/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-3902331-m [2022-09-20 22:33:47,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-20 22:33:47,443 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-20 22:33:47,476 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-20 22:33:47,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-20 22:33:47,477 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-20 22:33:47,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-20 22:33:47,480 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-20 22:33:47,482 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-20 22:33:47,482 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-20 22:33:47,483 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-20 22:33:47,484 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-20 22:33:47,484 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-20 22:33:47,485 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-20 22:33:47,486 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-20 22:33:47,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-20 22:33:47,488 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-20 22:33:47,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-20 22:33:47,490 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-20 22:33:47,491 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-20 22:33:47,493 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-20 22:33:47,495 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-20 22:33:47,496 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-20 22:33:47,497 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-20 22:33:47,500 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-20 22:33:47,513 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-20 22:33:47,517 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-20 22:33:47,518 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-20 22:33:47,519 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-09-20 22:33:47,556 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-20 22:33:47,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-20 22:33:47,557 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-20 22:33:47,557 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-20 22:33:47,558 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-20 22:33:47,558 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-20 22:33:47,558 INFO L138 SettingsManager]: * Use SBE=true [2022-09-20 22:33:47,558 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-20 22:33:47,558 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-20 22:33:47,558 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-20 22:33:47,559 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-20 22:33:47,559 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-20 22:33:47,559 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-20 22:33:47,559 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-20 22:33:47,559 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-20 22:33:47,559 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-20 22:33:47,559 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-20 22:33:47,559 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-20 22:33:47,560 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-20 22:33:47,560 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-20 22:33:47,560 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-20 22:33:47,560 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-20 22:33:47,560 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-20 22:33:47,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 22:33:47,560 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-20 22:33:47,560 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-20 22:33:47,561 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-20 22:33:47,561 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-20 22:33:47,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-20 22:33:47,561 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-20 22:33:47,561 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-20 22:33:47,561 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-20 22:33:47,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-20 22:33:47,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-20 22:33:47,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-20 22:33:47,782 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-20 22:33:47,783 INFO L275 PluginConnector]: CDTParser initialized [2022-09-20 22:33:47,784 INFO L432 ainManager$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 [2022-09-20 22:33:47,839 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a6ce7ec1/71e0b36980b646c584cf805332534ebf/FLAG2d352dae8 [2022-09-20 22:33:48,357 INFO L306 CDTParser]: Found 1 translation units. [2022-09-20 22:33:48,357 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i [2022-09-20 22:33:48,380 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a6ce7ec1/71e0b36980b646c584cf805332534ebf/FLAG2d352dae8 [2022-09-20 22:33:48,809 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a6ce7ec1/71e0b36980b646c584cf805332534ebf [2022-09-20 22:33:48,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-20 22:33:48,812 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-20 22:33:48,813 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-20 22:33:48,813 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-20 22:33:48,816 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-20 22:33:48,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:33:48" (1/1) ... [2022-09-20 22:33:48,817 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50d57c2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:33:48, skipping insertion in model container [2022-09-20 22:33:48,817 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:33:48" (1/1) ... [2022-09-20 22:33:48,823 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-20 22:33:48,860 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-20 22:33:49,518 WARN L230 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] [2022-09-20 22:33:49,575 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 22:33:49,587 INFO L203 MainTranslator]: Completed pre-run [2022-09-20 22:33:49,634 WARN L230 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] [2022-09-20 22:33:49,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 22:33:49,738 INFO L208 MainTranslator]: Completed translation [2022-09-20 22:33:49,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:33:49 WrapperNode [2022-09-20 22:33:49,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-20 22:33:49,740 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-20 22:33:49,740 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-20 22:33:49,740 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-20 22:33:49,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:33:49" (1/1) ... [2022-09-20 22:33:49,769 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:33:49" (1/1) ... [2022-09-20 22:33:49,799 INFO L138 Inliner]: procedures = 486, calls = 43, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 201 [2022-09-20 22:33:49,800 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-20 22:33:49,801 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-20 22:33:49,801 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-20 22:33:49,801 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-20 22:33:49,808 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:33:49" (1/1) ... [2022-09-20 22:33:49,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:33:49" (1/1) ... [2022-09-20 22:33:49,813 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:33:49" (1/1) ... [2022-09-20 22:33:49,815 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:33:49" (1/1) ... [2022-09-20 22:33:49,825 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:33:49" (1/1) ... [2022-09-20 22:33:49,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:33:49" (1/1) ... [2022-09-20 22:33:49,833 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:33:49" (1/1) ... [2022-09-20 22:33:49,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-20 22:33:49,843 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-20 22:33:49,843 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-20 22:33:49,843 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-20 22:33:49,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:33:49" (1/1) ... [2022-09-20 22:33:49,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 22:33:49,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-20 22:33:49,882 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) [2022-09-20 22:33:49,891 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 [2022-09-20 22:33:49,914 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2022-09-20 22:33:49,915 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2022-09-20 22:33:49,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-20 22:33:49,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-20 22:33:49,915 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2022-09-20 22:33:49,915 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2022-09-20 22:33:49,915 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-09-20 22:33:49,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-20 22:33:49,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-09-20 22:33:49,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-20 22:33:49,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-20 22:33:49,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-20 22:33:49,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-20 22:33:49,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-20 22:33:49,917 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-20 22:33:50,180 INFO L234 CfgBuilder]: Building ICFG [2022-09-20 22:33:50,182 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-20 22:33:50,371 INFO L275 CfgBuilder]: Performing block encoding [2022-09-20 22:33:50,379 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-20 22:33:50,379 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-09-20 22:33:50,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:33:50 BoogieIcfgContainer [2022-09-20 22:33:50,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-20 22:33:50,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-20 22:33:50,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-20 22:33:50,393 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-20 22:33:50,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 10:33:48" (1/3) ... [2022-09-20 22:33:50,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e9d7142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 10:33:50, skipping insertion in model container [2022-09-20 22:33:50,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:33:49" (2/3) ... [2022-09-20 22:33:50,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e9d7142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 10:33:50, skipping insertion in model container [2022-09-20 22:33:50,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:33:50" (3/3) ... [2022-09-20 22:33:50,396 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2022-09-20 22:33:50,411 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-20 22:33:50,412 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-09-20 22:33:50,412 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-20 22:33:50,486 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-09-20 22:33:50,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 301 places, 331 transitions, 692 flow [2022-09-20 22:33:50,650 INFO L130 PetriNetUnfolder]: 33/341 cut-off events. [2022-09-20 22:33:50,651 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-09-20 22:33:50,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 353 conditions, 341 events. 33/341 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 852 event pairs, 0 based on Foata normal form. 0/295 useless extension candidates. Maximal degree in co-relation 228. Up to 11 conditions per place. [2022-09-20 22:33:50,661 INFO L82 GeneralOperation]: Start removeDead. Operand has 301 places, 331 transitions, 692 flow [2022-09-20 22:33:50,672 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 212 places, 227 transitions, 471 flow [2022-09-20 22:33:50,685 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-20 22:33:50,693 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@c83a1b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-20 22:33:50,693 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-09-20 22:33:50,699 INFO L130 PetriNetUnfolder]: 1/40 cut-off events. [2022-09-20 22:33:50,699 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-20 22:33:50,699 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:33:50,700 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:33:50,700 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-09-20 22:33:50,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:33:50,705 INFO L85 PathProgramCache]: Analyzing trace with hash -825968135, now seen corresponding path program 1 times [2022-09-20 22:33:50,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:33:50,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103105422] [2022-09-20 22:33:50,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:33:50,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:33:50,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:33:51,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:33:51,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:33:51,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103105422] [2022-09-20 22:33:51,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103105422] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:33:51,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:33:51,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-20 22:33:51,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52180447] [2022-09-20 22:33:51,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:33:51,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-20 22:33:51,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:33:51,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-20 22:33:51,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-20 22:33:51,192 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 331 [2022-09-20 22:33:51,202 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 227 transitions, 471 flow. Second operand has 5 states, 5 states have (on average 273.2) internal successors, (1366), 5 states have internal predecessors, (1366), 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) [2022-09-20 22:33:51,203 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:33:51,203 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 331 [2022-09-20 22:33:51,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:33:51,408 INFO L130 PetriNetUnfolder]: 68/616 cut-off events. [2022-09-20 22:33:51,409 INFO L131 PetriNetUnfolder]: For 22/26 co-relation queries the response was YES. [2022-09-20 22:33:51,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 725 conditions, 616 events. 68/616 cut-off events. For 22/26 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2118 event pairs, 6 based on Foata normal form. 41/589 useless extension candidates. Maximal degree in co-relation 457. Up to 40 conditions per place. [2022-09-20 22:33:51,418 INFO L137 encePairwiseOnDemand]: 310/331 looper letters, 26 selfloop transitions, 12 changer transitions 0/221 dead transitions. [2022-09-20 22:33:51,418 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 221 transitions, 544 flow [2022-09-20 22:33:51,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-20 22:33:51,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-09-20 22:33:51,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1961 transitions. [2022-09-20 22:33:51,436 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8463530427276651 [2022-09-20 22:33:51,437 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1961 transitions. [2022-09-20 22:33:51,437 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1961 transitions. [2022-09-20 22:33:51,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:33:51,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1961 transitions. [2022-09-20 22:33:51,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 280.14285714285717) internal successors, (1961), 7 states have internal predecessors, (1961), 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) [2022-09-20 22:33:51,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 331.0) internal successors, (2648), 8 states have internal predecessors, (2648), 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) [2022-09-20 22:33:51,462 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 331.0) internal successors, (2648), 8 states have internal predecessors, (2648), 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) [2022-09-20 22:33:51,463 INFO L175 Difference]: Start difference. First operand has 212 places, 227 transitions, 471 flow. Second operand 7 states and 1961 transitions. [2022-09-20 22:33:51,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 221 transitions, 544 flow [2022-09-20 22:33:51,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 221 transitions, 540 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-20 22:33:51,473 INFO L231 Difference]: Finished difference. Result has 210 places, 214 transitions, 476 flow [2022-09-20 22:33:51,476 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=435, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=476, PETRI_PLACES=210, PETRI_TRANSITIONS=214} [2022-09-20 22:33:51,479 INFO L287 CegarLoopForPetriNet]: 212 programPoint places, -2 predicate places. [2022-09-20 22:33:51,479 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 214 transitions, 476 flow [2022-09-20 22:33:51,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 273.2) internal successors, (1366), 5 states have internal predecessors, (1366), 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) [2022-09-20 22:33:51,480 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:33:51,481 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:33:51,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-20 22:33:51,481 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-09-20 22:33:51,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:33:51,482 INFO L85 PathProgramCache]: Analyzing trace with hash 2049551677, now seen corresponding path program 1 times [2022-09-20 22:33:51,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:33:51,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867524890] [2022-09-20 22:33:51,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:33:51,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:33:51,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:33:51,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:33:51,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:33:51,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867524890] [2022-09-20 22:33:51,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867524890] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:33:51,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:33:51,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-20 22:33:51,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949902720] [2022-09-20 22:33:51,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:33:51,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-20 22:33:51,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:33:51,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-20 22:33:51,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-20 22:33:51,567 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 331 [2022-09-20 22:33:51,569 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 214 transitions, 476 flow. Second operand has 5 states, 5 states have (on average 274.2) internal successors, (1371), 5 states have internal predecessors, (1371), 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) [2022-09-20 22:33:51,569 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:33:51,569 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 331 [2022-09-20 22:33:51,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:33:51,727 INFO L130 PetriNetUnfolder]: 69/639 cut-off events. [2022-09-20 22:33:51,728 INFO L131 PetriNetUnfolder]: For 51/58 co-relation queries the response was YES. [2022-09-20 22:33:51,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 794 conditions, 639 events. 69/639 cut-off events. For 51/58 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2294 event pairs, 10 based on Foata normal form. 1/572 useless extension candidates. Maximal degree in co-relation 457. Up to 58 conditions per place. [2022-09-20 22:33:51,734 INFO L137 encePairwiseOnDemand]: 323/331 looper letters, 25 selfloop transitions, 3 changer transitions 7/214 dead transitions. [2022-09-20 22:33:51,734 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 214 transitions, 542 flow [2022-09-20 22:33:51,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-20 22:33:51,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-09-20 22:33:51,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1662 transitions. [2022-09-20 22:33:51,738 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8368580060422961 [2022-09-20 22:33:51,738 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1662 transitions. [2022-09-20 22:33:51,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1662 transitions. [2022-09-20 22:33:51,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:33:51,739 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1662 transitions. [2022-09-20 22:33:51,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 277.0) internal successors, (1662), 6 states have internal predecessors, (1662), 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) [2022-09-20 22:33:51,747 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 331.0) internal successors, (2317), 7 states have internal predecessors, (2317), 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) [2022-09-20 22:33:51,748 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 331.0) internal successors, (2317), 7 states have internal predecessors, (2317), 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) [2022-09-20 22:33:51,748 INFO L175 Difference]: Start difference. First operand has 210 places, 214 transitions, 476 flow. Second operand 6 states and 1662 transitions. [2022-09-20 22:33:51,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 214 transitions, 542 flow [2022-09-20 22:33:51,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 214 transitions, 523 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-09-20 22:33:51,754 INFO L231 Difference]: Finished difference. Result has 208 places, 205 transitions, 443 flow [2022-09-20 22:33:51,754 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=453, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=443, PETRI_PLACES=208, PETRI_TRANSITIONS=205} [2022-09-20 22:33:51,755 INFO L287 CegarLoopForPetriNet]: 212 programPoint places, -4 predicate places. [2022-09-20 22:33:51,755 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 205 transitions, 443 flow [2022-09-20 22:33:51,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 274.2) internal successors, (1371), 5 states have internal predecessors, (1371), 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) [2022-09-20 22:33:51,756 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:33:51,756 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:33:51,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-20 22:33:51,757 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-09-20 22:33:51,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:33:51,757 INFO L85 PathProgramCache]: Analyzing trace with hash -111987383, now seen corresponding path program 1 times [2022-09-20 22:33:51,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:33:51,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887212583] [2022-09-20 22:33:51,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:33:51,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:33:51,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:33:51,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:33:51,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:33:51,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887212583] [2022-09-20 22:33:51,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887212583] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:33:51,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:33:51,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-20 22:33:51,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441448585] [2022-09-20 22:33:51,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:33:51,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-20 22:33:51,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:33:51,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-20 22:33:51,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-20 22:33:51,857 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 331 [2022-09-20 22:33:51,859 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 205 transitions, 443 flow. Second operand has 5 states, 5 states have (on average 277.8) internal successors, (1389), 5 states have internal predecessors, (1389), 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) [2022-09-20 22:33:51,859 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:33:51,859 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 331 [2022-09-20 22:33:51,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:33:52,133 INFO L130 PetriNetUnfolder]: 114/936 cut-off events. [2022-09-20 22:33:52,133 INFO L131 PetriNetUnfolder]: For 69/81 co-relation queries the response was YES. [2022-09-20 22:33:52,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1180 conditions, 936 events. 114/936 cut-off events. For 69/81 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4071 event pairs, 7 based on Foata normal form. 0/843 useless extension candidates. Maximal degree in co-relation 1073. Up to 51 conditions per place. [2022-09-20 22:33:52,144 INFO L137 encePairwiseOnDemand]: 321/331 looper letters, 47 selfloop transitions, 18 changer transitions 0/243 dead transitions. [2022-09-20 22:33:52,144 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 243 transitions, 678 flow [2022-09-20 22:33:52,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-20 22:33:52,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-09-20 22:33:52,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2548 transitions. [2022-09-20 22:33:52,152 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.855320577374958 [2022-09-20 22:33:52,152 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2548 transitions. [2022-09-20 22:33:52,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2548 transitions. [2022-09-20 22:33:52,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:33:52,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2548 transitions. [2022-09-20 22:33:52,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 283.1111111111111) internal successors, (2548), 9 states have internal predecessors, (2548), 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) [2022-09-20 22:33:52,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 331.0) internal successors, (3310), 10 states have internal predecessors, (3310), 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) [2022-09-20 22:33:52,166 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 331.0) internal successors, (3310), 10 states have internal predecessors, (3310), 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) [2022-09-20 22:33:52,167 INFO L175 Difference]: Start difference. First operand has 208 places, 205 transitions, 443 flow. Second operand 9 states and 2548 transitions. [2022-09-20 22:33:52,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 243 transitions, 678 flow [2022-09-20 22:33:52,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 243 transitions, 672 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-20 22:33:52,173 INFO L231 Difference]: Finished difference. Result has 211 places, 220 transitions, 576 flow [2022-09-20 22:33:52,173 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=437, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=576, PETRI_PLACES=211, PETRI_TRANSITIONS=220} [2022-09-20 22:33:52,174 INFO L287 CegarLoopForPetriNet]: 212 programPoint places, -1 predicate places. [2022-09-20 22:33:52,174 INFO L495 AbstractCegarLoop]: Abstraction has has 211 places, 220 transitions, 576 flow [2022-09-20 22:33:52,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 277.8) internal successors, (1389), 5 states have internal predecessors, (1389), 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) [2022-09-20 22:33:52,175 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:33:52,175 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:33:52,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-20 22:33:52,176 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-09-20 22:33:52,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:33:52,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1888992867, now seen corresponding path program 1 times [2022-09-20 22:33:52,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:33:52,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729313217] [2022-09-20 22:33:52,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:33:52,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:33:52,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:33:52,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:33:52,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:33:52,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729313217] [2022-09-20 22:33:52,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729313217] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:33:52,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:33:52,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-20 22:33:52,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268474627] [2022-09-20 22:33:52,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:33:52,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-20 22:33:52,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:33:52,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-20 22:33:52,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-20 22:33:52,342 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 331 [2022-09-20 22:33:52,344 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 220 transitions, 576 flow. Second operand has 5 states, 5 states have (on average 282.0) internal successors, (1410), 5 states have internal predecessors, (1410), 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) [2022-09-20 22:33:52,344 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:33:52,344 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 331 [2022-09-20 22:33:52,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:33:52,716 INFO L130 PetriNetUnfolder]: 255/1852 cut-off events. [2022-09-20 22:33:52,716 INFO L131 PetriNetUnfolder]: For 897/951 co-relation queries the response was YES. [2022-09-20 22:33:52,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2859 conditions, 1852 events. 255/1852 cut-off events. For 897/951 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 12272 event pairs, 24 based on Foata normal form. 10/1710 useless extension candidates. Maximal degree in co-relation 1856. Up to 114 conditions per place. [2022-09-20 22:33:52,736 INFO L137 encePairwiseOnDemand]: 321/331 looper letters, 59 selfloop transitions, 37 changer transitions 0/285 dead transitions. [2022-09-20 22:33:52,737 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 285 transitions, 1082 flow [2022-09-20 22:33:52,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-20 22:33:52,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-09-20 22:33:52,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2596 transitions. [2022-09-20 22:33:52,742 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8714333669016449 [2022-09-20 22:33:52,743 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2596 transitions. [2022-09-20 22:33:52,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2596 transitions. [2022-09-20 22:33:52,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:33:52,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2596 transitions. [2022-09-20 22:33:52,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 288.44444444444446) internal successors, (2596), 9 states have internal predecessors, (2596), 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) [2022-09-20 22:33:52,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 331.0) internal successors, (3310), 10 states have internal predecessors, (3310), 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) [2022-09-20 22:33:52,755 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 331.0) internal successors, (3310), 10 states have internal predecessors, (3310), 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) [2022-09-20 22:33:52,755 INFO L175 Difference]: Start difference. First operand has 211 places, 220 transitions, 576 flow. Second operand 9 states and 2596 transitions. [2022-09-20 22:33:52,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 285 transitions, 1082 flow [2022-09-20 22:33:52,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 285 transitions, 1058 flow, removed 12 selfloop flow, removed 0 redundant places. [2022-09-20 22:33:52,766 INFO L231 Difference]: Finished difference. Result has 225 places, 251 transitions, 904 flow [2022-09-20 22:33:52,767 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=904, PETRI_PLACES=225, PETRI_TRANSITIONS=251} [2022-09-20 22:33:52,767 INFO L287 CegarLoopForPetriNet]: 212 programPoint places, 13 predicate places. [2022-09-20 22:33:52,768 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 251 transitions, 904 flow [2022-09-20 22:33:52,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 282.0) internal successors, (1410), 5 states have internal predecessors, (1410), 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) [2022-09-20 22:33:52,768 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:33:52,769 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:33:52,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-20 22:33:52,769 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-09-20 22:33:52,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:33:52,770 INFO L85 PathProgramCache]: Analyzing trace with hash -389135563, now seen corresponding path program 1 times [2022-09-20 22:33:52,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:33:52,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282278427] [2022-09-20 22:33:52,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:33:52,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:33:52,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:33:52,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:33:52,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:33:52,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282278427] [2022-09-20 22:33:52,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282278427] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:33:52,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:33:52,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-20 22:33:52,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033315865] [2022-09-20 22:33:52,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:33:52,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-20 22:33:52,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:33:52,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-20 22:33:52,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-20 22:33:52,922 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 331 [2022-09-20 22:33:52,924 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 251 transitions, 904 flow. Second operand has 5 states, 5 states have (on average 275.0) internal successors, (1375), 5 states have internal predecessors, (1375), 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) [2022-09-20 22:33:52,924 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:33:52,924 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 331 [2022-09-20 22:33:52,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:33:53,314 INFO L130 PetriNetUnfolder]: 264/1932 cut-off events. [2022-09-20 22:33:53,314 INFO L131 PetriNetUnfolder]: For 2544/2636 co-relation queries the response was YES. [2022-09-20 22:33:53,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3699 conditions, 1932 events. 264/1932 cut-off events. For 2544/2636 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 12969 event pairs, 31 based on Foata normal form. 6/1801 useless extension candidates. Maximal degree in co-relation 2679. Up to 202 conditions per place. [2022-09-20 22:33:53,337 INFO L137 encePairwiseOnDemand]: 323/331 looper letters, 59 selfloop transitions, 14 changer transitions 18/283 dead transitions. [2022-09-20 22:33:53,337 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 283 transitions, 1353 flow [2022-09-20 22:33:53,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-20 22:33:53,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-09-20 22:33:53,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2220 transitions. [2022-09-20 22:33:53,342 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8383685800604229 [2022-09-20 22:33:53,342 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2220 transitions. [2022-09-20 22:33:53,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2220 transitions. [2022-09-20 22:33:53,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:33:53,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2220 transitions. [2022-09-20 22:33:53,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 277.5) internal successors, (2220), 8 states have internal predecessors, (2220), 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) [2022-09-20 22:33:53,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 331.0) internal successors, (2979), 9 states have internal predecessors, (2979), 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) [2022-09-20 22:33:53,354 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 331.0) internal successors, (2979), 9 states have internal predecessors, (2979), 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) [2022-09-20 22:33:53,354 INFO L175 Difference]: Start difference. First operand has 225 places, 251 transitions, 904 flow. Second operand 8 states and 2220 transitions. [2022-09-20 22:33:53,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 283 transitions, 1353 flow [2022-09-20 22:33:53,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 283 transitions, 1309 flow, removed 22 selfloop flow, removed 0 redundant places. [2022-09-20 22:33:53,369 INFO L231 Difference]: Finished difference. Result has 238 places, 255 transitions, 959 flow [2022-09-20 22:33:53,369 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=880, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=959, PETRI_PLACES=238, PETRI_TRANSITIONS=255} [2022-09-20 22:33:53,372 INFO L287 CegarLoopForPetriNet]: 212 programPoint places, 26 predicate places. [2022-09-20 22:33:53,372 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 255 transitions, 959 flow [2022-09-20 22:33:53,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 275.0) internal successors, (1375), 5 states have internal predecessors, (1375), 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) [2022-09-20 22:33:53,373 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:33:53,373 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:33:53,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-20 22:33:53,375 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-09-20 22:33:53,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:33:53,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1194671646, now seen corresponding path program 1 times [2022-09-20 22:33:53,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:33:53,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882260408] [2022-09-20 22:33:53,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:33:53,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:33:53,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:33:53,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:33:53,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:33:53,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882260408] [2022-09-20 22:33:53,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882260408] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:33:53,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:33:53,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-20 22:33:53,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046547803] [2022-09-20 22:33:53,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:33:53,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-20 22:33:53,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:33:53,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-20 22:33:53,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-20 22:33:53,476 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 331 [2022-09-20 22:33:53,477 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 255 transitions, 959 flow. Second operand has 5 states, 5 states have (on average 293.0) internal successors, (1465), 5 states have internal predecessors, (1465), 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) [2022-09-20 22:33:53,478 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:33:53,478 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 331 [2022-09-20 22:33:53,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:33:54,113 INFO L130 PetriNetUnfolder]: 292/3224 cut-off events. [2022-09-20 22:33:54,114 INFO L131 PetriNetUnfolder]: For 2004/2100 co-relation queries the response was YES. [2022-09-20 22:33:54,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5657 conditions, 3224 events. 292/3224 cut-off events. For 2004/2100 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 27631 event pairs, 15 based on Foata normal form. 3/3026 useless extension candidates. Maximal degree in co-relation 5586. Up to 194 conditions per place. [2022-09-20 22:33:54,143 INFO L137 encePairwiseOnDemand]: 324/331 looper letters, 27 selfloop transitions, 9 changer transitions 0/275 dead transitions. [2022-09-20 22:33:54,143 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 275 transitions, 1084 flow [2022-09-20 22:33:54,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-20 22:33:54,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-09-20 22:33:54,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2073 transitions. [2022-09-20 22:33:54,148 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8946914113077256 [2022-09-20 22:33:54,148 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2073 transitions. [2022-09-20 22:33:54,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2073 transitions. [2022-09-20 22:33:54,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:33:54,149 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2073 transitions. [2022-09-20 22:33:54,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 296.14285714285717) internal successors, (2073), 7 states have internal predecessors, (2073), 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) [2022-09-20 22:33:54,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 331.0) internal successors, (2648), 8 states have internal predecessors, (2648), 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) [2022-09-20 22:33:54,158 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 331.0) internal successors, (2648), 8 states have internal predecessors, (2648), 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) [2022-09-20 22:33:54,158 INFO L175 Difference]: Start difference. First operand has 238 places, 255 transitions, 959 flow. Second operand 7 states and 2073 transitions. [2022-09-20 22:33:54,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 275 transitions, 1084 flow [2022-09-20 22:33:54,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 275 transitions, 1054 flow, removed 15 selfloop flow, removed 2 redundant places. [2022-09-20 22:33:54,181 INFO L231 Difference]: Finished difference. Result has 246 places, 263 transitions, 997 flow [2022-09-20 22:33:54,182 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=929, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=997, PETRI_PLACES=246, PETRI_TRANSITIONS=263} [2022-09-20 22:33:54,182 INFO L287 CegarLoopForPetriNet]: 212 programPoint places, 34 predicate places. [2022-09-20 22:33:54,182 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 263 transitions, 997 flow [2022-09-20 22:33:54,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 293.0) internal successors, (1465), 5 states have internal predecessors, (1465), 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) [2022-09-20 22:33:54,183 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:33:54,183 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:33:54,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-20 22:33:54,184 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-09-20 22:33:54,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:33:54,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1149053716, now seen corresponding path program 1 times [2022-09-20 22:33:54,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:33:54,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910162959] [2022-09-20 22:33:54,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:33:54,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:33:54,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:33:54,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:33:54,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:33:54,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910162959] [2022-09-20 22:33:54,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910162959] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:33:54,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:33:54,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-20 22:33:54,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103332873] [2022-09-20 22:33:54,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:33:54,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-20 22:33:54,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:33:54,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-20 22:33:54,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-20 22:33:54,260 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 331 [2022-09-20 22:33:54,262 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 263 transitions, 997 flow. Second operand has 5 states, 5 states have (on average 292.2) internal successors, (1461), 5 states have internal predecessors, (1461), 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) [2022-09-20 22:33:54,262 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:33:54,262 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 331 [2022-09-20 22:33:54,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:33:55,198 INFO L130 PetriNetUnfolder]: 384/4216 cut-off events. [2022-09-20 22:33:55,198 INFO L131 PetriNetUnfolder]: For 2458/2649 co-relation queries the response was YES. [2022-09-20 22:33:55,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7428 conditions, 4216 events. 384/4216 cut-off events. For 2458/2649 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 38111 event pairs, 20 based on Foata normal form. 4/3963 useless extension candidates. Maximal degree in co-relation 6513. Up to 236 conditions per place. [2022-09-20 22:33:55,242 INFO L137 encePairwiseOnDemand]: 323/331 looper letters, 24 selfloop transitions, 8 changer transitions 0/278 dead transitions. [2022-09-20 22:33:55,243 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 278 transitions, 1105 flow [2022-09-20 22:33:55,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-20 22:33:55,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-09-20 22:33:55,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2062 transitions. [2022-09-20 22:33:55,249 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.889943892965041 [2022-09-20 22:33:55,249 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2062 transitions. [2022-09-20 22:33:55,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2062 transitions. [2022-09-20 22:33:55,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:33:55,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2062 transitions. [2022-09-20 22:33:55,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 294.57142857142856) internal successors, (2062), 7 states have internal predecessors, (2062), 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) [2022-09-20 22:33:55,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 331.0) internal successors, (2648), 8 states have internal predecessors, (2648), 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) [2022-09-20 22:33:55,266 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 331.0) internal successors, (2648), 8 states have internal predecessors, (2648), 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) [2022-09-20 22:33:55,267 INFO L175 Difference]: Start difference. First operand has 246 places, 263 transitions, 997 flow. Second operand 7 states and 2062 transitions. [2022-09-20 22:33:55,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 278 transitions, 1105 flow [2022-09-20 22:33:55,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 278 transitions, 1105 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-09-20 22:33:55,297 INFO L231 Difference]: Finished difference. Result has 257 places, 270 transitions, 1055 flow [2022-09-20 22:33:55,298 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=997, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1055, PETRI_PLACES=257, PETRI_TRANSITIONS=270} [2022-09-20 22:33:55,298 INFO L287 CegarLoopForPetriNet]: 212 programPoint places, 45 predicate places. [2022-09-20 22:33:55,299 INFO L495 AbstractCegarLoop]: Abstraction has has 257 places, 270 transitions, 1055 flow [2022-09-20 22:33:55,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 292.2) internal successors, (1461), 5 states have internal predecessors, (1461), 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) [2022-09-20 22:33:55,300 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:33:55,300 INFO L208 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, 1, 1, 1, 1] [2022-09-20 22:33:55,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-20 22:33:55,301 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread_usbThread1of1ForFork0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-09-20 22:33:55,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:33:55,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1198564422, now seen corresponding path program 1 times [2022-09-20 22:33:55,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:33:55,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139587635] [2022-09-20 22:33:55,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:33:55,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:33:55,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:33:55,383 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:33:55,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:33:55,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139587635] [2022-09-20 22:33:55,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139587635] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:33:55,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:33:55,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-20 22:33:55,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494124368] [2022-09-20 22:33:55,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:33:55,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-20 22:33:55,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:33:55,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-20 22:33:55,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-20 22:33:55,386 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 331 [2022-09-20 22:33:55,387 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 270 transitions, 1055 flow. Second operand has 3 states, 3 states have (on average 285.3333333333333) internal successors, (856), 3 states have internal predecessors, (856), 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) [2022-09-20 22:33:55,387 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:33:55,388 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 331 [2022-09-20 22:33:55,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:33:55,580 INFO L130 PetriNetUnfolder]: 51/679 cut-off events. [2022-09-20 22:33:55,581 INFO L131 PetriNetUnfolder]: For 170/170 co-relation queries the response was YES. [2022-09-20 22:33:55,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1035 conditions, 679 events. 51/679 cut-off events. For 170/170 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2239 event pairs, 0 based on Foata normal form. 0/619 useless extension candidates. Maximal degree in co-relation 989. Up to 46 conditions per place. [2022-09-20 22:33:55,585 INFO L137 encePairwiseOnDemand]: 325/331 looper letters, 14 selfloop transitions, 2 changer transitions 42/223 dead transitions. [2022-09-20 22:33:55,585 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 223 transitions, 738 flow [2022-09-20 22:33:55,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-20 22:33:55,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-20 22:33:55,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 870 transitions. [2022-09-20 22:33:55,588 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8761329305135952 [2022-09-20 22:33:55,588 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 870 transitions. [2022-09-20 22:33:55,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 870 transitions. [2022-09-20 22:33:55,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:33:55,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 870 transitions. [2022-09-20 22:33:55,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 290.0) internal successors, (870), 3 states have internal predecessors, (870), 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) [2022-09-20 22:33:55,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 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) [2022-09-20 22:33:55,592 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 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) [2022-09-20 22:33:55,592 INFO L175 Difference]: Start difference. First operand has 257 places, 270 transitions, 1055 flow. Second operand 3 states and 870 transitions. [2022-09-20 22:33:55,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 223 transitions, 738 flow [2022-09-20 22:33:55,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 223 transitions, 651 flow, removed 19 selfloop flow, removed 22 redundant places. [2022-09-20 22:33:55,598 INFO L231 Difference]: Finished difference. Result has 228 places, 179 transitions, 488 flow [2022-09-20 22:33:55,598 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=607, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=488, PETRI_PLACES=228, PETRI_TRANSITIONS=179} [2022-09-20 22:33:55,599 INFO L287 CegarLoopForPetriNet]: 212 programPoint places, 16 predicate places. [2022-09-20 22:33:55,599 INFO L495 AbstractCegarLoop]: Abstraction has has 228 places, 179 transitions, 488 flow [2022-09-20 22:33:55,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 285.3333333333333) internal successors, (856), 3 states have internal predecessors, (856), 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) [2022-09-20 22:33:55,600 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:33:55,600 INFO L208 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:33:55,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-20 22:33:55,600 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread_usbErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-09-20 22:33:55,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:33:55,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1028844224, now seen corresponding path program 1 times [2022-09-20 22:33:55,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:33:55,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308415997] [2022-09-20 22:33:55,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:33:55,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:33:55,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:33:55,690 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-09-20 22:33:55,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:33:55,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308415997] [2022-09-20 22:33:55,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308415997] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:33:55,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:33:55,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-20 22:33:55,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656824180] [2022-09-20 22:33:55,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:33:55,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-20 22:33:55,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:33:55,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-20 22:33:55,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-20 22:33:55,693 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 331 [2022-09-20 22:33:55,694 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 179 transitions, 488 flow. Second operand has 5 states, 5 states have (on average 278.2) internal successors, (1391), 5 states have internal predecessors, (1391), 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) [2022-09-20 22:33:55,694 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:33:55,695 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 331 [2022-09-20 22:33:55,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:33:55,797 INFO L130 PetriNetUnfolder]: 31/389 cut-off events. [2022-09-20 22:33:55,797 INFO L131 PetriNetUnfolder]: For 56/68 co-relation queries the response was YES. [2022-09-20 22:33:55,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 559 conditions, 389 events. 31/389 cut-off events. For 56/68 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 611 event pairs, 0 based on Foata normal form. 2/362 useless extension candidates. Maximal degree in co-relation 537. Up to 22 conditions per place. [2022-09-20 22:33:55,801 INFO L137 encePairwiseOnDemand]: 325/331 looper letters, 0 selfloop transitions, 0 changer transitions 187/187 dead transitions. [2022-09-20 22:33:55,801 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 187 transitions, 583 flow [2022-09-20 22:33:55,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-20 22:33:55,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-09-20 22:33:55,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1683 transitions. [2022-09-20 22:33:55,805 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8474320241691843 [2022-09-20 22:33:55,805 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1683 transitions. [2022-09-20 22:33:55,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1683 transitions. [2022-09-20 22:33:55,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:33:55,806 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1683 transitions. [2022-09-20 22:33:55,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 280.5) internal successors, (1683), 6 states have internal predecessors, (1683), 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) [2022-09-20 22:33:55,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 331.0) internal successors, (2317), 7 states have internal predecessors, (2317), 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) [2022-09-20 22:33:55,813 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 331.0) internal successors, (2317), 7 states have internal predecessors, (2317), 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) [2022-09-20 22:33:55,813 INFO L175 Difference]: Start difference. First operand has 228 places, 179 transitions, 488 flow. Second operand 6 states and 1683 transitions. [2022-09-20 22:33:55,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 187 transitions, 583 flow [2022-09-20 22:33:55,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 187 transitions, 550 flow, removed 3 selfloop flow, removed 13 redundant places. [2022-09-20 22:33:55,816 INFO L231 Difference]: Finished difference. Result has 187 places, 0 transitions, 0 flow [2022-09-20 22:33:55,817 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=451, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=187, PETRI_TRANSITIONS=0} [2022-09-20 22:33:55,817 INFO L287 CegarLoopForPetriNet]: 212 programPoint places, -25 predicate places. [2022-09-20 22:33:55,817 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 0 transitions, 0 flow [2022-09-20 22:33:55,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 278.2) internal successors, (1391), 5 states have internal predecessors, (1391), 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) [2022-09-20 22:33:55,825 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 12 remaining) [2022-09-20 22:33:55,825 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 12 remaining) [2022-09-20 22:33:55,826 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (9 of 12 remaining) [2022-09-20 22:33:55,826 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (8 of 12 remaining) [2022-09-20 22:33:55,826 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 12 remaining) [2022-09-20 22:33:55,826 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 12 remaining) [2022-09-20 22:33:55,826 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 12 remaining) [2022-09-20 22:33:55,826 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2022-09-20 22:33:55,827 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 12 remaining) [2022-09-20 22:33:55,827 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 12 remaining) [2022-09-20 22:33:55,827 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 12 remaining) [2022-09-20 22:33:55,827 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2022-09-20 22:33:55,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-09-20 22:33:55,827 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-20 22:33:55,832 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-20 22:33:55,832 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-20 22:33:55,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 10:33:55 BasicIcfg [2022-09-20 22:33:55,837 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-20 22:33:55,838 INFO L158 Benchmark]: Toolchain (without parser) took 7025.56ms. Allocated memory was 232.8MB in the beginning and 407.9MB in the end (delta: 175.1MB). Free memory was 203.9MB in the beginning and 230.5MB in the end (delta: -26.6MB). Peak memory consumption was 148.5MB. Max. memory is 8.0GB. [2022-09-20 22:33:55,838 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 181.4MB. Free memory is still 135.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-20 22:33:55,838 INFO L158 Benchmark]: CACSL2BoogieTranslator took 925.95ms. Allocated memory is still 232.8MB. Free memory was 203.9MB in the beginning and 159.7MB in the end (delta: 44.2MB). Peak memory consumption was 46.1MB. Max. memory is 8.0GB. [2022-09-20 22:33:55,838 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.53ms. Allocated memory is still 232.8MB. Free memory was 159.7MB in the beginning and 156.0MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-09-20 22:33:55,839 INFO L158 Benchmark]: Boogie Preprocessor took 38.20ms. Allocated memory is still 232.8MB. Free memory was 156.0MB in the beginning and 153.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-20 22:33:55,839 INFO L158 Benchmark]: RCFGBuilder took 538.47ms. Allocated memory is still 232.8MB. Free memory was 152.9MB in the beginning and 131.9MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2022-09-20 22:33:55,839 INFO L158 Benchmark]: TraceAbstraction took 5454.03ms. Allocated memory was 232.8MB in the beginning and 407.9MB in the end (delta: 175.1MB). Free memory was 131.4MB in the beginning and 230.5MB in the end (delta: -99.1MB). Peak memory consumption was 77.1MB. Max. memory is 8.0GB. [2022-09-20 22:33:55,841 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 181.4MB. Free memory is still 135.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 925.95ms. Allocated memory is still 232.8MB. Free memory was 203.9MB in the beginning and 159.7MB in the end (delta: 44.2MB). Peak memory consumption was 46.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 60.53ms. Allocated memory is still 232.8MB. Free memory was 159.7MB in the beginning and 156.0MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.20ms. Allocated memory is still 232.8MB. Free memory was 156.0MB in the beginning and 153.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 538.47ms. Allocated memory is still 232.8MB. Free memory was 152.9MB in the beginning and 131.9MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 5454.03ms. Allocated memory was 232.8MB in the beginning and 407.9MB in the end (delta: 175.1MB). Free memory was 131.4MB in the beginning and 230.5MB in the end (delta: -99.1MB). Peak memory consumption was 77.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 328 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: 5.3s, OverallIterations: 9, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 270 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 270 mSDsluCounter, 355 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 316 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 443 IncrementalHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 149 mSDtfsCounter, 443 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1055occurred in iteration=7, InterpolantAutomatonStates: 62, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 750 NumberOfCodeBlocks, 750 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 741 ConstructedInterpolants, 0 QuantifiedInterpolants, 857 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 23/23 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! [2022-09-20 22:33:55,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...