./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 15:21:14,564 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 15:21:14,566 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 15:21:14,602 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 15:21:14,603 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 15:21:14,604 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 15:21:14,605 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 15:21:14,607 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 15:21:14,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 15:21:14,612 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 15:21:14,613 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 15:21:14,614 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 15:21:14,614 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 15:21:14,616 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 15:21:14,617 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 15:21:14,619 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 15:21:14,620 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 15:21:14,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 15:21:14,622 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 15:21:14,626 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 15:21:14,628 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 15:21:14,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 15:21:14,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 15:21:14,630 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 15:21:14,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 15:21:14,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 15:21:14,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 15:21:14,637 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 15:21:14,638 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 15:21:14,638 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 15:21:14,639 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 15:21:14,639 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 15:21:14,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 15:21:14,641 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 15:21:14,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 15:21:14,642 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 15:21:14,642 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 15:21:14,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 15:21:14,643 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 15:21:14,643 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 15:21:14,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 15:21:14,645 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 15:21:14,646 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 15:21:14,671 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 15:21:14,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 15:21:14,671 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 15:21:14,671 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 15:21:14,672 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 15:21:14,672 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 15:21:14,673 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 15:21:14,673 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 15:21:14,673 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 15:21:14,674 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 15:21:14,674 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 15:21:14,674 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 15:21:14,674 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 15:21:14,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 15:21:14,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 15:21:14,674 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 15:21:14,675 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 15:21:14,675 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 15:21:14,675 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 15:21:14,676 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 15:21:14,676 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 15:21:14,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 15:21:14,676 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 15:21:14,676 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 15:21:14,676 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 15:21:14,677 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 15:21:14,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 15:21:14,677 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 15:21:14,677 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 15:21:14,677 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 15:21:14,677 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 [2022-07-12 15:21:14,878 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 15:21:14,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 15:21:14,893 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 15:21:14,894 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 15:21:14,895 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 15:21:14,896 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2022-07-12 15:21:14,951 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2303e6d5/098b9fd12f2948cf858ca5a640a46434/FLAGc0c4d1640 [2022-07-12 15:21:15,562 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 15:21:15,563 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2022-07-12 15:21:15,599 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2303e6d5/098b9fd12f2948cf858ca5a640a46434/FLAGc0c4d1640 [2022-07-12 15:21:15,967 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2303e6d5/098b9fd12f2948cf858ca5a640a46434 [2022-07-12 15:21:15,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 15:21:15,970 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 15:21:15,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 15:21:15,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 15:21:15,976 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 15:21:15,976 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:21:15" (1/1) ... [2022-07-12 15:21:15,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52568dc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:21:15, skipping insertion in model container [2022-07-12 15:21:15,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:21:15" (1/1) ... [2022-07-12 15:21:15,981 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 15:21:16,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 15:21:18,024 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[347848,347861] [2022-07-12 15:21:18,026 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348017,348030] [2022-07-12 15:21:18,026 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348184,348197] [2022-07-12 15:21:18,026 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348352,348365] [2022-07-12 15:21:18,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 15:21:18,089 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 15:21:18,268 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckException: Type check failed for C: clkctl = (unsigned int )clkctl & 127U [8537] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-12 15:21:18,272 INFO L158 Benchmark]: Toolchain (without parser) took 2300.94ms. Allocated memory was 100.7MB in the beginning and 127.9MB in the end (delta: 27.3MB). Free memory was 52.9MB in the beginning and 52.9MB in the end (delta: 34.4kB). Peak memory consumption was 45.3MB. Max. memory is 16.1GB. [2022-07-12 15:21:18,273 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 83.9MB. Free memory was 56.0MB in the beginning and 56.0MB in the end (delta: 21.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 15:21:18,274 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2296.85ms. Allocated memory was 100.7MB in the beginning and 127.9MB in the end (delta: 27.3MB). Free memory was 52.6MB in the beginning and 52.9MB in the end (delta: -297.7kB). Peak memory consumption was 45.3MB. Max. memory is 16.1GB. [2022-07-12 15:21:18,275 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 83.9MB. Free memory was 56.0MB in the beginning and 56.0MB in the end (delta: 21.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2296.85ms. Allocated memory was 100.7MB in the beginning and 127.9MB in the end (delta: 27.3MB). Free memory was 52.6MB in the beginning and 52.9MB in the end (delta: -297.7kB). Peak memory consumption was 45.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: clkctl = (unsigned int )clkctl & 127U [8537] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: clkctl = (unsigned int )clkctl & 127U [8537]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 15:21:19,832 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 15:21:19,835 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 15:21:19,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 15:21:19,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 15:21:19,880 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 15:21:19,883 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 15:21:19,885 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 15:21:19,886 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 15:21:19,890 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 15:21:19,898 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 15:21:19,899 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 15:21:19,900 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 15:21:19,901 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 15:21:19,902 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 15:21:19,906 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 15:21:19,906 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 15:21:19,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 15:21:19,909 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 15:21:19,913 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 15:21:19,914 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 15:21:19,914 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 15:21:19,916 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 15:21:19,917 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 15:21:19,918 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 15:21:19,923 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 15:21:19,923 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 15:21:19,923 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 15:21:19,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 15:21:19,924 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 15:21:19,925 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 15:21:19,925 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 15:21:19,926 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 15:21:19,927 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 15:21:19,928 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 15:21:19,928 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 15:21:19,929 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 15:21:19,929 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 15:21:19,929 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 15:21:19,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 15:21:19,930 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 15:21:19,931 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 15:21:19,935 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 15:21:19,960 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 15:21:19,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 15:21:19,961 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 15:21:19,961 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 15:21:19,962 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 15:21:19,962 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 15:21:19,963 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 15:21:19,963 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 15:21:19,963 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 15:21:19,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 15:21:19,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 15:21:19,964 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 15:21:19,964 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 15:21:19,965 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 15:21:19,965 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 15:21:19,965 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 15:21:19,965 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 15:21:19,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 15:21:19,965 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 15:21:19,966 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 15:21:19,966 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 15:21:19,966 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 15:21:19,966 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 15:21:19,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 15:21:19,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 15:21:19,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 15:21:19,967 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 15:21:19,967 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 15:21:19,967 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 15:21:19,967 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 15:21:19,968 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 15:21:19,968 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 15:21:19,968 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 15:21:19,968 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 [2022-07-12 15:21:20,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 15:21:20,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 15:21:20,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 15:21:20,393 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 15:21:20,404 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 15:21:20,405 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2022-07-12 15:21:20,473 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78d948f4e/348879750bb44081ab7543e869d31507/FLAGfbe491e25 [2022-07-12 15:21:21,161 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 15:21:21,161 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2022-07-12 15:21:21,202 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78d948f4e/348879750bb44081ab7543e869d31507/FLAGfbe491e25 [2022-07-12 15:21:21,280 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78d948f4e/348879750bb44081ab7543e869d31507 [2022-07-12 15:21:21,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 15:21:21,283 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 15:21:21,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 15:21:21,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 15:21:21,287 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 15:21:21,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:21:21" (1/1) ... [2022-07-12 15:21:21,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6be06231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:21:21, skipping insertion in model container [2022-07-12 15:21:21,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:21:21" (1/1) ... [2022-07-12 15:21:21,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 15:21:21,421 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 15:21:23,060 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[347848,347861] [2022-07-12 15:21:23,062 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348017,348030] [2022-07-12 15:21:23,062 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348184,348197] [2022-07-12 15:21:23,063 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348352,348365] [2022-07-12 15:21:23,081 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 15:21:23,115 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 15:21:23,168 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 15:21:23,381 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[347848,347861] [2022-07-12 15:21:23,384 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348017,348030] [2022-07-12 15:21:23,385 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348184,348197] [2022-07-12 15:21:23,385 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348352,348365] [2022-07-12 15:21:23,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 15:21:23,402 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 15:21:23,661 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[347848,347861] [2022-07-12 15:21:23,662 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348017,348030] [2022-07-12 15:21:23,662 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348184,348197] [2022-07-12 15:21:23,662 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348352,348365] [2022-07-12 15:21:23,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 15:21:23,810 INFO L208 MainTranslator]: Completed translation [2022-07-12 15:21:23,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:21:23 WrapperNode [2022-07-12 15:21:23,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 15:21:23,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 15:21:23,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 15:21:23,812 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 15:21:23,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:21:23" (1/1) ... [2022-07-12 15:21:23,927 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:21:23" (1/1) ... [2022-07-12 15:21:24,085 INFO L137 Inliner]: procedures = 465, calls = 2209, calls flagged for inlining = 206, calls inlined = 184, statements flattened = 4937 [2022-07-12 15:21:24,087 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 15:21:24,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 15:21:24,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 15:21:24,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 15:21:24,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:21:23" (1/1) ... [2022-07-12 15:21:24,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:21:23" (1/1) ... [2022-07-12 15:21:24,138 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:21:23" (1/1) ... [2022-07-12 15:21:24,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:21:23" (1/1) ... [2022-07-12 15:21:24,239 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:21:23" (1/1) ... [2022-07-12 15:21:24,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:21:23" (1/1) ... [2022-07-12 15:21:24,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:21:23" (1/1) ... [2022-07-12 15:21:24,393 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 15:21:24,394 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 15:21:24,394 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 15:21:24,394 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 15:21:24,395 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:21:23" (1/1) ... [2022-07-12 15:21:24,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 15:21:24,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 15:21:24,452 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) [2022-07-12 15:21:24,472 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 [2022-07-12 15:21:24,492 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-12 15:21:24,493 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-12 15:21:24,493 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-12 15:21:24,493 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-12 15:21:24,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 15:21:24,493 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 15:21:24,493 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-12 15:21:24,493 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-12 15:21:24,494 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_count [2022-07-12 15:21:24,494 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_count [2022-07-12 15:21:24,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 15:21:24,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 15:21:24,494 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_status [2022-07-12 15:21:24,494 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_status [2022-07-12 15:21:24,494 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-12 15:21:24,494 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-12 15:21:24,494 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2022-07-12 15:21:24,495 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2022-07-12 15:21:24,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-12 15:21:24,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-12 15:21:24,495 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_ring_debug [2022-07-12 15:21:24,495 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_ring_debug [2022-07-12 15:21:24,496 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-12 15:21:24,496 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-12 15:21:24,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_65 [2022-07-12 15:21:24,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_65 [2022-07-12 15:21:24,496 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-12 15:21:24,496 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-12 15:21:24,496 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_close [2022-07-12 15:21:24,496 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_close [2022-07-12 15:21:24,496 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_irda_resume [2022-07-12 15:21:24,496 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_irda_resume [2022-07-12 15:21:24,497 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-12 15:21:24,497 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-12 15:21:24,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-12 15:21:24,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-12 15:21:24,497 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2022-07-12 15:21:24,497 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2022-07-12 15:21:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-12 15:21:24,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-12 15:21:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_free_ring [2022-07-12 15:21:24,499 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_free_ring [2022-07-12 15:21:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-12 15:21:24,499 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-12 15:21:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 15:21:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2022-07-12 15:21:24,499 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2022-07-12 15:21:24,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 15:21:24,500 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-07-12 15:21:24,500 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-07-12 15:21:24,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 15:21:24,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-12 15:21:24,500 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-12 15:21:24,500 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-12 15:21:24,500 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_tx_timeout [2022-07-12 15:21:24,500 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_tx_timeout [2022-07-12 15:21:24,500 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-12 15:21:24,501 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-12 15:21:24,501 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_destroy_hwif [2022-07-12 15:21:24,501 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_destroy_hwif [2022-07-12 15:21:24,501 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 15:21:24,501 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 15:21:24,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-12 15:21:24,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-12 15:21:24,502 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_stop_hw [2022-07-12 15:21:24,502 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_stop_hw [2022-07-12 15:21:24,502 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 15:21:24,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 15:21:24,502 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_irda_remove [2022-07-12 15:21:24,502 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_irda_remove [2022-07-12 15:21:24,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 15:21:24,502 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 15:21:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-12 15:21:24,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-12 15:21:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-07-12 15:21:24,503 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-07-12 15:21:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_clear_regs [2022-07-12 15:21:24,504 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_clear_regs [2022-07-12 15:21:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-12 15:21:24,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-12 15:21:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-12 15:21:24,504 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-12 15:21:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_start_hw [2022-07-12 15:21:24,505 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_start_hw [2022-07-12 15:21:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-12 15:21:24,505 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-12 15:21:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-12 15:21:24,505 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-12 15:21:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure rd_activate [2022-07-12 15:21:24,505 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_activate [2022-07-12 15:21:24,505 INFO L130 BoogieDeclarations]: Found specification of procedure rd_is_active [2022-07-12 15:21:24,505 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_is_active [2022-07-12 15:21:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-12 15:21:24,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-12 15:21:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 15:21:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-12 15:21:24,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-12 15:21:24,506 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_count [2022-07-12 15:21:24,506 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_count [2022-07-12 15:21:24,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-07-12 15:21:24,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-07-12 15:21:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 15:21:24,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-12 15:21:24,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-12 15:21:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 15:21:24,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 15:21:24,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 15:21:24,511 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-12 15:21:24,511 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_open [2022-07-12 15:21:24,511 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_open [2022-07-12 15:21:24,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-12 15:21:24,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-12 15:21:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 15:21:24,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 15:21:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-12 15:21:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_vlsi_mod_exit_11_2 [2022-07-12 15:21:24,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_vlsi_mod_exit_11_2 [2022-07-12 15:21:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-12 15:21:24,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-12 15:21:24,516 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 15:21:24,517 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 15:21:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-12 15:21:24,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-12 15:21:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_reg_debug [2022-07-12 15:21:24,517 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_reg_debug [2022-07-12 15:21:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-12 15:21:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_set_baud [2022-07-12 15:21:24,517 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_set_baud [2022-07-12 15:21:24,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 15:21:24,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 15:21:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 15:21:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 15:21:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 15:21:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 15:21:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-12 15:21:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 15:21:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 15:21:24,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 15:21:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-12 15:21:24,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-12 15:21:24,518 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-07-12 15:21:24,519 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-07-12 15:21:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2022-07-12 15:21:24,519 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2022-07-12 15:21:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_status [2022-07-12 15:21:24,519 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_status [2022-07-12 15:21:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-12 15:21:24,519 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-12 15:21:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-12 15:21:24,519 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-12 15:21:24,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 15:21:24,520 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 15:21:24,520 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-12 15:21:24,520 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-12 15:21:24,520 INFO L130 BoogieDeclarations]: Found specification of procedure ring_get [2022-07-12 15:21:24,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_get [2022-07-12 15:21:24,520 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-12 15:21:24,520 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-12 15:21:24,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 15:21:24,520 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-12 15:21:24,520 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-12 15:21:24,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 15:21:24,521 INFO L130 BoogieDeclarations]: Found specification of procedure ring_last [2022-07-12 15:21:24,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_last [2022-07-12 15:21:24,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 15:21:24,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 15:21:24,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 15:21:24,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 15:21:24,521 INFO L130 BoogieDeclarations]: Found specification of procedure ring_put [2022-07-12 15:21:24,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_put [2022-07-12 15:21:24,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 15:21:24,521 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-07-12 15:21:24,522 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-07-12 15:21:24,522 INFO L130 BoogieDeclarations]: Found specification of procedure do_gettimeofday [2022-07-12 15:21:24,522 INFO L138 BoogieDeclarations]: Found implementation of procedure do_gettimeofday [2022-07-12 15:21:24,522 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-07-12 15:21:24,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-07-12 15:21:24,522 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-07-12 15:21:24,522 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-07-12 15:21:24,522 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-12 15:21:24,522 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-12 15:21:24,522 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-12 15:21:24,523 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-12 15:21:24,523 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-12 15:21:24,523 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-12 15:21:24,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-12 15:21:24,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-12 15:21:24,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-07-12 15:21:24,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-07-12 15:21:24,523 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_addr_status [2022-07-12 15:21:24,523 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_addr_status [2022-07-12 15:21:24,523 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_addr [2022-07-12 15:21:24,524 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_addr [2022-07-12 15:21:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-12 15:21:24,524 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-12 15:21:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-12 15:21:24,524 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-12 15:21:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-12 15:21:24,524 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-12 15:21:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 15:21:24,524 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 15:21:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-12 15:21:24,524 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-07-12 15:21:24,525 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-07-12 15:21:24,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-12 15:21:24,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 15:21:24,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-12 15:21:24,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 15:21:24,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 15:21:24,525 INFO L130 BoogieDeclarations]: Found specification of procedure irlap_close [2022-07-12 15:21:24,525 INFO L138 BoogieDeclarations]: Found implementation of procedure irlap_close [2022-07-12 15:21:24,525 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-12 15:21:24,525 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-12 15:21:24,526 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-12 15:21:24,526 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-12 15:21:24,526 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_process_tx [2022-07-12 15:21:24,526 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_process_tx [2022-07-12 15:21:24,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-12 15:21:24,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-12 15:21:24,526 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_alloc_ring [2022-07-12 15:21:24,526 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_alloc_ring [2022-07-12 15:21:24,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_vlsi_irda_dev [2022-07-12 15:21:24,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_vlsi_irda_dev [2022-07-12 15:21:24,527 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_fill_rx [2022-07-12 15:21:24,527 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_fill_rx [2022-07-12 15:21:24,527 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-12 15:21:24,527 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-12 15:21:24,527 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_process_rx [2022-07-12 15:21:24,527 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_process_rx [2022-07-12 15:21:24,528 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-12 15:21:24,530 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-12 15:21:24,530 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-07-12 15:21:24,530 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-07-12 15:21:24,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-12 15:21:24,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-12 15:21:24,530 INFO L130 BoogieDeclarations]: Found specification of procedure ring_first [2022-07-12 15:21:24,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_first [2022-07-12 15:21:24,530 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-07-12 15:21:24,531 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-07-12 15:21:25,095 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 15:21:25,097 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 15:21:26,730 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 15:21:44,633 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-12 15:21:44,667 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 15:21:44,679 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 15:21:44,679 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 15:21:44,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 03:21:44 BoogieIcfgContainer [2022-07-12 15:21:44,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 15:21:44,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 15:21:44,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 15:21:44,685 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 15:21:44,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 03:21:21" (1/3) ... [2022-07-12 15:21:44,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@545004e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 03:21:44, skipping insertion in model container [2022-07-12 15:21:44,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:21:23" (2/3) ... [2022-07-12 15:21:44,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@545004e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 03:21:44, skipping insertion in model container [2022-07-12 15:21:44,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 03:21:44" (3/3) ... [2022-07-12 15:21:44,687 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2022-07-12 15:21:44,697 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 15:21:44,697 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-12 15:21:44,759 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 15:21:44,763 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=true, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2c0a7ccc, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4749cf47 [2022-07-12 15:21:44,764 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-12 15:21:44,771 INFO L276 IsEmpty]: Start isEmpty. Operand has 1886 states, 1268 states have (on average 1.2854889589905363) internal successors, (1630), 1294 states have internal predecessors, (1630), 512 states have call successors, (512), 104 states have call predecessors, (512), 103 states have return successors, (505), 502 states have call predecessors, (505), 505 states have call successors, (505) [2022-07-12 15:21:44,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-07-12 15:21:44,785 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:21:44,786 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:21:44,786 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:21:44,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:21:44,790 INFO L85 PathProgramCache]: Analyzing trace with hash -2147203978, now seen corresponding path program 1 times [2022-07-12 15:21:44,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:21:44,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1757421596] [2022-07-12 15:21:44,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:21:44,801 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:21:44,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:21:44,828 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:21:44,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 15:21:45,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:45,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 1593 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:21:45,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:21:45,949 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2022-07-12 15:21:45,951 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:21:45,951 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:21:45,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1757421596] [2022-07-12 15:21:45,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1757421596] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:21:45,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:21:45,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:21:45,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424194153] [2022-07-12 15:21:45,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:21:45,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:21:45,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:21:45,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:21:45,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:21:45,989 INFO L87 Difference]: Start difference. First operand has 1886 states, 1268 states have (on average 1.2854889589905363) internal successors, (1630), 1294 states have internal predecessors, (1630), 512 states have call successors, (512), 104 states have call predecessors, (512), 103 states have return successors, (505), 502 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 15:21:48,131 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 15:21:48,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:21:48,566 INFO L93 Difference]: Finished difference Result 5475 states and 7807 transitions. [2022-07-12 15:21:48,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:21:48,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 149 [2022-07-12 15:21:48,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:21:48,607 INFO L225 Difference]: With dead ends: 5475 [2022-07-12 15:21:48,607 INFO L226 Difference]: Without dead ends: 3605 [2022-07-12 15:21:48,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:21:48,630 INFO L413 NwaCegarLoop]: 3096 mSDtfsCounter, 2484 mSDsluCounter, 2534 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2484 SdHoareTripleChecker+Valid, 5630 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-12 15:21:48,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2484 Valid, 5630 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 26 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-07-12 15:21:48,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3605 states. [2022-07-12 15:21:48,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3605 to 3601. [2022-07-12 15:21:48,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3601 states, 2435 states have (on average 1.2739219712525667) internal successors, (3102), 2484 states have internal predecessors, (3102), 961 states have call successors, (961), 203 states have call predecessors, (961), 202 states have return successors, (957), 951 states have call predecessors, (957), 957 states have call successors, (957) [2022-07-12 15:21:48,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3601 states to 3601 states and 5020 transitions. [2022-07-12 15:21:48,840 INFO L78 Accepts]: Start accepts. Automaton has 3601 states and 5020 transitions. Word has length 149 [2022-07-12 15:21:48,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:21:48,843 INFO L495 AbstractCegarLoop]: Abstraction has 3601 states and 5020 transitions. [2022-07-12 15:21:48,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 15:21:48,844 INFO L276 IsEmpty]: Start isEmpty. Operand 3601 states and 5020 transitions. [2022-07-12 15:21:48,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-07-12 15:21:48,854 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:21:48,855 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:21:48,879 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-12 15:21:49,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:21:49,075 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:21:49,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:21:49,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1243014584, now seen corresponding path program 1 times [2022-07-12 15:21:49,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:21:49,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2131481328] [2022-07-12 15:21:49,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:21:49,079 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:21:49,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:21:49,080 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:21:49,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 15:21:50,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:50,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 1626 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:21:50,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:21:50,153 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2022-07-12 15:21:50,153 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:21:50,153 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:21:50,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2131481328] [2022-07-12 15:21:50,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2131481328] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:21:50,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:21:50,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:21:50,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795800749] [2022-07-12 15:21:50,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:21:50,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:21:50,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:21:50,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:21:50,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:21:50,156 INFO L87 Difference]: Start difference. First operand 3601 states and 5020 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 15:21:52,267 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 15:21:52,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:21:52,624 INFO L93 Difference]: Finished difference Result 10433 states and 14518 transitions. [2022-07-12 15:21:52,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:21:52,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 150 [2022-07-12 15:21:52,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:21:52,664 INFO L225 Difference]: With dead ends: 10433 [2022-07-12 15:21:52,664 INFO L226 Difference]: Without dead ends: 6859 [2022-07-12 15:21:52,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:21:52,679 INFO L413 NwaCegarLoop]: 3308 mSDtfsCounter, 2374 mSDsluCounter, 2538 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2374 SdHoareTripleChecker+Valid, 5846 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-12 15:21:52,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2374 Valid, 5846 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 14 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-07-12 15:21:52,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6859 states. [2022-07-12 15:21:52,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6859 to 6829. [2022-07-12 15:21:52,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6829 states, 4632 states have (on average 1.270509499136442) internal successors, (5885), 4730 states have internal predecessors, (5885), 1797 states have call successors, (1797), 402 states have call predecessors, (1797), 397 states have return successors, (1807), 1768 states have call predecessors, (1807), 1793 states have call successors, (1807) [2022-07-12 15:21:52,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6829 states to 6829 states and 9489 transitions. [2022-07-12 15:21:52,884 INFO L78 Accepts]: Start accepts. Automaton has 6829 states and 9489 transitions. Word has length 150 [2022-07-12 15:21:52,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:21:52,886 INFO L495 AbstractCegarLoop]: Abstraction has 6829 states and 9489 transitions. [2022-07-12 15:21:52,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 15:21:52,887 INFO L276 IsEmpty]: Start isEmpty. Operand 6829 states and 9489 transitions. [2022-07-12 15:21:52,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-07-12 15:21:52,889 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:21:52,890 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:21:52,923 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-07-12 15:21:53,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:21:53,103 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:21:53,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:21:53,104 INFO L85 PathProgramCache]: Analyzing trace with hash 645334117, now seen corresponding path program 1 times [2022-07-12 15:21:53,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:21:53,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1107646543] [2022-07-12 15:21:53,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:21:53,105 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:21:53,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:21:53,108 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:21:53,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 15:21:54,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:54,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 1644 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:21:54,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:21:54,262 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2022-07-12 15:21:54,262 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:21:54,262 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:21:54,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1107646543] [2022-07-12 15:21:54,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1107646543] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:21:54,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:21:54,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:21:54,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948856171] [2022-07-12 15:21:54,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:21:54,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:21:54,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:21:54,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:21:54,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:21:54,264 INFO L87 Difference]: Start difference. First operand 6829 states and 9489 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-12 15:21:56,382 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 15:21:56,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:21:56,750 INFO L93 Difference]: Finished difference Result 19759 states and 27353 transitions. [2022-07-12 15:21:56,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:21:56,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 158 [2022-07-12 15:21:56,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:21:56,828 INFO L225 Difference]: With dead ends: 19759 [2022-07-12 15:21:56,828 INFO L226 Difference]: Without dead ends: 12957 [2022-07-12 15:21:56,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:21:56,865 INFO L413 NwaCegarLoop]: 3059 mSDtfsCounter, 2316 mSDsluCounter, 2549 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2316 SdHoareTripleChecker+Valid, 5608 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-12 15:21:56,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2316 Valid, 5608 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 29 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-07-12 15:21:56,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12957 states. [2022-07-12 15:21:57,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12957 to 12925. [2022-07-12 15:21:57,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12925 states, 8776 states have (on average 1.2640154968094803) internal successors, (11093), 8950 states have internal predecessors, (11093), 3359 states have call successors, (3359), 796 states have call predecessors, (3359), 787 states have return successors, (3389), 3296 states have call predecessors, (3389), 3355 states have call successors, (3389) [2022-07-12 15:21:57,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12925 states to 12925 states and 17841 transitions. [2022-07-12 15:21:57,452 INFO L78 Accepts]: Start accepts. Automaton has 12925 states and 17841 transitions. Word has length 158 [2022-07-12 15:21:57,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:21:57,452 INFO L495 AbstractCegarLoop]: Abstraction has 12925 states and 17841 transitions. [2022-07-12 15:21:57,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-12 15:21:57,453 INFO L276 IsEmpty]: Start isEmpty. Operand 12925 states and 17841 transitions. [2022-07-12 15:21:57,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-07-12 15:21:57,457 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:21:57,458 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:21:57,508 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-07-12 15:21:57,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:21:57,708 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:21:57,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:21:57,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1178511947, now seen corresponding path program 1 times [2022-07-12 15:21:57,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:21:57,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1633012446] [2022-07-12 15:21:57,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:21:57,712 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:21:57,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:21:57,713 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:21:57,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 15:21:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:58,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 1891 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:21:58,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:21:58,861 INFO L134 CoverageAnalysis]: Checked inductivity of 538 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2022-07-12 15:21:58,861 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:21:58,861 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:21:58,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1633012446] [2022-07-12 15:21:58,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1633012446] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:21:58,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:21:58,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:21:58,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654262912] [2022-07-12 15:21:58,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:21:58,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:21:58,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:21:58,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:21:58,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:21:58,863 INFO L87 Difference]: Start difference. First operand 12925 states and 17841 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-07-12 15:22:00,972 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 15:22:01,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:22:01,450 INFO L93 Difference]: Finished difference Result 23181 states and 31975 transitions. [2022-07-12 15:22:01,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:22:01,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 212 [2022-07-12 15:22:01,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:22:01,506 INFO L225 Difference]: With dead ends: 23181 [2022-07-12 15:22:01,507 INFO L226 Difference]: Without dead ends: 10283 [2022-07-12 15:22:01,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:22:01,554 INFO L413 NwaCegarLoop]: 3450 mSDtfsCounter, 1646 mSDsluCounter, 2539 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1646 SdHoareTripleChecker+Valid, 5989 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-12 15:22:01,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1646 Valid, 5989 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 66 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-07-12 15:22:01,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10283 states. [2022-07-12 15:22:01,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10283 to 10251. [2022-07-12 15:22:01,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10251 states, 6991 states have (on average 1.265913317122014) internal successors, (8850), 7140 states have internal predecessors, (8850), 2594 states have call successors, (2594), 672 states have call predecessors, (2594), 663 states have return successors, (2607), 2534 states have call predecessors, (2607), 2590 states have call successors, (2607) [2022-07-12 15:22:01,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10251 states to 10251 states and 14051 transitions. [2022-07-12 15:22:01,952 INFO L78 Accepts]: Start accepts. Automaton has 10251 states and 14051 transitions. Word has length 212 [2022-07-12 15:22:01,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:22:01,953 INFO L495 AbstractCegarLoop]: Abstraction has 10251 states and 14051 transitions. [2022-07-12 15:22:01,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-07-12 15:22:01,953 INFO L276 IsEmpty]: Start isEmpty. Operand 10251 states and 14051 transitions. [2022-07-12 15:22:01,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-07-12 15:22:01,956 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:22:01,956 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2022-07-12 15:22:01,999 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-07-12 15:22:02,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:22:02,183 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:22:02,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:22:02,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1257416363, now seen corresponding path program 1 times [2022-07-12 15:22:02,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:22:02,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1105114300] [2022-07-12 15:22:02,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:22:02,185 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:22:02,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:22:02,196 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:22:02,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-12 15:22:03,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:22:03,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 1667 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:22:03,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:22:03,994 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 535 trivial. 0 not checked. [2022-07-12 15:22:03,995 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:22:03,995 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:22:03,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1105114300] [2022-07-12 15:22:03,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1105114300] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:22:03,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:22:03,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 15:22:03,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806610360] [2022-07-12 15:22:03,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:22:03,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:22:03,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:22:03,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:22:03,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:22:03,997 INFO L87 Difference]: Start difference. First operand 10251 states and 14051 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-12 15:22:04,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:22:04,358 INFO L93 Difference]: Finished difference Result 29634 states and 40666 transitions. [2022-07-12 15:22:04,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:22:04,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 198 [2022-07-12 15:22:04,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:22:04,437 INFO L225 Difference]: With dead ends: 29634 [2022-07-12 15:22:04,438 INFO L226 Difference]: Without dead ends: 19570 [2022-07-12 15:22:04,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:22:04,472 INFO L413 NwaCegarLoop]: 3098 mSDtfsCounter, 2400 mSDsluCounter, 2566 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2400 SdHoareTripleChecker+Valid, 5664 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:22:04,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2400 Valid, 5664 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:22:04,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19570 states. [2022-07-12 15:22:05,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19570 to 19544. [2022-07-12 15:22:05,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19544 states, 13375 states have (on average 1.2657196261682242) internal successors, (16929), 13667 states have internal predecessors, (16929), 4878 states have call successors, (4878), 1317 states have call predecessors, (4878), 1288 states have return successors, (4936), 4741 states have call predecessors, (4936), 4874 states have call successors, (4936) [2022-07-12 15:22:05,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19544 states to 19544 states and 26743 transitions. [2022-07-12 15:22:05,229 INFO L78 Accepts]: Start accepts. Automaton has 19544 states and 26743 transitions. Word has length 198 [2022-07-12 15:22:05,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:22:05,230 INFO L495 AbstractCegarLoop]: Abstraction has 19544 states and 26743 transitions. [2022-07-12 15:22:05,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-12 15:22:05,230 INFO L276 IsEmpty]: Start isEmpty. Operand 19544 states and 26743 transitions. [2022-07-12 15:22:05,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-07-12 15:22:05,233 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:22:05,233 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:22:05,276 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-12 15:22:05,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:22:05,447 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:22:05,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:22:05,448 INFO L85 PathProgramCache]: Analyzing trace with hash -882447260, now seen corresponding path program 1 times [2022-07-12 15:22:05,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:22:05,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1986947157] [2022-07-12 15:22:05,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:22:05,449 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:22:05,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:22:05,451 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:22:05,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-12 15:22:06,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:22:06,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 1755 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:22:06,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:22:06,520 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 232 proven. 0 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2022-07-12 15:22:06,521 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:22:06,521 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:22:06,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1986947157] [2022-07-12 15:22:06,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1986947157] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:22:06,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:22:06,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:22:06,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418409542] [2022-07-12 15:22:06,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:22:06,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:22:06,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:22:06,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:22:06,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:22:06,524 INFO L87 Difference]: Start difference. First operand 19544 states and 26743 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-12 15:22:07,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:22:07,209 INFO L93 Difference]: Finished difference Result 39125 states and 53603 transitions. [2022-07-12 15:22:07,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:22:07,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 221 [2022-07-12 15:22:07,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:22:07,283 INFO L225 Difference]: With dead ends: 39125 [2022-07-12 15:22:07,284 INFO L226 Difference]: Without dead ends: 19768 [2022-07-12 15:22:07,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:22:07,325 INFO L413 NwaCegarLoop]: 2600 mSDtfsCounter, 18 mSDsluCounter, 2595 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 5195 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 15:22:07,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 5195 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 15:22:07,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19768 states. [2022-07-12 15:22:07,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19768 to 19720. [2022-07-12 15:22:07,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19720 states, 13535 states have (on average 1.2696712227558182) internal successors, (17185), 13827 states have internal predecessors, (17185), 4894 states have call successors, (4894), 1317 states have call predecessors, (4894), 1288 states have return successors, (4952), 4757 states have call predecessors, (4952), 4890 states have call successors, (4952) [2022-07-12 15:22:07,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19720 states to 19720 states and 27031 transitions. [2022-07-12 15:22:07,884 INFO L78 Accepts]: Start accepts. Automaton has 19720 states and 27031 transitions. Word has length 221 [2022-07-12 15:22:07,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:22:07,885 INFO L495 AbstractCegarLoop]: Abstraction has 19720 states and 27031 transitions. [2022-07-12 15:22:07,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-12 15:22:07,885 INFO L276 IsEmpty]: Start isEmpty. Operand 19720 states and 27031 transitions. [2022-07-12 15:22:07,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-07-12 15:22:07,888 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:22:07,888 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:22:07,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-12 15:22:08,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:22:08,103 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:22:08,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:22:08,104 INFO L85 PathProgramCache]: Analyzing trace with hash -202137699, now seen corresponding path program 1 times [2022-07-12 15:22:08,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:22:08,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [678453116] [2022-07-12 15:22:08,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:22:08,105 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:22:08,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:22:08,116 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:22:08,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-12 15:22:09,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:22:09,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 1759 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 15:22:09,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:22:09,370 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 232 proven. 1 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2022-07-12 15:22:09,370 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:22:09,545 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-07-12 15:22:09,545 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:22:09,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [678453116] [2022-07-12 15:22:09,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [678453116] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 15:22:09,546 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 15:22:09,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-12 15:22:09,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516916815] [2022-07-12 15:22:09,546 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 15:22:09,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 15:22:09,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:22:09,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 15:22:09,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:22:09,547 INFO L87 Difference]: Start difference. First operand 19720 states and 27031 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-12 15:22:10,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:22:10,224 INFO L93 Difference]: Finished difference Result 39525 states and 54227 transitions. [2022-07-12 15:22:10,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:22:10,224 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 225 [2022-07-12 15:22:10,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:22:10,302 INFO L225 Difference]: With dead ends: 39525 [2022-07-12 15:22:10,302 INFO L226 Difference]: Without dead ends: 19992 [2022-07-12 15:22:10,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 444 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-12 15:22:10,362 INFO L413 NwaCegarLoop]: 2611 mSDtfsCounter, 102 mSDsluCounter, 5190 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 7801 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 15:22:10,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 7801 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 15:22:10,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19992 states. [2022-07-12 15:22:10,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19992 to 19944. [2022-07-12 15:22:10,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19944 states, 13743 states have (on average 1.2725751291566616) internal successors, (17489), 14035 states have internal predecessors, (17489), 4910 states have call successors, (4910), 1317 states have call predecessors, (4910), 1288 states have return successors, (4968), 4773 states have call predecessors, (4968), 4906 states have call successors, (4968) [2022-07-12 15:22:10,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19944 states to 19944 states and 27367 transitions. [2022-07-12 15:22:10,901 INFO L78 Accepts]: Start accepts. Automaton has 19944 states and 27367 transitions. Word has length 225 [2022-07-12 15:22:10,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:22:10,901 INFO L495 AbstractCegarLoop]: Abstraction has 19944 states and 27367 transitions. [2022-07-12 15:22:10,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-12 15:22:10,902 INFO L276 IsEmpty]: Start isEmpty. Operand 19944 states and 27367 transitions. [2022-07-12 15:22:10,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-07-12 15:22:10,904 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:22:10,905 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:22:11,025 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-07-12 15:22:11,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:22:11,220 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:22:11,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:22:11,220 INFO L85 PathProgramCache]: Analyzing trace with hash -737014186, now seen corresponding path program 2 times [2022-07-12 15:22:11,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:22:11,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [12522664] [2022-07-12 15:22:11,222 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-12 15:22:11,222 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:22:11,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:22:11,224 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:22:11,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-12 15:22:12,035 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-12 15:22:12,036 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-12 15:22:12,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 1347 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:22:12,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:22:13,367 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 796 trivial. 0 not checked. [2022-07-12 15:22:13,367 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:22:13,367 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:22:13,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [12522664] [2022-07-12 15:22:13,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [12522664] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:22:13,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:22:13,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:22:13,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617470742] [2022-07-12 15:22:13,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:22:13,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:22:13,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:22:13,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:22:13,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:22:13,368 INFO L87 Difference]: Start difference. First operand 19944 states and 27367 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-07-12 15:22:13,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:22:13,705 INFO L93 Difference]: Finished difference Result 19950 states and 27372 transitions. [2022-07-12 15:22:13,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:22:13,705 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 229 [2022-07-12 15:22:13,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:22:13,844 INFO L225 Difference]: With dead ends: 19950 [2022-07-12 15:22:13,844 INFO L226 Difference]: Without dead ends: 19948 [2022-07-12 15:22:13,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:22:13,848 INFO L413 NwaCegarLoop]: 2605 mSDtfsCounter, 2509 mSDsluCounter, 5197 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2510 SdHoareTripleChecker+Valid, 7802 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:22:13,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2510 Valid, 7802 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:22:13,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19948 states. [2022-07-12 15:22:14,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19948 to 19948. [2022-07-12 15:22:14,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19948 states, 13746 states have (on average 1.2725156409137204) internal successors, (17492), 14038 states have internal predecessors, (17492), 4910 states have call successors, (4910), 1318 states have call predecessors, (4910), 1289 states have return successors, (4968), 4773 states have call predecessors, (4968), 4906 states have call successors, (4968) [2022-07-12 15:22:14,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19948 states to 19948 states and 27370 transitions. [2022-07-12 15:22:14,331 INFO L78 Accepts]: Start accepts. Automaton has 19948 states and 27370 transitions. Word has length 229 [2022-07-12 15:22:14,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:22:14,332 INFO L495 AbstractCegarLoop]: Abstraction has 19948 states and 27370 transitions. [2022-07-12 15:22:14,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-07-12 15:22:14,332 INFO L276 IsEmpty]: Start isEmpty. Operand 19948 states and 27370 transitions. [2022-07-12 15:22:14,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-07-12 15:22:14,336 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:22:14,336 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:22:14,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-12 15:22:14,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:22:14,554 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:22:14,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:22:14,554 INFO L85 PathProgramCache]: Analyzing trace with hash 742204719, now seen corresponding path program 1 times [2022-07-12 15:22:14,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:22:14,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1894869579] [2022-07-12 15:22:14,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:22:14,556 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:22:14,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:22:14,558 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:22:14,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-12 15:22:15,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:22:15,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 1770 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:22:15,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:22:15,667 INFO L134 CoverageAnalysis]: Checked inductivity of 798 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 731 trivial. 0 not checked. [2022-07-12 15:22:15,667 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:22:15,667 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:22:15,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1894869579] [2022-07-12 15:22:15,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1894869579] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:22:15,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:22:15,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:22:15,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379060789] [2022-07-12 15:22:15,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:22:15,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:22:15,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:22:15,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:22:15,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:22:15,669 INFO L87 Difference]: Start difference. First operand 19948 states and 27370 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-12 15:22:17,789 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 15:22:18,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:22:18,578 INFO L93 Difference]: Finished difference Result 57348 states and 78700 transitions. [2022-07-12 15:22:18,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:22:18,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 234 [2022-07-12 15:22:18,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:22:18,708 INFO L225 Difference]: With dead ends: 57348 [2022-07-12 15:22:18,708 INFO L226 Difference]: Without dead ends: 37587 [2022-07-12 15:22:18,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:22:18,778 INFO L413 NwaCegarLoop]: 3315 mSDtfsCounter, 2406 mSDsluCounter, 2581 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2406 SdHoareTripleChecker+Valid, 5896 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-12 15:22:18,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2406 Valid, 5896 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-07-12 15:22:18,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37587 states. [2022-07-12 15:22:19,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37587 to 37583. [2022-07-12 15:22:19,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37583 states, 25825 states have (on average 1.2683446272991288) internal successors, (32755), 26327 states have internal predecessors, (32755), 9312 states have call successors, (9312), 2492 states have call predecessors, (9312), 2443 states have return successors, (9432), 9103 states have call predecessors, (9432), 9308 states have call successors, (9432) [2022-07-12 15:22:19,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37583 states to 37583 states and 51499 transitions. [2022-07-12 15:22:19,804 INFO L78 Accepts]: Start accepts. Automaton has 37583 states and 51499 transitions. Word has length 234 [2022-07-12 15:22:19,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:22:19,804 INFO L495 AbstractCegarLoop]: Abstraction has 37583 states and 51499 transitions. [2022-07-12 15:22:19,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-12 15:22:19,805 INFO L276 IsEmpty]: Start isEmpty. Operand 37583 states and 51499 transitions. [2022-07-12 15:22:19,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-07-12 15:22:19,808 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:22:19,808 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:22:19,830 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-12 15:22:20,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:22:20,030 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:22:20,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:22:20,030 INFO L85 PathProgramCache]: Analyzing trace with hash 764836973, now seen corresponding path program 1 times [2022-07-12 15:22:20,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:22:20,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [302433814] [2022-07-12 15:22:20,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:22:20,032 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:22:20,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:22:20,040 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:22:20,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-12 15:22:20,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:22:21,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 1770 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:22:21,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:22:22,381 INFO L134 CoverageAnalysis]: Checked inductivity of 798 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 796 trivial. 0 not checked. [2022-07-12 15:22:22,381 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:22:23,012 INFO L134 CoverageAnalysis]: Checked inductivity of 798 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 796 trivial. 0 not checked. [2022-07-12 15:22:23,012 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:22:23,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [302433814] [2022-07-12 15:22:23,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [302433814] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:22:23,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:22:23,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:22:23,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260891624] [2022-07-12 15:22:23,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:22:23,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:22:23,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:22:23,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:22:23,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:22:23,014 INFO L87 Difference]: Start difference. First operand 37583 states and 51499 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-12 15:22:24,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:22:24,055 INFO L93 Difference]: Finished difference Result 37589 states and 51504 transitions. [2022-07-12 15:22:24,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:22:24,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 234 [2022-07-12 15:22:24,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:22:24,199 INFO L225 Difference]: With dead ends: 37589 [2022-07-12 15:22:24,200 INFO L226 Difference]: Without dead ends: 37587 [2022-07-12 15:22:24,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 461 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:22:24,225 INFO L413 NwaCegarLoop]: 2608 mSDtfsCounter, 2529 mSDsluCounter, 5196 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2540 SdHoareTripleChecker+Valid, 7804 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:22:24,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2540 Valid, 7804 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:22:24,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37587 states. [2022-07-12 15:22:25,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37587 to 37587. [2022-07-12 15:22:25,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37587 states, 25828 states have (on average 1.268313458262351) internal successors, (32758), 26330 states have internal predecessors, (32758), 9312 states have call successors, (9312), 2493 states have call predecessors, (9312), 2444 states have return successors, (9432), 9103 states have call predecessors, (9432), 9308 states have call successors, (9432) [2022-07-12 15:22:25,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37587 states to 37587 states and 51502 transitions. [2022-07-12 15:22:25,390 INFO L78 Accepts]: Start accepts. Automaton has 37587 states and 51502 transitions. Word has length 234 [2022-07-12 15:22:25,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:22:25,391 INFO L495 AbstractCegarLoop]: Abstraction has 37587 states and 51502 transitions. [2022-07-12 15:22:25,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-12 15:22:25,391 INFO L276 IsEmpty]: Start isEmpty. Operand 37587 states and 51502 transitions. [2022-07-12 15:22:25,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-07-12 15:22:25,395 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:22:25,395 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:22:25,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-12 15:22:25,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:22:25,630 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:22:25,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:22:25,630 INFO L85 PathProgramCache]: Analyzing trace with hash 27919672, now seen corresponding path program 1 times [2022-07-12 15:22:25,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:22:25,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1579747141] [2022-07-12 15:22:25,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:22:25,631 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:22:25,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:22:25,633 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:22:25,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-12 15:22:26,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:22:26,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 1777 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:22:26,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:22:27,950 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2022-07-12 15:22:27,950 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:22:28,588 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2022-07-12 15:22:28,589 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:22:28,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1579747141] [2022-07-12 15:22:28,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1579747141] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:22:28,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:22:28,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:22:28,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179695469] [2022-07-12 15:22:28,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:22:28,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:22:28,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:22:28,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:22:28,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:22:28,591 INFO L87 Difference]: Start difference. First operand 37587 states and 51502 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-12 15:22:29,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:22:29,455 INFO L93 Difference]: Finished difference Result 37593 states and 51507 transitions. [2022-07-12 15:22:29,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:22:29,455 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 239 [2022-07-12 15:22:29,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:22:29,567 INFO L225 Difference]: With dead ends: 37593 [2022-07-12 15:22:29,567 INFO L226 Difference]: Without dead ends: 37591 [2022-07-12 15:22:29,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 471 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:22:29,586 INFO L413 NwaCegarLoop]: 2608 mSDtfsCounter, 2529 mSDsluCounter, 5196 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2539 SdHoareTripleChecker+Valid, 7804 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:22:29,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2539 Valid, 7804 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:22:29,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37591 states. [2022-07-12 15:22:30,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37591 to 37591. [2022-07-12 15:22:30,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37591 states, 25831 states have (on average 1.2682822964654872) internal successors, (32761), 26333 states have internal predecessors, (32761), 9312 states have call successors, (9312), 2494 states have call predecessors, (9312), 2445 states have return successors, (9432), 9103 states have call predecessors, (9432), 9308 states have call successors, (9432) [2022-07-12 15:22:30,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37591 states to 37591 states and 51505 transitions. [2022-07-12 15:22:30,665 INFO L78 Accepts]: Start accepts. Automaton has 37591 states and 51505 transitions. Word has length 239 [2022-07-12 15:22:30,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:22:30,666 INFO L495 AbstractCegarLoop]: Abstraction has 37591 states and 51505 transitions. [2022-07-12 15:22:30,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-12 15:22:30,666 INFO L276 IsEmpty]: Start isEmpty. Operand 37591 states and 51505 transitions. [2022-07-12 15:22:30,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-07-12 15:22:30,670 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:22:30,670 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 5, 5, 5, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:22:30,709 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-07-12 15:22:30,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:22:30,883 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:22:30,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:22:30,884 INFO L85 PathProgramCache]: Analyzing trace with hash -797327161, now seen corresponding path program 1 times [2022-07-12 15:22:30,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:22:30,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2023522272] [2022-07-12 15:22:30,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:22:30,885 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:22:30,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:22:30,886 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:22:30,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-12 15:22:32,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:22:32,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 1833 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:22:32,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:22:32,243 INFO L134 CoverageAnalysis]: Checked inductivity of 826 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 751 trivial. 0 not checked. [2022-07-12 15:22:32,243 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:22:32,243 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:22:32,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2023522272] [2022-07-12 15:22:32,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2023522272] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:22:32,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:22:32,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:22:32,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132179799] [2022-07-12 15:22:32,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:22:32,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:22:32,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:22:32,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:22:32,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:22:32,245 INFO L87 Difference]: Start difference. First operand 37591 states and 51505 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-07-12 15:22:34,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 15:22:36,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:22:36,283 INFO L93 Difference]: Finished difference Result 92681 states and 127041 transitions. [2022-07-12 15:22:36,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:22:36,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 257 [2022-07-12 15:22:36,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:22:36,567 INFO L225 Difference]: With dead ends: 92681 [2022-07-12 15:22:36,567 INFO L226 Difference]: Without dead ends: 55277 [2022-07-12 15:22:36,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:22:36,701 INFO L413 NwaCegarLoop]: 5025 mSDtfsCounter, 2438 mSDsluCounter, 2583 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2438 SdHoareTripleChecker+Valid, 7608 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-12 15:22:36,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2438 Valid, 7608 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-07-12 15:22:36,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55277 states. [2022-07-12 15:22:38,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55277 to 55049. [2022-07-12 15:22:38,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55049 states, 37782 states have (on average 1.2669789847017099) internal successors, (47869), 38496 states have internal predecessors, (47869), 13675 states have call successors, (13675), 3658 states have call predecessors, (13675), 3589 states have return successors, (13857), 13392 states have call predecessors, (13857), 13671 states have call successors, (13857) [2022-07-12 15:22:38,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55049 states to 55049 states and 75401 transitions. [2022-07-12 15:22:38,884 INFO L78 Accepts]: Start accepts. Automaton has 55049 states and 75401 transitions. Word has length 257 [2022-07-12 15:22:38,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:22:38,885 INFO L495 AbstractCegarLoop]: Abstraction has 55049 states and 75401 transitions. [2022-07-12 15:22:38,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-07-12 15:22:38,885 INFO L276 IsEmpty]: Start isEmpty. Operand 55049 states and 75401 transitions. [2022-07-12 15:22:38,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-07-12 15:22:38,889 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:22:38,889 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:22:38,925 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-07-12 15:22:39,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:22:39,115 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:22:39,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:22:39,116 INFO L85 PathProgramCache]: Analyzing trace with hash 789601037, now seen corresponding path program 1 times [2022-07-12 15:22:39,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:22:39,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1723081428] [2022-07-12 15:22:39,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:22:39,118 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:22:39,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:22:39,119 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:22:39,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-12 15:22:40,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:22:40,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 1784 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:22:40,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:22:42,125 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 808 trivial. 0 not checked. [2022-07-12 15:22:42,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:22:42,837 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 808 trivial. 0 not checked. [2022-07-12 15:22:42,837 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:22:42,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1723081428] [2022-07-12 15:22:42,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1723081428] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:22:42,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:22:42,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:22:42,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180519244] [2022-07-12 15:22:42,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:22:42,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:22:42,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:22:42,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:22:42,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:22:42,839 INFO L87 Difference]: Start difference. First operand 55049 states and 75401 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-12 15:22:44,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:22:44,107 INFO L93 Difference]: Finished difference Result 55055 states and 75406 transitions. [2022-07-12 15:22:44,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:22:44,107 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 244 [2022-07-12 15:22:44,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:22:44,353 INFO L225 Difference]: With dead ends: 55055 [2022-07-12 15:22:44,353 INFO L226 Difference]: Without dead ends: 55053 [2022-07-12 15:22:44,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 481 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:22:44,387 INFO L413 NwaCegarLoop]: 2608 mSDtfsCounter, 2529 mSDsluCounter, 5196 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2538 SdHoareTripleChecker+Valid, 7804 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:22:44,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2538 Valid, 7804 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:22:44,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55053 states. [2022-07-12 15:22:45,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55053 to 55053. [2022-07-12 15:22:46,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55053 states, 37785 states have (on average 1.266957787481805) internal successors, (47872), 38499 states have internal predecessors, (47872), 13675 states have call successors, (13675), 3659 states have call predecessors, (13675), 3590 states have return successors, (13857), 13392 states have call predecessors, (13857), 13671 states have call successors, (13857) [2022-07-12 15:22:46,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55053 states to 55053 states and 75404 transitions. [2022-07-12 15:22:46,238 INFO L78 Accepts]: Start accepts. Automaton has 55053 states and 75404 transitions. Word has length 244 [2022-07-12 15:22:46,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:22:46,238 INFO L495 AbstractCegarLoop]: Abstraction has 55053 states and 75404 transitions. [2022-07-12 15:22:46,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-12 15:22:46,239 INFO L276 IsEmpty]: Start isEmpty. Operand 55053 states and 75404 transitions. [2022-07-12 15:22:46,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-07-12 15:22:46,242 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:22:46,243 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:22:46,269 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2022-07-12 15:22:46,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:22:46,467 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:22:46,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:22:46,468 INFO L85 PathProgramCache]: Analyzing trace with hash -387155432, now seen corresponding path program 1 times [2022-07-12 15:22:46,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:22:46,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1027354877] [2022-07-12 15:22:46,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:22:46,469 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:22:46,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:22:46,470 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:22:46,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-12 15:22:47,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:22:47,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 1791 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:22:47,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:22:49,106 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 820 trivial. 0 not checked. [2022-07-12 15:22:49,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:22:49,800 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 820 trivial. 0 not checked. [2022-07-12 15:22:49,800 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:22:49,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1027354877] [2022-07-12 15:22:49,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1027354877] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:22:49,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:22:49,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:22:49,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969267159] [2022-07-12 15:22:49,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:22:49,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:22:49,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:22:49,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:22:49,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:22:49,802 INFO L87 Difference]: Start difference. First operand 55053 states and 75404 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-12 15:22:51,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:22:51,380 INFO L93 Difference]: Finished difference Result 55059 states and 75409 transitions. [2022-07-12 15:22:51,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:22:51,380 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 249 [2022-07-12 15:22:51,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:22:51,611 INFO L225 Difference]: With dead ends: 55059 [2022-07-12 15:22:51,611 INFO L226 Difference]: Without dead ends: 55057 [2022-07-12 15:22:51,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 491 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:22:51,641 INFO L413 NwaCegarLoop]: 2608 mSDtfsCounter, 2529 mSDsluCounter, 5196 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2537 SdHoareTripleChecker+Valid, 7804 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:22:51,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2537 Valid, 7804 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:22:51,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55057 states. [2022-07-12 15:22:53,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55057 to 55057. [2022-07-12 15:22:53,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55057 states, 37788 states have (on average 1.2669365936276067) internal successors, (47875), 38502 states have internal predecessors, (47875), 13675 states have call successors, (13675), 3660 states have call predecessors, (13675), 3591 states have return successors, (13857), 13392 states have call predecessors, (13857), 13671 states have call successors, (13857) [2022-07-12 15:22:53,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55057 states to 55057 states and 75407 transitions. [2022-07-12 15:22:53,610 INFO L78 Accepts]: Start accepts. Automaton has 55057 states and 75407 transitions. Word has length 249 [2022-07-12 15:22:53,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:22:53,610 INFO L495 AbstractCegarLoop]: Abstraction has 55057 states and 75407 transitions. [2022-07-12 15:22:53,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-12 15:22:53,611 INFO L276 IsEmpty]: Start isEmpty. Operand 55057 states and 75407 transitions. [2022-07-12 15:22:53,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-07-12 15:22:53,614 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:22:53,615 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 6, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:22:53,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-12 15:22:53,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:22:53,846 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:22:53,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:22:53,846 INFO L85 PathProgramCache]: Analyzing trace with hash -240246355, now seen corresponding path program 1 times [2022-07-12 15:22:53,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:22:53,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1883389026] [2022-07-12 15:22:53,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:22:53,849 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:22:53,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:22:53,851 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:22:53,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-12 15:22:54,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:22:54,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 1798 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:22:54,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:22:56,679 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 836 trivial. 0 not checked. [2022-07-12 15:22:56,680 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:22:57,388 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 836 trivial. 0 not checked. [2022-07-12 15:22:57,388 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:22:57,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1883389026] [2022-07-12 15:22:57,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1883389026] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:22:57,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:22:57,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:22:57,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985405360] [2022-07-12 15:22:57,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:22:57,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:22:57,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:22:57,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:22:57,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:22:57,389 INFO L87 Difference]: Start difference. First operand 55057 states and 75407 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-12 15:22:59,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:22:59,026 INFO L93 Difference]: Finished difference Result 55063 states and 75412 transitions. [2022-07-12 15:22:59,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:22:59,026 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 254 [2022-07-12 15:22:59,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:22:59,237 INFO L225 Difference]: With dead ends: 55063 [2022-07-12 15:22:59,237 INFO L226 Difference]: Without dead ends: 55061 [2022-07-12 15:22:59,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 501 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:22:59,267 INFO L413 NwaCegarLoop]: 2608 mSDtfsCounter, 2529 mSDsluCounter, 5196 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2536 SdHoareTripleChecker+Valid, 7804 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:22:59,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2536 Valid, 7804 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:22:59,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55061 states. [2022-07-12 15:23:00,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55061 to 55061. [2022-07-12 15:23:00,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55061 states, 37791 states have (on average 1.2669154031383134) internal successors, (47878), 38505 states have internal predecessors, (47878), 13675 states have call successors, (13675), 3661 states have call predecessors, (13675), 3592 states have return successors, (13857), 13392 states have call predecessors, (13857), 13671 states have call successors, (13857) [2022-07-12 15:23:01,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55061 states to 55061 states and 75410 transitions. [2022-07-12 15:23:01,171 INFO L78 Accepts]: Start accepts. Automaton has 55061 states and 75410 transitions. Word has length 254 [2022-07-12 15:23:01,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:23:01,171 INFO L495 AbstractCegarLoop]: Abstraction has 55061 states and 75410 transitions. [2022-07-12 15:23:01,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-12 15:23:01,172 INFO L276 IsEmpty]: Start isEmpty. Operand 55061 states and 75410 transitions. [2022-07-12 15:23:01,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-07-12 15:23:01,176 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:23:01,176 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 7, 6, 6, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:23:01,204 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2022-07-12 15:23:01,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:23:01,400 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:23:01,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:23:01,400 INFO L85 PathProgramCache]: Analyzing trace with hash 826017528, now seen corresponding path program 1 times [2022-07-12 15:23:01,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:23:01,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [796539112] [2022-07-12 15:23:01,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:23:01,401 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:23:01,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:23:01,402 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:23:01,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-12 15:23:02,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:23:02,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 1805 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:23:02,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:23:04,078 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 856 trivial. 0 not checked. [2022-07-12 15:23:04,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:23:04,845 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 856 trivial. 0 not checked. [2022-07-12 15:23:04,845 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:23:04,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [796539112] [2022-07-12 15:23:04,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [796539112] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:23:04,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:23:04,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:23:04,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654672333] [2022-07-12 15:23:04,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:23:04,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:23:04,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:23:04,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:23:04,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:23:04,846 INFO L87 Difference]: Start difference. First operand 55061 states and 75410 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-12 15:23:06,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:23:06,464 INFO L93 Difference]: Finished difference Result 55067 states and 75415 transitions. [2022-07-12 15:23:06,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:23:06,464 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 259 [2022-07-12 15:23:06,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:23:06,680 INFO L225 Difference]: With dead ends: 55067 [2022-07-12 15:23:06,680 INFO L226 Difference]: Without dead ends: 55065 [2022-07-12 15:23:06,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 519 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:23:06,718 INFO L413 NwaCegarLoop]: 2608 mSDtfsCounter, 2529 mSDsluCounter, 5196 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2535 SdHoareTripleChecker+Valid, 7804 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:23:06,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2535 Valid, 7804 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:23:06,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55065 states. [2022-07-12 15:23:08,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55065 to 55065. [2022-07-12 15:23:08,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55065 states, 37794 states have (on average 1.2668942160131238) internal successors, (47881), 38508 states have internal predecessors, (47881), 13675 states have call successors, (13675), 3662 states have call predecessors, (13675), 3593 states have return successors, (13857), 13392 states have call predecessors, (13857), 13671 states have call successors, (13857) [2022-07-12 15:23:08,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55065 states to 55065 states and 75413 transitions. [2022-07-12 15:23:08,728 INFO L78 Accepts]: Start accepts. Automaton has 55065 states and 75413 transitions. Word has length 259 [2022-07-12 15:23:08,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:23:08,729 INFO L495 AbstractCegarLoop]: Abstraction has 55065 states and 75413 transitions. [2022-07-12 15:23:08,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-12 15:23:08,730 INFO L276 IsEmpty]: Start isEmpty. Operand 55065 states and 75413 transitions. [2022-07-12 15:23:08,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-07-12 15:23:08,734 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:23:08,734 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 8, 7, 7, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:23:08,758 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-12 15:23:08,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:23:08,943 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:23:08,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:23:08,944 INFO L85 PathProgramCache]: Analyzing trace with hash -408039347, now seen corresponding path program 1 times [2022-07-12 15:23:08,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:23:08,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [824784543] [2022-07-12 15:23:08,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:23:08,945 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:23:08,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:23:08,947 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:23:08,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-12 15:23:10,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:23:10,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 1812 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:23:10,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:23:11,794 INFO L134 CoverageAnalysis]: Checked inductivity of 894 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked. [2022-07-12 15:23:11,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:23:12,531 INFO L134 CoverageAnalysis]: Checked inductivity of 894 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked. [2022-07-12 15:23:12,531 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:23:12,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [824784543] [2022-07-12 15:23:12,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [824784543] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:23:12,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:23:12,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:23:12,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361360680] [2022-07-12 15:23:12,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:23:12,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:23:12,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:23:12,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:23:12,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:23:12,533 INFO L87 Difference]: Start difference. First operand 55065 states and 75413 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-12 15:23:14,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:23:14,452 INFO L93 Difference]: Finished difference Result 62244 states and 83833 transitions. [2022-07-12 15:23:14,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:23:14,453 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 264 [2022-07-12 15:23:14,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:23:14,668 INFO L225 Difference]: With dead ends: 62244 [2022-07-12 15:23:14,668 INFO L226 Difference]: Without dead ends: 62242 [2022-07-12 15:23:14,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 521 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:23:14,700 INFO L413 NwaCegarLoop]: 2949 mSDtfsCounter, 2249 mSDsluCounter, 6625 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2254 SdHoareTripleChecker+Valid, 9574 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:23:14,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2254 Valid, 9574 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:23:14,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62242 states. [2022-07-12 15:23:16,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62242 to 62242. [2022-07-12 15:23:16,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62242 states, 42768 states have (on average 1.260545267489712) internal successors, (53911), 43530 states have internal predecessors, (53911), 14869 states have call successors, (14869), 4671 states have call predecessors, (14869), 4602 states have return successors, (15051), 14586 states have call predecessors, (15051), 14865 states have call successors, (15051) [2022-07-12 15:23:16,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62242 states to 62242 states and 83831 transitions. [2022-07-12 15:23:16,947 INFO L78 Accepts]: Start accepts. Automaton has 62242 states and 83831 transitions. Word has length 264 [2022-07-12 15:23:16,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:23:16,948 INFO L495 AbstractCegarLoop]: Abstraction has 62242 states and 83831 transitions. [2022-07-12 15:23:16,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-12 15:23:16,948 INFO L276 IsEmpty]: Start isEmpty. Operand 62242 states and 83831 transitions. [2022-07-12 15:23:16,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-07-12 15:23:16,953 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:23:16,954 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 9, 8, 8, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:23:16,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-12 15:23:17,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:23:17,168 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:23:17,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:23:17,168 INFO L85 PathProgramCache]: Analyzing trace with hash 521841624, now seen corresponding path program 1 times [2022-07-12 15:23:17,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:23:17,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1711848223] [2022-07-12 15:23:17,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:23:17,170 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:23:17,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:23:17,172 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:23:17,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-12 15:23:18,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:23:18,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 1819 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:23:18,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:23:19,987 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 908 trivial. 0 not checked. [2022-07-12 15:23:19,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:23:20,706 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 908 trivial. 0 not checked. [2022-07-12 15:23:20,707 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:23:20,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1711848223] [2022-07-12 15:23:20,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1711848223] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:23:20,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:23:20,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:23:20,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604985442] [2022-07-12 15:23:20,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:23:20,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:23:20,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:23:20,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:23:20,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:23:20,711 INFO L87 Difference]: Start difference. First operand 62242 states and 83831 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-12 15:23:22,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:23:22,470 INFO L93 Difference]: Finished difference Result 62248 states and 83836 transitions. [2022-07-12 15:23:22,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:23:22,473 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 269 [2022-07-12 15:23:22,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:23:22,707 INFO L225 Difference]: With dead ends: 62248 [2022-07-12 15:23:22,707 INFO L226 Difference]: Without dead ends: 62246 [2022-07-12 15:23:22,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 539 GetRequests, 531 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:23:22,747 INFO L413 NwaCegarLoop]: 2608 mSDtfsCounter, 2529 mSDsluCounter, 5196 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2533 SdHoareTripleChecker+Valid, 7804 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:23:22,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2533 Valid, 7804 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:23:22,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62246 states. [2022-07-12 15:23:24,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62246 to 62246. [2022-07-12 15:23:24,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62246 states, 42771 states have (on average 1.2605269925884361) internal successors, (53914), 43533 states have internal predecessors, (53914), 14869 states have call successors, (14869), 4672 states have call predecessors, (14869), 4603 states have return successors, (15051), 14586 states have call predecessors, (15051), 14865 states have call successors, (15051) [2022-07-12 15:23:25,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62246 states to 62246 states and 83834 transitions. [2022-07-12 15:23:25,134 INFO L78 Accepts]: Start accepts. Automaton has 62246 states and 83834 transitions. Word has length 269 [2022-07-12 15:23:25,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:23:25,135 INFO L495 AbstractCegarLoop]: Abstraction has 62246 states and 83834 transitions. [2022-07-12 15:23:25,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-12 15:23:25,135 INFO L276 IsEmpty]: Start isEmpty. Operand 62246 states and 83834 transitions. [2022-07-12 15:23:25,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-07-12 15:23:25,141 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:23:25,141 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 10, 9, 9, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:23:25,164 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2022-07-12 15:23:25,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:23:25,354 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:23:25,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:23:25,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1305306861, now seen corresponding path program 1 times [2022-07-12 15:23:25,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:23:25,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [435174617] [2022-07-12 15:23:25,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:23:25,356 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:23:25,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:23:25,358 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:23:25,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-07-12 15:23:26,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:23:26,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 1826 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:23:26,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:23:28,193 INFO L134 CoverageAnalysis]: Checked inductivity of 958 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 940 trivial. 0 not checked. [2022-07-12 15:23:28,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:23:29,005 INFO L134 CoverageAnalysis]: Checked inductivity of 958 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 940 trivial. 0 not checked. [2022-07-12 15:23:29,005 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:23:29,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [435174617] [2022-07-12 15:23:29,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [435174617] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:23:29,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:23:29,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:23:29,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765774192] [2022-07-12 15:23:29,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:23:29,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:23:29,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:23:29,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:23:29,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:23:29,007 INFO L87 Difference]: Start difference. First operand 62246 states and 83834 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-12 15:23:30,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:23:30,961 INFO L93 Difference]: Finished difference Result 62252 states and 83839 transitions. [2022-07-12 15:23:30,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:23:30,962 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 274 [2022-07-12 15:23:30,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:23:31,158 INFO L225 Difference]: With dead ends: 62252 [2022-07-12 15:23:31,158 INFO L226 Difference]: Without dead ends: 62250 [2022-07-12 15:23:31,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 541 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:23:31,187 INFO L413 NwaCegarLoop]: 2608 mSDtfsCounter, 2529 mSDsluCounter, 5196 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2532 SdHoareTripleChecker+Valid, 7804 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:23:31,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2532 Valid, 7804 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:23:31,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62250 states. [2022-07-12 15:23:33,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62250 to 62250. [2022-07-12 15:23:33,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62250 states, 42774 states have (on average 1.2605087202506196) internal successors, (53917), 43536 states have internal predecessors, (53917), 14869 states have call successors, (14869), 4673 states have call predecessors, (14869), 4604 states have return successors, (15051), 14586 states have call predecessors, (15051), 14865 states have call successors, (15051) [2022-07-12 15:23:33,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62250 states to 62250 states and 83837 transitions. [2022-07-12 15:23:33,729 INFO L78 Accepts]: Start accepts. Automaton has 62250 states and 83837 transitions. Word has length 274 [2022-07-12 15:23:33,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:23:33,729 INFO L495 AbstractCegarLoop]: Abstraction has 62250 states and 83837 transitions. [2022-07-12 15:23:33,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-12 15:23:33,730 INFO L276 IsEmpty]: Start isEmpty. Operand 62250 states and 83837 transitions. [2022-07-12 15:23:33,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-07-12 15:23:33,737 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:23:33,737 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 11, 10, 10, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:23:33,766 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-07-12 15:23:33,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:23:33,941 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:23:33,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:23:33,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1131779912, now seen corresponding path program 1 times [2022-07-12 15:23:33,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:23:33,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2033460135] [2022-07-12 15:23:33,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:23:33,943 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:23:33,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:23:33,944 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:23:33,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-07-12 15:23:34,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:23:35,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 1833 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:23:35,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:23:36,765 INFO L134 CoverageAnalysis]: Checked inductivity of 996 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 976 trivial. 0 not checked. [2022-07-12 15:23:36,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:23:37,497 INFO L134 CoverageAnalysis]: Checked inductivity of 996 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 976 trivial. 0 not checked. [2022-07-12 15:23:37,498 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:23:37,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2033460135] [2022-07-12 15:23:37,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2033460135] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:23:37,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:23:37,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:23:37,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398985740] [2022-07-12 15:23:37,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:23:37,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:23:37,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:23:37,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:23:37,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:23:37,499 INFO L87 Difference]: Start difference. First operand 62250 states and 83837 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31)