/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 02:30:07,090 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 02:30:07,146 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 02:30:07,149 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 02:30:07,150 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 02:30:07,182 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 02:30:07,183 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 02:30:07,183 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 02:30:07,184 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 02:30:07,187 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 02:30:07,187 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 02:30:07,188 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 02:30:07,188 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 02:30:07,188 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 02:30:07,188 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 02:30:07,188 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 02:30:07,188 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 02:30:07,189 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 02:30:07,189 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 02:30:07,189 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 02:30:07,189 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 02:30:07,190 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 02:30:07,190 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 02:30:07,191 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 02:30:07,191 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 02:30:07,191 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 02:30:07,191 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 02:30:07,191 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 02:30:07,192 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 02:30:07,192 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 02:30:07,193 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 02:30:07,193 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 02:30:07,193 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 02:30:07,193 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 02:30:07,193 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 02:30:07,193 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 02:30:07,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 02:30:07,421 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 02:30:07,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 02:30:07,423 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 02:30:07,424 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 02:30:07,425 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i [2023-08-25 02:30:08,547 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 02:30:08,850 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 02:30:08,851 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i [2023-08-25 02:30:08,869 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58d851a18/a35b9b29fb664c96986ed68222da5667/FLAG35b322b9a [2023-08-25 02:30:08,882 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58d851a18/a35b9b29fb664c96986ed68222da5667 [2023-08-25 02:30:08,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 02:30:08,885 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 02:30:08,886 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 02:30:08,886 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 02:30:08,889 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 02:30:08,889 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 02:30:08" (1/1) ... [2023-08-25 02:30:08,890 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@238cb218 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:30:08, skipping insertion in model container [2023-08-25 02:30:08,890 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 02:30:08" (1/1) ... [2023-08-25 02:30:08,944 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 02:30:09,472 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 02:30:09,484 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 02:30:09,496 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [237] [2023-08-25 02:30:09,498 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [237] [2023-08-25 02:30:09,502 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [729] [2023-08-25 02:30:09,524 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 02:30:09,609 INFO L206 MainTranslator]: Completed translation [2023-08-25 02:30:09,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:30:09 WrapperNode [2023-08-25 02:30:09,610 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 02:30:09,610 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 02:30:09,610 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 02:30:09,611 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 02:30:09,614 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:30:09" (1/1) ... [2023-08-25 02:30:09,644 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:30:09" (1/1) ... [2023-08-25 02:30:09,685 INFO L138 Inliner]: procedures = 486, calls = 44, calls flagged for inlining = 16, calls inlined = 21, statements flattened = 287 [2023-08-25 02:30:09,685 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 02:30:09,687 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 02:30:09,687 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 02:30:09,687 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 02:30:09,692 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:30:09" (1/1) ... [2023-08-25 02:30:09,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:30:09" (1/1) ... [2023-08-25 02:30:09,707 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:30:09" (1/1) ... [2023-08-25 02:30:09,708 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:30:09" (1/1) ... [2023-08-25 02:30:09,717 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:30:09" (1/1) ... [2023-08-25 02:30:09,739 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:30:09" (1/1) ... [2023-08-25 02:30:09,741 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:30:09" (1/1) ... [2023-08-25 02:30:09,743 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:30:09" (1/1) ... [2023-08-25 02:30:09,754 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 02:30:09,755 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 02:30:09,755 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 02:30:09,755 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 02:30:09,756 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:30:09" (1/1) ... [2023-08-25 02:30:09,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 02:30:09,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 02:30:09,793 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 02:30:09,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 02:30:09,840 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2023-08-25 02:30:09,840 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2023-08-25 02:30:09,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 02:30:09,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 02:30:09,840 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2023-08-25 02:30:09,840 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2023-08-25 02:30:09,841 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 02:30:09,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 02:30:09,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-25 02:30:09,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 02:30:09,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 02:30:09,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 02:30:09,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 02:30:09,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 02:30:09,842 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 02:30:10,028 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 02:30:10,029 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 02:30:10,382 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 02:30:10,390 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 02:30:10,390 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-25 02:30:10,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 02:30:10 BoogieIcfgContainer [2023-08-25 02:30:10,392 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 02:30:10,393 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 02:30:10,393 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 02:30:10,395 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 02:30:10,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 02:30:08" (1/3) ... [2023-08-25 02:30:10,396 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7363dc38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 02:30:10, skipping insertion in model container [2023-08-25 02:30:10,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 02:30:09" (2/3) ... [2023-08-25 02:30:10,396 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7363dc38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 02:30:10, skipping insertion in model container [2023-08-25 02:30:10,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 02:30:10" (3/3) ... [2023-08-25 02:30:10,397 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2023-08-25 02:30:10,410 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 02:30:10,410 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2023-08-25 02:30:10,410 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 02:30:10,491 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2023-08-25 02:30:10,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 421 places, 459 transitions, 948 flow [2023-08-25 02:30:10,653 INFO L124 PetriNetUnfolderBase]: 41/467 cut-off events. [2023-08-25 02:30:10,654 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 02:30:10,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 479 conditions, 467 events. 41/467 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1302 event pairs, 0 based on Foata normal form. 0/383 useless extension candidates. Maximal degree in co-relation 313. Up to 11 conditions per place. [2023-08-25 02:30:10,663 INFO L82 GeneralOperation]: Start removeDead. Operand has 421 places, 459 transitions, 948 flow [2023-08-25 02:30:10,671 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 296 places, 319 transitions, 655 flow [2023-08-25 02:30:10,674 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 02:30:10,683 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 296 places, 319 transitions, 655 flow [2023-08-25 02:30:10,686 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 296 places, 319 transitions, 655 flow [2023-08-25 02:30:10,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 296 places, 319 transitions, 655 flow [2023-08-25 02:30:10,731 INFO L124 PetriNetUnfolderBase]: 41/467 cut-off events. [2023-08-25 02:30:10,731 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 02:30:10,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 479 conditions, 467 events. 41/467 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1300 event pairs, 0 based on Foata normal form. 0/383 useless extension candidates. Maximal degree in co-relation 313. Up to 11 conditions per place. [2023-08-25 02:30:10,744 INFO L119 LiptonReduction]: Number of co-enabled transitions 18942 [2023-08-25 02:30:16,627 INFO L134 LiptonReduction]: Checked pairs total: 60318 [2023-08-25 02:30:16,627 INFO L136 LiptonReduction]: Total number of compositions: 414 [2023-08-25 02:30:16,640 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 02:30:16,647 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@57d5f06, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 02:30:16,647 INFO L358 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2023-08-25 02:30:16,648 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 02:30:16,648 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 02:30:16,648 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 02:30:16,648 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:30:16,649 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 02:30:16,652 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr2ASSERT_VIOLATIONASSERT (and 42 more)] === [2023-08-25 02:30:16,655 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:30:16,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1374, now seen corresponding path program 1 times [2023-08-25 02:30:16,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:30:16,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560939078] [2023-08-25 02:30:16,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:30:16,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:30:16,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:30:16,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 02:30:16,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:30:16,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560939078] [2023-08-25 02:30:16,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560939078] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:30:16,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:30:16,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 02:30:16,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265555249] [2023-08-25 02:30:16,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:30:16,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 02:30:16,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:30:16,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 02:30:16,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 02:30:16,881 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 421 out of 873 [2023-08-25 02:30:16,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 82 transitions, 181 flow. Second operand has 2 states, 2 states have (on average 421.5) internal successors, (843), 2 states have internal predecessors, (843), 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) [2023-08-25 02:30:16,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:30:16,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 421 of 873 [2023-08-25 02:30:16,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:30:17,040 INFO L124 PetriNetUnfolderBase]: 730/1396 cut-off events. [2023-08-25 02:30:17,041 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2023-08-25 02:30:17,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2521 conditions, 1396 events. 730/1396 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 7951 event pairs, 449 based on Foata normal form. 77/885 useless extension candidates. Maximal degree in co-relation 2296. Up to 1077 conditions per place. [2023-08-25 02:30:17,048 INFO L140 encePairwiseOnDemand]: 855/873 looper letters, 35 selfloop transitions, 0 changer transitions 0/64 dead transitions. [2023-08-25 02:30:17,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 64 transitions, 215 flow [2023-08-25 02:30:17,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 02:30:17,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 02:30:17,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 895 transitions. [2023-08-25 02:30:17,061 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5126002290950744 [2023-08-25 02:30:17,061 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 895 transitions. [2023-08-25 02:30:17,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 895 transitions. [2023-08-25 02:30:17,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:30:17,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 895 transitions. [2023-08-25 02:30:17,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 447.5) internal successors, (895), 2 states have internal predecessors, (895), 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) [2023-08-25 02:30:17,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 873.0) internal successors, (2619), 3 states have internal predecessors, (2619), 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) [2023-08-25 02:30:17,075 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 873.0) internal successors, (2619), 3 states have internal predecessors, (2619), 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) [2023-08-25 02:30:17,076 INFO L175 Difference]: Start difference. First operand has 76 places, 82 transitions, 181 flow. Second operand 2 states and 895 transitions. [2023-08-25 02:30:17,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 64 transitions, 215 flow [2023-08-25 02:30:17,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 64 transitions, 211 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 02:30:17,081 INFO L231 Difference]: Finished difference. Result has 60 places, 64 transitions, 141 flow [2023-08-25 02:30:17,082 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=873, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=141, PETRI_PLACES=60, PETRI_TRANSITIONS=64} [2023-08-25 02:30:17,084 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -16 predicate places. [2023-08-25 02:30:17,084 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 64 transitions, 141 flow [2023-08-25 02:30:17,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 421.5) internal successors, (843), 2 states have internal predecessors, (843), 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) [2023-08-25 02:30:17,085 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:30:17,085 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 02:30:17,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 02:30:17,086 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread_usbErr10ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr2ASSERT_VIOLATIONASSERT (and 42 more)] === [2023-08-25 02:30:17,086 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:30:17,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1834518236, now seen corresponding path program 1 times [2023-08-25 02:30:17,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:30:17,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783050242] [2023-08-25 02:30:17,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:30:17,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:30:17,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:30:17,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 02:30:17,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:30:17,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783050242] [2023-08-25 02:30:17,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783050242] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:30:17,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:30:17,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 02:30:17,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702575578] [2023-08-25 02:30:17,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:30:17,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:30:17,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:30:17,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:30:17,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:30:17,160 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 371 out of 873 [2023-08-25 02:30:17,161 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 64 transitions, 141 flow. Second operand has 3 states, 3 states have (on average 373.0) internal successors, (1119), 3 states have internal predecessors, (1119), 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) [2023-08-25 02:30:17,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:30:17,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 371 of 873 [2023-08-25 02:30:17,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:30:17,433 INFO L124 PetriNetUnfolderBase]: 1674/2670 cut-off events. [2023-08-25 02:30:17,433 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-25 02:30:17,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5252 conditions, 2670 events. 1674/2670 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 13013 event pairs, 1133 based on Foata normal form. 0/1547 useless extension candidates. Maximal degree in co-relation 5248. Up to 2418 conditions per place. [2023-08-25 02:30:17,445 INFO L140 encePairwiseOnDemand]: 868/873 looper letters, 60 selfloop transitions, 4 changer transitions 0/79 dead transitions. [2023-08-25 02:30:17,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 79 transitions, 299 flow [2023-08-25 02:30:17,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 02:30:17,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 02:30:17,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1178 transitions. [2023-08-25 02:30:17,448 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44978999618174875 [2023-08-25 02:30:17,448 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1178 transitions. [2023-08-25 02:30:17,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1178 transitions. [2023-08-25 02:30:17,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:30:17,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1178 transitions. [2023-08-25 02:30:17,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 392.6666666666667) internal successors, (1178), 3 states have internal predecessors, (1178), 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) [2023-08-25 02:30:17,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 873.0) internal successors, (3492), 4 states have internal predecessors, (3492), 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) [2023-08-25 02:30:17,455 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 873.0) internal successors, (3492), 4 states have internal predecessors, (3492), 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) [2023-08-25 02:30:17,455 INFO L175 Difference]: Start difference. First operand has 60 places, 64 transitions, 141 flow. Second operand 3 states and 1178 transitions. [2023-08-25 02:30:17,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 79 transitions, 299 flow [2023-08-25 02:30:17,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 79 transitions, 299 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 02:30:17,457 INFO L231 Difference]: Finished difference. Result has 63 places, 67 transitions, 167 flow [2023-08-25 02:30:17,457 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=873, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=167, PETRI_PLACES=63, PETRI_TRANSITIONS=67} [2023-08-25 02:30:17,457 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -13 predicate places. [2023-08-25 02:30:17,458 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 67 transitions, 167 flow [2023-08-25 02:30:17,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 373.0) internal successors, (1119), 3 states have internal predecessors, (1119), 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) [2023-08-25 02:30:17,458 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:30:17,458 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:30:17,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 02:30:17,459 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread_usbErr11ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr2ASSERT_VIOLATIONASSERT (and 42 more)] === [2023-08-25 02:30:17,459 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:30:17,459 INFO L85 PathProgramCache]: Analyzing trace with hash -2035253880, now seen corresponding path program 1 times [2023-08-25 02:30:17,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:30:17,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664757530] [2023-08-25 02:30:17,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:30:17,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:30:17,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:30:17,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 02:30:17,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:30:17,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664757530] [2023-08-25 02:30:17,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664757530] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:30:17,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:30:17,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 02:30:17,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586895704] [2023-08-25 02:30:17,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:30:17,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:30:17,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:30:17,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:30:17,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:30:17,511 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 873 [2023-08-25 02:30:17,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 67 transitions, 167 flow. Second operand has 3 states, 3 states have (on average 375.6666666666667) internal successors, (1127), 3 states have internal predecessors, (1127), 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) [2023-08-25 02:30:17,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:30:17,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 873 [2023-08-25 02:30:17,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:30:17,721 INFO L124 PetriNetUnfolderBase]: 1714/2787 cut-off events. [2023-08-25 02:30:17,721 INFO L125 PetriNetUnfolderBase]: For 232/232 co-relation queries the response was YES. [2023-08-25 02:30:17,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5933 conditions, 2787 events. 1714/2787 cut-off events. For 232/232 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 14052 event pairs, 707 based on Foata normal form. 0/1719 useless extension candidates. Maximal degree in co-relation 5927. Up to 1822 conditions per place. [2023-08-25 02:30:17,736 INFO L140 encePairwiseOnDemand]: 859/873 looper letters, 79 selfloop transitions, 13 changer transitions 0/107 dead transitions. [2023-08-25 02:30:17,736 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 107 transitions, 449 flow [2023-08-25 02:30:17,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 02:30:17,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 02:30:17,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1209 transitions. [2023-08-25 02:30:17,739 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4616265750286369 [2023-08-25 02:30:17,739 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1209 transitions. [2023-08-25 02:30:17,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1209 transitions. [2023-08-25 02:30:17,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:30:17,740 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1209 transitions. [2023-08-25 02:30:17,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 403.0) internal successors, (1209), 3 states have internal predecessors, (1209), 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) [2023-08-25 02:30:17,745 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 873.0) internal successors, (3492), 4 states have internal predecessors, (3492), 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) [2023-08-25 02:30:17,746 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 873.0) internal successors, (3492), 4 states have internal predecessors, (3492), 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) [2023-08-25 02:30:17,746 INFO L175 Difference]: Start difference. First operand has 63 places, 67 transitions, 167 flow. Second operand 3 states and 1209 transitions. [2023-08-25 02:30:17,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 107 transitions, 449 flow [2023-08-25 02:30:17,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 107 transitions, 442 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 02:30:17,749 INFO L231 Difference]: Finished difference. Result has 66 places, 77 transitions, 269 flow [2023-08-25 02:30:17,749 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=873, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=269, PETRI_PLACES=66, PETRI_TRANSITIONS=77} [2023-08-25 02:30:17,750 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -10 predicate places. [2023-08-25 02:30:17,750 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 77 transitions, 269 flow [2023-08-25 02:30:17,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 375.6666666666667) internal successors, (1127), 3 states have internal predecessors, (1127), 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) [2023-08-25 02:30:17,751 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:30:17,751 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:30:17,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 02:30:17,751 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr2ASSERT_VIOLATIONASSERT (and 42 more)] === [2023-08-25 02:30:17,751 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:30:17,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1577638128, now seen corresponding path program 1 times [2023-08-25 02:30:17,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:30:17,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851035864] [2023-08-25 02:30:17,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:30:17,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:30:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:30:17,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 02:30:17,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:30:17,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851035864] [2023-08-25 02:30:17,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851035864] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:30:17,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:30:17,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 02:30:17,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223216333] [2023-08-25 02:30:17,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:30:17,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:30:17,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:30:17,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:30:17,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:30:17,810 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 414 out of 873 [2023-08-25 02:30:17,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 77 transitions, 269 flow. Second operand has 3 states, 3 states have (on average 414.6666666666667) internal successors, (1244), 3 states have internal predecessors, (1244), 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) [2023-08-25 02:30:17,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:30:17,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 414 of 873 [2023-08-25 02:30:17,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:30:18,005 INFO L124 PetriNetUnfolderBase]: 1069/1986 cut-off events. [2023-08-25 02:30:18,005 INFO L125 PetriNetUnfolderBase]: For 545/593 co-relation queries the response was YES. [2023-08-25 02:30:18,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4243 conditions, 1986 events. 1069/1986 cut-off events. For 545/593 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 11535 event pairs, 610 based on Foata normal form. 0/1260 useless extension candidates. Maximal degree in co-relation 4236. Up to 1485 conditions per place. [2023-08-25 02:30:18,017 INFO L140 encePairwiseOnDemand]: 870/873 looper letters, 37 selfloop transitions, 0 changer transitions 2/78 dead transitions. [2023-08-25 02:30:18,017 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 78 transitions, 349 flow [2023-08-25 02:30:18,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 02:30:18,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 02:30:18,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1279 transitions. [2023-08-25 02:30:18,020 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48835433371515846 [2023-08-25 02:30:18,020 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1279 transitions. [2023-08-25 02:30:18,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1279 transitions. [2023-08-25 02:30:18,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:30:18,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1279 transitions. [2023-08-25 02:30:18,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 426.3333333333333) internal successors, (1279), 3 states have internal predecessors, (1279), 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) [2023-08-25 02:30:18,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 873.0) internal successors, (3492), 4 states have internal predecessors, (3492), 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) [2023-08-25 02:30:18,029 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 873.0) internal successors, (3492), 4 states have internal predecessors, (3492), 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) [2023-08-25 02:30:18,029 INFO L175 Difference]: Start difference. First operand has 66 places, 77 transitions, 269 flow. Second operand 3 states and 1279 transitions. [2023-08-25 02:30:18,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 78 transitions, 349 flow [2023-08-25 02:30:18,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 78 transitions, 323 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 02:30:18,035 INFO L231 Difference]: Finished difference. Result has 67 places, 76 transitions, 243 flow [2023-08-25 02:30:18,035 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=873, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=243, PETRI_PLACES=67, PETRI_TRANSITIONS=76} [2023-08-25 02:30:18,037 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -9 predicate places. [2023-08-25 02:30:18,038 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 76 transitions, 243 flow [2023-08-25 02:30:18,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 414.6666666666667) internal successors, (1244), 3 states have internal predecessors, (1244), 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) [2023-08-25 02:30:18,039 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:30:18,039 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:30:18,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 02:30:18,039 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread_usbErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr2ASSERT_VIOLATIONASSERT (and 42 more)] === [2023-08-25 02:30:18,039 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:30:18,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1945351452, now seen corresponding path program 1 times [2023-08-25 02:30:18,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:30:18,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081532245] [2023-08-25 02:30:18,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:30:18,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:30:18,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:30:18,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 02:30:18,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:30:18,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081532245] [2023-08-25 02:30:18,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081532245] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:30:18,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:30:18,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 02:30:18,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441632515] [2023-08-25 02:30:18,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:30:18,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:30:18,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:30:18,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:30:18,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:30:18,109 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 873 [2023-08-25 02:30:18,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 76 transitions, 243 flow. Second operand has 3 states, 3 states have (on average 404.6666666666667) internal successors, (1214), 3 states have internal predecessors, (1214), 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) [2023-08-25 02:30:18,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:30:18,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 873 [2023-08-25 02:30:18,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:30:18,295 INFO L124 PetriNetUnfolderBase]: 1083/2016 cut-off events. [2023-08-25 02:30:18,295 INFO L125 PetriNetUnfolderBase]: For 360/408 co-relation queries the response was YES. [2023-08-25 02:30:18,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4344 conditions, 2016 events. 1083/2016 cut-off events. For 360/408 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 11800 event pairs, 487 based on Foata normal form. 4/1273 useless extension candidates. Maximal degree in co-relation 4336. Up to 1208 conditions per place. [2023-08-25 02:30:18,306 INFO L140 encePairwiseOnDemand]: 866/873 looper letters, 44 selfloop transitions, 6 changer transitions 0/89 dead transitions. [2023-08-25 02:30:18,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 89 transitions, 373 flow [2023-08-25 02:30:18,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 02:30:18,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 02:30:18,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1257 transitions. [2023-08-25 02:30:18,309 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47995418098510884 [2023-08-25 02:30:18,309 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1257 transitions. [2023-08-25 02:30:18,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1257 transitions. [2023-08-25 02:30:18,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:30:18,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1257 transitions. [2023-08-25 02:30:18,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 419.0) internal successors, (1257), 3 states have internal predecessors, (1257), 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) [2023-08-25 02:30:18,314 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 873.0) internal successors, (3492), 4 states have internal predecessors, (3492), 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) [2023-08-25 02:30:18,316 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 873.0) internal successors, (3492), 4 states have internal predecessors, (3492), 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) [2023-08-25 02:30:18,316 INFO L175 Difference]: Start difference. First operand has 67 places, 76 transitions, 243 flow. Second operand 3 states and 1257 transitions. [2023-08-25 02:30:18,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 89 transitions, 373 flow [2023-08-25 02:30:18,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 89 transitions, 365 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-08-25 02:30:18,319 INFO L231 Difference]: Finished difference. Result has 69 places, 79 transitions, 277 flow [2023-08-25 02:30:18,319 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=873, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=277, PETRI_PLACES=69, PETRI_TRANSITIONS=79} [2023-08-25 02:30:18,319 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -7 predicate places. [2023-08-25 02:30:18,319 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 79 transitions, 277 flow [2023-08-25 02:30:18,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 404.6666666666667) internal successors, (1214), 3 states have internal predecessors, (1214), 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) [2023-08-25 02:30:18,320 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:30:18,320 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:30:18,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 02:30:18,321 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread_usbThread1of1ForFork0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr2ASSERT_VIOLATIONASSERT (and 42 more)] === [2023-08-25 02:30:18,321 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:30:18,321 INFO L85 PathProgramCache]: Analyzing trace with hash 997471060, now seen corresponding path program 1 times [2023-08-25 02:30:18,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:30:18,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733532228] [2023-08-25 02:30:18,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:30:18,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:30:18,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:30:18,366 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 02:30:18,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:30:18,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733532228] [2023-08-25 02:30:18,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733532228] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:30:18,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:30:18,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 02:30:18,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175642094] [2023-08-25 02:30:18,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:30:18,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:30:18,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:30:18,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:30:18,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:30:18,369 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 873 [2023-08-25 02:30:18,370 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 79 transitions, 277 flow. Second operand has 3 states, 3 states have (on average 405.6666666666667) internal successors, (1217), 3 states have internal predecessors, (1217), 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) [2023-08-25 02:30:18,370 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:30:18,370 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 873 [2023-08-25 02:30:18,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:30:18,536 INFO L124 PetriNetUnfolderBase]: 969/1838 cut-off events. [2023-08-25 02:30:18,536 INFO L125 PetriNetUnfolderBase]: For 317/365 co-relation queries the response was YES. [2023-08-25 02:30:18,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3887 conditions, 1838 events. 969/1838 cut-off events. For 317/365 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 10782 event pairs, 457 based on Foata normal form. 32/1297 useless extension candidates. Maximal degree in co-relation 3878. Up to 1071 conditions per place. [2023-08-25 02:30:18,547 INFO L140 encePairwiseOnDemand]: 868/873 looper letters, 45 selfloop transitions, 2 changer transitions 0/85 dead transitions. [2023-08-25 02:30:18,547 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 85 transitions, 369 flow [2023-08-25 02:30:18,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 02:30:18,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 02:30:18,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1256 transitions. [2023-08-25 02:30:18,550 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47957235586101565 [2023-08-25 02:30:18,550 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1256 transitions. [2023-08-25 02:30:18,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1256 transitions. [2023-08-25 02:30:18,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:30:18,550 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1256 transitions. [2023-08-25 02:30:18,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 418.6666666666667) internal successors, (1256), 3 states have internal predecessors, (1256), 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) [2023-08-25 02:30:18,555 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 873.0) internal successors, (3492), 4 states have internal predecessors, (3492), 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) [2023-08-25 02:30:18,556 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 873.0) internal successors, (3492), 4 states have internal predecessors, (3492), 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) [2023-08-25 02:30:18,557 INFO L175 Difference]: Start difference. First operand has 69 places, 79 transitions, 277 flow. Second operand 3 states and 1256 transitions. [2023-08-25 02:30:18,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 85 transitions, 369 flow [2023-08-25 02:30:18,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 85 transitions, 357 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 02:30:18,561 INFO L231 Difference]: Finished difference. Result has 66 places, 75 transitions, 247 flow [2023-08-25 02:30:18,562 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=873, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=247, PETRI_PLACES=66, PETRI_TRANSITIONS=75} [2023-08-25 02:30:18,564 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -10 predicate places. [2023-08-25 02:30:18,565 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 75 transitions, 247 flow [2023-08-25 02:30:18,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 405.6666666666667) internal successors, (1217), 3 states have internal predecessors, (1217), 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) [2023-08-25 02:30:18,566 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:30:18,567 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:30:18,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 02:30:18,567 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr2ASSERT_VIOLATIONASSERT (and 42 more)] === [2023-08-25 02:30:18,567 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:30:18,567 INFO L85 PathProgramCache]: Analyzing trace with hash 981049137, now seen corresponding path program 1 times [2023-08-25 02:30:18,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:30:18,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234477776] [2023-08-25 02:30:18,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:30:18,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:30:18,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:30:18,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 02:30:18,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:30:18,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234477776] [2023-08-25 02:30:18,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234477776] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:30:18,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:30:18,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 02:30:18,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211890211] [2023-08-25 02:30:18,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:30:18,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:30:18,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:30:18,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:30:18,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:30:18,614 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 873 [2023-08-25 02:30:18,615 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 75 transitions, 247 flow. Second operand has 3 states, 3 states have (on average 372.6666666666667) internal successors, (1118), 3 states have internal predecessors, (1118), 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) [2023-08-25 02:30:18,615 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:30:18,615 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 873 [2023-08-25 02:30:18,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:30:18,802 INFO L124 PetriNetUnfolderBase]: 1488/2490 cut-off events. [2023-08-25 02:30:18,802 INFO L125 PetriNetUnfolderBase]: For 612/618 co-relation queries the response was YES. [2023-08-25 02:30:18,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5848 conditions, 2490 events. 1488/2490 cut-off events. For 612/618 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 12676 event pairs, 876 based on Foata normal form. 0/1743 useless extension candidates. Maximal degree in co-relation 5840. Up to 2168 conditions per place. [2023-08-25 02:30:18,817 INFO L140 encePairwiseOnDemand]: 866/873 looper letters, 80 selfloop transitions, 10 changer transitions 0/104 dead transitions. [2023-08-25 02:30:18,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 104 transitions, 516 flow [2023-08-25 02:30:18,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 02:30:18,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 02:30:18,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1187 transitions. [2023-08-25 02:30:18,820 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45322642229858723 [2023-08-25 02:30:18,821 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1187 transitions. [2023-08-25 02:30:18,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1187 transitions. [2023-08-25 02:30:18,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:30:18,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1187 transitions. [2023-08-25 02:30:18,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 395.6666666666667) internal successors, (1187), 3 states have internal predecessors, (1187), 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) [2023-08-25 02:30:18,826 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 873.0) internal successors, (3492), 4 states have internal predecessors, (3492), 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) [2023-08-25 02:30:18,826 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 873.0) internal successors, (3492), 4 states have internal predecessors, (3492), 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) [2023-08-25 02:30:18,826 INFO L175 Difference]: Start difference. First operand has 66 places, 75 transitions, 247 flow. Second operand 3 states and 1187 transitions. [2023-08-25 02:30:18,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 104 transitions, 516 flow [2023-08-25 02:30:18,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 104 transitions, 510 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 02:30:18,829 INFO L231 Difference]: Finished difference. Result has 67 places, 81 transitions, 311 flow [2023-08-25 02:30:18,829 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=873, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=311, PETRI_PLACES=67, PETRI_TRANSITIONS=81} [2023-08-25 02:30:18,832 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -9 predicate places. [2023-08-25 02:30:18,832 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 81 transitions, 311 flow [2023-08-25 02:30:18,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 372.6666666666667) internal successors, (1118), 3 states have internal predecessors, (1118), 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) [2023-08-25 02:30:18,833 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:30:18,834 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:30:18,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 02:30:18,834 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread_usbErr12ASSERT_VIOLATIONASSERT === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr2ASSERT_VIOLATIONASSERT (and 42 more)] === [2023-08-25 02:30:18,834 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:30:18,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1331640456, now seen corresponding path program 1 times [2023-08-25 02:30:18,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:30:18,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999607534] [2023-08-25 02:30:18,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:30:18,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:30:18,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:30:18,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 02:30:18,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:30:18,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999607534] [2023-08-25 02:30:18,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999607534] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:30:18,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:30:18,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 02:30:18,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797640002] [2023-08-25 02:30:18,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:30:18,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:30:18,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:30:18,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:30:18,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:30:18,938 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 404 out of 873 [2023-08-25 02:30:18,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 81 transitions, 311 flow. Second operand has 3 states, 3 states have (on average 406.3333333333333) internal successors, (1219), 3 states have internal predecessors, (1219), 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) [2023-08-25 02:30:18,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:30:18,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 404 of 873 [2023-08-25 02:30:18,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:30:19,151 INFO L124 PetriNetUnfolderBase]: 1281/2459 cut-off events. [2023-08-25 02:30:19,151 INFO L125 PetriNetUnfolderBase]: For 1056/1168 co-relation queries the response was YES. [2023-08-25 02:30:19,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5759 conditions, 2459 events. 1281/2459 cut-off events. For 1056/1168 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 15660 event pairs, 491 based on Foata normal form. 39/1851 useless extension candidates. Maximal degree in co-relation 5750. Up to 1232 conditions per place. [2023-08-25 02:30:19,160 INFO L140 encePairwiseOnDemand]: 866/873 looper letters, 52 selfloop transitions, 5 changer transitions 0/98 dead transitions. [2023-08-25 02:30:19,161 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 98 transitions, 486 flow [2023-08-25 02:30:19,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 02:30:19,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 02:30:19,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1261 transitions. [2023-08-25 02:30:19,163 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48148148148148145 [2023-08-25 02:30:19,163 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1261 transitions. [2023-08-25 02:30:19,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1261 transitions. [2023-08-25 02:30:19,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:30:19,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1261 transitions. [2023-08-25 02:30:19,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 420.3333333333333) internal successors, (1261), 3 states have internal predecessors, (1261), 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) [2023-08-25 02:30:19,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 873.0) internal successors, (3492), 4 states have internal predecessors, (3492), 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) [2023-08-25 02:30:19,169 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 873.0) internal successors, (3492), 4 states have internal predecessors, (3492), 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) [2023-08-25 02:30:19,169 INFO L175 Difference]: Start difference. First operand has 67 places, 81 transitions, 311 flow. Second operand 3 states and 1261 transitions. [2023-08-25 02:30:19,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 98 transitions, 486 flow [2023-08-25 02:30:19,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 98 transitions, 474 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 02:30:19,172 INFO L231 Difference]: Finished difference. Result has 70 places, 84 transitions, 337 flow [2023-08-25 02:30:19,172 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=873, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=337, PETRI_PLACES=70, PETRI_TRANSITIONS=84} [2023-08-25 02:30:19,173 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -6 predicate places. [2023-08-25 02:30:19,174 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 84 transitions, 337 flow [2023-08-25 02:30:19,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 406.3333333333333) internal successors, (1219), 3 states have internal predecessors, (1219), 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) [2023-08-25 02:30:19,185 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:30:19,185 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:30:19,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 02:30:19,185 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr2ASSERT_VIOLATIONASSERT (and 42 more)] === [2023-08-25 02:30:19,186 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:30:19,186 INFO L85 PathProgramCache]: Analyzing trace with hash -323883395, now seen corresponding path program 1 times [2023-08-25 02:30:19,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:30:19,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841238789] [2023-08-25 02:30:19,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:30:19,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:30:19,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:30:19,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 02:30:19,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:30:19,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841238789] [2023-08-25 02:30:19,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841238789] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:30:19,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:30:19,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 02:30:19,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74328546] [2023-08-25 02:30:19,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:30:19,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 02:30:19,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:30:19,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 02:30:19,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 02:30:19,391 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 399 out of 873 [2023-08-25 02:30:19,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 84 transitions, 337 flow. Second operand has 6 states, 6 states have (on average 400.6666666666667) internal successors, (2404), 6 states have internal predecessors, (2404), 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) [2023-08-25 02:30:19,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:30:19,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 399 of 873 [2023-08-25 02:30:19,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:30:19,975 INFO L124 PetriNetUnfolderBase]: 4000/6381 cut-off events. [2023-08-25 02:30:19,976 INFO L125 PetriNetUnfolderBase]: For 3378/3879 co-relation queries the response was YES. [2023-08-25 02:30:19,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15973 conditions, 6381 events. 4000/6381 cut-off events. For 3378/3879 co-relation queries the response was YES. Maximal size of possible extension queue 385. Compared 41384 event pairs, 1179 based on Foata normal form. 165/5666 useless extension candidates. Maximal degree in co-relation 15963. Up to 2614 conditions per place. [2023-08-25 02:30:20,008 INFO L140 encePairwiseOnDemand]: 868/873 looper letters, 190 selfloop transitions, 4 changer transitions 0/223 dead transitions. [2023-08-25 02:30:20,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 223 transitions, 1255 flow [2023-08-25 02:30:20,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 02:30:20,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 02:30:20,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2556 transitions. [2023-08-25 02:30:20,013 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4879725085910653 [2023-08-25 02:30:20,013 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2556 transitions. [2023-08-25 02:30:20,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2556 transitions. [2023-08-25 02:30:20,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:30:20,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2556 transitions. [2023-08-25 02:30:20,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 426.0) internal successors, (2556), 6 states have internal predecessors, (2556), 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) [2023-08-25 02:30:20,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 873.0) internal successors, (6111), 7 states have internal predecessors, (6111), 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) [2023-08-25 02:30:20,022 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 873.0) internal successors, (6111), 7 states have internal predecessors, (6111), 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) [2023-08-25 02:30:20,022 INFO L175 Difference]: Start difference. First operand has 70 places, 84 transitions, 337 flow. Second operand 6 states and 2556 transitions. [2023-08-25 02:30:20,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 223 transitions, 1255 flow [2023-08-25 02:30:20,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 223 transitions, 1213 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 02:30:20,029 INFO L231 Difference]: Finished difference. Result has 72 places, 83 transitions, 333 flow [2023-08-25 02:30:20,029 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=873, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=333, PETRI_PLACES=72, PETRI_TRANSITIONS=83} [2023-08-25 02:30:20,029 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -4 predicate places. [2023-08-25 02:30:20,029 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 83 transitions, 333 flow [2023-08-25 02:30:20,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 400.6666666666667) internal successors, (2404), 6 states have internal predecessors, (2404), 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) [2023-08-25 02:30:20,030 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:30:20,030 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:30:20,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 02:30:20,030 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread_usbErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr2ASSERT_VIOLATIONASSERT (and 42 more)] === [2023-08-25 02:30:20,030 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:30:20,031 INFO L85 PathProgramCache]: Analyzing trace with hash 68835331, now seen corresponding path program 1 times [2023-08-25 02:30:20,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:30:20,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984784931] [2023-08-25 02:30:20,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:30:20,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:30:20,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:30:20,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 02:30:20,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:30:20,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984784931] [2023-08-25 02:30:20,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984784931] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:30:20,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:30:20,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 02:30:20,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806663608] [2023-08-25 02:30:20,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:30:20,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:30:20,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:30:20,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:30:20,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:30:20,078 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 417 out of 873 [2023-08-25 02:30:20,079 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 83 transitions, 333 flow. Second operand has 3 states, 3 states have (on average 419.3333333333333) internal successors, (1258), 3 states have internal predecessors, (1258), 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) [2023-08-25 02:30:20,079 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:30:20,079 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 417 of 873 [2023-08-25 02:30:20,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:30:20,221 INFO L124 PetriNetUnfolderBase]: 1284/2479 cut-off events. [2023-08-25 02:30:20,221 INFO L125 PetriNetUnfolderBase]: For 1063/1187 co-relation queries the response was YES. [2023-08-25 02:30:20,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6118 conditions, 2479 events. 1284/2479 cut-off events. For 1063/1187 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 15944 event pairs, 313 based on Foata normal form. 47/2069 useless extension candidates. Maximal degree in co-relation 6108. Up to 1331 conditions per place. [2023-08-25 02:30:20,231 INFO L140 encePairwiseOnDemand]: 870/873 looper letters, 58 selfloop transitions, 2 changer transitions 1/101 dead transitions. [2023-08-25 02:30:20,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 101 transitions, 514 flow [2023-08-25 02:30:20,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 02:30:20,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 02:30:20,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1304 transitions. [2023-08-25 02:30:20,234 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4978999618174876 [2023-08-25 02:30:20,234 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1304 transitions. [2023-08-25 02:30:20,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1304 transitions. [2023-08-25 02:30:20,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:30:20,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1304 transitions. [2023-08-25 02:30:20,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 434.6666666666667) internal successors, (1304), 3 states have internal predecessors, (1304), 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) [2023-08-25 02:30:20,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 873.0) internal successors, (3492), 4 states have internal predecessors, (3492), 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) [2023-08-25 02:30:20,239 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 873.0) internal successors, (3492), 4 states have internal predecessors, (3492), 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) [2023-08-25 02:30:20,239 INFO L175 Difference]: Start difference. First operand has 72 places, 83 transitions, 333 flow. Second operand 3 states and 1304 transitions. [2023-08-25 02:30:20,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 101 transitions, 514 flow [2023-08-25 02:30:20,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 101 transitions, 507 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 02:30:20,241 INFO L231 Difference]: Finished difference. Result has 72 places, 84 transitions, 342 flow [2023-08-25 02:30:20,241 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=873, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=342, PETRI_PLACES=72, PETRI_TRANSITIONS=84} [2023-08-25 02:30:20,242 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -4 predicate places. [2023-08-25 02:30:20,242 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 84 transitions, 342 flow [2023-08-25 02:30:20,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 419.3333333333333) internal successors, (1258), 3 states have internal predecessors, (1258), 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) [2023-08-25 02:30:20,242 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:30:20,243 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:30:20,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 02:30:20,243 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread_usbErr10ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr2ASSERT_VIOLATIONASSERT (and 42 more)] === [2023-08-25 02:30:20,243 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:30:20,243 INFO L85 PathProgramCache]: Analyzing trace with hash -318050123, now seen corresponding path program 1 times [2023-08-25 02:30:20,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:30:20,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875825612] [2023-08-25 02:30:20,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:30:20,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:30:20,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:30:20,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 02:30:20,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:30:20,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875825612] [2023-08-25 02:30:20,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875825612] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:30:20,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:30:20,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 02:30:20,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240886305] [2023-08-25 02:30:20,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:30:20,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:30:20,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:30:20,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:30:20,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:30:20,281 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 417 out of 873 [2023-08-25 02:30:20,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 84 transitions, 342 flow. Second operand has 3 states, 3 states have (on average 420.0) internal successors, (1260), 3 states have internal predecessors, (1260), 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) [2023-08-25 02:30:20,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:30:20,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 417 of 873 [2023-08-25 02:30:20,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:30:20,373 INFO L124 PetriNetUnfolderBase]: 372/822 cut-off events. [2023-08-25 02:30:20,373 INFO L125 PetriNetUnfolderBase]: For 326/345 co-relation queries the response was YES. [2023-08-25 02:30:20,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1819 conditions, 822 events. 372/822 cut-off events. For 326/345 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4172 event pairs, 60 based on Foata normal form. 36/723 useless extension candidates. Maximal degree in co-relation 1808. Up to 457 conditions per place. [2023-08-25 02:30:20,377 INFO L140 encePairwiseOnDemand]: 870/873 looper letters, 52 selfloop transitions, 2 changer transitions 2/78 dead transitions. [2023-08-25 02:30:20,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 78 transitions, 380 flow [2023-08-25 02:30:20,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 02:30:20,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 02:30:20,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1308 transitions. [2023-08-25 02:30:20,381 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49942726231386025 [2023-08-25 02:30:20,381 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1308 transitions. [2023-08-25 02:30:20,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1308 transitions. [2023-08-25 02:30:20,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:30:20,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1308 transitions. [2023-08-25 02:30:20,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 436.0) internal successors, (1308), 3 states have internal predecessors, (1308), 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) [2023-08-25 02:30:20,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 873.0) internal successors, (3492), 4 states have internal predecessors, (3492), 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) [2023-08-25 02:30:20,386 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 873.0) internal successors, (3492), 4 states have internal predecessors, (3492), 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) [2023-08-25 02:30:20,386 INFO L175 Difference]: Start difference. First operand has 72 places, 84 transitions, 342 flow. Second operand 3 states and 1308 transitions. [2023-08-25 02:30:20,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 78 transitions, 380 flow [2023-08-25 02:30:20,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 78 transitions, 311 flow, removed 15 selfloop flow, removed 8 redundant places. [2023-08-25 02:30:20,413 INFO L231 Difference]: Finished difference. Result has 62 places, 56 transitions, 159 flow [2023-08-25 02:30:20,414 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=873, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=159, PETRI_PLACES=62, PETRI_TRANSITIONS=56} [2023-08-25 02:30:20,414 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -14 predicate places. [2023-08-25 02:30:20,414 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 56 transitions, 159 flow [2023-08-25 02:30:20,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 420.0) internal successors, (1260), 3 states have internal predecessors, (1260), 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) [2023-08-25 02:30:20,415 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:30:20,415 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:30:20,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 02:30:20,415 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread_ath9kErr2ASSERT_VIOLATIONASSERT === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr2ASSERT_VIOLATIONASSERT (and 42 more)] === [2023-08-25 02:30:20,415 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:30:20,415 INFO L85 PathProgramCache]: Analyzing trace with hash -808064374, now seen corresponding path program 1 times [2023-08-25 02:30:20,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:30:20,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813113850] [2023-08-25 02:30:20,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:30:20,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:30:20,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:30:20,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 02:30:20,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:30:20,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813113850] [2023-08-25 02:30:20,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813113850] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:30:20,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:30:20,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 02:30:20,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103304059] [2023-08-25 02:30:20,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:30:20,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:30:20,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:30:20,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:30:20,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:30:20,490 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 404 out of 873 [2023-08-25 02:30:20,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 56 transitions, 159 flow. Second operand has 3 states, 3 states have (on average 406.6666666666667) internal successors, (1220), 3 states have internal predecessors, (1220), 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) [2023-08-25 02:30:20,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:30:20,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 404 of 873 [2023-08-25 02:30:20,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:30:20,568 INFO L124 PetriNetUnfolderBase]: 449/916 cut-off events. [2023-08-25 02:30:20,568 INFO L125 PetriNetUnfolderBase]: For 238/245 co-relation queries the response was YES. [2023-08-25 02:30:20,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1865 conditions, 916 events. 449/916 cut-off events. For 238/245 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4322 event pairs, 130 based on Foata normal form. 0/701 useless extension candidates. Maximal degree in co-relation 1856. Up to 364 conditions per place. [2023-08-25 02:30:20,571 INFO L140 encePairwiseOnDemand]: 870/873 looper letters, 46 selfloop transitions, 2 changer transitions 0/70 dead transitions. [2023-08-25 02:30:20,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 70 transitions, 299 flow [2023-08-25 02:30:20,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 02:30:20,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 02:30:20,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1258 transitions. [2023-08-25 02:30:20,573 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48033600610920196 [2023-08-25 02:30:20,573 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1258 transitions. [2023-08-25 02:30:20,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1258 transitions. [2023-08-25 02:30:20,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:30:20,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1258 transitions. [2023-08-25 02:30:20,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 419.3333333333333) internal successors, (1258), 3 states have internal predecessors, (1258), 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) [2023-08-25 02:30:20,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 873.0) internal successors, (3492), 4 states have internal predecessors, (3492), 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) [2023-08-25 02:30:20,578 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 873.0) internal successors, (3492), 4 states have internal predecessors, (3492), 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) [2023-08-25 02:30:20,578 INFO L175 Difference]: Start difference. First operand has 62 places, 56 transitions, 159 flow. Second operand 3 states and 1258 transitions. [2023-08-25 02:30:20,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 70 transitions, 299 flow [2023-08-25 02:30:20,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 70 transitions, 290 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 02:30:20,579 INFO L231 Difference]: Finished difference. Result has 62 places, 57 transitions, 168 flow [2023-08-25 02:30:20,580 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=873, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=62, PETRI_TRANSITIONS=57} [2023-08-25 02:30:20,580 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -14 predicate places. [2023-08-25 02:30:20,580 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 57 transitions, 168 flow [2023-08-25 02:30:20,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 406.6666666666667) internal successors, (1220), 3 states have internal predecessors, (1220), 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) [2023-08-25 02:30:20,580 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:30:20,581 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:30:20,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 02:30:20,581 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread_usbErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr2ASSERT_VIOLATIONASSERT (and 42 more)] === [2023-08-25 02:30:20,581 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:30:20,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1874468719, now seen corresponding path program 1 times [2023-08-25 02:30:20,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:30:20,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477276573] [2023-08-25 02:30:20,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:30:20,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:30:20,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:30:20,812 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 02:30:20,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:30:20,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477276573] [2023-08-25 02:30:20,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477276573] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:30:20,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:30:20,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 02:30:20,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953096571] [2023-08-25 02:30:20,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:30:20,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 02:30:20,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:30:20,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 02:30:20,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 02:30:20,815 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 397 out of 873 [2023-08-25 02:30:20,816 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 57 transitions, 168 flow. Second operand has 6 states, 6 states have (on average 399.1666666666667) internal successors, (2395), 6 states have internal predecessors, (2395), 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) [2023-08-25 02:30:20,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:30:20,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 397 of 873 [2023-08-25 02:30:20,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:30:21,204 INFO L124 PetriNetUnfolderBase]: 2743/4130 cut-off events. [2023-08-25 02:30:21,205 INFO L125 PetriNetUnfolderBase]: For 1424/1424 co-relation queries the response was YES. [2023-08-25 02:30:21,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9627 conditions, 4130 events. 2743/4130 cut-off events. For 1424/1424 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 19949 event pairs, 779 based on Foata normal form. 0/3494 useless extension candidates. Maximal degree in co-relation 9618. Up to 2255 conditions per place. [2023-08-25 02:30:21,216 INFO L140 encePairwiseOnDemand]: 868/873 looper letters, 109 selfloop transitions, 4 changer transitions 5/130 dead transitions. [2023-08-25 02:30:21,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 130 transitions, 592 flow [2023-08-25 02:30:21,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 02:30:21,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 02:30:21,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2495 transitions. [2023-08-25 02:30:21,221 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47632684230622374 [2023-08-25 02:30:21,221 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2495 transitions. [2023-08-25 02:30:21,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2495 transitions. [2023-08-25 02:30:21,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:30:21,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2495 transitions. [2023-08-25 02:30:21,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 415.8333333333333) internal successors, (2495), 6 states have internal predecessors, (2495), 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) [2023-08-25 02:30:21,229 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 873.0) internal successors, (6111), 7 states have internal predecessors, (6111), 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) [2023-08-25 02:30:21,230 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 873.0) internal successors, (6111), 7 states have internal predecessors, (6111), 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) [2023-08-25 02:30:21,230 INFO L175 Difference]: Start difference. First operand has 62 places, 57 transitions, 168 flow. Second operand 6 states and 2495 transitions. [2023-08-25 02:30:21,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 130 transitions, 592 flow [2023-08-25 02:30:21,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 130 transitions, 580 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 02:30:21,233 INFO L231 Difference]: Finished difference. Result has 68 places, 59 transitions, 191 flow [2023-08-25 02:30:21,233 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=873, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=191, PETRI_PLACES=68, PETRI_TRANSITIONS=59} [2023-08-25 02:30:21,234 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -8 predicate places. [2023-08-25 02:30:21,234 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 59 transitions, 191 flow [2023-08-25 02:30:21,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 399.1666666666667) internal successors, (2395), 6 states have internal predecessors, (2395), 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) [2023-08-25 02:30:21,234 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:30:21,234 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:30:21,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 02:30:21,235 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr2ASSERT_VIOLATIONASSERT (and 42 more)] === [2023-08-25 02:30:21,235 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:30:21,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1296904785, now seen corresponding path program 1 times [2023-08-25 02:30:21,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:30:21,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252756320] [2023-08-25 02:30:21,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:30:21,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:30:21,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:30:21,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 02:30:21,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:30:21,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252756320] [2023-08-25 02:30:21,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252756320] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:30:21,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:30:21,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 02:30:21,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308207106] [2023-08-25 02:30:21,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:30:21,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:30:21,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:30:21,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:30:21,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:30:21,304 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 873 [2023-08-25 02:30:21,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 59 transitions, 191 flow. Second operand has 3 states, 3 states have (on average 375.0) internal successors, (1125), 3 states have internal predecessors, (1125), 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) [2023-08-25 02:30:21,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:30:21,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 873 [2023-08-25 02:30:21,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:30:21,443 INFO L124 PetriNetUnfolderBase]: 704/1318 cut-off events. [2023-08-25 02:30:21,443 INFO L125 PetriNetUnfolderBase]: For 347/358 co-relation queries the response was YES. [2023-08-25 02:30:21,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3096 conditions, 1318 events. 704/1318 cut-off events. For 347/358 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 5863 event pairs, 470 based on Foata normal form. 0/1213 useless extension candidates. Maximal degree in co-relation 3084. Up to 1104 conditions per place. [2023-08-25 02:30:21,451 INFO L140 encePairwiseOnDemand]: 870/873 looper letters, 41 selfloop transitions, 2 changer transitions 0/58 dead transitions. [2023-08-25 02:30:21,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 58 transitions, 275 flow [2023-08-25 02:30:21,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 02:30:21,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 02:30:21,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1149 transitions. [2023-08-25 02:30:21,454 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43871706758304696 [2023-08-25 02:30:21,454 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1149 transitions. [2023-08-25 02:30:21,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1149 transitions. [2023-08-25 02:30:21,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:30:21,455 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1149 transitions. [2023-08-25 02:30:21,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 383.0) internal successors, (1149), 3 states have internal predecessors, (1149), 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) [2023-08-25 02:30:21,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 873.0) internal successors, (3492), 4 states have internal predecessors, (3492), 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) [2023-08-25 02:30:21,461 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 873.0) internal successors, (3492), 4 states have internal predecessors, (3492), 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) [2023-08-25 02:30:21,461 INFO L175 Difference]: Start difference. First operand has 68 places, 59 transitions, 191 flow. Second operand 3 states and 1149 transitions. [2023-08-25 02:30:21,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 58 transitions, 275 flow [2023-08-25 02:30:21,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 58 transitions, 275 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 02:30:21,463 INFO L231 Difference]: Finished difference. Result has 68 places, 58 transitions, 193 flow [2023-08-25 02:30:21,464 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=873, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=193, PETRI_PLACES=68, PETRI_TRANSITIONS=58} [2023-08-25 02:30:21,464 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -8 predicate places. [2023-08-25 02:30:21,464 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 58 transitions, 193 flow [2023-08-25 02:30:21,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 375.0) internal successors, (1125), 3 states have internal predecessors, (1125), 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) [2023-08-25 02:30:21,465 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 02:30:21,465 INFO L208 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] [2023-08-25 02:30:21,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 02:30:21,465 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONASSERT === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr2ASSERT_VIOLATIONASSERT (and 42 more)] === [2023-08-25 02:30:21,465 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 02:30:21,465 INFO L85 PathProgramCache]: Analyzing trace with hash -831264869, now seen corresponding path program 1 times [2023-08-25 02:30:21,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 02:30:21,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649099754] [2023-08-25 02:30:21,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 02:30:21,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 02:30:21,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 02:30:21,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 02:30:21,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 02:30:21,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649099754] [2023-08-25 02:30:21,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649099754] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 02:30:21,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 02:30:21,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 02:30:21,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766463707] [2023-08-25 02:30:21,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 02:30:21,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 02:30:21,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 02:30:21,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 02:30:21,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 02:30:21,525 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 404 out of 873 [2023-08-25 02:30:21,526 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 58 transitions, 193 flow. Second operand has 3 states, 3 states have (on average 408.3333333333333) internal successors, (1225), 3 states have internal predecessors, (1225), 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) [2023-08-25 02:30:21,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 02:30:21,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 404 of 873 [2023-08-25 02:30:21,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 02:30:21,600 INFO L124 PetriNetUnfolderBase]: 538/1052 cut-off events. [2023-08-25 02:30:21,600 INFO L125 PetriNetUnfolderBase]: For 237/244 co-relation queries the response was YES. [2023-08-25 02:30:21,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2447 conditions, 1052 events. 538/1052 cut-off events. For 237/244 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4859 event pairs, 322 based on Foata normal form. 4/939 useless extension candidates. Maximal degree in co-relation 2434. Up to 802 conditions per place. [2023-08-25 02:30:21,602 INFO L140 encePairwiseOnDemand]: 871/873 looper letters, 0 selfloop transitions, 0 changer transitions 57/57 dead transitions. [2023-08-25 02:30:21,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 57 transitions, 259 flow [2023-08-25 02:30:21,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 02:30:21,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 02:30:21,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1242 transitions. [2023-08-25 02:30:21,605 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4742268041237113 [2023-08-25 02:30:21,605 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1242 transitions. [2023-08-25 02:30:21,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1242 transitions. [2023-08-25 02:30:21,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 02:30:21,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1242 transitions. [2023-08-25 02:30:21,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 414.0) internal successors, (1242), 3 states have internal predecessors, (1242), 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) [2023-08-25 02:30:21,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 873.0) internal successors, (3492), 4 states have internal predecessors, (3492), 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) [2023-08-25 02:30:21,609 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 873.0) internal successors, (3492), 4 states have internal predecessors, (3492), 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) [2023-08-25 02:30:21,610 INFO L175 Difference]: Start difference. First operand has 68 places, 58 transitions, 193 flow. Second operand 3 states and 1242 transitions. [2023-08-25 02:30:21,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 57 transitions, 259 flow [2023-08-25 02:30:21,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 57 transitions, 255 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 02:30:21,611 INFO L231 Difference]: Finished difference. Result has 67 places, 0 transitions, 0 flow [2023-08-25 02:30:21,611 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=873, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=67, PETRI_TRANSITIONS=0} [2023-08-25 02:30:21,611 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, -9 predicate places. [2023-08-25 02:30:21,612 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 0 transitions, 0 flow [2023-08-25 02:30:21,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 408.3333333333333) internal successors, (1225), 3 states have internal predecessors, (1225), 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) [2023-08-25 02:30:21,614 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE (44 of 45 remaining) [2023-08-25 02:30:21,614 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (43 of 45 remaining) [2023-08-25 02:30:21,614 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr2ASSERT_VIOLATIONASSERT (42 of 45 remaining) [2023-08-25 02:30:21,614 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (41 of 45 remaining) [2023-08-25 02:30:21,614 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (40 of 45 remaining) [2023-08-25 02:30:21,614 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (39 of 45 remaining) [2023-08-25 02:30:21,614 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (38 of 45 remaining) [2023-08-25 02:30:21,614 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (37 of 45 remaining) [2023-08-25 02:30:21,614 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONASSERT (36 of 45 remaining) [2023-08-25 02:30:21,615 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (35 of 45 remaining) [2023-08-25 02:30:21,615 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (34 of 45 remaining) [2023-08-25 02:30:21,615 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (33 of 45 remaining) [2023-08-25 02:30:21,615 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONASSERT (32 of 45 remaining) [2023-08-25 02:30:21,615 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 45 remaining) [2023-08-25 02:30:21,615 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONDATA_RACE (30 of 45 remaining) [2023-08-25 02:30:21,615 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr10ASSERT_VIOLATIONDATA_RACE (29 of 45 remaining) [2023-08-25 02:30:21,615 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONDATA_RACE (28 of 45 remaining) [2023-08-25 02:30:21,615 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr11ASSERT_VIOLATIONDATA_RACE (27 of 45 remaining) [2023-08-25 02:30:21,615 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONDATA_RACE (26 of 45 remaining) [2023-08-25 02:30:21,615 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr9ASSERT_VIOLATIONDATA_RACE (25 of 45 remaining) [2023-08-25 02:30:21,615 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr12ASSERT_VIOLATIONASSERT (24 of 45 remaining) [2023-08-25 02:30:21,615 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4ASSERT_VIOLATIONDATA_RACE (23 of 45 remaining) [2023-08-25 02:30:21,616 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5ASSERT_VIOLATIONDATA_RACE (22 of 45 remaining) [2023-08-25 02:30:21,616 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONDATA_RACE (21 of 45 remaining) [2023-08-25 02:30:21,616 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONDATA_RACE (20 of 45 remaining) [2023-08-25 02:30:21,616 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONDATA_RACE (19 of 45 remaining) [2023-08-25 02:30:21,616 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr8ASSERT_VIOLATIONASSERT (18 of 45 remaining) [2023-08-25 02:30:21,616 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 45 remaining) [2023-08-25 02:30:21,616 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE (16 of 45 remaining) [2023-08-25 02:30:21,616 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (15 of 45 remaining) [2023-08-25 02:30:21,616 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr2ASSERT_VIOLATIONASSERT (14 of 45 remaining) [2023-08-25 02:30:21,616 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONDATA_RACE (13 of 45 remaining) [2023-08-25 02:30:21,616 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr10ASSERT_VIOLATIONDATA_RACE (12 of 45 remaining) [2023-08-25 02:30:21,616 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONDATA_RACE (11 of 45 remaining) [2023-08-25 02:30:21,616 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr11ASSERT_VIOLATIONDATA_RACE (10 of 45 remaining) [2023-08-25 02:30:21,616 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONDATA_RACE (9 of 45 remaining) [2023-08-25 02:30:21,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr9ASSERT_VIOLATIONDATA_RACE (8 of 45 remaining) [2023-08-25 02:30:21,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr12ASSERT_VIOLATIONASSERT (7 of 45 remaining) [2023-08-25 02:30:21,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4ASSERT_VIOLATIONDATA_RACE (6 of 45 remaining) [2023-08-25 02:30:21,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5ASSERT_VIOLATIONDATA_RACE (5 of 45 remaining) [2023-08-25 02:30:21,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONDATA_RACE (4 of 45 remaining) [2023-08-25 02:30:21,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONDATA_RACE (3 of 45 remaining) [2023-08-25 02:30:21,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONDATA_RACE (2 of 45 remaining) [2023-08-25 02:30:21,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr8ASSERT_VIOLATIONASSERT (1 of 45 remaining) [2023-08-25 02:30:21,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 45 remaining) [2023-08-25 02:30:21,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-25 02:30:21,617 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 02:30:21,620 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 02:30:21,621 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 02:30:21,622 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 02:30:21 BasicIcfg [2023-08-25 02:30:21,622 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 02:30:21,623 INFO L158 Benchmark]: Toolchain (without parser) took 12737.43ms. Allocated memory was 354.4MB in the beginning and 652.2MB in the end (delta: 297.8MB). Free memory was 327.0MB in the beginning and 378.4MB in the end (delta: -51.4MB). Peak memory consumption was 247.3MB. Max. memory is 16.0GB. [2023-08-25 02:30:21,623 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 354.4MB. Free memory was 332.4MB in the beginning and 332.2MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 02:30:21,623 INFO L158 Benchmark]: CACSL2BoogieTranslator took 723.62ms. Allocated memory is still 354.4MB. Free memory was 327.0MB in the beginning and 269.5MB in the end (delta: 57.5MB). Peak memory consumption was 56.6MB. Max. memory is 16.0GB. [2023-08-25 02:30:21,623 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.33ms. Allocated memory is still 354.4MB. Free memory was 269.5MB in the beginning and 265.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-25 02:30:21,623 INFO L158 Benchmark]: Boogie Preprocessor took 68.05ms. Allocated memory is still 354.4MB. Free memory was 265.3MB in the beginning and 261.9MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-25 02:30:21,623 INFO L158 Benchmark]: RCFGBuilder took 636.77ms. Allocated memory was 354.4MB in the beginning and 425.7MB in the end (delta: 71.3MB). Free memory was 261.9MB in the beginning and 394.9MB in the end (delta: -132.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. [2023-08-25 02:30:21,624 INFO L158 Benchmark]: TraceAbstraction took 11228.97ms. Allocated memory was 425.7MB in the beginning and 652.2MB in the end (delta: 226.5MB). Free memory was 394.9MB in the beginning and 378.4MB in the end (delta: 16.5MB). Peak memory consumption was 243.0MB. Max. memory is 16.0GB. [2023-08-25 02:30:21,624 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 354.4MB. Free memory was 332.4MB in the beginning and 332.2MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 723.62ms. Allocated memory is still 354.4MB. Free memory was 327.0MB in the beginning and 269.5MB in the end (delta: 57.5MB). Peak memory consumption was 56.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 75.33ms. Allocated memory is still 354.4MB. Free memory was 269.5MB in the beginning and 265.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 68.05ms. Allocated memory is still 354.4MB. Free memory was 265.3MB in the beginning and 261.9MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * RCFGBuilder took 636.77ms. Allocated memory was 354.4MB in the beginning and 425.7MB in the end (delta: 71.3MB). Free memory was 261.9MB in the beginning and 394.9MB in the end (delta: -132.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. * TraceAbstraction took 11228.97ms. Allocated memory was 425.7MB in the beginning and 652.2MB in the end (delta: 226.5MB). Free memory was 394.9MB in the beginning and 378.4MB in the end (delta: 16.5MB). Peak memory consumption was 243.0MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 237]: Unsoundness Warning unspecified type, defaulting to int C: short [237] - GenericResultAtLocation [Line: 237]: Unsoundness Warning unspecified type, defaulting to int C: short [237] - GenericResultAtLocation [Line: 729]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [729] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.9s, 296 PlacesBefore, 76 PlacesAfterwards, 319 TransitionsBefore, 82 TransitionsAfterwards, 18942 CoEnabledTransitionPairs, 11 FixpointIterations, 114 TrivialSequentialCompositions, 226 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 51 ConcurrentYvCompositions, 17 ChoiceCompositions, 414 TotalNumberOfCompositions, 60318 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 26324, independent: 25352, independent conditional: 0, independent unconditional: 25352, dependent: 972, dependent conditional: 0, dependent unconditional: 972, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 11207, independent: 11110, independent conditional: 0, independent unconditional: 11110, dependent: 97, dependent conditional: 0, dependent unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 26324, independent: 14242, independent conditional: 0, independent unconditional: 14242, dependent: 875, dependent conditional: 0, dependent unconditional: 875, unknown: 11207, unknown conditional: 0, unknown unconditional: 11207] , Statistics on independence cache: Total cache size (in pairs): 539, Positive cache size: 496, Positive conditional cache size: 0, Positive unconditional cache size: 496, Negative cache size: 43, Negative conditional cache size: 0, Negative unconditional cache size: 43, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1691]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 1777]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1778]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1691]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 1783]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1784]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1691]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 1790]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1792]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1793]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1691]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 1743]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1771]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1748]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1772]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1756]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1764]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1691]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 1725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1758]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1752]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1759]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1760]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1691]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 462 locations, 45 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: 11.1s, OverallIterations: 15, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 381 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 381 mSDsluCounter, 61 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 60 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1483 IncrementalHoareTripleChecker+Invalid, 1543 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 60 mSolverCounterUnsat, 61 mSDtfsCounter, 1483 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=342occurred in iteration=10, InterpolantAutomatonStates: 50, 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, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 162 NumberOfCodeBlocks, 162 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 359 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 4/4 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 - AllSpecificationsHoldResult: All specifications hold 26 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 02:30:21,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...