegarLoopForPetriNet]: 225 programPoint places, 152 predicate places. [2024-11-10 14:28:08,081 INFO L471 AbstractCegarLoop]: Abstraction has has 377 places, 1025 transitions, 10773 flow [2024-11-10 14:28:08,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 158.66666666666666) internal successors, (3808), 24 states have internal predecessors, (3808), 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) [2024-11-10 14:28:08,083 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:28:08,083 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:28:08,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 14:28:08,083 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr5ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-10 14:28:08,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:28:08,084 INFO L85 PathProgramCache]: Analyzing trace with hash -937072165, now seen corresponding path program 3 times [2024-11-10 14:28:08,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:28:08,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631301447] [2024-11-10 14:28:08,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:28:08,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:28:08,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:28:09,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:28:09,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:28:09,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631301447] [2024-11-10 14:28:09,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631301447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:28:09,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:28:09,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-10 14:28:09,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815886019] [2024-11-10 14:28:09,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:28:09,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-10 14:28:09,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:28:09,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-10 14:28:09,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2024-11-10 14:28:12,215 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 240 [2024-11-10 14:28:12,217 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 1025 transitions, 10773 flow. Second operand has 18 states, 18 states have (on average 169.61111111111111) internal successors, (3053), 18 states have internal predecessors, (3053), 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) [2024-11-10 14:28:12,217 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:28:12,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 240 [2024-11-10 14:28:12,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:28:24,826 INFO L124 PetriNetUnfolderBase]: 10361/46816 cut-off events. [2024-11-10 14:28:24,826 INFO L125 PetriNetUnfolderBase]: For 179440/185127 co-relation queries the response was YES. [2024-11-10 14:28:25,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153284 conditions, 46816 events. 10361/46816 cut-off events. For 179440/185127 co-relation queries the response was YES. Maximal size of possible extension queue 664. Compared 604063 event pairs, 443 based on Foata normal form. 589/45716 useless extension candidates. Maximal degree in co-relation 153143. Up to 6308 conditions per place. [2024-11-10 14:28:25,930 INFO L140 encePairwiseOnDemand]: 210/240 looper letters, 1261 selfloop transitions, 361 changer transitions 0/1985 dead transitions. [2024-11-10 14:28:25,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 1985 transitions, 23981 flow [2024-11-10 14:28:25,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-10 14:28:25,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-10 14:28:25,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3709 transitions. [2024-11-10 14:28:25,935 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7727083333333333 [2024-11-10 14:28:25,936 INFO L175 Difference]: Start difference. First operand has 377 places, 1025 transitions, 10773 flow. Second operand 20 states and 3709 transitions. [2024-11-10 14:28:25,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 1985 transitions, 23981 flow [2024-11-10 14:28:26,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 1985 transitions, 23686 flow, removed 142 selfloop flow, removed 6 redundant places. [2024-11-10 14:28:26,642 INFO L231 Difference]: Finished difference. Result has 403 places, 1248 transitions, 15411 flow [2024-11-10 14:28:26,643 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=10582, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1025, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=180, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=735, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=15411, PETRI_PLACES=403, PETRI_TRANSITIONS=1248} [2024-11-10 14:28:26,644 INFO L277 CegarLoopForPetriNet]: 225 programPoint places, 178 predicate places. [2024-11-10 14:28:26,644 INFO L471 AbstractCegarLoop]: Abstraction has has 403 places, 1248 transitions, 15411 flow [2024-11-10 14:28:26,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 169.61111111111111) internal successors, (3053), 18 states have internal predecessors, (3053), 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) [2024-11-10 14:28:26,645 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:28:26,645 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:28:26,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 14:28:26,645 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [reader_nowait_fnErr5ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr1ASSERT_VIOLATIONDATA_RACE, reader_nowait_fnErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-10 14:28:26,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:28:26,646 INFO L85 PathProgramCache]: Analyzing trace with hash -507775957, now seen corresponding path program 4 times [2024-11-10 14:28:26,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:28:26,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923342670] [2024-11-10 14:28:26,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:28:26,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:28:26,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:28:29,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:28:29,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:28:29,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923342670] [2024-11-10 14:28:29,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923342670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:28:29,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:28:29,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-10 14:28:29,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593493037] [2024-11-10 14:28:29,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:28:29,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-10 14:28:29,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:28:29,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-10 14:28:29,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552