./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-ethernet-qlogic-qla3xxx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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-ethernet-qlogic-qla3xxx.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 5663310b82fa3e5d48c5bcacd13ac8ac886029c41a2f8f3bd2b8442c496a9447 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 02:59:54,689 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 02:59:54,691 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 02:59:54,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 02:59:54,730 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 02:59:54,731 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 02:59:54,736 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 02:59:54,742 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 02:59:54,744 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 02:59:54,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 02:59:54,751 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 02:59:54,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 02:59:54,754 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 02:59:54,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 02:59:54,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 02:59:54,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 02:59:54,760 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 02:59:54,762 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 02:59:54,766 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 02:59:54,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 02:59:54,769 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 02:59:54,772 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 02:59:54,773 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 02:59:54,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 02:59:54,776 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 02:59:54,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 02:59:54,781 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 02:59:54,781 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 02:59:54,782 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 02:59:54,783 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 02:59:54,784 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 02:59:54,784 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 02:59:54,786 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 02:59:54,786 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 02:59:54,787 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 02:59:54,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 02:59:54,788 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 02:59:54,788 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 02:59:54,789 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 02:59:54,789 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 02:59:54,790 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 02:59:54,791 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 02:59:54,792 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 02:59:54,825 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 02:59:54,826 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 02:59:54,826 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 02:59:54,827 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 02:59:54,827 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 02:59:54,828 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 02:59:54,828 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 02:59:54,828 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 02:59:54,829 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 02:59:54,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 02:59:54,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 02:59:54,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 02:59:54,830 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 02:59:54,830 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 02:59:54,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 02:59:54,831 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 02:59:54,831 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 02:59:54,831 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 02:59:54,831 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 02:59:54,832 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 02:59:54,832 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 02:59:54,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 02:59:54,832 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 02:59:54,832 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 02:59:54,833 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 02:59:54,833 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 02:59:54,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 02:59:54,833 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 02:59:54,833 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 02:59:54,834 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 02:59:54,834 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5663310b82fa3e5d48c5bcacd13ac8ac886029c41a2f8f3bd2b8442c496a9447 [2022-07-14 02:59:55,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 02:59:55,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 02:59:55,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 02:59:55,126 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 02:59:55,126 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 02:59:55,128 INFO L432 ainManager$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-ethernet-qlogic-qla3xxx.cil.i [2022-07-14 02:59:55,204 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5e8db309/f06547fb035d488699c8bcdaa210716e/FLAG5891bac75 [2022-07-14 02:59:56,022 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 02:59:56,023 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-ethernet-qlogic-qla3xxx.cil.i [2022-07-14 02:59:56,083 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5e8db309/f06547fb035d488699c8bcdaa210716e/FLAG5891bac75 [2022-07-14 02:59:56,189 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5e8db309/f06547fb035d488699c8bcdaa210716e [2022-07-14 02:59:56,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 02:59:56,193 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 02:59:56,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 02:59:56,194 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 02:59:56,201 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 02:59:56,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:59:56" (1/1) ... [2022-07-14 02:59:56,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d9958f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:59:56, skipping insertion in model container [2022-07-14 02:59:56,203 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:59:56" (1/1) ... [2022-07-14 02:59:56,209 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 02:59:56,338 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 03:00:00,411 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-ethernet-qlogic-qla3xxx.cil.i[408897,408910] [2022-07-14 03:00:00,414 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-ethernet-qlogic-qla3xxx.cil.i[409066,409079] [2022-07-14 03:00:00,415 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-ethernet-qlogic-qla3xxx.cil.i[409233,409246] [2022-07-14 03:00:00,420 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-ethernet-qlogic-qla3xxx.cil.i[409401,409414] [2022-07-14 03:00:00,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 03:00:00,481 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 03:00:00,656 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: reg = (unsigned int )((u16 )((int )reg >> 8)) & 3U [7799] 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) [2022-07-14 03:00:00,666 INFO L158 Benchmark]: Toolchain (without parser) took 4470.62ms. Allocated memory was 113.2MB in the beginning and 165.7MB in the end (delta: 52.4MB). Free memory was 80.9MB in the beginning and 71.7MB in the end (delta: 9.2MB). Peak memory consumption was 72.9MB. Max. memory is 16.1GB. [2022-07-14 03:00:00,667 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 94.4MB. Free memory was 48.6MB in the beginning and 48.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 03:00:00,668 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4468.79ms. Allocated memory was 113.2MB in the beginning and 165.7MB in the end (delta: 52.4MB). Free memory was 80.9MB in the beginning and 71.7MB in the end (delta: 9.2MB). Peak memory consumption was 72.9MB. Max. memory is 16.1GB. [2022-07-14 03:00:00,670 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 94.4MB. Free memory was 48.6MB in the beginning and 48.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4468.79ms. Allocated memory was 113.2MB in the beginning and 165.7MB in the end (delta: 52.4MB). Free memory was 80.9MB in the beginning and 71.7MB in the end (delta: 9.2MB). Peak memory consumption was 72.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: reg = (unsigned int )((u16 )((int )reg >> 8)) & 3U [7799] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: reg = (unsigned int )((u16 )((int )reg >> 8)) & 3U [7799]: 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-ethernet-qlogic-qla3xxx.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 5663310b82fa3e5d48c5bcacd13ac8ac886029c41a2f8f3bd2b8442c496a9447 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 03:00:02,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 03:00:02,619 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 03:00:02,655 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 03:00:02,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 03:00:02,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 03:00:02,662 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 03:00:02,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 03:00:02,668 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 03:00:02,673 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 03:00:02,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 03:00:02,677 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 03:00:02,677 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 03:00:02,680 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 03:00:02,682 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 03:00:02,688 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 03:00:02,689 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 03:00:02,691 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 03:00:02,692 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 03:00:02,697 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 03:00:02,699 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 03:00:02,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 03:00:02,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 03:00:02,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 03:00:02,704 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 03:00:02,710 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 03:00:02,711 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 03:00:02,711 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 03:00:02,712 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 03:00:02,713 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 03:00:02,713 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 03:00:02,714 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 03:00:02,715 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 03:00:02,716 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 03:00:02,717 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 03:00:02,718 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 03:00:02,718 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 03:00:02,719 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 03:00:02,719 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 03:00:02,719 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 03:00:02,720 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 03:00:02,721 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 03:00:02,726 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-14 03:00:02,776 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 03:00:02,777 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 03:00:02,777 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 03:00:02,778 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 03:00:02,778 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 03:00:02,779 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 03:00:02,779 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 03:00:02,780 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 03:00:02,780 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 03:00:02,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 03:00:02,781 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 03:00:02,781 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 03:00:02,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 03:00:02,782 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 03:00:02,782 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 03:00:02,782 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-14 03:00:02,782 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-14 03:00:02,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 03:00:02,783 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 03:00:02,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 03:00:02,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 03:00:02,784 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 03:00:02,784 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 03:00:02,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 03:00:02,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 03:00:02,784 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 03:00:02,785 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 03:00:02,785 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-14 03:00:02,785 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-14 03:00:02,785 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 03:00:02,786 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 03:00:02,786 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 03:00:02,786 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-14 03:00:02,786 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5663310b82fa3e5d48c5bcacd13ac8ac886029c41a2f8f3bd2b8442c496a9447 [2022-07-14 03:00:03,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 03:00:03,178 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 03:00:03,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 03:00:03,182 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 03:00:03,182 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 03:00:03,184 INFO L432 ainManager$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-ethernet-qlogic-qla3xxx.cil.i [2022-07-14 03:00:03,244 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26ad57d5b/0de73a87ef40474a97d208ec826c5cab/FLAG7c8e221d0 [2022-07-14 03:00:04,101 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 03:00:04,102 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-ethernet-qlogic-qla3xxx.cil.i [2022-07-14 03:00:04,164 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26ad57d5b/0de73a87ef40474a97d208ec826c5cab/FLAG7c8e221d0 [2022-07-14 03:00:04,530 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26ad57d5b/0de73a87ef40474a97d208ec826c5cab [2022-07-14 03:00:04,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 03:00:04,535 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 03:00:04,538 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 03:00:04,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 03:00:04,545 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 03:00:04,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:00:04" (1/1) ... [2022-07-14 03:00:04,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6be7c4e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:00:04, skipping insertion in model container [2022-07-14 03:00:04,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:00:04" (1/1) ... [2022-07-14 03:00:04,553 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 03:00:04,718 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 03:00:07,660 WARN L570 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2022-07-14 03:00:07,686 WARN L570 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2022-07-14 03:00:09,340 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-ethernet-qlogic-qla3xxx.cil.i[408897,408910] [2022-07-14 03:00:09,349 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-ethernet-qlogic-qla3xxx.cil.i[409066,409079] [2022-07-14 03:00:09,350 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-ethernet-qlogic-qla3xxx.cil.i[409233,409246] [2022-07-14 03:00:09,350 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-ethernet-qlogic-qla3xxx.cil.i[409401,409414] [2022-07-14 03:00:09,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 03:00:09,444 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-14 03:00:09,523 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 03:00:09,879 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-ethernet-qlogic-qla3xxx.cil.i[408897,408910] [2022-07-14 03:00:09,880 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-ethernet-qlogic-qla3xxx.cil.i[409066,409079] [2022-07-14 03:00:09,881 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-ethernet-qlogic-qla3xxx.cil.i[409233,409246] [2022-07-14 03:00:09,881 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-ethernet-qlogic-qla3xxx.cil.i[409401,409414] [2022-07-14 03:00:09,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 03:00:09,902 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 03:00:10,238 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-ethernet-qlogic-qla3xxx.cil.i[408897,408910] [2022-07-14 03:00:10,239 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-ethernet-qlogic-qla3xxx.cil.i[409066,409079] [2022-07-14 03:00:10,239 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-ethernet-qlogic-qla3xxx.cil.i[409233,409246] [2022-07-14 03:00:10,240 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-ethernet-qlogic-qla3xxx.cil.i[409401,409414] [2022-07-14 03:00:10,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 03:00:10,511 INFO L208 MainTranslator]: Completed translation [2022-07-14 03:00:10,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:00:10 WrapperNode [2022-07-14 03:00:10,512 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 03:00:10,514 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 03:00:10,514 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 03:00:10,514 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 03:00:10,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:00:10" (1/1) ... [2022-07-14 03:00:10,641 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:00:10" (1/1) ... [2022-07-14 03:00:10,890 INFO L137 Inliner]: procedures = 587, calls = 2923, calls flagged for inlining = 287, calls inlined = 255, statements flattened = 6318 [2022-07-14 03:00:10,892 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 03:00:10,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 03:00:10,895 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 03:00:10,895 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 03:00:10,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:00:10" (1/1) ... [2022-07-14 03:00:10,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:00:10" (1/1) ... [2022-07-14 03:00:10,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:00:10" (1/1) ... [2022-07-14 03:00:10,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:00:10" (1/1) ... [2022-07-14 03:00:11,074 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:00:10" (1/1) ... [2022-07-14 03:00:11,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:00:10" (1/1) ... [2022-07-14 03:00:11,214 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:00:10" (1/1) ... [2022-07-14 03:00:11,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 03:00:11,261 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 03:00:11,261 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 03:00:11,261 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 03:00:11,262 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:00:10" (1/1) ... [2022-07-14 03:00:11,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 03:00:11,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 03:00:11,297 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) [2022-07-14 03:00:11,318 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 [2022-07-14 03:00:11,331 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_link_speed [2022-07-14 03:00:11,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_link_speed [2022-07-14 03:00:11,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_hw_lock_of_ql3_adapter [2022-07-14 03:00:11,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_hw_lock_of_ql3_adapter [2022-07-14 03:00:11,332 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-14 03:00:11,332 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-14 03:00:11,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-14 03:00:11,332 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-14 03:00:11,332 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-14 03:00:11,332 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-14 03:00:11,332 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-07-14 03:00:11,333 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-07-14 03:00:11,333 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_close [2022-07-14 03:00:11,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_close [2022-07-14 03:00:11,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 03:00:11,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 03:00:11,333 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-14 03:00:11,334 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-14 03:00:11,334 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2022-07-14 03:00:11,334 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2022-07-14 03:00:11,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-14 03:00:11,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-14 03:00:11,334 INFO L130 BoogieDeclarations]: Found specification of procedure ql_this_adapter_controls_port [2022-07-14 03:00:11,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_this_adapter_controls_port [2022-07-14 03:00:11,335 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_interrupts [2022-07-14 03:00:11,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_interrupts [2022-07-14 03:00:11,335 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-14 03:00:11,335 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-14 03:00:11,335 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-14 03:00:11,336 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-14 03:00:11,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2022-07-14 03:00:11,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2022-07-14 03:00:11,336 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_common_reg_l [2022-07-14 03:00:11,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_common_reg_l [2022-07-14 03:00:11,336 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_send_free_list [2022-07-14 03:00:11,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_send_free_list [2022-07-14 03:00:11,337 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-14 03:00:11,337 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-14 03:00:11,337 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-14 03:00:11,337 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-14 03:00:11,337 INFO L130 BoogieDeclarations]: Found specification of procedure ssleep [2022-07-14 03:00:11,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ssleep [2022-07-14 03:00:11,338 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-07-14 03:00:11,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-07-14 03:00:11,338 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cycle_adapter [2022-07-14 03:00:11,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cycle_adapter [2022-07-14 03:00:11,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-14 03:00:11,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-14 03:00:11,338 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mac_cfg_soft_reset [2022-07-14 03:00:11,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mac_cfg_soft_reset [2022-07-14 03:00:11,339 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-14 03:00:11,339 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-14 03:00:11,339 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-14 03:00:11,339 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-14 03:00:11,339 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_disable_scan_mode [2022-07-14 03:00:11,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_disable_scan_mode [2022-07-14 03:00:11,340 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-14 03:00:11,340 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-14 03:00:11,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-14 03:00:11,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-14 03:00:11,340 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-14 03:00:11,340 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-14 03:00:11,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 03:00:11,341 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-14 03:00:11,341 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-14 03:00:11,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-14 03:00:11,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-14 03:00:11,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-14 03:00:11,341 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_page0_reg_l [2022-07-14 03:00:11,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_page0_reg_l [2022-07-14 03:00:11,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-14 03:00:11,342 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2022-07-14 03:00:11,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2022-07-14 03:00:11,342 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-14 03:00:11,342 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-14 03:00:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-07-14 03:00:11,343 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-07-14 03:00:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-14 03:00:11,343 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-14 03:00:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-14 03:00:11,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-14 03:00:11,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-14 03:00:11,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-14 03:00:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page1_reg [2022-07-14 03:00:11,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page1_reg [2022-07-14 03:00:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-14 03:00:11,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-14 03:00:11,344 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-14 03:00:11,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-14 03:00:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 03:00:11,345 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 03:00:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-14 03:00:11,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-14 03:00:11,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-14 03:00:11,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-14 03:00:11,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-14 03:00:11,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-14 03:00:11,346 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-07-14 03:00:11,346 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-07-14 03:00:11,346 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-14 03:00:11,346 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-14 03:00:11,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_hw_lock_of_ql3_adapter [2022-07-14 03:00:11,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_hw_lock_of_ql3_adapter [2022-07-14 03:00:11,347 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_register_page [2022-07-14 03:00:11,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_register_page [2022-07-14 03:00:11,347 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-14 03:00:11,347 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-14 03:00:11,348 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_read_reg_ex [2022-07-14 03:00:11,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_read_reg_ex [2022-07-14 03:00:11,348 INFO L130 BoogieDeclarations]: Found specification of procedure ql_phy_init_ex [2022-07-14 03:00:11,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_phy_init_ex [2022-07-14 03:00:11,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-14 03:00:11,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-14 03:00:11,349 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_common_reg_l [2022-07-14 03:00:11,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_common_reg_l [2022-07-14 03:00:11,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 03:00:11,349 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_common_reg [2022-07-14 03:00:11,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_common_reg [2022-07-14 03:00:11,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-14 03:00:11,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-14 03:00:11,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-14 03:00:11,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-14 03:00:11,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-07-14 03:00:11,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-07-14 03:00:11,350 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2022-07-14 03:00:11,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2022-07-14 03:00:11,350 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page2_reg [2022-07-14 03:00:11,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page2_reg [2022-07-14 03:00:11,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 03:00:11,351 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_common_reg [2022-07-14 03:00:11,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_common_reg [2022-07-14 03:00:11,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-14 03:00:11,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-14 03:00:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-14 03:00:11,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-14 03:00:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 03:00:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_read_reg [2022-07-14 03:00:11,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_read_reg [2022-07-14 03:00:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-14 03:00:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-14 03:00:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 03:00:11,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 03:00:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-14 03:00:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2022-07-14 03:00:11,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2022-07-14 03:00:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-14 03:00:11,353 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-14 03:00:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_nvram_reg [2022-07-14 03:00:11,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_nvram_reg [2022-07-14 03:00:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-07-14 03:00:11,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-07-14 03:00:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-14 03:00:11,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-14 03:00:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-14 03:00:11,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-14 03:00:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-07-14 03:00:11,355 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-07-14 03:00:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-14 03:00:11,355 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-14 03:00:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_for_drvr_lock [2022-07-14 03:00:11,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_for_drvr_lock [2022-07-14 03:00:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-14 03:00:11,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-14 03:00:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-07-14 03:00:11,356 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-07-14 03:00:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_enable_scan_mode [2022-07-14 03:00:11,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_enable_scan_mode [2022-07-14 03:00:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-07-14 03:00:11,357 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-07-14 03:00:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-14 03:00:11,357 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-14 03:00:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-14 03:00:11,357 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-14 03:00:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-14 03:00:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 03:00:11,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 03:00:11,358 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_for_mii_ready [2022-07-14 03:00:11,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_for_mii_ready [2022-07-14 03:00:11,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-14 03:00:11,358 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-14 03:00:11,358 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-14 03:00:11,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-14 03:00:11,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-14 03:00:11,359 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_large_buffers [2022-07-14 03:00:11,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_large_buffers [2022-07-14 03:00:11,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 03:00:11,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-14 03:00:11,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 03:00:11,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 03:00:11,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 03:00:11,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-14 03:00:11,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-14 03:00:11,364 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-14 03:00:11,365 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-14 03:00:11,365 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2022-07-14 03:00:11,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2022-07-14 03:00:11,365 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-07-14 03:00:11,365 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-07-14 03:00:11,365 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-07-14 03:00:11,365 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-07-14 03:00:11,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-14 03:00:11,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-14 03:00:11,366 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_page0_reg [2022-07-14 03:00:11,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_page0_reg [2022-07-14 03:00:11,366 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-14 03:00:11,366 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-14 03:00:11,366 INFO L130 BoogieDeclarations]: Found specification of procedure PHY_Setup [2022-07-14 03:00:11,367 INFO L138 BoogieDeclarations]: Found implementation of procedure PHY_Setup [2022-07-14 03:00:11,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 03:00:11,367 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 03:00:11,367 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_buffer_queues [2022-07-14 03:00:11,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_buffer_queues [2022-07-14 03:00:11,367 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-14 03:00:11,368 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-14 03:00:11,368 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-14 03:00:11,368 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-14 03:00:11,368 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-07-14 03:00:11,368 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-07-14 03:00:11,368 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_remove [2022-07-14 03:00:11,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_remove [2022-07-14 03:00:11,369 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-14 03:00:11,369 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-14 03:00:11,369 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-07-14 03:00:11,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-07-14 03:00:11,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 03:00:11,369 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-14 03:00:11,369 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-14 03:00:11,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 03:00:11,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-14 03:00:11,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-14 03:00:11,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-14 03:00:11,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-14 03:00:11,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 03:00:11,373 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-07-14 03:00:11,374 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-07-14 03:00:11,374 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-14 03:00:11,374 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-14 03:00:11,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-14 03:00:11,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-14 03:00:11,380 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-14 03:00:11,380 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-14 03:00:11,380 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page0_reg [2022-07-14 03:00:11,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page0_reg [2022-07-14 03:00:11,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-07-14 03:00:11,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-07-14 03:00:11,380 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-14 03:00:11,381 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-14 03:00:11,381 INFO L130 BoogieDeclarations]: Found specification of procedure ql_is_link_full_dup [2022-07-14 03:00:11,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_is_link_full_dup [2022-07-14 03:00:11,381 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_open [2022-07-14 03:00:11,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_open [2022-07-14 03:00:11,381 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-14 03:00:11,381 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-14 03:00:11,381 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_tx_timeout [2022-07-14 03:00:11,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_tx_timeout [2022-07-14 03:00:11,382 INFO L130 BoogieDeclarations]: Found specification of procedure ql_supported_modes [2022-07-14 03:00:11,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_supported_modes [2022-07-14 03:00:11,382 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-07-14 03:00:11,382 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-07-14 03:00:11,382 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-14 03:00:11,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-14 03:00:11,382 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-14 03:00:11,383 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-14 03:00:11,383 INFO L130 BoogieDeclarations]: Found specification of procedure ql_is_fiber [2022-07-14 03:00:11,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_is_fiber [2022-07-14 03:00:11,383 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-07-14 03:00:11,383 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-07-14 03:00:11,383 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 03:00:11,383 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 03:00:11,384 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_net_req_rsp_queues [2022-07-14 03:00:11,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_net_req_rsp_queues [2022-07-14 03:00:11,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-14 03:00:11,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-14 03:00:11,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-14 03:00:11,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-14 03:00:11,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 03:00:11,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 03:00:11,385 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_write_reg_ex [2022-07-14 03:00:11,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_write_reg_ex [2022-07-14 03:00:11,385 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2022-07-14 03:00:11,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2022-07-14 03:00:11,385 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-14 03:00:11,385 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-14 03:00:11,385 INFO L130 BoogieDeclarations]: Found specification of procedure ql_port_start [2022-07-14 03:00:11,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_port_start [2022-07-14 03:00:11,386 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-07-14 03:00:11,386 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-07-14 03:00:11,386 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_auto_cfg_status [2022-07-14 03:00:11,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_auto_cfg_status [2022-07-14 03:00:11,386 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_write_reg [2022-07-14 03:00:11,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_write_reg [2022-07-14 03:00:11,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-14 03:00:11,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-14 03:00:11,387 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-07-14 03:00:11,387 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-07-14 03:00:11,387 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-07-14 03:00:11,387 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-07-14 03:00:11,387 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-14 03:00:11,387 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-14 03:00:11,388 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-07-14 03:00:11,388 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2022-07-14 03:00:11,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2022-07-14 03:00:11,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-14 03:00:11,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-14 03:00:12,324 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 03:00:12,331 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 03:00:12,740 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 03:00:53,658 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-14 03:00:53,744 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 03:00:53,764 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 03:00:53,765 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 03:00:53,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:00:53 BoogieIcfgContainer [2022-07-14 03:00:53,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 03:00:53,775 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 03:00:53,775 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 03:00:53,778 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 03:00:53,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 03:00:04" (1/3) ... [2022-07-14 03:00:53,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53911193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 03:00:53, skipping insertion in model container [2022-07-14 03:00:53,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:00:10" (2/3) ... [2022-07-14 03:00:53,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53911193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 03:00:53, skipping insertion in model container [2022-07-14 03:00:53,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:00:53" (3/3) ... [2022-07-14 03:00:53,781 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i [2022-07-14 03:00:53,795 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 03:00:53,796 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-14 03:00:53,915 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 03:00:53,925 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@4a5f78af, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7100d2ad [2022-07-14 03:00:53,925 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-14 03:00:53,939 INFO L276 IsEmpty]: Start isEmpty. Operand has 2500 states, 1648 states have (on average 1.258495145631068) internal successors, (2074), 1699 states have internal predecessors, (2074), 714 states have call successors, (714), 136 states have call predecessors, (714), 135 states have return successors, (709), 694 states have call predecessors, (709), 709 states have call successors, (709) [2022-07-14 03:00:53,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-14 03:00:53,965 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:00:53,966 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:00:53,967 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)] === [2022-07-14 03:00:53,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:00:53,973 INFO L85 PathProgramCache]: Analyzing trace with hash 404930848, now seen corresponding path program 1 times [2022-07-14 03:00:53,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:00:53,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1335116320] [2022-07-14 03:00:53,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:00:53,989 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:00:53,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:00:53,995 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) [2022-07-14 03:00:54,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-14 03:00:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:00:55,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 1224 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 03:00:55,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:00:55,450 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-14 03:00:55,451 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:00:55,451 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:00:55,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1335116320] [2022-07-14 03:00:55,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1335116320] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:00:55,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:00:55,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 03:00:55,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668312579] [2022-07-14 03:00:55,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:00:55,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 03:00:55,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:00:55,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 03:00:55,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:00:55,488 INFO L87 Difference]: Start difference. First operand has 2500 states, 1648 states have (on average 1.258495145631068) internal successors, (2074), 1699 states have internal predecessors, (2074), 714 states have call successors, (714), 136 states have call predecessors, (714), 135 states have return successors, (709), 694 states have call predecessors, (709), 709 states have call successors, (709) Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-14 03:00:56,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:00:56,070 INFO L93 Difference]: Finished difference Result 7383 states and 10536 transitions. [2022-07-14 03:00:56,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 03:00:56,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 112 [2022-07-14 03:00:56,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:00:56,122 INFO L225 Difference]: With dead ends: 7383 [2022-07-14 03:00:56,122 INFO L226 Difference]: Without dead ends: 4894 [2022-07-14 03:00:56,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:00:56,152 INFO L413 NwaCegarLoop]: 4176 mSDtfsCounter, 3386 mSDsluCounter, 3443 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3386 SdHoareTripleChecker+Valid, 7619 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:00:56,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3386 Valid, 7619 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:00:56,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4894 states. [2022-07-14 03:00:56,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4894 to 4890. [2022-07-14 03:00:56,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4890 states, 3236 states have (on average 1.2533992583436342) internal successors, (4056), 3336 states have internal predecessors, (4056), 1384 states have call successors, (1384), 268 states have call predecessors, (1384), 267 states have return successors, (1381), 1351 states have call predecessors, (1381), 1381 states have call successors, (1381) [2022-07-14 03:00:56,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4890 states to 4890 states and 6821 transitions. [2022-07-14 03:00:56,479 INFO L78 Accepts]: Start accepts. Automaton has 4890 states and 6821 transitions. Word has length 112 [2022-07-14 03:00:56,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:00:56,481 INFO L495 AbstractCegarLoop]: Abstraction has 4890 states and 6821 transitions. [2022-07-14 03:00:56,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-14 03:00:56,481 INFO L276 IsEmpty]: Start isEmpty. Operand 4890 states and 6821 transitions. [2022-07-14 03:00:56,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-14 03:00:56,485 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:00:56,485 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:00:56,521 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-14 03:00:56,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:00:56,708 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)] === [2022-07-14 03:00:56,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:00:56,708 INFO L85 PathProgramCache]: Analyzing trace with hash -376960966, now seen corresponding path program 1 times [2022-07-14 03:00:56,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:00:56,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [27354106] [2022-07-14 03:00:56,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:00:56,710 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:00:56,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:00:56,713 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) [2022-07-14 03:00:56,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-14 03:00:58,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:00:58,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 1295 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 03:00:58,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:00:58,346 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-14 03:00:58,346 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:00:58,347 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:00:58,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [27354106] [2022-07-14 03:00:58,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [27354106] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:00:58,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:00:58,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 03:00:58,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889258872] [2022-07-14 03:00:58,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:00:58,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 03:00:58,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:00:58,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 03:00:58,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:00:58,349 INFO L87 Difference]: Start difference. First operand 4890 states and 6821 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-14 03:00:59,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:00:59,061 INFO L93 Difference]: Finished difference Result 9061 states and 12519 transitions. [2022-07-14 03:00:59,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 03:00:59,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 117 [2022-07-14 03:00:59,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:00:59,095 INFO L225 Difference]: With dead ends: 9061 [2022-07-14 03:00:59,096 INFO L226 Difference]: Without dead ends: 4192 [2022-07-14 03:00:59,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:00:59,122 INFO L413 NwaCegarLoop]: 3749 mSDtfsCounter, 1143 mSDsluCounter, 3407 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 7156 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 03:00:59,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1143 Valid, 7156 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 03:00:59,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4192 states. [2022-07-14 03:00:59,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4192 to 4166. [2022-07-14 03:00:59,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4166 states, 2791 states have (on average 1.2393407380867072) internal successors, (3459), 2858 states have internal predecessors, (3459), 1102 states have call successors, (1102), 271 states have call predecessors, (1102), 270 states have return successors, (1099), 1081 states have call predecessors, (1099), 1099 states have call successors, (1099) [2022-07-14 03:00:59,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4166 states to 4166 states and 5660 transitions. [2022-07-14 03:00:59,312 INFO L78 Accepts]: Start accepts. Automaton has 4166 states and 5660 transitions. Word has length 117 [2022-07-14 03:00:59,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:00:59,313 INFO L495 AbstractCegarLoop]: Abstraction has 4166 states and 5660 transitions. [2022-07-14 03:00:59,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-14 03:00:59,314 INFO L276 IsEmpty]: Start isEmpty. Operand 4166 states and 5660 transitions. [2022-07-14 03:00:59,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-07-14 03:00:59,320 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:00:59,320 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:00:59,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-14 03:00:59,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:00:59,543 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)] === [2022-07-14 03:00:59,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:00:59,544 INFO L85 PathProgramCache]: Analyzing trace with hash 656615772, now seen corresponding path program 1 times [2022-07-14 03:00:59,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:00:59,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2070855904] [2022-07-14 03:00:59,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:00:59,546 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:00:59,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:00:59,553 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) [2022-07-14 03:00:59,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-14 03:01:00,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:01:00,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 1274 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 03:01:00,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:01:00,839 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-14 03:01:00,839 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:01:00,840 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:01:00,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2070855904] [2022-07-14 03:01:00,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2070855904] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:01:00,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:01:00,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 03:01:00,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315062816] [2022-07-14 03:01:00,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:01:00,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 03:01:00,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:01:00,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 03:01:00,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:01:00,843 INFO L87 Difference]: Start difference. First operand 4166 states and 5660 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-14 03:01:01,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:01:01,313 INFO L93 Difference]: Finished difference Result 11244 states and 15314 transitions. [2022-07-14 03:01:01,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 03:01:01,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 120 [2022-07-14 03:01:01,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:01:01,378 INFO L225 Difference]: With dead ends: 11244 [2022-07-14 03:01:01,378 INFO L226 Difference]: Without dead ends: 7099 [2022-07-14 03:01:01,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:01:01,415 INFO L413 NwaCegarLoop]: 4444 mSDtfsCounter, 3339 mSDsluCounter, 3267 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3339 SdHoareTripleChecker+Valid, 7711 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:01:01,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3339 Valid, 7711 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:01:01,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7099 states. [2022-07-14 03:01:01,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7099 to 7065. [2022-07-14 03:01:01,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7065 states, 4743 states have (on average 1.2426734134514021) internal successors, (5894), 4865 states have internal predecessors, (5894), 1859 states have call successors, (1859), 465 states have call predecessors, (1859), 460 states have return successors, (1875), 1811 states have call predecessors, (1875), 1856 states have call successors, (1875) [2022-07-14 03:01:01,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7065 states to 7065 states and 9628 transitions. [2022-07-14 03:01:01,856 INFO L78 Accepts]: Start accepts. Automaton has 7065 states and 9628 transitions. Word has length 120 [2022-07-14 03:01:01,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:01:01,857 INFO L495 AbstractCegarLoop]: Abstraction has 7065 states and 9628 transitions. [2022-07-14 03:01:01,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-14 03:01:01,857 INFO L276 IsEmpty]: Start isEmpty. Operand 7065 states and 9628 transitions. [2022-07-14 03:01:01,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-07-14 03:01:01,860 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:01:01,860 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:01:01,900 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-14 03:01:02,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:01:02,080 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)] === [2022-07-14 03:01:02,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:01:02,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1149806852, now seen corresponding path program 1 times [2022-07-14 03:01:02,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:01:02,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1114412004] [2022-07-14 03:01:02,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:01:02,083 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:01:02,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:01:02,085 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) [2022-07-14 03:01:02,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-14 03:01:03,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:01:03,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 1314 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 03:01:03,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:01:03,405 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-14 03:01:03,406 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:01:03,406 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:01:03,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1114412004] [2022-07-14 03:01:03,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1114412004] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:01:03,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:01:03,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 03:01:03,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117246954] [2022-07-14 03:01:03,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:01:03,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 03:01:03,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:01:03,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 03:01:03,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:01:03,408 INFO L87 Difference]: Start difference. First operand 7065 states and 9628 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-14 03:01:04,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:01:04,132 INFO L93 Difference]: Finished difference Result 17952 states and 24573 transitions. [2022-07-14 03:01:04,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 03:01:04,133 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 135 [2022-07-14 03:01:04,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:01:04,232 INFO L225 Difference]: With dead ends: 17952 [2022-07-14 03:01:04,233 INFO L226 Difference]: Without dead ends: 10908 [2022-07-14 03:01:04,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:01:04,282 INFO L413 NwaCegarLoop]: 4095 mSDtfsCounter, 2988 mSDsluCounter, 3388 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2988 SdHoareTripleChecker+Valid, 7483 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 03:01:04,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2988 Valid, 7483 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 03:01:04,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10908 states. [2022-07-14 03:01:04,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10908 to 10873. [2022-07-14 03:01:04,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10873 states, 7248 states have (on average 1.2425496688741722) internal successors, (9006), 7477 states have internal predecessors, (9006), 2931 states have call successors, (2931), 701 states have call predecessors, (2931), 691 states have return successors, (2968), 2832 states have call predecessors, (2968), 2928 states have call successors, (2968) [2022-07-14 03:01:04,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10873 states to 10873 states and 14905 transitions. [2022-07-14 03:01:04,935 INFO L78 Accepts]: Start accepts. Automaton has 10873 states and 14905 transitions. Word has length 135 [2022-07-14 03:01:04,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:01:04,937 INFO L495 AbstractCegarLoop]: Abstraction has 10873 states and 14905 transitions. [2022-07-14 03:01:04,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-14 03:01:04,938 INFO L276 IsEmpty]: Start isEmpty. Operand 10873 states and 14905 transitions. [2022-07-14 03:01:04,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-07-14 03:01:04,942 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:01:04,942 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 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] [2022-07-14 03:01:04,982 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-14 03:01:05,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:01:05,164 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)] === [2022-07-14 03:01:05,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:01:05,164 INFO L85 PathProgramCache]: Analyzing trace with hash -473532878, now seen corresponding path program 1 times [2022-07-14 03:01:05,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:01:05,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [275552018] [2022-07-14 03:01:05,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:01:05,166 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:01:05,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:01:05,168 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) [2022-07-14 03:01:05,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-14 03:01:06,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:01:06,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 1345 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:01:06,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:01:07,714 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2022-07-14 03:01:07,714 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:01:07,714 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:01:07,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [275552018] [2022-07-14 03:01:07,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [275552018] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:01:07,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:01:07,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 03:01:07,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884254997] [2022-07-14 03:01:07,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:01:07,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:01:07,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:01:07,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:01:07,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 03:01:07,717 INFO L87 Difference]: Start difference. First operand 10873 states and 14905 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-14 03:01:08,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:01:08,161 INFO L93 Difference]: Finished difference Result 10879 states and 14910 transitions. [2022-07-14 03:01:08,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 03:01:08,162 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 164 [2022-07-14 03:01:08,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:01:08,229 INFO L225 Difference]: With dead ends: 10879 [2022-07-14 03:01:08,230 INFO L226 Difference]: Without dead ends: 10877 [2022-07-14 03:01:08,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:01:08,243 INFO L413 NwaCegarLoop]: 3466 mSDtfsCounter, 3395 mSDsluCounter, 6919 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3396 SdHoareTripleChecker+Valid, 10385 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 [2022-07-14 03:01:08,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3396 Valid, 10385 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 03:01:08,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10877 states. [2022-07-14 03:01:08,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10877 to 10877. [2022-07-14 03:01:08,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10877 states, 7251 states have (on average 1.24244931733554) internal successors, (9009), 7480 states have internal predecessors, (9009), 2931 states have call successors, (2931), 702 states have call predecessors, (2931), 692 states have return successors, (2968), 2832 states have call predecessors, (2968), 2928 states have call successors, (2968) [2022-07-14 03:01:08,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10877 states to 10877 states and 14908 transitions. [2022-07-14 03:01:08,832 INFO L78 Accepts]: Start accepts. Automaton has 10877 states and 14908 transitions. Word has length 164 [2022-07-14 03:01:08,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:01:08,832 INFO L495 AbstractCegarLoop]: Abstraction has 10877 states and 14908 transitions. [2022-07-14 03:01:08,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-14 03:01:08,833 INFO L276 IsEmpty]: Start isEmpty. Operand 10877 states and 14908 transitions. [2022-07-14 03:01:08,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-14 03:01:08,835 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:01:08,835 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 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] [2022-07-14 03:01:08,866 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-07-14 03:01:09,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:01:09,048 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)] === [2022-07-14 03:01:09,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:01:09,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1390037152, now seen corresponding path program 1 times [2022-07-14 03:01:09,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:01:09,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2117237759] [2022-07-14 03:01:09,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:01:09,050 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:01:09,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:01:09,051 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) [2022-07-14 03:01:09,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-14 03:01:10,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:01:10,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 1352 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:01:10,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:01:11,655 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2022-07-14 03:01:11,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:01:12,332 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2022-07-14 03:01:12,333 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:01:12,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2117237759] [2022-07-14 03:01:12,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2117237759] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:01:12,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:01:12,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:01:12,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116705302] [2022-07-14 03:01:12,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:01:12,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:01:12,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:01:12,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:01:12,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:01:12,334 INFO L87 Difference]: Start difference. First operand 10877 states and 14908 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 03:01:12,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:01:12,847 INFO L93 Difference]: Finished difference Result 11240 states and 15288 transitions. [2022-07-14 03:01:12,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:01:12,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 169 [2022-07-14 03:01:12,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:01:12,920 INFO L225 Difference]: With dead ends: 11240 [2022-07-14 03:01:12,921 INFO L226 Difference]: Without dead ends: 11238 [2022-07-14 03:01:12,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:01:12,935 INFO L413 NwaCegarLoop]: 3504 mSDtfsCounter, 3376 mSDsluCounter, 7134 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3387 SdHoareTripleChecker+Valid, 10638 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 [2022-07-14 03:01:12,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3387 Valid, 10638 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 03:01:12,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11238 states. [2022-07-14 03:01:13,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11238 to 11234. [2022-07-14 03:01:13,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11234 states, 7461 states have (on average 1.237769735960327) internal successors, (9235), 7698 states have internal predecessors, (9235), 3006 states have call successors, (3006), 774 states have call predecessors, (3006), 764 states have return successors, (3043), 2907 states have call predecessors, (3043), 3003 states have call successors, (3043) [2022-07-14 03:01:13,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11234 states to 11234 states and 15284 transitions. [2022-07-14 03:01:13,529 INFO L78 Accepts]: Start accepts. Automaton has 11234 states and 15284 transitions. Word has length 169 [2022-07-14 03:01:13,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:01:13,530 INFO L495 AbstractCegarLoop]: Abstraction has 11234 states and 15284 transitions. [2022-07-14 03:01:13,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 03:01:13,530 INFO L276 IsEmpty]: Start isEmpty. Operand 11234 states and 15284 transitions. [2022-07-14 03:01:13,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-07-14 03:01:13,533 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:01:13,533 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 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] [2022-07-14 03:01:13,570 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-14 03:01:13,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:01:13,756 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)] === [2022-07-14 03:01:13,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:01:13,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1831592626, now seen corresponding path program 1 times [2022-07-14 03:01:13,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:01:13,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [337746651] [2022-07-14 03:01:13,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:01:13,757 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:01:13,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:01:13,759 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) [2022-07-14 03:01:13,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-14 03:01:14,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:01:14,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 1359 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:01:14,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:01:16,361 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2022-07-14 03:01:16,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:01:17,013 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2022-07-14 03:01:17,014 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:01:17,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [337746651] [2022-07-14 03:01:17,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [337746651] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:01:17,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:01:17,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:01:17,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480935146] [2022-07-14 03:01:17,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:01:17,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:01:17,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:01:17,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:01:17,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:01:17,016 INFO L87 Difference]: Start difference. First operand 11234 states and 15284 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-14 03:01:17,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:01:17,491 INFO L93 Difference]: Finished difference Result 11240 states and 15289 transitions. [2022-07-14 03:01:17,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:01:17,492 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 174 [2022-07-14 03:01:17,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:01:17,560 INFO L225 Difference]: With dead ends: 11240 [2022-07-14 03:01:17,560 INFO L226 Difference]: Without dead ends: 11238 [2022-07-14 03:01:17,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:01:17,573 INFO L413 NwaCegarLoop]: 3469 mSDtfsCounter, 3411 mSDsluCounter, 6918 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3421 SdHoareTripleChecker+Valid, 10387 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 [2022-07-14 03:01:17,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3421 Valid, 10387 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 03:01:17,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11238 states. [2022-07-14 03:01:18,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11238 to 11238. [2022-07-14 03:01:18,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11238 states, 7464 states have (on average 1.237674169346195) internal successors, (9238), 7701 states have internal predecessors, (9238), 3006 states have call successors, (3006), 775 states have call predecessors, (3006), 765 states have return successors, (3043), 2907 states have call predecessors, (3043), 3003 states have call successors, (3043) [2022-07-14 03:01:18,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11238 states to 11238 states and 15287 transitions. [2022-07-14 03:01:18,149 INFO L78 Accepts]: Start accepts. Automaton has 11238 states and 15287 transitions. Word has length 174 [2022-07-14 03:01:18,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:01:18,150 INFO L495 AbstractCegarLoop]: Abstraction has 11238 states and 15287 transitions. [2022-07-14 03:01:18,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-14 03:01:18,151 INFO L276 IsEmpty]: Start isEmpty. Operand 11238 states and 15287 transitions. [2022-07-14 03:01:18,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-07-14 03:01:18,154 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:01:18,154 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 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] [2022-07-14 03:01:18,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-14 03:01:18,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:01:18,376 INFO L420 AbstractCegarLoop]: === Iteration 8 === 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)] === [2022-07-14 03:01:18,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:01:18,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1207099844, now seen corresponding path program 1 times [2022-07-14 03:01:18,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:01:18,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2083446731] [2022-07-14 03:01:18,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:01:18,377 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:01:18,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:01:18,379 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) [2022-07-14 03:01:18,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-14 03:01:19,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:01:19,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 1433 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 03:01:19,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:01:19,878 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2022-07-14 03:01:19,879 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:01:19,879 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:01:19,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2083446731] [2022-07-14 03:01:19,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2083446731] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:01:19,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:01:19,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 03:01:19,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326130260] [2022-07-14 03:01:19,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:01:19,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 03:01:19,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:01:19,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 03:01:19,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:01:19,881 INFO L87 Difference]: Start difference. First operand 11238 states and 15287 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 03:01:20,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:01:20,696 INFO L93 Difference]: Finished difference Result 24634 states and 33361 transitions. [2022-07-14 03:01:20,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 03:01:20,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 177 [2022-07-14 03:01:20,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:01:20,783 INFO L225 Difference]: With dead ends: 24634 [2022-07-14 03:01:20,783 INFO L226 Difference]: Without dead ends: 13482 [2022-07-14 03:01:20,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:01:20,846 INFO L413 NwaCegarLoop]: 4573 mSDtfsCounter, 1134 mSDsluCounter, 3403 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 7976 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 03:01:20,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1134 Valid, 7976 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 03:01:20,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13482 states. [2022-07-14 03:01:21,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13482 to 13441. [2022-07-14 03:01:21,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13441 states, 8963 states have (on average 1.2309494588865335) internal successors, (11033), 9228 states have internal predecessors, (11033), 3500 states have call successors, (3500), 985 states have call predecessors, (3500), 975 states have return successors, (3537), 3389 states have call predecessors, (3537), 3497 states have call successors, (3537) [2022-07-14 03:01:21,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13441 states to 13441 states and 18070 transitions. [2022-07-14 03:01:21,592 INFO L78 Accepts]: Start accepts. Automaton has 13441 states and 18070 transitions. Word has length 177 [2022-07-14 03:01:21,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:01:21,593 INFO L495 AbstractCegarLoop]: Abstraction has 13441 states and 18070 transitions. [2022-07-14 03:01:21,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 03:01:21,593 INFO L276 IsEmpty]: Start isEmpty. Operand 13441 states and 18070 transitions. [2022-07-14 03:01:21,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-07-14 03:01:21,597 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:01:21,597 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 3, 3, 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] [2022-07-14 03:01:21,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-14 03:01:21,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:01:21,820 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)] === [2022-07-14 03:01:21,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:01:21,820 INFO L85 PathProgramCache]: Analyzing trace with hash 111074208, now seen corresponding path program 1 times [2022-07-14 03:01:21,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:01:21,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [14862457] [2022-07-14 03:01:21,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:01:21,822 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:01:21,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:01:21,824 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) [2022-07-14 03:01:21,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-14 03:01:23,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:01:23,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 1366 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:01:23,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:01:24,628 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2022-07-14 03:01:24,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:01:25,322 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2022-07-14 03:01:25,323 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:01:25,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [14862457] [2022-07-14 03:01:25,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [14862457] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:01:25,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:01:25,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:01:25,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708385967] [2022-07-14 03:01:25,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:01:25,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:01:25,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:01:25,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:01:25,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:01:25,325 INFO L87 Difference]: Start difference. First operand 13441 states and 18070 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-14 03:01:25,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:01:25,910 INFO L93 Difference]: Finished difference Result 13447 states and 18075 transitions. [2022-07-14 03:01:25,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:01:25,911 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 179 [2022-07-14 03:01:25,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:01:25,973 INFO L225 Difference]: With dead ends: 13447 [2022-07-14 03:01:25,973 INFO L226 Difference]: Without dead ends: 13445 [2022-07-14 03:01:25,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:01:25,984 INFO L413 NwaCegarLoop]: 3469 mSDtfsCounter, 3411 mSDsluCounter, 6918 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3420 SdHoareTripleChecker+Valid, 10387 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 [2022-07-14 03:01:25,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3420 Valid, 10387 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 03:01:25,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13445 states. [2022-07-14 03:01:26,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13445 to 13445. [2022-07-14 03:01:26,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13445 states, 8966 states have (on average 1.2308721838054875) internal successors, (11036), 9231 states have internal predecessors, (11036), 3500 states have call successors, (3500), 986 states have call predecessors, (3500), 976 states have return successors, (3537), 3389 states have call predecessors, (3537), 3497 states have call successors, (3537) [2022-07-14 03:01:26,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13445 states to 13445 states and 18073 transitions. [2022-07-14 03:01:26,583 INFO L78 Accepts]: Start accepts. Automaton has 13445 states and 18073 transitions. Word has length 179 [2022-07-14 03:01:26,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:01:26,584 INFO L495 AbstractCegarLoop]: Abstraction has 13445 states and 18073 transitions. [2022-07-14 03:01:26,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-14 03:01:26,584 INFO L276 IsEmpty]: Start isEmpty. Operand 13445 states and 18073 transitions. [2022-07-14 03:01:26,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-14 03:01:26,587 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:01:26,588 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 5, 4, 4, 4, 4, 4, 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] [2022-07-14 03:01:26,627 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-14 03:01:26,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:01:26,812 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)] === [2022-07-14 03:01:26,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:01:26,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1283809074, now seen corresponding path program 1 times [2022-07-14 03:01:26,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:01:26,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [590152651] [2022-07-14 03:01:26,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:01:26,814 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:01:26,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:01:26,821 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) [2022-07-14 03:01:26,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-14 03:01:27,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:01:28,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 1373 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:01:28,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:01:29,563 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2022-07-14 03:01:29,563 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:01:30,235 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2022-07-14 03:01:30,235 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:01:30,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [590152651] [2022-07-14 03:01:30,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [590152651] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:01:30,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:01:30,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:01:30,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138275704] [2022-07-14 03:01:30,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:01:30,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:01:30,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:01:30,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:01:30,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:01:30,238 INFO L87 Difference]: Start difference. First operand 13445 states and 18073 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 03:01:30,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:01:30,847 INFO L93 Difference]: Finished difference Result 13781 states and 18375 transitions. [2022-07-14 03:01:30,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:01:30,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 184 [2022-07-14 03:01:30,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:01:30,908 INFO L225 Difference]: With dead ends: 13781 [2022-07-14 03:01:30,908 INFO L226 Difference]: Without dead ends: 13779 [2022-07-14 03:01:30,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:01:30,920 INFO L413 NwaCegarLoop]: 3498 mSDtfsCounter, 2069 mSDsluCounter, 8360 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2077 SdHoareTripleChecker+Valid, 11858 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 [2022-07-14 03:01:30,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2077 Valid, 11858 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 03:01:30,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13779 states. [2022-07-14 03:01:31,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13779 to 13777. [2022-07-14 03:01:31,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13777 states, 9179 states have (on average 1.2270399825689073) internal successors, (11263), 9452 states have internal predecessors, (11263), 3536 states have call successors, (3536), 1069 states have call predecessors, (3536), 1059 states have return successors, (3573), 3425 states have call predecessors, (3573), 3533 states have call successors, (3573) [2022-07-14 03:01:31,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13777 states to 13777 states and 18372 transitions. [2022-07-14 03:01:31,601 INFO L78 Accepts]: Start accepts. Automaton has 13777 states and 18372 transitions. Word has length 184 [2022-07-14 03:01:31,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:01:31,602 INFO L495 AbstractCegarLoop]: Abstraction has 13777 states and 18372 transitions. [2022-07-14 03:01:31,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 03:01:31,602 INFO L276 IsEmpty]: Start isEmpty. Operand 13777 states and 18372 transitions. [2022-07-14 03:01:31,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-14 03:01:31,606 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:01:31,606 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 6, 5, 5, 4, 4, 4, 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] [2022-07-14 03:01:31,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-14 03:01:31,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:01:31,827 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)] === [2022-07-14 03:01:31,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:01:31,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1249468064, now seen corresponding path program 1 times [2022-07-14 03:01:31,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:01:31,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [683641936] [2022-07-14 03:01:31,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:01:31,830 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:01:31,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:01:31,832 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) [2022-07-14 03:01:31,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-14 03:01:32,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:01:32,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 1380 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:01:32,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:01:34,495 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2022-07-14 03:01:34,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:01:35,154 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2022-07-14 03:01:35,154 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:01:35,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [683641936] [2022-07-14 03:01:35,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [683641936] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:01:35,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:01:35,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:01:35,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477327405] [2022-07-14 03:01:35,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:01:35,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:01:35,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:01:35,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:01:35,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:01:35,157 INFO L87 Difference]: Start difference. First operand 13777 states and 18372 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-07-14 03:01:35,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:01:35,704 INFO L93 Difference]: Finished difference Result 13783 states and 18377 transitions. [2022-07-14 03:01:35,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:01:35,705 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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 189 [2022-07-14 03:01:35,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:01:35,785 INFO L225 Difference]: With dead ends: 13783 [2022-07-14 03:01:35,785 INFO L226 Difference]: Without dead ends: 13781 [2022-07-14 03:01:35,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:01:35,802 INFO L413 NwaCegarLoop]: 3469 mSDtfsCounter, 3411 mSDsluCounter, 6918 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3418 SdHoareTripleChecker+Valid, 10387 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 [2022-07-14 03:01:35,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3418 Valid, 10387 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 03:01:35,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13781 states. [2022-07-14 03:01:36,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13781 to 13781. [2022-07-14 03:01:36,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13781 states, 9182 states have (on average 1.226965802657373) internal successors, (11266), 9455 states have internal predecessors, (11266), 3536 states have call successors, (3536), 1070 states have call predecessors, (3536), 1060 states have return successors, (3573), 3425 states have call predecessors, (3573), 3533 states have call successors, (3573) [2022-07-14 03:01:36,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13781 states to 13781 states and 18375 transitions. [2022-07-14 03:01:36,559 INFO L78 Accepts]: Start accepts. Automaton has 13781 states and 18375 transitions. Word has length 189 [2022-07-14 03:01:36,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:01:36,560 INFO L495 AbstractCegarLoop]: Abstraction has 13781 states and 18375 transitions. [2022-07-14 03:01:36,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-07-14 03:01:36,560 INFO L276 IsEmpty]: Start isEmpty. Operand 13781 states and 18375 transitions. [2022-07-14 03:01:36,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-07-14 03:01:36,563 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:01:36,563 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 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] [2022-07-14 03:01:36,604 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-14 03:01:36,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:01:36,779 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)] === [2022-07-14 03:01:36,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:01:36,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1834659795, now seen corresponding path program 1 times [2022-07-14 03:01:36,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:01:36,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [419267046] [2022-07-14 03:01:36,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:01:36,782 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:01:36,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:01:36,783 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) [2022-07-14 03:01:36,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-14 03:01:38,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:01:38,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 1436 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 03:01:38,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:01:38,286 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2022-07-14 03:01:38,286 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:01:38,287 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:01:38,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [419267046] [2022-07-14 03:01:38,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [419267046] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:01:38,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:01:38,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 03:01:38,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711217248] [2022-07-14 03:01:38,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:01:38,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 03:01:38,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:01:38,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 03:01:38,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:01:38,289 INFO L87 Difference]: Start difference. First operand 13781 states and 18375 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-14 03:01:39,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:01:39,263 INFO L93 Difference]: Finished difference Result 40670 states and 54274 transitions. [2022-07-14 03:01:39,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 03:01:39,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 212 [2022-07-14 03:01:39,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:01:39,417 INFO L225 Difference]: With dead ends: 40670 [2022-07-14 03:01:39,418 INFO L226 Difference]: Without dead ends: 26975 [2022-07-14 03:01:39,483 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 [2022-07-14 03:01:39,484 INFO L413 NwaCegarLoop]: 6813 mSDtfsCounter, 3379 mSDsluCounter, 3456 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3379 SdHoareTripleChecker+Valid, 10269 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:01:39,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3379 Valid, 10269 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:01:39,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26975 states. [2022-07-14 03:01:40,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26975 to 26928. [2022-07-14 03:01:40,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26928 states, 17950 states have (on average 1.2283565459610029) internal successors, (22049), 18462 states have internal predecessors, (22049), 6901 states have call successors, (6901), 2093 states have call predecessors, (6901), 2074 states have return successors, (6978), 6712 states have call predecessors, (6978), 6898 states have call successors, (6978) [2022-07-14 03:01:40,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26928 states to 26928 states and 35928 transitions. [2022-07-14 03:01:40,825 INFO L78 Accepts]: Start accepts. Automaton has 26928 states and 35928 transitions. Word has length 212 [2022-07-14 03:01:40,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:01:40,826 INFO L495 AbstractCegarLoop]: Abstraction has 26928 states and 35928 transitions. [2022-07-14 03:01:40,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-14 03:01:40,827 INFO L276 IsEmpty]: Start isEmpty. Operand 26928 states and 35928 transitions. [2022-07-14 03:01:40,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-07-14 03:01:40,831 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:01:40,832 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 7, 6, 6, 4, 4, 4, 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] [2022-07-14 03:01:40,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-14 03:01:41,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:01:41,053 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)] === [2022-07-14 03:01:41,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:01:41,054 INFO L85 PathProgramCache]: Analyzing trace with hash -335615054, now seen corresponding path program 1 times [2022-07-14 03:01:41,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:01:41,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [545360250] [2022-07-14 03:01:41,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:01:41,056 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:01:41,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:01:41,058 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) [2022-07-14 03:01:41,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-14 03:01:42,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:01:42,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 1387 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:01:42,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:01:43,778 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2022-07-14 03:01:43,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:01:44,414 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2022-07-14 03:01:44,414 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:01:44,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [545360250] [2022-07-14 03:01:44,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [545360250] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:01:44,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:01:44,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:01:44,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602472996] [2022-07-14 03:01:44,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:01:44,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:01:44,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:01:44,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:01:44,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:01:44,416 INFO L87 Difference]: Start difference. First operand 26928 states and 35928 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-07-14 03:01:45,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:01:45,477 INFO L93 Difference]: Finished difference Result 26934 states and 35933 transitions. [2022-07-14 03:01:45,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:01:45,477 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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 194 [2022-07-14 03:01:45,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:01:45,582 INFO L225 Difference]: With dead ends: 26934 [2022-07-14 03:01:45,582 INFO L226 Difference]: Without dead ends: 26932 [2022-07-14 03:01:45,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 381 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:01:45,601 INFO L413 NwaCegarLoop]: 3469 mSDtfsCounter, 3411 mSDsluCounter, 6918 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3417 SdHoareTripleChecker+Valid, 10387 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 [2022-07-14 03:01:45,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3417 Valid, 10387 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 03:01:45,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26932 states. [2022-07-14 03:01:46,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26932 to 26932. [2022-07-14 03:01:46,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26932 states, 17953 states have (on average 1.2283183868991254) internal successors, (22052), 18465 states have internal predecessors, (22052), 6901 states have call successors, (6901), 2094 states have call predecessors, (6901), 2075 states have return successors, (6978), 6712 states have call predecessors, (6978), 6898 states have call successors, (6978) [2022-07-14 03:01:46,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26932 states to 26932 states and 35931 transitions. [2022-07-14 03:01:46,658 INFO L78 Accepts]: Start accepts. Automaton has 26932 states and 35931 transitions. Word has length 194 [2022-07-14 03:01:46,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:01:46,658 INFO L495 AbstractCegarLoop]: Abstraction has 26932 states and 35931 transitions. [2022-07-14 03:01:46,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-07-14 03:01:46,658 INFO L276 IsEmpty]: Start isEmpty. Operand 26932 states and 35931 transitions. [2022-07-14 03:01:46,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-14 03:01:46,661 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:01:46,661 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 8, 7, 7, 4, 4, 4, 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] [2022-07-14 03:01:46,690 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-14 03:01:46,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:01:46,861 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)] === [2022-07-14 03:01:46,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:01:46,862 INFO L85 PathProgramCache]: Analyzing trace with hash 800969120, now seen corresponding path program 1 times [2022-07-14 03:01:46,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:01:46,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [664324520] [2022-07-14 03:01:46,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:01:46,863 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:01:46,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:01:46,864 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) [2022-07-14 03:01:46,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-14 03:01:47,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:01:47,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 1394 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:01:47,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:01:49,457 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2022-07-14 03:01:49,458 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:01:50,088 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2022-07-14 03:01:50,088 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:01:50,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [664324520] [2022-07-14 03:01:50,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [664324520] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:01:50,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:01:50,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:01:50,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881408300] [2022-07-14 03:01:50,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:01:50,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:01:50,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:01:50,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:01:50,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:01:50,090 INFO L87 Difference]: Start difference. First operand 26932 states and 35931 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-07-14 03:01:51,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:01:51,193 INFO L93 Difference]: Finished difference Result 26938 states and 35936 transitions. [2022-07-14 03:01:51,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:01:51,194 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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 199 [2022-07-14 03:01:51,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:01:51,308 INFO L225 Difference]: With dead ends: 26938 [2022-07-14 03:01:51,308 INFO L226 Difference]: Without dead ends: 26936 [2022-07-14 03:01:51,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:01:51,323 INFO L413 NwaCegarLoop]: 3469 mSDtfsCounter, 3411 mSDsluCounter, 6918 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3416 SdHoareTripleChecker+Valid, 10387 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 [2022-07-14 03:01:51,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3416 Valid, 10387 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 03:01:51,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26936 states. [2022-07-14 03:01:52,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26936 to 26936. [2022-07-14 03:01:52,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26936 states, 17956 states have (on average 1.2282802405881041) internal successors, (22055), 18468 states have internal predecessors, (22055), 6901 states have call successors, (6901), 2095 states have call predecessors, (6901), 2076 states have return successors, (6978), 6712 states have call predecessors, (6978), 6898 states have call successors, (6978) [2022-07-14 03:01:52,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26936 states to 26936 states and 35934 transitions. [2022-07-14 03:01:52,469 INFO L78 Accepts]: Start accepts. Automaton has 26936 states and 35934 transitions. Word has length 199 [2022-07-14 03:01:52,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:01:52,470 INFO L495 AbstractCegarLoop]: Abstraction has 26936 states and 35934 transitions. [2022-07-14 03:01:52,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-07-14 03:01:52,470 INFO L276 IsEmpty]: Start isEmpty. Operand 26936 states and 35934 transitions. [2022-07-14 03:01:52,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-07-14 03:01:52,473 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:01:52,473 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 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] [2022-07-14 03:01:52,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-14 03:01:52,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:01:52,696 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)] === [2022-07-14 03:01:52,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:01:52,696 INFO L85 PathProgramCache]: Analyzing trace with hash -816969109, now seen corresponding path program 1 times [2022-07-14 03:01:52,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:01:52,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [638894032] [2022-07-14 03:01:52,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:01:52,697 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:01:52,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:01:52,699 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) [2022-07-14 03:01:52,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-14 03:01:53,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:01:53,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 1450 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-14 03:01:53,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:01:55,298 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 112 proven. 3 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2022-07-14 03:01:55,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:01:56,794 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked. [2022-07-14 03:01:56,795 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:01:56,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [638894032] [2022-07-14 03:01:56,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [638894032] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 03:01:56,795 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 03:01:56,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 22 [2022-07-14 03:01:56,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731993556] [2022-07-14 03:01:56,796 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 03:01:56,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-14 03:01:56,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:01:56,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-14 03:01:56,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-07-14 03:01:56,798 INFO L87 Difference]: Start difference. First operand 26936 states and 35934 transitions. Second operand has 22 states, 21 states have (on average 4.0476190476190474) internal successors, (85), 20 states have internal predecessors, (85), 6 states have call successors, (44), 3 states have call predecessors, (44), 8 states have return successors, (43), 7 states have call predecessors, (43), 6 states have call successors, (43) [2022-07-14 03:02:31,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:02:31,746 INFO L93 Difference]: Finished difference Result 53887 states and 71839 transitions. [2022-07-14 03:02:31,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-07-14 03:02:31,747 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 4.0476190476190474) internal successors, (85), 20 states have internal predecessors, (85), 6 states have call successors, (44), 3 states have call predecessors, (44), 8 states have return successors, (43), 7 states have call predecessors, (43), 6 states have call successors, (43) Word has length 222 [2022-07-14 03:02:31,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:02:31,956 INFO L225 Difference]: With dead ends: 53887 [2022-07-14 03:02:31,957 INFO L226 Difference]: Without dead ends: 53716 [2022-07-14 03:02:31,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 425 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=287, Invalid=1693, Unknown=0, NotChecked=0, Total=1980 [2022-07-14 03:02:31,981 INFO L413 NwaCegarLoop]: 6575 mSDtfsCounter, 7642 mSDsluCounter, 88343 mSDsCounter, 0 mSdLazyCounter, 5718 mSolverCounterSat, 1706 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7680 SdHoareTripleChecker+Valid, 94918 SdHoareTripleChecker+Invalid, 7424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1706 IncrementalHoareTripleChecker+Valid, 5718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.0s IncrementalHoareTripleChecker+Time [2022-07-14 03:02:31,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7680 Valid, 94918 Invalid, 7424 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1706 Valid, 5718 Invalid, 0 Unknown, 0 Unchecked, 30.0s Time] [2022-07-14 03:02:32,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53716 states. [2022-07-14 03:02:33,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53716 to 40355. [2022-07-14 03:02:33,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40355 states, 26897 states have (on average 1.2287987507900509) internal successors, (33051), 27672 states have internal predecessors, (33051), 10338 states have call successors, (10338), 3145 states have call predecessors, (10338), 3117 states have return successors, (10455), 10047 states have call predecessors, (10455), 10335 states have call successors, (10455) [2022-07-14 03:02:34,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40355 states to 40355 states and 53844 transitions. [2022-07-14 03:02:34,054 INFO L78 Accepts]: Start accepts. Automaton has 40355 states and 53844 transitions. Word has length 222 [2022-07-14 03:02:34,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:02:34,055 INFO L495 AbstractCegarLoop]: Abstraction has 40355 states and 53844 transitions. [2022-07-14 03:02:34,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 4.0476190476190474) internal successors, (85), 20 states have internal predecessors, (85), 6 states have call successors, (44), 3 states have call predecessors, (44), 8 states have return successors, (43), 7 states have call predecessors, (43), 6 states have call successors, (43) [2022-07-14 03:02:34,055 INFO L276 IsEmpty]: Start isEmpty. Operand 40355 states and 53844 transitions. [2022-07-14 03:02:34,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-07-14 03:02:34,057 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:02:34,057 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 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] [2022-07-14 03:02:34,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-14 03:02:34,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:02:34,258 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)] === [2022-07-14 03:02:34,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:02:34,259 INFO L85 PathProgramCache]: Analyzing trace with hash -289109966, now seen corresponding path program 1 times [2022-07-14 03:02:34,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:02:34,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [326457515] [2022-07-14 03:02:34,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:02:34,260 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:02:34,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:02:34,261 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) [2022-07-14 03:02:34,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-14 03:02:35,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:02:35,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 1401 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:02:35,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:02:37,163 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2022-07-14 03:02:37,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:02:37,842 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2022-07-14 03:02:37,842 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:02:37,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [326457515] [2022-07-14 03:02:37,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [326457515] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:02:37,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:02:37,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:02:37,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571617759] [2022-07-14 03:02:37,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:02:37,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:02:37,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:02:37,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:02:37,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:02:37,844 INFO L87 Difference]: Start difference. First operand 40355 states and 53844 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-07-14 03:02:39,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:02:39,499 INFO L93 Difference]: Finished difference Result 40361 states and 53849 transitions. [2022-07-14 03:02:39,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:02:39,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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 204 [2022-07-14 03:02:39,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:02:39,686 INFO L225 Difference]: With dead ends: 40361 [2022-07-14 03:02:39,687 INFO L226 Difference]: Without dead ends: 40359 [2022-07-14 03:02:39,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:02:39,718 INFO L413 NwaCegarLoop]: 3469 mSDtfsCounter, 3411 mSDsluCounter, 6918 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3415 SdHoareTripleChecker+Valid, 10387 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 [2022-07-14 03:02:39,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3415 Valid, 10387 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 03:02:39,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40359 states. [2022-07-14 03:02:41,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40359 to 40359. [2022-07-14 03:02:41,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40359 states, 26900 states have (on average 1.2287732342007436) internal successors, (33054), 27675 states have internal predecessors, (33054), 10338 states have call successors, (10338), 3146 states have call predecessors, (10338), 3118 states have return successors, (10455), 10047 states have call predecessors, (10455), 10335 states have call successors, (10455) [2022-07-14 03:02:41,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40359 states to 40359 states and 53847 transitions. [2022-07-14 03:02:41,804 INFO L78 Accepts]: Start accepts. Automaton has 40359 states and 53847 transitions. Word has length 204 [2022-07-14 03:02:41,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:02:41,805 INFO L495 AbstractCegarLoop]: Abstraction has 40359 states and 53847 transitions. [2022-07-14 03:02:41,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-07-14 03:02:41,805 INFO L276 IsEmpty]: Start isEmpty. Operand 40359 states and 53847 transitions. [2022-07-14 03:02:41,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-07-14 03:02:41,808 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:02:41,808 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 9, 9, 8, 8, 8, 8, 8, 8, 4, 4, 4, 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] [2022-07-14 03:02:41,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-14 03:02:42,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:02:42,032 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)] === [2022-07-14 03:02:42,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:02:42,032 INFO L85 PathProgramCache]: Analyzing trace with hash 784348320, now seen corresponding path program 1 times [2022-07-14 03:02:42,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:02:42,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1400054554] [2022-07-14 03:02:42,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:02:42,033 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:02:42,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:02:42,034 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) [2022-07-14 03:02:42,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-14 03:02:43,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:02:43,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 1408 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:02:43,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:02:44,753 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2022-07-14 03:02:44,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:02:45,411 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2022-07-14 03:02:45,411 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:02:45,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1400054554] [2022-07-14 03:02:45,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1400054554] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:02:45,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:02:45,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:02:45,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397810079] [2022-07-14 03:02:45,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:02:45,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:02:45,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:02:45,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:02:45,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:02:45,414 INFO L87 Difference]: Start difference. First operand 40359 states and 53847 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-07-14 03:02:47,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:02:47,093 INFO L93 Difference]: Finished difference Result 40365 states and 53852 transitions. [2022-07-14 03:02:47,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:02:47,094 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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 209 [2022-07-14 03:02:47,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:02:47,369 INFO L225 Difference]: With dead ends: 40365 [2022-07-14 03:02:47,369 INFO L226 Difference]: Without dead ends: 40363 [2022-07-14 03:02:47,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:02:47,388 INFO L413 NwaCegarLoop]: 3469 mSDtfsCounter, 3411 mSDsluCounter, 6918 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3414 SdHoareTripleChecker+Valid, 10387 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 [2022-07-14 03:02:47,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3414 Valid, 10387 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 03:02:47,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40363 states. [2022-07-14 03:02:49,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40363 to 40363. [2022-07-14 03:02:49,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40363 states, 26903 states have (on average 1.228747723302234) internal successors, (33057), 27678 states have internal predecessors, (33057), 10338 states have call successors, (10338), 3147 states have call predecessors, (10338), 3119 states have return successors, (10455), 10047 states have call predecessors, (10455), 10335 states have call successors, (10455) [2022-07-14 03:02:49,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40363 states to 40363 states and 53850 transitions. [2022-07-14 03:02:49,454 INFO L78 Accepts]: Start accepts. Automaton has 40363 states and 53850 transitions. Word has length 209 [2022-07-14 03:02:49,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:02:49,454 INFO L495 AbstractCegarLoop]: Abstraction has 40363 states and 53850 transitions. [2022-07-14 03:02:49,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-07-14 03:02:49,455 INFO L276 IsEmpty]: Start isEmpty. Operand 40363 states and 53850 transitions. [2022-07-14 03:02:49,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-07-14 03:02:49,459 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:02:49,460 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 10, 10, 8, 8, 8, 8, 8, 8, 7, 7, 7, 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] [2022-07-14 03:02:49,498 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-14 03:02:49,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:02:49,680 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)] === [2022-07-14 03:02:49,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:02:49,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1067051351, now seen corresponding path program 1 times [2022-07-14 03:02:49,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:02:49,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1094488765] [2022-07-14 03:02:49,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:02:49,681 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:02:49,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:02:49,683 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) [2022-07-14 03:02:49,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-14 03:02:50,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:02:50,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 1481 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:02:50,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:02:51,246 INFO L134 CoverageAnalysis]: Checked inductivity of 655 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2022-07-14 03:02:51,247 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:02:51,247 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:02:51,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1094488765] [2022-07-14 03:02:51,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1094488765] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:02:51,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:02:51,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 03:02:51,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588386794] [2022-07-14 03:02:51,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:02:51,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:02:51,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:02:51,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:02:51,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 03:02:51,250 INFO L87 Difference]: Start difference. First operand 40363 states and 53850 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-07-14 03:02:58,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:02:58,677 INFO L93 Difference]: Finished difference Result 78483 states and 104854 transitions. [2022-07-14 03:02:58,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 03:02:58,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 240 [2022-07-14 03:02:58,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:02:58,865 INFO L225 Difference]: With dead ends: 78483 [2022-07-14 03:02:58,865 INFO L226 Difference]: Without dead ends: 38194 [2022-07-14 03:02:58,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-14 03:02:58,996 INFO L413 NwaCegarLoop]: 4568 mSDtfsCounter, 1107 mSDsluCounter, 11512 mSDsCounter, 0 mSdLazyCounter, 1156 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1116 SdHoareTripleChecker+Valid, 16080 SdHoareTripleChecker+Invalid, 1158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:02:58,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1116 Valid, 16080 Invalid, 1158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1156 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-07-14 03:02:59,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38194 states. [2022-07-14 03:03:00,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38194 to 38130. [2022-07-14 03:03:00,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38130 states, 25385 states have (on average 1.2302934804018122) internal successors, (31231), 26126 states have internal predecessors, (31231), 9832 states have call successors, (9832), 2938 states have call predecessors, (9832), 2910 states have return successors, (9949), 9557 states have call predecessors, (9949), 9829 states have call successors, (9949) [2022-07-14 03:03:01,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38130 states to 38130 states and 51012 transitions. [2022-07-14 03:03:01,283 INFO L78 Accepts]: Start accepts. Automaton has 38130 states and 51012 transitions. Word has length 240 [2022-07-14 03:03:01,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:03:01,284 INFO L495 AbstractCegarLoop]: Abstraction has 38130 states and 51012 transitions. [2022-07-14 03:03:01,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-07-14 03:03:01,284 INFO L276 IsEmpty]: Start isEmpty. Operand 38130 states and 51012 transitions. [2022-07-14 03:03:01,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-07-14 03:03:01,286 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:03:01,287 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 10, 10, 8, 8, 8, 8, 8, 8, 4, 4, 4, 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] [2022-07-14 03:03:01,324 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-07-14 03:03:01,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:03:01,508 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)] === [2022-07-14 03:03:01,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:03:01,508 INFO L85 PathProgramCache]: Analyzing trace with hash -251513678, now seen corresponding path program 1 times [2022-07-14 03:03:01,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:03:01,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1205397290] [2022-07-14 03:03:01,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:03:01,509 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:03:01,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:03:01,510 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) [2022-07-14 03:03:01,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-07-14 03:03:02,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:03:02,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 1415 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:03:02,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:03:04,189 INFO L134 CoverageAnalysis]: Checked inductivity of 596 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2022-07-14 03:03:04,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:03:04,841 INFO L134 CoverageAnalysis]: Checked inductivity of 596 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2022-07-14 03:03:04,841 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:03:04,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1205397290] [2022-07-14 03:03:04,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1205397290] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:03:04,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:03:04,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:03:04,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699599803] [2022-07-14 03:03:04,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:03:04,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:03:04,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:03:04,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:03:04,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:03:04,843 INFO L87 Difference]: Start difference. First operand 38130 states and 51012 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-07-14 03:03:06,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:03:06,468 INFO L93 Difference]: Finished difference Result 38136 states and 51017 transitions. [2022-07-14 03:03:06,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:03:06,469 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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 214 [2022-07-14 03:03:06,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:03:06,735 INFO L225 Difference]: With dead ends: 38136 [2022-07-14 03:03:06,735 INFO L226 Difference]: Without dead ends: 38134 [2022-07-14 03:03:06,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 421 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:03:06,753 INFO L413 NwaCegarLoop]: 3469 mSDtfsCounter, 3411 mSDsluCounter, 6918 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3413 SdHoareTripleChecker+Valid, 10387 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 [2022-07-14 03:03:06,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3413 Valid, 10387 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 03:03:06,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38134 states. [2022-07-14 03:03:08,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38134 to 38134. [2022-07-14 03:03:08,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38134 states, 25388 states have (on average 1.2302662675279659) internal successors, (31234), 26129 states have internal predecessors, (31234), 9832 states have call successors, (9832), 2939 states have call predecessors, (9832), 2911 states have return successors, (9949), 9557 states have call predecessors, (9949), 9829 states have call successors, (9949) [2022-07-14 03:03:08,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38134 states to 38134 states and 51015 transitions. [2022-07-14 03:03:08,800 INFO L78 Accepts]: Start accepts. Automaton has 38134 states and 51015 transitions. Word has length 214 [2022-07-14 03:03:08,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:03:08,801 INFO L495 AbstractCegarLoop]: Abstraction has 38134 states and 51015 transitions. [2022-07-14 03:03:08,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-07-14 03:03:08,802 INFO L276 IsEmpty]: Start isEmpty. Operand 38134 states and 51015 transitions. [2022-07-14 03:03:08,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-07-14 03:03:08,804 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:03:08,805 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 11, 11, 8, 8, 8, 8, 8, 8, 4, 4, 4, 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] [2022-07-14 03:03:08,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-07-14 03:03:09,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:03:09,020 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)] === [2022-07-14 03:03:09,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:03:09,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1725204384, now seen corresponding path program 1 times [2022-07-14 03:03:09,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:03:09,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [350553224] [2022-07-14 03:03:09,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:03:09,021 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:03:09,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:03:09,022 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) [2022-07-14 03:03:09,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-07-14 03:03:10,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:03:10,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 1422 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:03:10,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:03:11,876 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2022-07-14 03:03:11,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:03:12,624 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2022-07-14 03:03:12,624 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:03:12,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [350553224] [2022-07-14 03:03:12,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [350553224] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:03:12,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:03:12,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:03:12,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369912159] [2022-07-14 03:03:12,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:03:12,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:03:12,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:03:12,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:03:12,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:03:12,626 INFO L87 Difference]: Start difference. First operand 38134 states and 51015 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-07-14 03:03:14,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:03:14,418 INFO L93 Difference]: Finished difference Result 38140 states and 51020 transitions. [2022-07-14 03:03:14,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:03:14,418 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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 219 [2022-07-14 03:03:14,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:03:14,606 INFO L225 Difference]: With dead ends: 38140 [2022-07-14 03:03:14,606 INFO L226 Difference]: Without dead ends: 38136 [2022-07-14 03:03:14,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:03:14,635 INFO L413 NwaCegarLoop]: 3469 mSDtfsCounter, 3411 mSDsluCounter, 6918 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3412 SdHoareTripleChecker+Valid, 10387 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 [2022-07-14 03:03:14,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3412 Valid, 10387 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 03:03:14,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38136 states. [2022-07-14 03:03:16,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38136 to 38136. [2022-07-14 03:03:16,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38136 states, 25390 states have (on average 1.2302087435998426) internal successors, (31235), 26130 states have internal predecessors, (31235), 9832 states have call successors, (9832), 2940 states have call predecessors, (9832), 2911 states have return successors, (9949), 9557 states have call predecessors, (9949), 9829 states have call successors, (9949) [2022-07-14 03:03:16,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38136 states to 38136 states and 51016 transitions. [2022-07-14 03:03:16,771 INFO L78 Accepts]: Start accepts. Automaton has 38136 states and 51016 transitions. Word has length 219 [2022-07-14 03:03:16,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:03:16,772 INFO L495 AbstractCegarLoop]: Abstraction has 38136 states and 51016 transitions. [2022-07-14 03:03:16,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-07-14 03:03:16,773 INFO L276 IsEmpty]: Start isEmpty. Operand 38136 states and 51016 transitions. [2022-07-14 03:03:16,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-07-14 03:03:16,776 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:03:16,776 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 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] [2022-07-14 03:03:16,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-07-14 03:03:16,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:03:16,991 INFO L420 AbstractCegarLoop]: === Iteration 21 === 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)] === [2022-07-14 03:03:16,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:03:16,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1206120754, now seen corresponding path program 1 times [2022-07-14 03:03:16,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:03:16,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1556925072] [2022-07-14 03:03:16,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:03:16,994 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:03:16,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:03:16,996 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 03:03:16,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-07-14 03:03:18,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:03:18,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 1429 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:03:18,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:03:19,909 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2022-07-14 03:03:19,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:03:20,578 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2022-07-14 03:03:20,579 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:03:20,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1556925072] [2022-07-14 03:03:20,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1556925072] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:03:20,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:03:20,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:03:20,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533119136] [2022-07-14 03:03:20,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:03:20,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:03:20,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:03:20,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:03:20,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:03:20,581 INFO L87 Difference]: Start difference. First operand 38136 states and 51016 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-07-14 03:03:22,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:03:22,778 INFO L93 Difference]: Finished difference Result 38136 states and 51016 transitions. [2022-07-14 03:03:22,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:03:22,778 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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 224 [2022-07-14 03:03:22,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:03:22,927 INFO L225 Difference]: With dead ends: 38136 [2022-07-14 03:03:22,927 INFO L226 Difference]: Without dead ends: 37891 [2022-07-14 03:03:22,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:03:22,950 INFO L413 NwaCegarLoop]: 3467 mSDtfsCounter, 3407 mSDsluCounter, 6917 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3407 SdHoareTripleChecker+Valid, 10384 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 03:03:22,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3407 Valid, 10384 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 03:03:22,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37891 states. [2022-07-14 03:03:24,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37891 to 37891. [2022-07-14 03:03:24,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37891 states, 25223 states have (on average 1.2295523926574952) internal successors, (31013), 25943 states have internal predecessors, (31013), 9773 states have call successors, (9773), 2920 states have call predecessors, (9773), 2893 states have return successors, (9893), 9519 states have call predecessors, (9893), 9773 states have call successors, (9893) [2022-07-14 03:03:25,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37891 states to 37891 states and 50679 transitions. [2022-07-14 03:03:25,127 INFO L78 Accepts]: Start accepts. Automaton has 37891 states and 50679 transitions. Word has length 224 [2022-07-14 03:03:25,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:03:25,128 INFO L495 AbstractCegarLoop]: Abstraction has 37891 states and 50679 transitions. [2022-07-14 03:03:25,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-07-14 03:03:25,128 INFO L276 IsEmpty]: Start isEmpty. Operand 37891 states and 50679 transitions. [2022-07-14 03:03:25,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-07-14 03:03:25,131 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:03:25,131 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:03:25,175 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-07-14 03:03:25,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:03:25,347 INFO L420 AbstractCegarLoop]: === Iteration 22 === 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)] === [2022-07-14 03:03:25,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:03:25,348 INFO L85 PathProgramCache]: Analyzing trace with hash -10417404, now seen corresponding path program 1 times [2022-07-14 03:03:25,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:03:25,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1470049580] [2022-07-14 03:03:25,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:03:25,349 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:03:25,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:03:25,350 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 03:03:25,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-07-14 03:03:26,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:03:26,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 1573 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 03:03:26,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:03:26,679 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2022-07-14 03:03:26,679 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:03:26,679 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:03:26,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1470049580] [2022-07-14 03:03:26,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1470049580] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:03:26,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:03:26,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 03:03:26,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495260228] [2022-07-14 03:03:26,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:03:26,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 03:03:26,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:03:26,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 03:03:26,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:03:26,681 INFO L87 Difference]: Start difference. First operand 37891 states and 50679 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-14 03:03:29,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:03:29,334 INFO L93 Difference]: Finished difference Result 82080 states and 109359 transitions. [2022-07-14 03:03:29,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 03:03:29,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 251 [2022-07-14 03:03:29,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:03:29,529 INFO L225 Difference]: With dead ends: 82080 [2022-07-14 03:03:29,529 INFO L226 Difference]: Without dead ends: 44208 [2022-07-14 03:03:29,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:03:29,807 INFO L413 NwaCegarLoop]: 4507 mSDtfsCounter, 1093 mSDsluCounter, 3360 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 7867 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 03:03:29,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1093 Valid, 7867 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 03:03:29,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44208 states. [2022-07-14 03:03:31,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44208 to 44200. [2022-07-14 03:03:31,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44200 states, 29521 states have (on average 1.2245858880119238) internal successors, (36151), 30307 states have internal predecessors, (36151), 11145 states have call successors, (11145), 3559 states have call predecessors, (11145), 3532 states have return successors, (11265), 10879 states have call predecessors, (11265), 11145 states have call successors, (11265) [2022-07-14 03:03:32,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44200 states to 44200 states and 58561 transitions. [2022-07-14 03:03:32,128 INFO L78 Accepts]: Start accepts. Automaton has 44200 states and 58561 transitions. Word has length 251 [2022-07-14 03:03:32,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:03:32,129 INFO L495 AbstractCegarLoop]: Abstraction has 44200 states and 58561 transitions. [2022-07-14 03:03:32,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-14 03:03:32,129 INFO L276 IsEmpty]: Start isEmpty. Operand 44200 states and 58561 transitions. [2022-07-14 03:03:32,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-07-14 03:03:32,131 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:03:32,131 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:03:32,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-07-14 03:03:32,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:03:32,332 INFO L420 AbstractCegarLoop]: === Iteration 23 === 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)] === [2022-07-14 03:03:32,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:03:32,333 INFO L85 PathProgramCache]: Analyzing trace with hash 51622210, now seen corresponding path program 1 times [2022-07-14 03:03:32,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:03:32,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1669109797] [2022-07-14 03:03:32,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:03:32,334 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:03:32,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:03:32,335 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 03:03:32,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-07-14 03:03:33,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:03:33,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 1573 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 03:03:33,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:03:33,657 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2022-07-14 03:03:33,657 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:03:33,657 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:03:33,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1669109797] [2022-07-14 03:03:33,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1669109797] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:03:33,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:03:33,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 03:03:33,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636200610] [2022-07-14 03:03:33,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:03:33,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 03:03:33,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:03:33,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 03:03:33,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:03:33,659 INFO L87 Difference]: Start difference. First operand 44200 states and 58561 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-14 03:03:37,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:03:37,084 INFO L93 Difference]: Finished difference Result 105222 states and 139660 transitions. [2022-07-14 03:03:37,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 03:03:37,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 251 [2022-07-14 03:03:37,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:03:37,375 INFO L225 Difference]: With dead ends: 105222 [2022-07-14 03:03:37,375 INFO L226 Difference]: Without dead ends: 61108 [2022-07-14 03:03:37,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:03:37,530 INFO L413 NwaCegarLoop]: 5566 mSDtfsCounter, 2588 mSDsluCounter, 2940 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2588 SdHoareTripleChecker+Valid, 8506 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 03:03:37,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2588 Valid, 8506 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 03:03:37,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61108 states. [2022-07-14 03:03:40,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61108 to 61100. [2022-07-14 03:03:41,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61100 states, 40667 states have (on average 1.223916197408218) internal successors, (49773), 41795 states have internal predecessors, (49773), 15562 states have call successors, (15562), 4902 states have call predecessors, (15562), 4869 states have return successors, (15694), 15242 states have call predecessors, (15694), 15562 states have call successors, (15694) [2022-07-14 03:03:41,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61100 states to 61100 states and 81029 transitions. [2022-07-14 03:03:41,307 INFO L78 Accepts]: Start accepts. Automaton has 61100 states and 81029 transitions. Word has length 251 [2022-07-14 03:03:41,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:03:41,307 INFO L495 AbstractCegarLoop]: Abstraction has 61100 states and 81029 transitions. [2022-07-14 03:03:41,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-14 03:03:41,308 INFO L276 IsEmpty]: Start isEmpty. Operand 61100 states and 81029 transitions. [2022-07-14 03:03:41,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2022-07-14 03:03:41,311 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:03:41,311 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 10, 10, 10, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:03:41,342 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Ended with exit code 0 [2022-07-14 03:03:41,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:03:41,512 INFO L420 AbstractCegarLoop]: === Iteration 24 === 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)] === [2022-07-14 03:03:41,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:03:41,513 INFO L85 PathProgramCache]: Analyzing trace with hash 707456788, now seen corresponding path program 1 times [2022-07-14 03:03:41,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:03:41,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1117238345] [2022-07-14 03:03:41,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:03:41,514 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:03:41,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:03:41,515 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 03:03:41,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-07-14 03:03:42,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:03:42,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 1873 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 03:03:42,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:03:42,963 INFO L134 CoverageAnalysis]: Checked inductivity of 775 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 706 trivial. 0 not checked. [2022-07-14 03:03:42,963 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:03:42,964 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:03:42,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1117238345] [2022-07-14 03:03:42,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1117238345] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:03:42,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:03:42,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 03:03:42,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765753256] [2022-07-14 03:03:42,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:03:42,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 03:03:42,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:03:42,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 03:03:42,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:03:42,965 INFO L87 Difference]: Start difference. First operand 61100 states and 81029 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28)