/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true -i ../../../trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-a20a710-m [2023-12-09 14:57:48,136 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-09 14:57:48,173 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-NoLbe.epf [2023-12-09 14:57:48,189 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-09 14:57:48,190 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-09 14:57:48,190 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-09 14:57:48,191 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-09 14:57:48,191 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-09 14:57:48,191 INFO L153 SettingsManager]: * Use SBE=true [2023-12-09 14:57:48,191 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-09 14:57:48,192 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-09 14:57:48,192 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-09 14:57:48,192 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-09 14:57:48,192 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-09 14:57:48,192 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-09 14:57:48,193 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-09 14:57:48,193 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-09 14:57:48,193 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-09 14:57:48,193 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-09 14:57:48,193 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-09 14:57:48,194 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-09 14:57:48,194 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-09 14:57:48,194 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-09 14:57:48,194 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-09 14:57:48,194 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-09 14:57:48,195 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 14:57:48,195 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-09 14:57:48,195 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-09 14:57:48,195 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-09 14:57:48,195 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-09 14:57:48,195 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-09 14:57:48,196 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-09 14:57:48,196 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-09 14:57:48,196 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true [2023-12-09 14:57:48,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-09 14:57:48,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-09 14:57:48,385 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-09 14:57:48,386 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-09 14:57:48,386 INFO L274 PluginConnector]: CDTParser initialized [2023-12-09 14:57:48,387 INFO L431 ainManager$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 [2023-12-09 14:57:49,413 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-09 14:57:49,642 INFO L384 CDTParser]: Found 1 translation units. [2023-12-09 14:57:49,642 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i [2023-12-09 14:57:49,664 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8c7e1d97/0b1012d85f1e4e57a2c52c4599806c84/FLAG25a7829cb [2023-12-09 14:57:49,678 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8c7e1d97/0b1012d85f1e4e57a2c52c4599806c84 [2023-12-09 14:57:49,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-09 14:57:49,681 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-09 14:57:49,682 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-09 14:57:49,682 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-09 14:57:49,686 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-09 14:57:49,686 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:57:49" (1/1) ... [2023-12-09 14:57:49,687 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71445059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:49, skipping insertion in model container [2023-12-09 14:57:49,688 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:57:49" (1/1) ... [2023-12-09 14:57:49,737 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-09 14:57:50,320 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2023-12-09 14:57:50,384 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 14:57:50,397 INFO L202 MainTranslator]: Completed pre-run [2023-12-09 14:57:50,437 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2023-12-09 14:57:50,447 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-09 14:57:50,563 INFO L206 MainTranslator]: Completed translation [2023-12-09 14:57:50,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:50 WrapperNode [2023-12-09 14:57:50,566 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-09 14:57:50,567 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-09 14:57:50,567 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-09 14:57:50,567 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-09 14:57:50,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:50" (1/1) ... [2023-12-09 14:57:50,601 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:50" (1/1) ... [2023-12-09 14:57:50,633 INFO L138 Inliner]: procedures = 487, calls = 44, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 207 [2023-12-09 14:57:50,633 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-09 14:57:50,634 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-09 14:57:50,634 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-09 14:57:50,634 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-09 14:57:50,641 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:50" (1/1) ... [2023-12-09 14:57:50,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:50" (1/1) ... [2023-12-09 14:57:50,657 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:50" (1/1) ... [2023-12-09 14:57:50,657 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:50" (1/1) ... [2023-12-09 14:57:50,664 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:50" (1/1) ... [2023-12-09 14:57:50,670 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:50" (1/1) ... [2023-12-09 14:57:50,673 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:50" (1/1) ... [2023-12-09 14:57:50,675 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:50" (1/1) ... [2023-12-09 14:57:50,679 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-09 14:57:50,679 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-09 14:57:50,679 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-09 14:57:50,679 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-09 14:57:50,680 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:50" (1/1) ... [2023-12-09 14:57:50,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-09 14:57:50,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-09 14:57:50,742 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) [2023-12-09 14:57:50,774 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 [2023-12-09 14:57:50,794 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2023-12-09 14:57:50,794 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2023-12-09 14:57:50,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-09 14:57:50,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-09 14:57:50,794 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2023-12-09 14:57:50,794 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2023-12-09 14:57:50,794 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-12-09 14:57:50,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-09 14:57:50,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-09 14:57:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-09 14:57:50,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-09 14:57:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-09 14:57:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-12-09 14:57:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-09 14:57:50,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-09 14:57:50,796 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-09 14:57:51,047 INFO L241 CfgBuilder]: Building ICFG [2023-12-09 14:57:51,049 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-09 14:57:51,252 INFO L282 CfgBuilder]: Performing block encoding [2023-12-09 14:57:51,264 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-09 14:57:51,265 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-09 14:57:51,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:57:51 BoogieIcfgContainer [2023-12-09 14:57:51,266 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-09 14:57:51,267 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-09 14:57:51,267 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-09 14:57:51,269 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-09 14:57:51,269 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:57:49" (1/3) ... [2023-12-09 14:57:51,270 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@af56256 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:57:51, skipping insertion in model container [2023-12-09 14:57:51,270 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:57:50" (2/3) ... [2023-12-09 14:57:51,270 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@af56256 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:57:51, skipping insertion in model container [2023-12-09 14:57:51,270 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:57:51" (3/3) ... [2023-12-09 14:57:51,271 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2023-12-09 14:57:51,284 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-09 14:57:51,284 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-12-09 14:57:51,284 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-09 14:57:51,332 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2023-12-09 14:57:51,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 291 places, 321 transitions, 669 flow [2023-12-09 14:57:51,416 INFO L124 PetriNetUnfolderBase]: 33/331 cut-off events. [2023-12-09 14:57:51,416 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-12-09 14:57:51,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 342 conditions, 331 events. 33/331 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 828 event pairs, 0 based on Foata normal form. 0/285 useless extension candidates. Maximal degree in co-relation 222. Up to 11 conditions per place. [2023-12-09 14:57:51,422 INFO L82 GeneralOperation]: Start removeDead. Operand has 291 places, 321 transitions, 669 flow [2023-12-09 14:57:51,427 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 204 places, 219 transitions, 454 flow [2023-12-09 14:57:51,433 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-09 14:57:51,438 INFO L362 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@70677d2a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-09 14:57:51,438 INFO L363 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-12-09 14:57:51,443 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-12-09 14:57:51,443 INFO L124 PetriNetUnfolderBase]: 0/33 cut-off events. [2023-12-09 14:57:51,443 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-12-09 14:57:51,443 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:51,444 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:51,444 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-09 14:57:51,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:51,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1513081017, now seen corresponding path program 1 times [2023-12-09 14:57:51,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:51,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415904886] [2023-12-09 14:57:51,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:51,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:51,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:51,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:57:51,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:51,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415904886] [2023-12-09 14:57:51,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415904886] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:51,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:51,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 14:57:51,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244978360] [2023-12-09 14:57:51,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:51,879 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 14:57:51,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:51,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 14:57:51,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-09 14:57:51,907 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 321 [2023-12-09 14:57:51,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 219 transitions, 454 flow. Second operand has 5 states, 5 states have (on average 255.2) internal successors, (1276), 5 states have internal predecessors, (1276), 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) [2023-12-09 14:57:51,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:51,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 321 [2023-12-09 14:57:51,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:52,142 INFO L124 PetriNetUnfolderBase]: 103/788 cut-off events. [2023-12-09 14:57:52,143 INFO L125 PetriNetUnfolderBase]: For 27/32 co-relation queries the response was YES. [2023-12-09 14:57:52,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 961 conditions, 788 events. 103/788 cut-off events. For 27/32 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3379 event pairs, 27 based on Foata normal form. 55/752 useless extension candidates. Maximal degree in co-relation 624. Up to 131 conditions per place. [2023-12-09 14:57:52,153 INFO L140 encePairwiseOnDemand]: 301/321 looper letters, 34 selfloop transitions, 11 changer transitions 0/214 dead transitions. [2023-12-09 14:57:52,153 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 214 transitions, 543 flow [2023-12-09 14:57:52,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-09 14:57:52,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-12-09 14:57:52,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1585 transitions. [2023-12-09 14:57:52,171 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8229491173416407 [2023-12-09 14:57:52,172 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1585 transitions. [2023-12-09 14:57:52,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1585 transitions. [2023-12-09 14:57:52,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:52,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1585 transitions. [2023-12-09 14:57:52,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 264.1666666666667) internal successors, (1585), 6 states have internal predecessors, (1585), 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) [2023-12-09 14:57:52,190 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 321.0) internal successors, (2247), 7 states have internal predecessors, (2247), 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) [2023-12-09 14:57:52,191 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 321.0) internal successors, (2247), 7 states have internal predecessors, (2247), 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) [2023-12-09 14:57:52,196 INFO L308 CegarLoopForPetriNet]: 204 programPoint places, -2 predicate places. [2023-12-09 14:57:52,196 INFO L500 AbstractCegarLoop]: Abstraction has has 202 places, 214 transitions, 543 flow [2023-12-09 14:57:52,197 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 255.2) internal successors, (1276), 5 states have internal predecessors, (1276), 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) [2023-12-09 14:57:52,197 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:52,197 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:52,197 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-09 14:57:52,198 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-09 14:57:52,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:52,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1765621201, now seen corresponding path program 1 times [2023-12-09 14:57:52,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:52,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694005435] [2023-12-09 14:57:52,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:52,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:52,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:52,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:57:52,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:52,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694005435] [2023-12-09 14:57:52,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694005435] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:52,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:52,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 14:57:52,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258738481] [2023-12-09 14:57:52,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:52,368 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 14:57:52,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:52,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 14:57:52,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-09 14:57:52,370 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 321 [2023-12-09 14:57:52,372 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 214 transitions, 543 flow. Second operand has 5 states, 5 states have (on average 256.6) internal successors, (1283), 5 states have internal predecessors, (1283), 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) [2023-12-09 14:57:52,372 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:52,372 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 321 [2023-12-09 14:57:52,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:52,557 INFO L124 PetriNetUnfolderBase]: 103/786 cut-off events. [2023-12-09 14:57:52,558 INFO L125 PetriNetUnfolderBase]: For 103/166 co-relation queries the response was YES. [2023-12-09 14:57:52,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1111 conditions, 786 events. 103/786 cut-off events. For 103/166 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3369 event pairs, 27 based on Foata normal form. 6/701 useless extension candidates. Maximal degree in co-relation 741. Up to 137 conditions per place. [2023-12-09 14:57:52,562 INFO L140 encePairwiseOnDemand]: 313/321 looper letters, 36 selfloop transitions, 4 changer transitions 6/212 dead transitions. [2023-12-09 14:57:52,562 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 212 transitions, 625 flow [2023-12-09 14:57:52,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-09 14:57:52,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-12-09 14:57:52,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1562 transitions. [2023-12-09 14:57:52,565 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8110072689511942 [2023-12-09 14:57:52,565 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1562 transitions. [2023-12-09 14:57:52,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1562 transitions. [2023-12-09 14:57:52,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:52,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1562 transitions. [2023-12-09 14:57:52,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 260.3333333333333) internal successors, (1562), 6 states have internal predecessors, (1562), 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) [2023-12-09 14:57:52,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 321.0) internal successors, (2247), 7 states have internal predecessors, (2247), 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) [2023-12-09 14:57:52,571 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 321.0) internal successors, (2247), 7 states have internal predecessors, (2247), 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) [2023-12-09 14:57:52,572 INFO L308 CegarLoopForPetriNet]: 204 programPoint places, 1 predicate places. [2023-12-09 14:57:52,572 INFO L500 AbstractCegarLoop]: Abstraction has has 205 places, 212 transitions, 625 flow [2023-12-09 14:57:52,573 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 256.6) internal successors, (1283), 5 states have internal predecessors, (1283), 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) [2023-12-09 14:57:52,573 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:52,573 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:52,574 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-09 14:57:52,574 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-09 14:57:52,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:52,574 INFO L85 PathProgramCache]: Analyzing trace with hash -700556779, now seen corresponding path program 1 times [2023-12-09 14:57:52,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:52,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882406234] [2023-12-09 14:57:52,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:52,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:52,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:52,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:57:52,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:52,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882406234] [2023-12-09 14:57:52,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882406234] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:52,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:52,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 14:57:52,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725358824] [2023-12-09 14:57:52,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:52,704 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 14:57:52,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:52,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 14:57:52,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-09 14:57:52,707 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 321 [2023-12-09 14:57:52,709 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 212 transitions, 625 flow. Second operand has 5 states, 5 states have (on average 261.8) internal successors, (1309), 5 states have internal predecessors, (1309), 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) [2023-12-09 14:57:52,711 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:52,711 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 321 [2023-12-09 14:57:52,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:52,964 INFO L124 PetriNetUnfolderBase]: 189/1074 cut-off events. [2023-12-09 14:57:52,964 INFO L125 PetriNetUnfolderBase]: For 484/653 co-relation queries the response was YES. [2023-12-09 14:57:52,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1872 conditions, 1074 events. 189/1074 cut-off events. For 484/653 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 5541 event pairs, 33 based on Foata normal form. 1/962 useless extension candidates. Maximal degree in co-relation 1470. Up to 230 conditions per place. [2023-12-09 14:57:52,971 INFO L140 encePairwiseOnDemand]: 310/321 looper letters, 61 selfloop transitions, 17 changer transitions 6/249 dead transitions. [2023-12-09 14:57:52,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 249 transitions, 970 flow [2023-12-09 14:57:52,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-09 14:57:52,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-12-09 14:57:52,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2151 transitions. [2023-12-09 14:57:52,975 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8376168224299065 [2023-12-09 14:57:52,975 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2151 transitions. [2023-12-09 14:57:52,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2151 transitions. [2023-12-09 14:57:52,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:52,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2151 transitions. [2023-12-09 14:57:52,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 268.875) internal successors, (2151), 8 states have internal predecessors, (2151), 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) [2023-12-09 14:57:52,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 321.0) internal successors, (2889), 9 states have internal predecessors, (2889), 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) [2023-12-09 14:57:52,984 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 321.0) internal successors, (2889), 9 states have internal predecessors, (2889), 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) [2023-12-09 14:57:52,985 INFO L308 CegarLoopForPetriNet]: 204 programPoint places, 8 predicate places. [2023-12-09 14:57:52,985 INFO L500 AbstractCegarLoop]: Abstraction has has 212 places, 249 transitions, 970 flow [2023-12-09 14:57:52,986 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 261.8) internal successors, (1309), 5 states have internal predecessors, (1309), 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) [2023-12-09 14:57:52,986 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:52,986 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:52,986 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-09 14:57:52,986 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-09 14:57:52,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:52,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1287826203, now seen corresponding path program 1 times [2023-12-09 14:57:52,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:52,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931768329] [2023-12-09 14:57:52,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:52,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:53,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:53,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:57:53,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:53,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931768329] [2023-12-09 14:57:53,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931768329] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:53,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:53,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 14:57:53,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161734509] [2023-12-09 14:57:53,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:53,094 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 14:57:53,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:53,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 14:57:53,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-09 14:57:53,096 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 321 [2023-12-09 14:57:53,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 249 transitions, 970 flow. Second operand has 5 states, 5 states have (on average 268.2) internal successors, (1341), 5 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:53,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:53,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 321 [2023-12-09 14:57:53,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:53,336 INFO L124 PetriNetUnfolderBase]: 297/1475 cut-off events. [2023-12-09 14:57:53,336 INFO L125 PetriNetUnfolderBase]: For 1628/2170 co-relation queries the response was YES. [2023-12-09 14:57:53,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3270 conditions, 1475 events. 297/1475 cut-off events. For 1628/2170 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 8864 event pairs, 55 based on Foata normal form. 15/1362 useless extension candidates. Maximal degree in co-relation 2791. Up to 387 conditions per place. [2023-12-09 14:57:53,345 INFO L140 encePairwiseOnDemand]: 311/321 looper letters, 81 selfloop transitions, 26 changer transitions 6/294 dead transitions. [2023-12-09 14:57:53,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 294 transitions, 1509 flow [2023-12-09 14:57:53,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-09 14:57:53,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-12-09 14:57:53,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2200 transitions. [2023-12-09 14:57:53,349 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8566978193146417 [2023-12-09 14:57:53,349 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2200 transitions. [2023-12-09 14:57:53,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2200 transitions. [2023-12-09 14:57:53,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:53,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2200 transitions. [2023-12-09 14:57:53,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 275.0) internal successors, (2200), 8 states have internal predecessors, (2200), 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) [2023-12-09 14:57:53,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 321.0) internal successors, (2889), 9 states have internal predecessors, (2889), 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) [2023-12-09 14:57:53,356 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 321.0) internal successors, (2889), 9 states have internal predecessors, (2889), 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) [2023-12-09 14:57:53,357 INFO L308 CegarLoopForPetriNet]: 204 programPoint places, 15 predicate places. [2023-12-09 14:57:53,357 INFO L500 AbstractCegarLoop]: Abstraction has has 219 places, 294 transitions, 1509 flow [2023-12-09 14:57:53,358 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 268.2) internal successors, (1341), 5 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:53,358 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:53,358 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:53,358 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-09 14:57:53,358 INFO L425 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-09 14:57:53,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:53,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1453603433, now seen corresponding path program 1 times [2023-12-09 14:57:53,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:53,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203763580] [2023-12-09 14:57:53,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:53,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:53,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:53,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:57:53,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:53,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203763580] [2023-12-09 14:57:53,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203763580] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:53,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:53,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 14:57:53,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11205879] [2023-12-09 14:57:53,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:53,497 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 14:57:53,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:53,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 14:57:53,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-09 14:57:53,499 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 321 [2023-12-09 14:57:53,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 294 transitions, 1509 flow. Second operand has 5 states, 5 states have (on average 257.4) internal successors, (1287), 5 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:53,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:53,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 321 [2023-12-09 14:57:53,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:53,720 INFO L124 PetriNetUnfolderBase]: 309/1475 cut-off events. [2023-12-09 14:57:53,720 INFO L125 PetriNetUnfolderBase]: For 2479/3038 co-relation queries the response was YES. [2023-12-09 14:57:53,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3785 conditions, 1475 events. 309/1475 cut-off events. For 2479/3038 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 8747 event pairs, 45 based on Foata normal form. 16/1376 useless extension candidates. Maximal degree in co-relation 3269. Up to 407 conditions per place. [2023-12-09 14:57:53,758 INFO L140 encePairwiseOnDemand]: 311/321 looper letters, 92 selfloop transitions, 19 changer transitions 29/326 dead transitions. [2023-12-09 14:57:53,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 326 transitions, 2065 flow [2023-12-09 14:57:53,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-09 14:57:53,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-12-09 14:57:53,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2102 transitions. [2023-12-09 14:57:53,762 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8185358255451713 [2023-12-09 14:57:53,762 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2102 transitions. [2023-12-09 14:57:53,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2102 transitions. [2023-12-09 14:57:53,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:53,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2102 transitions. [2023-12-09 14:57:53,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 262.75) internal successors, (2102), 8 states have internal predecessors, (2102), 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) [2023-12-09 14:57:53,769 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 321.0) internal successors, (2889), 9 states have internal predecessors, (2889), 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) [2023-12-09 14:57:53,769 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 321.0) internal successors, (2889), 9 states have internal predecessors, (2889), 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) [2023-12-09 14:57:53,771 INFO L308 CegarLoopForPetriNet]: 204 programPoint places, 22 predicate places. [2023-12-09 14:57:53,771 INFO L500 AbstractCegarLoop]: Abstraction has has 226 places, 326 transitions, 2065 flow [2023-12-09 14:57:53,772 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 257.4) internal successors, (1287), 5 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-09 14:57:53,772 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:53,772 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:53,772 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-09 14:57:53,772 INFO L425 AbstractCegarLoop]: === Iteration 6 === Targeting thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-09 14:57:53,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:53,773 INFO L85 PathProgramCache]: Analyzing trace with hash -882876006, now seen corresponding path program 1 times [2023-12-09 14:57:53,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:53,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635813019] [2023-12-09 14:57:53,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:53,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:53,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:53,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:57:53,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:53,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635813019] [2023-12-09 14:57:53,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635813019] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:53,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:53,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 14:57:53,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833112760] [2023-12-09 14:57:53,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:53,892 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 14:57:53,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:53,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 14:57:53,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-09 14:57:53,895 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 321 [2023-12-09 14:57:53,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 326 transitions, 2065 flow. Second operand has 5 states, 5 states have (on average 279.6) internal successors, (1398), 5 states have internal predecessors, (1398), 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) [2023-12-09 14:57:53,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:53,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 321 [2023-12-09 14:57:53,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:54,311 INFO L124 PetriNetUnfolderBase]: 727/3193 cut-off events. [2023-12-09 14:57:54,311 INFO L125 PetriNetUnfolderBase]: For 7519/8338 co-relation queries the response was YES. [2023-12-09 14:57:54,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8597 conditions, 3193 events. 727/3193 cut-off events. For 7519/8338 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 23688 event pairs, 130 based on Foata normal form. 4/2924 useless extension candidates. Maximal degree in co-relation 7487. Up to 874 conditions per place. [2023-12-09 14:57:54,338 INFO L140 encePairwiseOnDemand]: 313/321 looper letters, 105 selfloop transitions, 8 changer transitions 38/397 dead transitions. [2023-12-09 14:57:54,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 397 transitions, 3118 flow [2023-12-09 14:57:54,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-09 14:57:54,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-12-09 14:57:54,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1982 transitions. [2023-12-09 14:57:54,342 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8820649755229194 [2023-12-09 14:57:54,342 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1982 transitions. [2023-12-09 14:57:54,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1982 transitions. [2023-12-09 14:57:54,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:54,343 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1982 transitions. [2023-12-09 14:57:54,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 283.14285714285717) internal successors, (1982), 7 states have internal predecessors, (1982), 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) [2023-12-09 14:57:54,348 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 321.0) internal successors, (2568), 8 states have internal predecessors, (2568), 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) [2023-12-09 14:57:54,348 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 321.0) internal successors, (2568), 8 states have internal predecessors, (2568), 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) [2023-12-09 14:57:54,350 INFO L308 CegarLoopForPetriNet]: 204 programPoint places, 28 predicate places. [2023-12-09 14:57:54,351 INFO L500 AbstractCegarLoop]: Abstraction has has 232 places, 397 transitions, 3118 flow [2023-12-09 14:57:54,351 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 279.6) internal successors, (1398), 5 states have internal predecessors, (1398), 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) [2023-12-09 14:57:54,351 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:54,351 INFO L233 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:54,351 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-09 14:57:54,352 INFO L425 AbstractCegarLoop]: === Iteration 7 === Targeting thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-09 14:57:54,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:54,352 INFO L85 PathProgramCache]: Analyzing trace with hash 114141626, now seen corresponding path program 1 times [2023-12-09 14:57:54,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:54,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099921797] [2023-12-09 14:57:54,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:54,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:54,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:54,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:57:54,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:54,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099921797] [2023-12-09 14:57:54,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099921797] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:54,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:54,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 14:57:54,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008803139] [2023-12-09 14:57:54,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:54,442 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 14:57:54,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:54,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 14:57:54,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-09 14:57:54,444 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 279 out of 321 [2023-12-09 14:57:54,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 397 transitions, 3118 flow. Second operand has 5 states, 5 states have (on average 281.2) internal successors, (1406), 5 states have internal predecessors, (1406), 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) [2023-12-09 14:57:54,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:54,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 279 of 321 [2023-12-09 14:57:54,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:55,341 INFO L124 PetriNetUnfolderBase]: 1462/6167 cut-off events. [2023-12-09 14:57:55,341 INFO L125 PetriNetUnfolderBase]: For 21381/23248 co-relation queries the response was YES. [2023-12-09 14:57:55,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18122 conditions, 6167 events. 1462/6167 cut-off events. For 21381/23248 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 55859 event pairs, 205 based on Foata normal form. 37/5702 useless extension candidates. Maximal degree in co-relation 15712. Up to 1807 conditions per place. [2023-12-09 14:57:55,390 INFO L140 encePairwiseOnDemand]: 314/321 looper letters, 223 selfloop transitions, 9 changer transitions 56/546 dead transitions. [2023-12-09 14:57:55,390 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 546 transitions, 5623 flow [2023-12-09 14:57:55,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-09 14:57:55,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-12-09 14:57:55,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2001 transitions. [2023-12-09 14:57:55,394 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.890520694259012 [2023-12-09 14:57:55,394 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2001 transitions. [2023-12-09 14:57:55,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2001 transitions. [2023-12-09 14:57:55,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:55,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2001 transitions. [2023-12-09 14:57:55,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 285.85714285714283) internal successors, (2001), 7 states have internal predecessors, (2001), 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) [2023-12-09 14:57:55,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 321.0) internal successors, (2568), 8 states have internal predecessors, (2568), 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) [2023-12-09 14:57:55,401 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 321.0) internal successors, (2568), 8 states have internal predecessors, (2568), 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) [2023-12-09 14:57:55,401 INFO L308 CegarLoopForPetriNet]: 204 programPoint places, 34 predicate places. [2023-12-09 14:57:55,402 INFO L500 AbstractCegarLoop]: Abstraction has has 238 places, 546 transitions, 5623 flow [2023-12-09 14:57:55,402 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 281.2) internal successors, (1406), 5 states have internal predecessors, (1406), 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) [2023-12-09 14:57:55,402 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:55,402 INFO L233 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:55,403 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-09 14:57:55,403 INFO L425 AbstractCegarLoop]: === Iteration 8 === Targeting thread_usbThread1of1ForFork0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-09 14:57:55,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:55,403 INFO L85 PathProgramCache]: Analyzing trace with hash 2026858860, now seen corresponding path program 1 times [2023-12-09 14:57:55,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:55,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622415635] [2023-12-09 14:57:55,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:55,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:55,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:55,468 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-09 14:57:55,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:55,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622415635] [2023-12-09 14:57:55,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622415635] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:55,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:55,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-09 14:57:55,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942599563] [2023-12-09 14:57:55,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:55,469 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-09 14:57:55,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:55,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-09 14:57:55,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-09 14:57:55,471 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 321 [2023-12-09 14:57:55,482 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 546 transitions, 5623 flow. Second operand has 3 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 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) [2023-12-09 14:57:55,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:55,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 321 [2023-12-09 14:57:55,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:55,617 INFO L124 PetriNetUnfolderBase]: 169/983 cut-off events. [2023-12-09 14:57:55,617 INFO L125 PetriNetUnfolderBase]: For 4584/4919 co-relation queries the response was YES. [2023-12-09 14:57:55,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2549 conditions, 983 events. 169/983 cut-off events. For 4584/4919 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4563 event pairs, 9 based on Foata normal form. 5/894 useless extension candidates. Maximal degree in co-relation 2330. Up to 179 conditions per place. [2023-12-09 14:57:55,629 INFO L140 encePairwiseOnDemand]: 315/321 looper letters, 75 selfloop transitions, 2 changer transitions 55/287 dead transitions. [2023-12-09 14:57:55,630 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 287 transitions, 2097 flow [2023-12-09 14:57:55,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-09 14:57:55,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-12-09 14:57:55,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 838 transitions. [2023-12-09 14:57:55,631 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.8701973001038421 [2023-12-09 14:57:55,632 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 838 transitions. [2023-12-09 14:57:55,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 838 transitions. [2023-12-09 14:57:55,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:55,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 838 transitions. [2023-12-09 14:57:55,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 279.3333333333333) internal successors, (838), 3 states have internal predecessors, (838), 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) [2023-12-09 14:57:55,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 321.0) internal successors, (1284), 4 states have internal predecessors, (1284), 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) [2023-12-09 14:57:55,635 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 321.0) internal successors, (1284), 4 states have internal predecessors, (1284), 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) [2023-12-09 14:57:55,636 INFO L308 CegarLoopForPetriNet]: 204 programPoint places, 22 predicate places. [2023-12-09 14:57:55,636 INFO L500 AbstractCegarLoop]: Abstraction has has 226 places, 287 transitions, 2097 flow [2023-12-09 14:57:55,636 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 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) [2023-12-09 14:57:55,636 INFO L225 CegarLoopForPetriNet]: Found error trace [2023-12-09 14:57:55,637 INFO L233 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:55,637 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-09 14:57:55,637 INFO L425 AbstractCegarLoop]: === Iteration 9 === Targeting thread_usbErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-12-09 14:57:55,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-09 14:57:55,637 INFO L85 PathProgramCache]: Analyzing trace with hash 321002080, now seen corresponding path program 1 times [2023-12-09 14:57:55,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-09 14:57:55,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498516481] [2023-12-09 14:57:55,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-09 14:57:55,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-09 14:57:55,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-09 14:57:55,771 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-09 14:57:55,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-09 14:57:55,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498516481] [2023-12-09 14:57:55,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498516481] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-09 14:57:55,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-09 14:57:55,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-09 14:57:55,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469582298] [2023-12-09 14:57:55,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-09 14:57:55,772 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-09 14:57:55,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-09 14:57:55,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-09 14:57:55,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-09 14:57:55,774 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 321 [2023-12-09 14:57:55,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 287 transitions, 2097 flow. Second operand has 5 states, 5 states have (on average 262.2) internal successors, (1311), 5 states have internal predecessors, (1311), 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) [2023-12-09 14:57:55,775 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-12-09 14:57:55,775 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 321 [2023-12-09 14:57:55,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-12-09 14:57:55,912 INFO L124 PetriNetUnfolderBase]: 170/1027 cut-off events. [2023-12-09 14:57:55,912 INFO L125 PetriNetUnfolderBase]: For 5033/5355 co-relation queries the response was YES. [2023-12-09 14:57:55,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2801 conditions, 1027 events. 170/1027 cut-off events. For 5033/5355 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4851 event pairs, 12 based on Foata normal form. 14/944 useless extension candidates. Maximal degree in co-relation 2569. Up to 182 conditions per place. [2023-12-09 14:57:55,920 INFO L140 encePairwiseOnDemand]: 311/321 looper letters, 0 selfloop transitions, 0 changer transitions 285/285 dead transitions. [2023-12-09 14:57:55,920 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 285 transitions, 2283 flow [2023-12-09 14:57:55,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-09 14:57:55,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-12-09 14:57:55,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1598 transitions. [2023-12-09 14:57:55,923 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.829698857736241 [2023-12-09 14:57:55,923 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1598 transitions. [2023-12-09 14:57:55,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1598 transitions. [2023-12-09 14:57:55,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-12-09 14:57:55,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1598 transitions. [2023-12-09 14:57:55,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 266.3333333333333) internal successors, (1598), 6 states have internal predecessors, (1598), 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) [2023-12-09 14:57:55,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 321.0) internal successors, (2247), 7 states have internal predecessors, (2247), 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) [2023-12-09 14:57:55,929 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 321.0) internal successors, (2247), 7 states have internal predecessors, (2247), 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) [2023-12-09 14:57:55,929 INFO L308 CegarLoopForPetriNet]: 204 programPoint places, 25 predicate places. [2023-12-09 14:57:55,929 INFO L500 AbstractCegarLoop]: Abstraction has has 229 places, 285 transitions, 2283 flow [2023-12-09 14:57:55,930 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 262.2) internal successors, (1311), 5 states have internal predecessors, (1311), 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) [2023-12-09 14:57:55,937 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/race-4_1-thread_local_vars.i_BEv2_AllErrorsAtOnce [2023-12-09 14:57:55,970 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 12 remaining) [2023-12-09 14:57:55,971 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 12 remaining) [2023-12-09 14:57:55,971 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (9 of 12 remaining) [2023-12-09 14:57:55,971 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (8 of 12 remaining) [2023-12-09 14:57:55,971 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 12 remaining) [2023-12-09 14:57:55,971 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 12 remaining) [2023-12-09 14:57:55,971 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 12 remaining) [2023-12-09 14:57:55,971 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2023-12-09 14:57:55,972 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 12 remaining) [2023-12-09 14:57:55,972 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 12 remaining) [2023-12-09 14:57:55,972 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 12 remaining) [2023-12-09 14:57:55,972 INFO L810 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2023-12-09 14:57:55,972 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-09 14:57:55,972 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-09 14:57:55,976 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-09 14:57:55,976 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-12-09 14:57:55,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 02:57:55 BasicIcfg [2023-12-09 14:57:55,980 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-09 14:57:55,981 INFO L158 Benchmark]: Toolchain (without parser) took 6299.49ms. Allocated memory was 210.8MB in the beginning and 413.1MB in the end (delta: 202.4MB). Free memory was 158.3MB in the beginning and 146.1MB in the end (delta: 12.2MB). Peak memory consumption was 213.4MB. Max. memory is 8.0GB. [2023-12-09 14:57:55,981 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 162.5MB. Free memory is still 115.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-09 14:57:55,981 INFO L158 Benchmark]: CACSL2BoogieTranslator took 883.70ms. Allocated memory is still 210.8MB. Free memory was 158.3MB in the beginning and 167.1MB in the end (delta: -8.9MB). Peak memory consumption was 56.5MB. Max. memory is 8.0GB. [2023-12-09 14:57:55,981 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.53ms. Allocated memory is still 210.8MB. Free memory was 167.1MB in the beginning and 163.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-09 14:57:55,981 INFO L158 Benchmark]: Boogie Preprocessor took 44.58ms. Allocated memory is still 210.8MB. Free memory was 163.5MB in the beginning and 160.3MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-09 14:57:55,982 INFO L158 Benchmark]: RCFGBuilder took 586.67ms. Allocated memory is still 210.8MB. Free memory was 160.3MB in the beginning and 133.6MB in the end (delta: 26.7MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2023-12-09 14:57:55,982 INFO L158 Benchmark]: TraceAbstraction took 4713.19ms. Allocated memory was 210.8MB in the beginning and 413.1MB in the end (delta: 202.4MB). Free memory was 133.1MB in the beginning and 146.1MB in the end (delta: -13.0MB). Peak memory consumption was 187.3MB. Max. memory is 8.0GB. [2023-12-09 14:57:55,983 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 162.5MB. Free memory is still 115.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 883.70ms. Allocated memory is still 210.8MB. Free memory was 158.3MB in the beginning and 167.1MB in the end (delta: -8.9MB). Peak memory consumption was 56.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 66.53ms. Allocated memory is still 210.8MB. Free memory was 167.1MB in the beginning and 163.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 44.58ms. Allocated memory is still 210.8MB. Free memory was 163.5MB in the beginning and 160.3MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 586.67ms. Allocated memory is still 210.8MB. Free memory was 160.3MB in the beginning and 133.6MB in the end (delta: 26.7MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * TraceAbstraction took 4713.19ms. Allocated memory was 210.8MB in the beginning and 413.1MB in the end (delta: 202.4MB). Free memory was 133.1MB in the beginning and 146.1MB in the end (delta: -13.0MB). Peak memory consumption was 187.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 319 locations, 12 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: 4.6s, OverallIterations: 9, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 212 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 212 mSDsluCounter, 509 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 313 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 647 IncrementalHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 196 mSDtfsCounter, 647 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5623occurred in iteration=7, InterpolantAutomatonStates: 59, 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, 705 NumberOfCodeBlocks, 705 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 696 ConstructedInterpolants, 0 QuantifiedInterpolants, 802 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 24/24 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-12-09 14:57:55,994 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...