./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/ldv-races/race-4_2-thread_local_vars.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-races/race-4_2-thread_local_vars.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 0f799b8cb369af433cd7b4f4a2ae1c7efd2306d185f06da0302d2727c00c6bf0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 17:44:14,327 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 17:44:14,417 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-22 17:44:14,422 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 17:44:14,424 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 17:44:14,452 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 17:44:14,453 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 17:44:14,453 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 17:44:14,454 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 17:44:14,455 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 17:44:14,455 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 17:44:14,455 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 17:44:14,456 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 17:44:14,457 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 17:44:14,460 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 17:44:14,460 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 17:44:14,460 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 17:44:14,460 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 17:44:14,461 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 17:44:14,461 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 17:44:14,461 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 17:44:14,462 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 17:44:14,462 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-22 17:44:14,463 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 17:44:14,463 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 17:44:14,464 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 17:44:14,464 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 17:44:14,465 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 17:44:14,465 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 17:44:14,465 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 17:44:14,465 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 17:44:14,466 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:44:14,466 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 17:44:14,466 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 17:44:14,466 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 17:44:14,466 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 17:44:14,466 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 17:44:14,467 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 17:44:14,467 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 17:44:14,468 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 17:44:14,468 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 17:44:14,469 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f799b8cb369af433cd7b4f4a2ae1c7efd2306d185f06da0302d2727c00c6bf0 [2024-11-22 17:44:14,703 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 17:44:14,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 17:44:14,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 17:44:14,735 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 17:44:14,735 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 17:44:14,737 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-4_2-thread_local_vars.i [2024-11-22 17:44:16,211 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 17:44:16,489 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 17:44:16,489 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-4_2-thread_local_vars.i [2024-11-22 17:44:16,524 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d85c0a91e/f9817a7b8c36494fa7974866c554ae04/FLAG4673b8fa2 [2024-11-22 17:44:16,778 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d85c0a91e/f9817a7b8c36494fa7974866c554ae04 [2024-11-22 17:44:16,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 17:44:16,782 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 17:44:16,784 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 17:44:16,785 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 17:44:16,790 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 17:44:16,790 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:44:16" (1/1) ... [2024-11-22 17:44:16,791 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72331984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:44:16, skipping insertion in model container [2024-11-22 17:44:16,792 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:44:16" (1/1) ... [2024-11-22 17:44:16,850 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 17:44:17,640 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:44:17,659 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 17:44:17,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:44:17,857 INFO L204 MainTranslator]: Completed translation [2024-11-22 17:44:17,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:44:17 WrapperNode [2024-11-22 17:44:17,858 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 17:44:17,859 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 17:44:17,859 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 17:44:17,859 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 17:44:17,866 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:44:17" (1/1) ... [2024-11-22 17:44:17,900 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:44:17" (1/1) ... [2024-11-22 17:44:17,935 INFO L138 Inliner]: procedures = 487, calls = 38, calls flagged for inlining = 17, calls inlined = 23, statements flattened = 296 [2024-11-22 17:44:17,935 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 17:44:17,936 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 17:44:17,936 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 17:44:17,936 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 17:44:17,945 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:44:17" (1/1) ... [2024-11-22 17:44:17,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:44:17" (1/1) ... [2024-11-22 17:44:17,956 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:44:17" (1/1) ... [2024-11-22 17:44:17,957 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:44:17" (1/1) ... [2024-11-22 17:44:17,978 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:44:17" (1/1) ... [2024-11-22 17:44:17,982 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:44:17" (1/1) ... [2024-11-22 17:44:17,987 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:44:17" (1/1) ... [2024-11-22 17:44:17,990 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:44:17" (1/1) ... [2024-11-22 17:44:17,996 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 17:44:17,997 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 17:44:17,997 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 17:44:17,997 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 17:44:17,998 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:44:17" (1/1) ... [2024-11-22 17:44:18,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:44:18,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:44:18,050 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 17:44:18,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 17:44:18,098 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2024-11-22 17:44:18,098 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2024-11-22 17:44:18,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 17:44:18,099 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2024-11-22 17:44:18,099 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2024-11-22 17:44:18,099 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-22 17:44:18,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 17:44:18,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-22 17:44:18,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 17:44:18,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 17:44:18,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 17:44:18,100 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-22 17:44:18,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-22 17:44:18,101 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 17:44:18,418 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 17:44:18,421 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 17:44:18,753 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 17:44:18,754 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 17:44:18,789 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 17:44:18,789 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-22 17:44:18,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:44:18 BoogieIcfgContainer [2024-11-22 17:44:18,791 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 17:44:18,793 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 17:44:18,793 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 17:44:18,797 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 17:44:18,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 05:44:16" (1/3) ... [2024-11-22 17:44:18,798 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ae269f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:44:18, skipping insertion in model container [2024-11-22 17:44:18,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:44:17" (2/3) ... [2024-11-22 17:44:18,798 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ae269f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:44:18, skipping insertion in model container [2024-11-22 17:44:18,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:44:18" (3/3) ... [2024-11-22 17:44:18,799 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_2-thread_local_vars.i [2024-11-22 17:44:18,814 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 17:44:18,815 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2024-11-22 17:44:18,815 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 17:44:19,027 INFO L143 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-11-22 17:44:19,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 472 places, 514 transitions, 1055 flow [2024-11-22 17:44:19,245 INFO L124 PetriNetUnfolderBase]: 45/520 cut-off events. [2024-11-22 17:44:19,248 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-22 17:44:19,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 531 conditions, 520 events. 45/520 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1454 event pairs, 0 based on Foata normal form. 0/433 useless extension candidates. Maximal degree in co-relation 367. Up to 11 conditions per place. [2024-11-22 17:44:19,262 INFO L82 GeneralOperation]: Start removeDead. Operand has 472 places, 514 transitions, 1055 flow [2024-11-22 17:44:19,273 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 323 places, 348 transitions, 712 flow [2024-11-22 17:44:19,285 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 17:44:19,294 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3b529236, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 17:44:19,294 INFO L334 AbstractCegarLoop]: Starting to check reachability of 43 error locations. [2024-11-22 17:44:19,300 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 17:44:19,300 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2024-11-22 17:44:19,300 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 17:44:19,301 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:44:19,301 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] [2024-11-22 17:44:19,302 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-22 17:44:19,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:44:19,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1019178130, now seen corresponding path program 1 times [2024-11-22 17:44:19,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:44:19,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778229884] [2024-11-22 17:44:19,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:44:19,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:44:19,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:44:19,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:44:19,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:44:19,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778229884] [2024-11-22 17:44:19,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778229884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:44:19,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:44:19,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:44:19,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990085590] [2024-11-22 17:44:19,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:44:19,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:44:19,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:44:19,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:44:19,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:44:19,873 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 442 out of 514 [2024-11-22 17:44:19,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 348 transitions, 712 flow. Second operand has 3 states, 3 states have (on average 443.3333333333333) internal successors, (1330), 3 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:44:19,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:44:19,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 442 of 514 [2024-11-22 17:44:19,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:44:20,144 INFO L124 PetriNetUnfolderBase]: 122/1234 cut-off events. [2024-11-22 17:44:20,145 INFO L125 PetriNetUnfolderBase]: For 40/47 co-relation queries the response was YES. [2024-11-22 17:44:20,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1444 conditions, 1234 events. 122/1234 cut-off events. For 40/47 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 7314 event pairs, 76 based on Foata normal form. 115/1168 useless extension candidates. Maximal degree in co-relation 1117. Up to 185 conditions per place. [2024-11-22 17:44:20,159 INFO L140 encePairwiseOnDemand]: 493/514 looper letters, 24 selfloop transitions, 2 changer transitions 6/315 dead transitions. [2024-11-22 17:44:20,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 315 transitions, 698 flow [2024-11-22 17:44:20,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:44:20,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:44:20,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1371 transitions. [2024-11-22 17:44:20,177 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8891050583657587 [2024-11-22 17:44:20,179 INFO L175 Difference]: Start difference. First operand has 323 places, 348 transitions, 712 flow. Second operand 3 states and 1371 transitions. [2024-11-22 17:44:20,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 315 transitions, 698 flow [2024-11-22 17:44:20,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 315 transitions, 694 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:44:20,190 INFO L231 Difference]: Finished difference. Result has 308 places, 309 transitions, 634 flow [2024-11-22 17:44:20,192 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=634, PETRI_PLACES=308, PETRI_TRANSITIONS=309} [2024-11-22 17:44:20,195 INFO L277 CegarLoopForPetriNet]: 323 programPoint places, -15 predicate places. [2024-11-22 17:44:20,196 INFO L471 AbstractCegarLoop]: Abstraction has has 308 places, 309 transitions, 634 flow [2024-11-22 17:44:20,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 443.3333333333333) internal successors, (1330), 3 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:44:20,197 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:44:20,197 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] [2024-11-22 17:44:20,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 17:44:20,198 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-22 17:44:20,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:44:20,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1211256555, now seen corresponding path program 1 times [2024-11-22 17:44:20,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:44:20,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519456328] [2024-11-22 17:44:20,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:44:20,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:44:20,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:44:20,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:44:20,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:44:20,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519456328] [2024-11-22 17:44:20,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519456328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:44:20,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:44:20,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:44:20,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68187423] [2024-11-22 17:44:20,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:44:20,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:44:20,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:44:20,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:44:20,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:44:20,402 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 428 out of 514 [2024-11-22 17:44:20,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 309 transitions, 634 flow. Second operand has 3 states, 3 states have (on average 429.0) internal successors, (1287), 3 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:44:20,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:44:20,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 428 of 514 [2024-11-22 17:44:20,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:44:20,671 INFO L124 PetriNetUnfolderBase]: 161/1710 cut-off events. [2024-11-22 17:44:20,672 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-22 17:44:20,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1950 conditions, 1710 events. 161/1710 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 11687 event pairs, 29 based on Foata normal form. 0/1468 useless extension candidates. Maximal degree in co-relation 1916. Up to 156 conditions per place. [2024-11-22 17:44:20,690 INFO L140 encePairwiseOnDemand]: 490/514 looper letters, 30 selfloop transitions, 17 changer transitions 0/321 dead transitions. [2024-11-22 17:44:20,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 321 transitions, 753 flow [2024-11-22 17:44:20,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:44:20,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:44:20,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1338 transitions. [2024-11-22 17:44:20,694 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.867704280155642 [2024-11-22 17:44:20,694 INFO L175 Difference]: Start difference. First operand has 308 places, 309 transitions, 634 flow. Second operand 3 states and 1338 transitions. [2024-11-22 17:44:20,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 321 transitions, 753 flow [2024-11-22 17:44:20,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 321 transitions, 749 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:44:20,705 INFO L231 Difference]: Finished difference. Result has 301 places, 318 transitions, 748 flow [2024-11-22 17:44:20,706 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=748, PETRI_PLACES=301, PETRI_TRANSITIONS=318} [2024-11-22 17:44:20,706 INFO L277 CegarLoopForPetriNet]: 323 programPoint places, -22 predicate places. [2024-11-22 17:44:20,706 INFO L471 AbstractCegarLoop]: Abstraction has has 301 places, 318 transitions, 748 flow [2024-11-22 17:44:20,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 429.0) internal successors, (1287), 3 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:44:20,708 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:44:20,708 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] [2024-11-22 17:44:20,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 17:44:20,709 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-22 17:44:20,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:44:20,709 INFO L85 PathProgramCache]: Analyzing trace with hash 357497468, now seen corresponding path program 1 times [2024-11-22 17:44:20,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:44:20,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812605186] [2024-11-22 17:44:20,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:44:20,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:44:20,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:44:20,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:44:20,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:44:20,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812605186] [2024-11-22 17:44:20,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812605186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:44:20,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:44:20,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:44:20,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726739806] [2024-11-22 17:44:20,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:44:20,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:44:20,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:44:20,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:44:20,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:44:20,947 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 442 out of 514 [2024-11-22 17:44:20,949 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 318 transitions, 748 flow. Second operand has 3 states, 3 states have (on average 444.0) internal successors, (1332), 3 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:44:20,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:44:20,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 442 of 514 [2024-11-22 17:44:20,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:44:21,275 INFO L124 PetriNetUnfolderBase]: 274/2597 cut-off events. [2024-11-22 17:44:21,276 INFO L125 PetriNetUnfolderBase]: For 480/543 co-relation queries the response was YES. [2024-11-22 17:44:21,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3358 conditions, 2597 events. 274/2597 cut-off events. For 480/543 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 20850 event pairs, 99 based on Foata normal form. 0/2232 useless extension candidates. Maximal degree in co-relation 2866. Up to 333 conditions per place. [2024-11-22 17:44:21,298 INFO L140 encePairwiseOnDemand]: 511/514 looper letters, 32 selfloop transitions, 2 changer transitions 0/317 dead transitions. [2024-11-22 17:44:21,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 317 transitions, 814 flow [2024-11-22 17:44:21,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:44:21,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:44:21,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1353 transitions. [2024-11-22 17:44:21,302 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.877431906614786 [2024-11-22 17:44:21,302 INFO L175 Difference]: Start difference. First operand has 301 places, 318 transitions, 748 flow. Second operand 3 states and 1353 transitions. [2024-11-22 17:44:21,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 317 transitions, 814 flow [2024-11-22 17:44:21,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 317 transitions, 780 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:44:21,311 INFO L231 Difference]: Finished difference. Result has 300 places, 317 transitions, 716 flow [2024-11-22 17:44:21,311 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=712, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=716, PETRI_PLACES=300, PETRI_TRANSITIONS=317} [2024-11-22 17:44:21,313 INFO L277 CegarLoopForPetriNet]: 323 programPoint places, -23 predicate places. [2024-11-22 17:44:21,313 INFO L471 AbstractCegarLoop]: Abstraction has has 300 places, 317 transitions, 716 flow [2024-11-22 17:44:21,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 444.0) internal successors, (1332), 3 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:44:21,314 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:44:21,314 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] [2024-11-22 17:44:21,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 17:44:21,315 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-22 17:44:21,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:44:21,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1517070653, now seen corresponding path program 1 times [2024-11-22 17:44:21,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:44:21,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702224284] [2024-11-22 17:44:21,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:44:21,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:44:21,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:44:21,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:44:21,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:44:21,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702224284] [2024-11-22 17:44:21,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702224284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:44:21,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:44:21,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:44:21,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697674076] [2024-11-22 17:44:21,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:44:21,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:44:21,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:44:21,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:44:21,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:44:21,429 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 514 [2024-11-22 17:44:21,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 317 transitions, 716 flow. Second operand has 3 states, 3 states have (on average 461.3333333333333) internal successors, (1384), 3 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:44:21,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:44:21,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 514 [2024-11-22 17:44:21,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:44:21,803 INFO L124 PetriNetUnfolderBase]: 264/2775 cut-off events. [2024-11-22 17:44:21,803 INFO L125 PetriNetUnfolderBase]: For 51/81 co-relation queries the response was YES. [2024-11-22 17:44:21,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3215 conditions, 2775 events. 264/2775 cut-off events. For 51/81 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 22463 event pairs, 60 based on Foata normal form. 1/2348 useless extension candidates. Maximal degree in co-relation 3176. Up to 144 conditions per place. [2024-11-22 17:44:21,829 INFO L140 encePairwiseOnDemand]: 511/514 looper letters, 17 selfloop transitions, 2 changer transitions 0/321 dead transitions. [2024-11-22 17:44:21,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 321 transitions, 771 flow [2024-11-22 17:44:21,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:44:21,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:44:21,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1400 transitions. [2024-11-22 17:44:21,834 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9079118028534371 [2024-11-22 17:44:21,834 INFO L175 Difference]: Start difference. First operand has 300 places, 317 transitions, 716 flow. Second operand 3 states and 1400 transitions. [2024-11-22 17:44:21,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 321 transitions, 771 flow [2024-11-22 17:44:21,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 321 transitions, 767 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:44:21,841 INFO L231 Difference]: Finished difference. Result has 299 places, 316 transitions, 714 flow [2024-11-22 17:44:21,841 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=710, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=316, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=714, PETRI_PLACES=299, PETRI_TRANSITIONS=316} [2024-11-22 17:44:21,843 INFO L277 CegarLoopForPetriNet]: 323 programPoint places, -24 predicate places. [2024-11-22 17:44:21,843 INFO L471 AbstractCegarLoop]: Abstraction has has 299 places, 316 transitions, 714 flow [2024-11-22 17:44:21,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 461.3333333333333) internal successors, (1384), 3 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:44:21,844 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:44:21,844 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] [2024-11-22 17:44:21,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 17:44:21,844 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread_usbErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-22 17:44:21,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:44:21,845 INFO L85 PathProgramCache]: Analyzing trace with hash -375367980, now seen corresponding path program 1 times [2024-11-22 17:44:21,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:44:21,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368119311] [2024-11-22 17:44:21,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:44:21,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:44:21,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:44:21,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:44:21,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:44:21,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368119311] [2024-11-22 17:44:21,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368119311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:44:21,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:44:21,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:44:21,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940447334] [2024-11-22 17:44:21,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:44:21,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:44:21,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:44:21,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:44:21,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:44:21,969 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 453 out of 514 [2024-11-22 17:44:21,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 316 transitions, 714 flow. Second operand has 3 states, 3 states have (on average 454.3333333333333) internal successors, (1363), 3 states have internal predecessors, (1363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:44:21,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:44:21,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 453 of 514 [2024-11-22 17:44:21,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:44:22,146 INFO L124 PetriNetUnfolderBase]: 123/1436 cut-off events. [2024-11-22 17:44:22,147 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-22 17:44:22,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1683 conditions, 1436 events. 123/1436 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 9200 event pairs, 29 based on Foata normal form. 0/1246 useless extension candidates. Maximal degree in co-relation 1591. Up to 93 conditions per place. [2024-11-22 17:44:22,160 INFO L140 encePairwiseOnDemand]: 511/514 looper letters, 14 selfloop transitions, 2 changer transitions 0/315 dead transitions. [2024-11-22 17:44:22,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 315 transitions, 744 flow [2024-11-22 17:44:22,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:44:22,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:44:22,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1376 transitions. [2024-11-22 17:44:22,164 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8923476005188068 [2024-11-22 17:44:22,164 INFO L175 Difference]: Start difference. First operand has 299 places, 316 transitions, 714 flow. Second operand 3 states and 1376 transitions. [2024-11-22 17:44:22,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 315 transitions, 744 flow [2024-11-22 17:44:22,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 315 transitions, 740 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:44:22,170 INFO L231 Difference]: Finished difference. Result has 298 places, 315 transitions, 712 flow [2024-11-22 17:44:22,170 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=708, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=712, PETRI_PLACES=298, PETRI_TRANSITIONS=315} [2024-11-22 17:44:22,171 INFO L277 CegarLoopForPetriNet]: 323 programPoint places, -25 predicate places. [2024-11-22 17:44:22,171 INFO L471 AbstractCegarLoop]: Abstraction has has 298 places, 315 transitions, 712 flow [2024-11-22 17:44:22,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 454.3333333333333) internal successors, (1363), 3 states have internal predecessors, (1363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:44:22,172 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:44:22,172 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:44:22,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 17:44:22,172 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-22 17:44:22,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:44:22,173 INFO L85 PathProgramCache]: Analyzing trace with hash 929673292, now seen corresponding path program 1 times [2024-11-22 17:44:22,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:44:22,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320518806] [2024-11-22 17:44:22,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:44:22,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:44:22,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:44:22,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:44:22,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:44:22,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320518806] [2024-11-22 17:44:22,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320518806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:44:22,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:44:22,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:44:22,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849241105] [2024-11-22 17:44:22,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:44:22,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:44:22,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:44:22,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:44:22,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:44:22,287 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 464 out of 514 [2024-11-22 17:44:22,289 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 315 transitions, 712 flow. Second operand has 3 states, 3 states have (on average 465.3333333333333) internal successors, (1396), 3 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:44:22,289 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:44:22,289 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 464 of 514 [2024-11-22 17:44:22,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:44:22,474 INFO L124 PetriNetUnfolderBase]: 153/1505 cut-off events. [2024-11-22 17:44:22,474 INFO L125 PetriNetUnfolderBase]: For 33/56 co-relation queries the response was YES. [2024-11-22 17:44:22,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1793 conditions, 1505 events. 153/1505 cut-off events. For 33/56 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 10453 event pairs, 13 based on Foata normal form. 4/1304 useless extension candidates. Maximal degree in co-relation 1695. Up to 97 conditions per place. [2024-11-22 17:44:22,484 INFO L140 encePairwiseOnDemand]: 512/514 looper letters, 14 selfloop transitions, 1 changer transitions 19/319 dead transitions. [2024-11-22 17:44:22,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 319 transitions, 759 flow [2024-11-22 17:44:22,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:44:22,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:44:22,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1408 transitions. [2024-11-22 17:44:22,487 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9130998702983139 [2024-11-22 17:44:22,488 INFO L175 Difference]: Start difference. First operand has 298 places, 315 transitions, 712 flow. Second operand 3 states and 1408 transitions. [2024-11-22 17:44:22,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 319 transitions, 759 flow [2024-11-22 17:44:22,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 319 transitions, 755 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:44:22,493 INFO L231 Difference]: Finished difference. Result has 297 places, 295 transitions, 666 flow [2024-11-22 17:44:22,493 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=706, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=666, PETRI_PLACES=297, PETRI_TRANSITIONS=295} [2024-11-22 17:44:22,494 INFO L277 CegarLoopForPetriNet]: 323 programPoint places, -26 predicate places. [2024-11-22 17:44:22,494 INFO L471 AbstractCegarLoop]: Abstraction has has 297 places, 295 transitions, 666 flow [2024-11-22 17:44:22,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 465.3333333333333) internal successors, (1396), 3 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:44:22,495 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:44:22,495 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] [2024-11-22 17:44:22,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 17:44:22,496 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread_usbErr1ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-22 17:44:22,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:44:22,496 INFO L85 PathProgramCache]: Analyzing trace with hash 567808721, now seen corresponding path program 1 times [2024-11-22 17:44:22,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:44:22,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163478296] [2024-11-22 17:44:22,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:44:22,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:44:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:44:22,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:44:22,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:44:22,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163478296] [2024-11-22 17:44:22,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163478296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:44:22,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:44:22,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:44:22,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015230375] [2024-11-22 17:44:22,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:44:22,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:44:22,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:44:22,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:44:22,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:44:22,619 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 445 out of 514 [2024-11-22 17:44:22,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 295 transitions, 666 flow. Second operand has 3 states, 3 states have (on average 446.3333333333333) internal successors, (1339), 3 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:44:22,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:44:22,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 445 of 514 [2024-11-22 17:44:22,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:44:22,784 INFO L124 PetriNetUnfolderBase]: 147/1605 cut-off events. [2024-11-22 17:44:22,784 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-22 17:44:22,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1896 conditions, 1605 events. 147/1605 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 10895 event pairs, 33 based on Foata normal form. 0/1406 useless extension candidates. Maximal degree in co-relation 1823. Up to 107 conditions per place. [2024-11-22 17:44:22,798 INFO L140 encePairwiseOnDemand]: 506/514 looper letters, 16 selfloop transitions, 5 changer transitions 0/297 dead transitions. [2024-11-22 17:44:22,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 297 transitions, 712 flow [2024-11-22 17:44:22,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:44:22,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:44:22,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1359 transitions. [2024-11-22 17:44:22,801 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8813229571984436 [2024-11-22 17:44:22,802 INFO L175 Difference]: Start difference. First operand has 297 places, 295 transitions, 666 flow. Second operand 3 states and 1359 transitions. [2024-11-22 17:44:22,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 297 transitions, 712 flow [2024-11-22 17:44:22,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 297 transitions, 711 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 17:44:22,807 INFO L231 Difference]: Finished difference. Result has 278 places, 295 transitions, 686 flow [2024-11-22 17:44:22,808 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=659, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=686, PETRI_PLACES=278, PETRI_TRANSITIONS=295} [2024-11-22 17:44:22,809 INFO L277 CegarLoopForPetriNet]: 323 programPoint places, -45 predicate places. [2024-11-22 17:44:22,809 INFO L471 AbstractCegarLoop]: Abstraction has has 278 places, 295 transitions, 686 flow [2024-11-22 17:44:22,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 446.3333333333333) internal successors, (1339), 3 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:44:22,811 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:44:22,811 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:44:22,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 17:44:22,811 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread_usbErr7ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-22 17:44:22,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:44:22,812 INFO L85 PathProgramCache]: Analyzing trace with hash 336089783, now seen corresponding path program 1 times [2024-11-22 17:44:22,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:44:22,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294637051] [2024-11-22 17:44:22,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:44:22,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:44:22,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:44:22,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:44:22,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:44:22,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294637051] [2024-11-22 17:44:22,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294637051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:44:22,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:44:22,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 17:44:22,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244643797] [2024-11-22 17:44:22,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:44:22,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:44:22,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:44:22,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:44:22,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:44:22,981 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 514 [2024-11-22 17:44:22,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 295 transitions, 686 flow. Second operand has 3 states, 3 states have (on average 453.3333333333333) internal successors, (1360), 3 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:44:22,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:44:22,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 514 [2024-11-22 17:44:22,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:44:23,153 INFO L124 PetriNetUnfolderBase]: 157/1614 cut-off events. [2024-11-22 17:44:23,153 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-22 17:44:23,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1954 conditions, 1614 events. 157/1614 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 10872 event pairs, 20 based on Foata normal form. 1/1411 useless extension candidates. Maximal degree in co-relation 1880. Up to 91 conditions per place. [2024-11-22 17:44:23,168 INFO L140 encePairwiseOnDemand]: 506/514 looper letters, 15 selfloop transitions, 5 changer transitions 0/299 dead transitions. [2024-11-22 17:44:23,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 299 transitions, 734 flow [2024-11-22 17:44:23,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:44:23,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:44:23,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1379 transitions. [2024-11-22 17:44:23,172 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8942931258106356 [2024-11-22 17:44:23,172 INFO L175 Difference]: Start difference. First operand has 278 places, 295 transitions, 686 flow. Second operand 3 states and 1379 transitions. [2024-11-22 17:44:23,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 299 transitions, 734 flow [2024-11-22 17:44:23,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 299 transitions, 729 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 17:44:23,177 INFO L231 Difference]: Finished difference. Result has 281 places, 297 transitions, 715 flow [2024-11-22 17:44:23,178 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=681, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=715, PETRI_PLACES=281, PETRI_TRANSITIONS=297} [2024-11-22 17:44:23,178 INFO L277 CegarLoopForPetriNet]: 323 programPoint places, -42 predicate places. [2024-11-22 17:44:23,178 INFO L471 AbstractCegarLoop]: Abstraction has has 281 places, 297 transitions, 715 flow [2024-11-22 17:44:23,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 453.3333333333333) internal successors, (1360), 3 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:44:23,180 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:44:23,180 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] [2024-11-22 17:44:23,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 17:44:23,180 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread_usbErr12ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-22 17:44:23,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:44:23,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1864743785, now seen corresponding path program 1 times [2024-11-22 17:44:23,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:44:23,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880941864] [2024-11-22 17:44:23,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:44:23,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:44:23,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:44:23,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:44:23,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:44:23,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880941864] [2024-11-22 17:44:23,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880941864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:44:23,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:44:23,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:44:23,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420470677] [2024-11-22 17:44:23,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:44:23,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:44:23,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:44:23,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:44:23,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:44:23,367 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 445 out of 514 [2024-11-22 17:44:23,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 297 transitions, 715 flow. Second operand has 3 states, 3 states have (on average 447.0) internal successors, (1341), 3 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:44:23,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:44:23,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 445 of 514 [2024-11-22 17:44:23,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:44:23,560 INFO L124 PetriNetUnfolderBase]: 194/1751 cut-off events. [2024-11-22 17:44:23,561 INFO L125 PetriNetUnfolderBase]: For 138/164 co-relation queries the response was YES. [2024-11-22 17:44:23,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2269 conditions, 1751 events. 194/1751 cut-off events. For 138/164 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 12007 event pairs, 36 based on Foata normal form. 2/1543 useless extension candidates. Maximal degree in co-relation 2190. Up to 190 conditions per place. [2024-11-22 17:44:23,578 INFO L140 encePairwiseOnDemand]: 508/514 looper letters, 30 selfloop transitions, 8 changer transitions 0/305 dead transitions. [2024-11-22 17:44:23,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 305 transitions, 817 flow [2024-11-22 17:44:23,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:44:23,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:44:23,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1364 transitions. [2024-11-22 17:44:23,583 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8845654993514915 [2024-11-22 17:44:23,583 INFO L175 Difference]: Start difference. First operand has 281 places, 297 transitions, 715 flow. Second operand 3 states and 1364 transitions. [2024-11-22 17:44:23,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 305 transitions, 817 flow [2024-11-22 17:44:23,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 305 transitions, 807 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:44:23,589 INFO L231 Difference]: Finished difference. Result has 283 places, 303 transitions, 773 flow [2024-11-22 17:44:23,590 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=705, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=773, PETRI_PLACES=283, PETRI_TRANSITIONS=303} [2024-11-22 17:44:23,590 INFO L277 CegarLoopForPetriNet]: 323 programPoint places, -40 predicate places. [2024-11-22 17:44:23,590 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 303 transitions, 773 flow [2024-11-22 17:44:23,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 447.0) internal successors, (1341), 3 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:44:23,591 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:44:23,591 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] [2024-11-22 17:44:23,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 17:44:23,592 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread_usbErr2ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-22 17:44:23,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:44:23,592 INFO L85 PathProgramCache]: Analyzing trace with hash 241274166, now seen corresponding path program 1 times [2024-11-22 17:44:23,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:44:23,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965505921] [2024-11-22 17:44:23,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:44:23,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:44:23,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:44:23,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:44:23,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:44:23,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965505921] [2024-11-22 17:44:23,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965505921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:44:23,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:44:23,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:44:23,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798028513] [2024-11-22 17:44:23,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:44:23,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:44:23,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:44:23,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:44:23,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:44:23,706 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 514 [2024-11-22 17:44:23,708 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 303 transitions, 773 flow. Second operand has 3 states, 3 states have (on average 459.6666666666667) internal successors, (1379), 3 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:44:23,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:44:23,708 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 514 [2024-11-22 17:44:23,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:44:23,947 INFO L124 PetriNetUnfolderBase]: 175/1811 cut-off events. [2024-11-22 17:44:23,947 INFO L125 PetriNetUnfolderBase]: For 102/113 co-relation queries the response was YES. [2024-11-22 17:44:23,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2309 conditions, 1811 events. 175/1811 cut-off events. For 102/113 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 12591 event pairs, 18 based on Foata normal form. 0/1598 useless extension candidates. Maximal degree in co-relation 2232. Up to 103 conditions per place. [2024-11-22 17:44:23,960 INFO L140 encePairwiseOnDemand]: 511/514 looper letters, 14 selfloop transitions, 2 changer transitions 0/304 dead transitions. [2024-11-22 17:44:23,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 304 transitions, 807 flow [2024-11-22 17:44:23,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:44:23,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:44:23,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1391 transitions. [2024-11-22 17:44:23,964 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9020752269779507 [2024-11-22 17:44:23,964 INFO L175 Difference]: Start difference. First operand has 283 places, 303 transitions, 773 flow. Second operand 3 states and 1391 transitions. [2024-11-22 17:44:23,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 304 transitions, 807 flow [2024-11-22 17:44:23,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 304 transitions, 791 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:44:23,971 INFO L231 Difference]: Finished difference. Result has 282 places, 302 transitions, 759 flow [2024-11-22 17:44:23,971 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=755, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=759, PETRI_PLACES=282, PETRI_TRANSITIONS=302} [2024-11-22 17:44:23,972 INFO L277 CegarLoopForPetriNet]: 323 programPoint places, -41 predicate places. [2024-11-22 17:44:23,972 INFO L471 AbstractCegarLoop]: Abstraction has has 282 places, 302 transitions, 759 flow [2024-11-22 17:44:23,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 459.6666666666667) internal successors, (1379), 3 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:44:23,973 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:44:23,974 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] [2024-11-22 17:44:23,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 17:44:23,974 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread_usbErr3ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-22 17:44:23,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:44:23,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1974694377, now seen corresponding path program 1 times [2024-11-22 17:44:23,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:44:23,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474241066] [2024-11-22 17:44:23,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:44:23,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:44:23,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:44:24,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:44:24,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:44:24,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474241066] [2024-11-22 17:44:24,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474241066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:44:24,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:44:24,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:44:24,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033797089] [2024-11-22 17:44:24,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:44:24,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:44:24,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:44:24,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:44:24,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:44:24,100 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 453 out of 514 [2024-11-22 17:44:24,102 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 302 transitions, 759 flow. Second operand has 3 states, 3 states have (on average 455.0) internal successors, (1365), 3 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:44:24,102 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:44:24,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 453 of 514 [2024-11-22 17:44:24,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:44:24,299 INFO L124 PetriNetUnfolderBase]: 193/1832 cut-off events. [2024-11-22 17:44:24,300 INFO L125 PetriNetUnfolderBase]: For 129/142 co-relation queries the response was YES. [2024-11-22 17:44:24,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2362 conditions, 1832 events. 193/1832 cut-off events. For 129/142 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 12981 event pairs, 27 based on Foata normal form. 0/1617 useless extension candidates. Maximal degree in co-relation 2285. Up to 127 conditions per place. [2024-11-22 17:44:24,316 INFO L140 encePairwiseOnDemand]: 511/514 looper letters, 19 selfloop transitions, 2 changer transitions 0/303 dead transitions. [2024-11-22 17:44:24,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 303 transitions, 803 flow [2024-11-22 17:44:24,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:44:24,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:44:24,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1378 transitions. [2024-11-22 17:44:24,319 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.893644617380026 [2024-11-22 17:44:24,320 INFO L175 Difference]: Start difference. First operand has 282 places, 302 transitions, 759 flow. Second operand 3 states and 1378 transitions. [2024-11-22 17:44:24,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 303 transitions, 803 flow [2024-11-22 17:44:24,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 303 transitions, 799 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:44:24,325 INFO L231 Difference]: Finished difference. Result has 281 places, 301 transitions, 757 flow [2024-11-22 17:44:24,326 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=753, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=757, PETRI_PLACES=281, PETRI_TRANSITIONS=301} [2024-11-22 17:44:24,326 INFO L277 CegarLoopForPetriNet]: 323 programPoint places, -42 predicate places. [2024-11-22 17:44:24,327 INFO L471 AbstractCegarLoop]: Abstraction has has 281 places, 301 transitions, 757 flow [2024-11-22 17:44:24,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 455.0) internal successors, (1365), 3 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:44:24,328 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:44:24,328 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] [2024-11-22 17:44:24,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 17:44:24,328 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-22 17:44:24,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:44:24,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1916310265, now seen corresponding path program 1 times [2024-11-22 17:44:24,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:44:24,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52290923] [2024-11-22 17:44:24,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:44:24,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:44:24,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:44:24,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:44:24,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:44:24,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52290923] [2024-11-22 17:44:24,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52290923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:44:24,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:44:24,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:44:24,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141212063] [2024-11-22 17:44:24,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:44:24,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:44:24,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:44:24,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:44:24,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:44:24,491 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 442 out of 514 [2024-11-22 17:44:24,493 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 301 transitions, 757 flow. Second operand has 3 states, 3 states have (on average 445.0) internal successors, (1335), 3 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:44:24,493 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:44:24,493 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 442 of 514 [2024-11-22 17:44:24,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:44:24,734 INFO L124 PetriNetUnfolderBase]: 299/2254 cut-off events. [2024-11-22 17:44:24,734 INFO L125 PetriNetUnfolderBase]: For 357/476 co-relation queries the response was YES. [2024-11-22 17:44:24,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3180 conditions, 2254 events. 299/2254 cut-off events. For 357/476 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 17469 event pairs, 53 based on Foata normal form. 9/1995 useless extension candidates. Maximal degree in co-relation 3101. Up to 335 conditions per place. [2024-11-22 17:44:24,757 INFO L140 encePairwiseOnDemand]: 504/514 looper letters, 35 selfloop transitions, 16 changer transitions 0/314 dead transitions. [2024-11-22 17:44:24,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 314 transitions, 914 flow [2024-11-22 17:44:24,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:44:24,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:44:24,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1361 transitions. [2024-11-22 17:44:24,761 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8826199740596627 [2024-11-22 17:44:24,761 INFO L175 Difference]: Start difference. First operand has 281 places, 301 transitions, 757 flow. Second operand 3 states and 1361 transitions. [2024-11-22 17:44:24,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 314 transitions, 914 flow [2024-11-22 17:44:24,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 314 transitions, 910 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:44:24,768 INFO L231 Difference]: Finished difference. Result has 283 places, 313 transitions, 895 flow [2024-11-22 17:44:24,768 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=753, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=895, PETRI_PLACES=283, PETRI_TRANSITIONS=313} [2024-11-22 17:44:24,769 INFO L277 CegarLoopForPetriNet]: 323 programPoint places, -40 predicate places. [2024-11-22 17:44:24,769 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 313 transitions, 895 flow [2024-11-22 17:44:24,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 445.0) internal successors, (1335), 3 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:44:24,770 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:44:24,771 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] [2024-11-22 17:44:24,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 17:44:24,771 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread_usbErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-22 17:44:24,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:44:24,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1082734402, now seen corresponding path program 1 times [2024-11-22 17:44:24,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:44:24,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958968873] [2024-11-22 17:44:24,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:44:24,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:44:24,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:44:24,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:44:24,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:44:24,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958968873] [2024-11-22 17:44:24,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958968873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:44:24,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:44:24,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:44:24,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594405926] [2024-11-22 17:44:24,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:44:24,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:44:24,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:44:24,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:44:24,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:44:24,907 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 444 out of 514 [2024-11-22 17:44:24,910 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 313 transitions, 895 flow. Second operand has 3 states, 3 states have (on average 446.0) internal successors, (1338), 3 states have internal predecessors, (1338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:44:24,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:44:24,910 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 444 of 514 [2024-11-22 17:44:24,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:44:25,154 INFO L124 PetriNetUnfolderBase]: 310/2459 cut-off events. [2024-11-22 17:44:25,155 INFO L125 PetriNetUnfolderBase]: For 900/993 co-relation queries the response was YES. [2024-11-22 17:44:25,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3604 conditions, 2459 events. 310/2459 cut-off events. For 900/993 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 19434 event pairs, 39 based on Foata normal form. 7/2187 useless extension candidates. Maximal degree in co-relation 3524. Up to 289 conditions per place. [2024-11-22 17:44:25,179 INFO L140 encePairwiseOnDemand]: 508/514 looper letters, 44 selfloop transitions, 9 changer transitions 0/320 dead transitions. [2024-11-22 17:44:25,179 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 320 transitions, 1035 flow [2024-11-22 17:44:25,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:44:25,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:44:25,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1362 transitions. [2024-11-22 17:44:25,183 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8832684824902723 [2024-11-22 17:44:25,183 INFO L175 Difference]: Start difference. First operand has 283 places, 313 transitions, 895 flow. Second operand 3 states and 1362 transitions. [2024-11-22 17:44:25,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 320 transitions, 1035 flow [2024-11-22 17:44:25,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 320 transitions, 999 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:44:25,191 INFO L231 Difference]: Finished difference. Result has 285 places, 318 transitions, 937 flow [2024-11-22 17:44:25,191 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=863, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=937, PETRI_PLACES=285, PETRI_TRANSITIONS=318} [2024-11-22 17:44:25,192 INFO L277 CegarLoopForPetriNet]: 323 programPoint places, -38 predicate places. [2024-11-22 17:44:25,192 INFO L471 AbstractCegarLoop]: Abstraction has has 285 places, 318 transitions, 937 flow [2024-11-22 17:44:25,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 446.0) internal successors, (1338), 3 states have internal predecessors, (1338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:44:25,193 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:44:25,193 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, 1] [2024-11-22 17:44:25,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 17:44:25,194 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-22 17:44:25,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:44:25,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1602259071, now seen corresponding path program 1 times [2024-11-22 17:44:25,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:44:25,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694382718] [2024-11-22 17:44:25,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:44:25,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:44:25,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:44:25,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:44:25,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:44:25,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694382718] [2024-11-22 17:44:25,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694382718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:44:25,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:44:25,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:44:25,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189161757] [2024-11-22 17:44:25,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:44:25,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:44:25,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:44:25,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:44:25,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:44:25,359 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 442 out of 514 [2024-11-22 17:44:25,361 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 318 transitions, 937 flow. Second operand has 3 states, 3 states have (on average 445.3333333333333) internal successors, (1336), 3 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:44:25,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:44:25,361 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 442 of 514 [2024-11-22 17:44:25,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:44:25,751 INFO L124 PetriNetUnfolderBase]: 566/3731 cut-off events. [2024-11-22 17:44:25,751 INFO L125 PetriNetUnfolderBase]: For 2189/2477 co-relation queries the response was YES. [2024-11-22 17:44:25,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5915 conditions, 3731 events. 566/3731 cut-off events. For 2189/2477 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 33750 event pairs, 142 based on Foata normal form. 10/3316 useless extension candidates. Maximal degree in co-relation 5448. Up to 601 conditions per place. [2024-11-22 17:44:25,788 INFO L140 encePairwiseOnDemand]: 508/514 looper letters, 49 selfloop transitions, 9 changer transitions 1/325 dead transitions. [2024-11-22 17:44:25,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 325 transitions, 1089 flow [2024-11-22 17:44:25,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:44:25,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:44:25,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1358 transitions. [2024-11-22 17:44:25,791 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.880674448767834 [2024-11-22 17:44:25,791 INFO L175 Difference]: Start difference. First operand has 285 places, 318 transitions, 937 flow. Second operand 3 states and 1358 transitions. [2024-11-22 17:44:25,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 325 transitions, 1089 flow [2024-11-22 17:44:25,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 325 transitions, 1065 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-22 17:44:25,800 INFO L231 Difference]: Finished difference. Result has 287 places, 322 transitions, 989 flow [2024-11-22 17:44:25,801 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=913, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=989, PETRI_PLACES=287, PETRI_TRANSITIONS=322} [2024-11-22 17:44:25,801 INFO L277 CegarLoopForPetriNet]: 323 programPoint places, -36 predicate places. [2024-11-22 17:44:25,801 INFO L471 AbstractCegarLoop]: Abstraction has has 287 places, 322 transitions, 989 flow [2024-11-22 17:44:25,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 445.3333333333333) internal successors, (1336), 3 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:44:25,802 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:44:25,803 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:44:25,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 17:44:25,803 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread_usbErr12ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-22 17:44:25,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:44:25,803 INFO L85 PathProgramCache]: Analyzing trace with hash 135680379, now seen corresponding path program 1 times [2024-11-22 17:44:25,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:44:25,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936595848] [2024-11-22 17:44:25,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:44:25,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:44:25,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:44:25,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:44:25,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:44:25,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936595848] [2024-11-22 17:44:25,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936595848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:44:25,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:44:25,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:44:25,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824945312] [2024-11-22 17:44:25,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:44:25,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 17:44:25,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:44:25,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 17:44:25,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 17:44:25,921 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 457 out of 514 [2024-11-22 17:44:25,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 322 transitions, 989 flow. Second operand has 5 states, 5 states have (on average 459.4) internal successors, (2297), 5 states have internal predecessors, (2297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:44:25,924 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:44:25,924 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 457 of 514 [2024-11-22 17:44:25,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:44:26,532 INFO L124 PetriNetUnfolderBase]: 557/4613 cut-off events. [2024-11-22 17:44:26,532 INFO L125 PetriNetUnfolderBase]: For 1450/1560 co-relation queries the response was YES. [2024-11-22 17:44:26,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6727 conditions, 4613 events. 557/4613 cut-off events. For 1450/1560 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 38993 event pairs, 50 based on Foata normal form. 8/4117 useless extension candidates. Maximal degree in co-relation 6647. Up to 285 conditions per place. [2024-11-22 17:44:26,576 INFO L140 encePairwiseOnDemand]: 506/514 looper letters, 32 selfloop transitions, 8 changer transitions 0/344 dead transitions. [2024-11-22 17:44:26,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 344 transitions, 1120 flow [2024-11-22 17:44:26,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 17:44:26,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-22 17:44:26,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3240 transitions. [2024-11-22 17:44:26,639 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9005002779321846 [2024-11-22 17:44:26,640 INFO L175 Difference]: Start difference. First operand has 287 places, 322 transitions, 989 flow. Second operand 7 states and 3240 transitions. [2024-11-22 17:44:26,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 344 transitions, 1120 flow [2024-11-22 17:44:26,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 344 transitions, 1090 flow, removed 6 selfloop flow, removed 2 redundant places. [2024-11-22 17:44:26,649 INFO L231 Difference]: Finished difference. Result has 296 places, 329 transitions, 1017 flow [2024-11-22 17:44:26,650 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=959, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1017, PETRI_PLACES=296, PETRI_TRANSITIONS=329} [2024-11-22 17:44:26,650 INFO L277 CegarLoopForPetriNet]: 323 programPoint places, -27 predicate places. [2024-11-22 17:44:26,651 INFO L471 AbstractCegarLoop]: Abstraction has has 296 places, 329 transitions, 1017 flow [2024-11-22 17:44:26,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 459.4) internal successors, (2297), 5 states have internal predecessors, (2297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:44:26,652 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:44:26,652 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:44:26,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 17:44:26,652 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread_usbErr12ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-22 17:44:26,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:44:26,653 INFO L85 PathProgramCache]: Analyzing trace with hash 254624561, now seen corresponding path program 1 times [2024-11-22 17:44:26,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:44:26,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622655263] [2024-11-22 17:44:26,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:44:26,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:44:26,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:44:26,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:44:26,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:44:26,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622655263] [2024-11-22 17:44:26,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622655263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:44:26,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:44:26,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:44:26,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812805744] [2024-11-22 17:44:26,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:44:26,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 17:44:26,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:44:26,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 17:44:26,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 17:44:26,794 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 459 out of 514 [2024-11-22 17:44:26,797 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 329 transitions, 1017 flow. Second operand has 5 states, 5 states have (on average 461.0) internal successors, (2305), 5 states have internal predecessors, (2305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:44:26,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:44:26,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 459 of 514 [2024-11-22 17:44:26,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:44:27,730 INFO L124 PetriNetUnfolderBase]: 887/7750 cut-off events. [2024-11-22 17:44:27,730 INFO L125 PetriNetUnfolderBase]: For 2419/2620 co-relation queries the response was YES. [2024-11-22 17:44:27,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11498 conditions, 7750 events. 887/7750 cut-off events. For 2419/2620 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 74048 event pairs, 88 based on Foata normal form. 16/6951 useless extension candidates. Maximal degree in co-relation 11414. Up to 550 conditions per place. [2024-11-22 17:44:27,781 INFO L140 encePairwiseOnDemand]: 507/514 looper letters, 34 selfloop transitions, 9 changer transitions 0/356 dead transitions. [2024-11-22 17:44:27,781 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 356 transitions, 1168 flow [2024-11-22 17:44:27,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 17:44:27,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-22 17:44:27,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3257 transitions. [2024-11-22 17:44:27,789 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.905225125069483 [2024-11-22 17:44:27,789 INFO L175 Difference]: Start difference. First operand has 296 places, 329 transitions, 1017 flow. Second operand 7 states and 3257 transitions. [2024-11-22 17:44:27,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 356 transitions, 1168 flow [2024-11-22 17:44:27,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 356 transitions, 1168 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:44:27,799 INFO L231 Difference]: Finished difference. Result has 308 places, 337 transitions, 1085 flow [2024-11-22 17:44:27,799 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=1017, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1085, PETRI_PLACES=308, PETRI_TRANSITIONS=337} [2024-11-22 17:44:27,800 INFO L277 CegarLoopForPetriNet]: 323 programPoint places, -15 predicate places. [2024-11-22 17:44:27,800 INFO L471 AbstractCegarLoop]: Abstraction has has 308 places, 337 transitions, 1085 flow [2024-11-22 17:44:27,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 461.0) internal successors, (2305), 5 states have internal predecessors, (2305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:44:27,802 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:44:27,802 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:44:27,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 17:44:27,803 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-22 17:44:27,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:44:27,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1803342996, now seen corresponding path program 1 times [2024-11-22 17:44:27,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:44:27,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286923103] [2024-11-22 17:44:27,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:44:27,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:44:27,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 17:44:27,828 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 17:44:27,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 17:44:27,884 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 17:44:27,884 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 17:44:27,887 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE (42 of 43 remaining) [2024-11-22 17:44:27,889 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE (41 of 43 remaining) [2024-11-22 17:44:27,889 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (40 of 43 remaining) [2024-11-22 17:44:27,889 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (39 of 43 remaining) [2024-11-22 17:44:27,889 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (38 of 43 remaining) [2024-11-22 17:44:27,889 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (37 of 43 remaining) [2024-11-22 17:44:27,889 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (36 of 43 remaining) [2024-11-22 17:44:27,889 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (35 of 43 remaining) [2024-11-22 17:44:27,889 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (34 of 43 remaining) [2024-11-22 17:44:27,889 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (33 of 43 remaining) [2024-11-22 17:44:27,889 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (32 of 43 remaining) [2024-11-22 17:44:27,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 43 remaining) [2024-11-22 17:44:27,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr0ASSERT_VIOLATIONDATA_RACE (30 of 43 remaining) [2024-11-22 17:44:27,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr12ASSERT_VIOLATIONDATA_RACE (29 of 43 remaining) [2024-11-22 17:44:27,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr1ASSERT_VIOLATIONDATA_RACE (28 of 43 remaining) [2024-11-22 17:44:27,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr13ASSERT_VIOLATIONDATA_RACE (27 of 43 remaining) [2024-11-22 17:44:27,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr6ASSERT_VIOLATIONDATA_RACE (26 of 43 remaining) [2024-11-22 17:44:27,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr11ASSERT_VIOLATIONDATA_RACE (25 of 43 remaining) [2024-11-22 17:44:27,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr7ASSERT_VIOLATIONDATA_RACE (24 of 43 remaining) [2024-11-22 17:44:27,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr2ASSERT_VIOLATIONDATA_RACE (23 of 43 remaining) [2024-11-22 17:44:27,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr8ASSERT_VIOLATIONDATA_RACE (22 of 43 remaining) [2024-11-22 17:44:27,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr9ASSERT_VIOLATIONDATA_RACE (21 of 43 remaining) [2024-11-22 17:44:27,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr10ASSERT_VIOLATIONDATA_RACE (20 of 43 remaining) [2024-11-22 17:44:27,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr3ASSERT_VIOLATIONDATA_RACE (19 of 43 remaining) [2024-11-22 17:44:27,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr4ASSERT_VIOLATIONDATA_RACE (18 of 43 remaining) [2024-11-22 17:44:27,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr5ASSERT_VIOLATIONDATA_RACE (17 of 43 remaining) [2024-11-22 17:44:27,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 43 remaining) [2024-11-22 17:44:27,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (15 of 43 remaining) [2024-11-22 17:44:27,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr0ASSERT_VIOLATIONDATA_RACE (14 of 43 remaining) [2024-11-22 17:44:27,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr12ASSERT_VIOLATIONDATA_RACE (13 of 43 remaining) [2024-11-22 17:44:27,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr1ASSERT_VIOLATIONDATA_RACE (12 of 43 remaining) [2024-11-22 17:44:27,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr13ASSERT_VIOLATIONDATA_RACE (11 of 43 remaining) [2024-11-22 17:44:27,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr6ASSERT_VIOLATIONDATA_RACE (10 of 43 remaining) [2024-11-22 17:44:27,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr11ASSERT_VIOLATIONDATA_RACE (9 of 43 remaining) [2024-11-22 17:44:27,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr7ASSERT_VIOLATIONDATA_RACE (8 of 43 remaining) [2024-11-22 17:44:27,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr2ASSERT_VIOLATIONDATA_RACE (7 of 43 remaining) [2024-11-22 17:44:27,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr8ASSERT_VIOLATIONDATA_RACE (6 of 43 remaining) [2024-11-22 17:44:27,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr9ASSERT_VIOLATIONDATA_RACE (5 of 43 remaining) [2024-11-22 17:44:27,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr10ASSERT_VIOLATIONDATA_RACE (4 of 43 remaining) [2024-11-22 17:44:27,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr3ASSERT_VIOLATIONDATA_RACE (3 of 43 remaining) [2024-11-22 17:44:27,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr4ASSERT_VIOLATIONDATA_RACE (2 of 43 remaining) [2024-11-22 17:44:27,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr5ASSERT_VIOLATIONDATA_RACE (1 of 43 remaining) [2024-11-22 17:44:27,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbThread1of1ForFork0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 43 remaining) [2024-11-22 17:44:27,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 17:44:27,895 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:44:27,993 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-22 17:44:27,993 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 17:44:27,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 05:44:27 BasicIcfg [2024-11-22 17:44:27,999 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 17:44:27,999 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 17:44:27,999 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 17:44:27,999 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 17:44:28,000 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:44:18" (3/4) ... [2024-11-22 17:44:28,001 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-22 17:44:28,072 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 17:44:28,072 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 17:44:28,073 INFO L158 Benchmark]: Toolchain (without parser) took 11290.25ms. Allocated memory was 130.0MB in the beginning and 440.4MB in the end (delta: 310.4MB). Free memory was 56.4MB in the beginning and 204.5MB in the end (delta: -148.1MB). Peak memory consumption was 164.4MB. Max. memory is 16.1GB. [2024-11-22 17:44:28,073 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 130.0MB. Free memory is still 91.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 17:44:28,073 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1073.58ms. Allocated memory was 130.0MB in the beginning and 178.3MB in the end (delta: 48.2MB). Free memory was 56.4MB in the beginning and 95.6MB in the end (delta: -39.2MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2024-11-22 17:44:28,073 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.92ms. Allocated memory is still 178.3MB. Free memory was 95.6MB in the beginning and 91.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-22 17:44:28,073 INFO L158 Benchmark]: Boogie Preprocessor took 60.03ms. Allocated memory is still 178.3MB. Free memory was 91.4MB in the beginning and 88.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-22 17:44:28,074 INFO L158 Benchmark]: RCFGBuilder took 794.40ms. Allocated memory is still 178.3MB. Free memory was 88.2MB in the beginning and 55.7MB in the end (delta: 32.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-22 17:44:28,074 INFO L158 Benchmark]: TraceAbstraction took 9205.68ms. Allocated memory was 178.3MB in the beginning and 440.4MB in the end (delta: 262.1MB). Free memory was 54.7MB in the beginning and 222.3MB in the end (delta: -167.6MB). Peak memory consumption was 93.5MB. Max. memory is 16.1GB. [2024-11-22 17:44:28,074 INFO L158 Benchmark]: Witness Printer took 73.04ms. Allocated memory is still 440.4MB. Free memory was 222.3MB in the beginning and 204.5MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-22 17:44:28,075 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 130.0MB. Free memory is still 91.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1073.58ms. Allocated memory was 130.0MB in the beginning and 178.3MB in the end (delta: 48.2MB). Free memory was 56.4MB in the beginning and 95.6MB in the end (delta: -39.2MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.92ms. Allocated memory is still 178.3MB. Free memory was 95.6MB in the beginning and 91.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.03ms. Allocated memory is still 178.3MB. Free memory was 91.4MB in the beginning and 88.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 794.40ms. Allocated memory is still 178.3MB. Free memory was 88.2MB in the beginning and 55.7MB in the end (delta: 32.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 9205.68ms. Allocated memory was 178.3MB in the beginning and 440.4MB in the end (delta: 262.1MB). Free memory was 54.7MB in the beginning and 222.3MB in the end (delta: -167.6MB). Peak memory consumption was 93.5MB. Max. memory is 16.1GB. * Witness Printer took 73.04ms. Allocated memory is still 440.4MB. Free memory was 222.3MB in the beginning and 204.5MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1699]: Data race detected Data race detected The following path leads to a data race: [L1694] 0 pthread_t t1, t2; VAL [t1=0, t2=0] [L1695] 0 pthread_mutex_t mutex; VAL [mutex={3:0}, t1=0, t2=0] [L1696] 0 int pdev; VAL [mutex={3:0}, pdev=0, t1=0, t2=0] [L1741] 0 int ldv_usb_state; VAL [ldv_usb_state=0, mutex={3:0}, pdev=0, t1=0, t2=0] [L1798] CALL 0 module_init() [L1779] 0 pdev = 1 VAL [ldv_usb_state=0, mutex={3:0}, pdev=1, t1=0, t2=0] [L1780] EXPR 0 pdev==1 [L1780] CALL 0 ldv_assert(pdev==1) [L1693] COND FALSE 0 !(!expression) VAL [\old(expression)=1, expression=1, ldv_usb_state=0, mutex={3:0}, pdev=1, t1=0, t2=0] [L1780] RET 0 ldv_assert(pdev==1) [L1781] COND TRUE 0 __VERIFIER_nondet_int() VAL [ldv_usb_state=0, mutex={3:0}, pdev=1, t1=0, t2=0] [L1782] 0 pthread_create(&t1, ((void *)0), thread_usb, ((void *)0)) VAL [ldv_usb_state=0, mutex={3:0}, pdev=1, t1=-1, t2=0] [L1782] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread_usb, ((void *)0)) VAL [ldv_usb_state=0, mutex={3:0}, pdev=1, t1=-1, t2=0] [L1743] 1 ldv_usb_state = 0 VAL [\old(arg)={0:0}, arg={0:0}, ldv_usb_state=0, mutex={3:0}, pdev=1, t1=-1, t2=0] [L1744] 1 int probe_ret; VAL [\old(arg)={0:0}, arg={0:0}, ldv_usb_state=0, mutex={3:0}, pdev=1, t1=-1, t2=0] [L1745] COND TRUE 1 1 VAL [\old(arg)={0:0}, arg={0:0}, ldv_usb_state=0, mutex={3:0}, pdev=1, t1=-1, t2=0] [L1747] 1 case 0: VAL [\old(arg)={0:0}, arg={0:0}, ldv_usb_state=0, mutex={3:0}, pdev=1, t1=-1, t2=0] [L1748] 1 ldv_usb_state==0 VAL [\old(arg)={0:0}, arg={0:0}, ldv_usb_state=0, mutex={3:0}, pdev=1, t1=-1, t2=0] [L1747] 1 case 0: [L1749] CALL, EXPR 1 ath_ahb_probe() [L1730] 1 int error; [L1731] CALL, EXPR 1 ieee80211_register_hw() [L1717] COND TRUE 1 __VERIFIER_nondet_int() VAL [ldv_usb_state=0, mutex={3:0}, pdev=1, t1=-1, t2=0] [L1718] 1 pthread_create(&t2, ((void *)0), thread_ath9k, ((void *)0)) VAL [ldv_usb_state=0, mutex={3:0}, pdev=1, t1=-1, t2=0] [L1718] FCALL, FORK 1 pthread_create(&t2, ((void *)0), thread_ath9k, ((void *)0)) VAL [ldv_usb_state=0, mutex={3:0}, pdev=1, t1=-1, t2=0] [L1704] COND TRUE 2 1 VAL [\old(arg)={0:0}, arg={0:0}, ldv_usb_state=0, mutex={3:0}, pdev=1, t1=-1, t2=0] [L1706] 2 case 1: [L1707] CALL 2 ath9k_flush() [L1719] 1 return 0; VAL [\result=0, ldv_usb_state=0, mutex={3:0}, pdev=1, t1=-1, t2=0] [L1731] RET, EXPR 1 ieee80211_register_hw() [L1731] 1 error = ieee80211_register_hw() VAL [error=0, ldv_usb_state=0, mutex={3:0}, pdev=1, t1=-1, t2=0] [L1732] COND FALSE 1 !(\read(error)) VAL [error=0, ldv_usb_state=0, mutex={3:0}, pdev=1, t1=-1, t2=0] [L1734] 1 return 0; VAL [\result=0, error=0, ldv_usb_state=0, mutex={3:0}, pdev=1, t1=-1, t2=0] [L1749] RET, EXPR 1 ath_ahb_probe() [L1749] 1 probe_ret = ath_ahb_probe() VAL [\old(arg)={0:0}, arg={0:0}, ldv_usb_state=0, mutex={3:0}, pdev=1, probe_ret=0, t1=-1, t2=0] [L1747] 1 case 0: VAL [\old(arg)={0:0}, arg={0:0}, ldv_usb_state=0, mutex={3:0}, pdev=1, probe_ret=0, t1=-1, t2=0] [L1752] 1 ldv_usb_state = 1 VAL [\old(arg)={0:0}, arg={0:0}, ldv_usb_state=1, mutex={3:0}, pdev=1, probe_ret=0, t1=-1, t2=0] [L1753] 1 pdev = 7 VAL [\old(arg)={0:0}, arg={0:0}, ldv_usb_state=1, mutex={3:0}, pdev=7, probe_ret=0, t1=-1, t2=0] [L1699] 2 pdev = 6 VAL [ldv_usb_state=1, mutex={3:0}, pdev=6, t1=-1, t2=0] [L1753] 1 pdev = 7 VAL [\old(arg)={0:0}, arg={0:0}, ldv_usb_state=1, mutex={3:0}, pdev=6, probe_ret=0, t1=-1, t2=0] [L1699] 2 pdev = 6 VAL [ldv_usb_state=1, mutex={3:0}, pdev=6, t1=-1, t2=0] Now there is a data race on ~pdev~0 between C: pdev = 7 [1753] and C: pdev = 6 [1699] - UnprovableResult [Line: 1700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1779]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1780]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1785]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1782]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1786]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1792]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1794]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1795]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1782]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1743]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1773]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1748]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1774]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1758]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1766]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1760]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1761]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1762]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1752]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1753]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1754]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1718]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1718]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 517 locations, 43 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.8s, OverallIterations: 17, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1300 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 454 mSDsluCounter, 275 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 51 mSDsCounter, 78 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1332 IncrementalHoareTripleChecker+Invalid, 1410 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 78 mSolverCounterUnsat, 224 mSDtfsCounter, 1332 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1085occurred in iteration=16, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 1230 NumberOfCodeBlocks, 1230 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1099 ConstructedInterpolants, 0 QuantifiedInterpolants, 1179 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-22 17:44:28,101 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE