./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-sis-sis900.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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-sis-sis900.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 82e959473290e80a4f353bcd3c2747bafa4ce239975e14e29f8e5bf5eff4b01b --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 02:36:28,457 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 02:36:28,459 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 02:36:28,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 02:36:28,495 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 02:36:28,496 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 02:36:28,498 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 02:36:28,499 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 02:36:28,501 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 02:36:28,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 02:36:28,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 02:36:28,508 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 02:36:28,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 02:36:28,509 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 02:36:28,511 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 02:36:28,514 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 02:36:28,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 02:36:28,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 02:36:28,517 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 02:36:28,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 02:36:28,522 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 02:36:28,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 02:36:28,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 02:36:28,524 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 02:36:28,525 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 02:36:28,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 02:36:28,528 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 02:36:28,529 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 02:36:28,529 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 02:36:28,530 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 02:36:28,530 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 02:36:28,531 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 02:36:28,532 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 02:36:28,532 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 02:36:28,533 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 02:36:28,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 02:36:28,533 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 02:36:28,534 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 02:36:28,534 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 02:36:28,534 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 02:36:28,535 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 02:36:28,536 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 02:36:28,537 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 02:36:28,564 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 02:36:28,565 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 02:36:28,565 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 02:36:28,565 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 02:36:28,566 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 02:36:28,566 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 02:36:28,566 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 02:36:28,566 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 02:36:28,567 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 02:36:28,567 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 02:36:28,568 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 02:36:28,568 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 02:36:28,568 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 02:36:28,568 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 02:36:28,568 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 02:36:28,568 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 02:36:28,568 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 02:36:28,569 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 02:36:28,569 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 02:36:28,570 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 02:36:28,570 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 02:36:28,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 02:36:28,570 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 02:36:28,570 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 02:36:28,570 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 02:36:28,571 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 02:36:28,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 02:36:28,571 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 02:36:28,571 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 02:36:28,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 02:36:28,571 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82e959473290e80a4f353bcd3c2747bafa4ce239975e14e29f8e5bf5eff4b01b [2022-07-23 02:36:28,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 02:36:28,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 02:36:28,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 02:36:28,782 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 02:36:28,782 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 02:36:28,784 INFO L432 ainManager$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-sis-sis900.cil.i [2022-07-23 02:36:28,834 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/084280f3f/af33f4c635de4cd383f272455e76a43f/FLAG8bf63a8dd [2022-07-23 02:36:29,517 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 02:36:29,518 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-sis-sis900.cil.i [2022-07-23 02:36:29,572 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/084280f3f/af33f4c635de4cd383f272455e76a43f/FLAG8bf63a8dd [2022-07-23 02:36:29,628 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/084280f3f/af33f4c635de4cd383f272455e76a43f [2022-07-23 02:36:29,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 02:36:29,631 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 02:36:29,632 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 02:36:29,632 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 02:36:29,635 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 02:36:29,635 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:36:29" (1/1) ... [2022-07-23 02:36:29,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52a9a90b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:36:29, skipping insertion in model container [2022-07-23 02:36:29,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:36:29" (1/1) ... [2022-07-23 02:36:29,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 02:36:29,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 02:36:31,926 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-sis-sis900.cil.i[343367,343380] [2022-07-23 02:36:31,929 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-sis-sis900.cil.i[343536,343549] [2022-07-23 02:36:31,930 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-sis-sis900.cil.i[343703,343716] [2022-07-23 02:36:31,933 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-sis-sis900.cil.i[343871,343884] [2022-07-23 02:36:31,954 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 02:36:31,991 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 02:36:32,159 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: cfgpmcsr = cfgpmcsr & 4294967039U [8534] 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:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) 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) [2022-07-23 02:36:32,165 INFO L158 Benchmark]: Toolchain (without parser) took 2533.45ms. Allocated memory was 100.7MB in the beginning and 148.9MB in the end (delta: 48.2MB). Free memory was 52.9MB in the beginning and 57.2MB in the end (delta: -4.3MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. [2022-07-23 02:36:32,166 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 75.5MB. Free memory was 48.3MB in the beginning and 48.3MB in the end (delta: 29.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 02:36:32,167 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2531.56ms. Allocated memory was 100.7MB in the beginning and 148.9MB in the end (delta: 48.2MB). Free memory was 52.6MB in the beginning and 57.2MB in the end (delta: -4.5MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. [2022-07-23 02:36:32,168 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 75.5MB. Free memory was 48.3MB in the beginning and 48.3MB in the end (delta: 29.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2531.56ms. Allocated memory was 100.7MB in the beginning and 148.9MB in the end (delta: 48.2MB). Free memory was 52.6MB in the beginning and 57.2MB in the end (delta: -4.5MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: cfgpmcsr = cfgpmcsr & 4294967039U [8534] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: cfgpmcsr = cfgpmcsr & 4294967039U [8534]: 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-sis-sis900.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 82e959473290e80a4f353bcd3c2747bafa4ce239975e14e29f8e5bf5eff4b01b --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 02:36:33,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 02:36:33,923 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 02:36:33,944 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 02:36:33,944 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 02:36:33,945 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 02:36:33,946 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 02:36:33,948 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 02:36:33,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 02:36:33,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 02:36:33,950 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 02:36:33,951 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 02:36:33,952 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 02:36:33,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 02:36:33,953 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 02:36:33,954 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 02:36:33,955 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 02:36:33,956 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 02:36:33,957 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 02:36:33,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 02:36:33,960 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 02:36:33,961 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 02:36:33,962 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 02:36:33,963 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 02:36:33,964 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 02:36:33,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 02:36:33,971 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 02:36:33,971 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 02:36:33,972 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 02:36:33,972 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 02:36:33,973 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 02:36:33,974 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 02:36:33,975 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 02:36:33,975 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 02:36:33,976 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 02:36:33,978 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 02:36:33,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 02:36:33,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 02:36:33,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 02:36:33,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 02:36:33,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 02:36:33,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 02:36:33,987 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-23 02:36:34,017 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 02:36:34,018 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 02:36:34,018 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 02:36:34,019 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 02:36:34,019 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 02:36:34,019 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 02:36:34,020 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 02:36:34,020 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 02:36:34,020 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 02:36:34,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 02:36:34,021 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 02:36:34,021 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 02:36:34,022 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 02:36:34,022 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 02:36:34,022 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-23 02:36:34,022 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-23 02:36:34,022 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-23 02:36:34,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 02:36:34,023 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 02:36:34,023 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 02:36:34,023 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 02:36:34,023 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 02:36:34,024 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 02:36:34,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 02:36:34,024 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 02:36:34,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 02:36:34,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 02:36:34,025 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-23 02:36:34,025 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-23 02:36:34,025 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 02:36:34,025 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 02:36:34,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 02:36:34,026 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-23 02:36:34,026 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82e959473290e80a4f353bcd3c2747bafa4ce239975e14e29f8e5bf5eff4b01b [2022-07-23 02:36:34,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 02:36:34,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 02:36:34,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 02:36:34,332 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 02:36:34,332 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 02:36:34,334 INFO L432 ainManager$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-sis-sis900.cil.i [2022-07-23 02:36:34,400 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfeca8a4b/4222e15e606140b98da0957a8e619e72/FLAG6172f6fae [2022-07-23 02:36:35,068 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 02:36:35,069 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-sis-sis900.cil.i [2022-07-23 02:36:35,118 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfeca8a4b/4222e15e606140b98da0957a8e619e72/FLAG6172f6fae [2022-07-23 02:36:35,165 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfeca8a4b/4222e15e606140b98da0957a8e619e72 [2022-07-23 02:36:35,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 02:36:35,169 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 02:36:35,171 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 02:36:35,171 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 02:36:35,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 02:36:35,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:36:35" (1/1) ... [2022-07-23 02:36:35,176 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6258359e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:36:35, skipping insertion in model container [2022-07-23 02:36:35,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:36:35" (1/1) ... [2022-07-23 02:36:35,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 02:36:35,296 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 02:36:37,225 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-sis-sis900.cil.i[343367,343380] [2022-07-23 02:36:37,227 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-sis-sis900.cil.i[343536,343549] [2022-07-23 02:36:37,229 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-sis-sis900.cil.i[343703,343716] [2022-07-23 02:36:37,232 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-sis-sis900.cil.i[343871,343884] [2022-07-23 02:36:37,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 02:36:37,301 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-23 02:36:37,421 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 02:36:37,646 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-sis-sis900.cil.i[343367,343380] [2022-07-23 02:36:37,647 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-sis-sis900.cil.i[343536,343549] [2022-07-23 02:36:37,648 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-sis-sis900.cil.i[343703,343716] [2022-07-23 02:36:37,648 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-sis-sis900.cil.i[343871,343884] [2022-07-23 02:36:37,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 02:36:37,677 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 02:36:37,983 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-sis-sis900.cil.i[343367,343380] [2022-07-23 02:36:37,984 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-sis-sis900.cil.i[343536,343549] [2022-07-23 02:36:37,984 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-sis-sis900.cil.i[343703,343716] [2022-07-23 02:36:37,985 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-sis-sis900.cil.i[343871,343884] [2022-07-23 02:36:37,991 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 02:36:38,156 INFO L208 MainTranslator]: Completed translation [2022-07-23 02:36:38,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:36:38 WrapperNode [2022-07-23 02:36:38,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 02:36:38,158 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 02:36:38,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 02:36:38,158 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 02:36:38,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:36:38" (1/1) ... [2022-07-23 02:36:38,251 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:36:38" (1/1) ... [2022-07-23 02:36:38,438 INFO L137 Inliner]: procedures = 463, calls = 1948, calls flagged for inlining = 238, calls inlined = 222, statements flattened = 5029 [2022-07-23 02:36:38,439 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 02:36:38,440 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 02:36:38,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 02:36:38,440 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 02:36:38,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:36:38" (1/1) ... [2022-07-23 02:36:38,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:36:38" (1/1) ... [2022-07-23 02:36:38,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:36:38" (1/1) ... [2022-07-23 02:36:38,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:36:38" (1/1) ... [2022-07-23 02:36:38,561 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:36:38" (1/1) ... [2022-07-23 02:36:38,581 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:36:38" (1/1) ... [2022-07-23 02:36:38,605 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:36:38" (1/1) ... [2022-07-23 02:36:38,630 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 02:36:38,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 02:36:38,632 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 02:36:38,632 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 02:36:38,632 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:36:38" (1/1) ... [2022-07-23 02:36:38,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 02:36:38,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 02:36:38,669 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) [2022-07-23 02:36:38,687 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 [2022-07-23 02:36:38,704 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rxfilter [2022-07-23 02:36:38,705 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rxfilter [2022-07-23 02:36:38,705 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-07-23 02:36:38,705 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-07-23 02:36:38,705 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-23 02:36:38,705 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-23 02:36:38,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-23 02:36:38,706 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-23 02:36:38,706 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-23 02:36:38,706 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-23 02:36:38,706 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-23 02:36:38,706 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-23 02:36:38,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 02:36:38,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 02:36:38,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-23 02:36:38,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-23 02:36:38,707 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-23 02:36:38,707 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-23 02:36:38,707 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-23 02:36:38,707 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-23 02:36:38,708 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-07-23 02:36:38,708 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-07-23 02:36:38,708 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_default_phy [2022-07-23 02:36:38,708 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_default_phy [2022-07-23 02:36:38,708 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-07-23 02:36:38,708 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-07-23 02:36:38,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_75 [2022-07-23 02:36:38,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_75 [2022-07-23 02:36:38,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_66 [2022-07-23 02:36:38,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_66 [2022-07-23 02:36:38,709 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-23 02:36:38,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-23 02:36:38,709 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-23 02:36:38,709 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-23 02:36:38,710 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_check_mode [2022-07-23 02:36:38,710 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_check_mode [2022-07-23 02:36:38,710 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-23 02:36:38,710 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-23 02:36:38,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-23 02:36:38,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-23 02:36:38,711 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-23 02:36:38,711 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-23 02:36:38,712 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-23 02:36:38,712 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-23 02:36:38,712 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-23 02:36:38,712 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-23 02:36:38,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-23 02:36:38,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-23 02:36:38,712 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_remove [2022-07-23 02:36:38,713 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_remove [2022-07-23 02:36:38,713 INFO L130 BoogieDeclarations]: Found specification of procedure sis630_set_eq [2022-07-23 02:36:38,713 INFO L138 BoogieDeclarations]: Found implementation of procedure sis630_set_eq [2022-07-23 02:36:38,713 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_device [2022-07-23 02:36:38,713 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_device [2022-07-23 02:36:38,713 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-23 02:36:38,713 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-23 02:36:38,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 02:36:38,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-23 02:36:38,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-23 02:36:38,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-23 02:36:38,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-23 02:36:38,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sis900_cleanup_module_14_2 [2022-07-23 02:36:38,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sis900_cleanup_module_14_2 [2022-07-23 02:36:38,715 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_tx_ring [2022-07-23 02:36:38,715 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_tx_ring [2022-07-23 02:36:38,715 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-23 02:36:38,715 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-23 02:36:38,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_sis900_private [2022-07-23 02:36:38,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_sis900_private [2022-07-23 02:36:38,715 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-23 02:36:38,716 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-23 02:36:38,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-23 02:36:38,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-23 02:36:38,716 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_mode [2022-07-23 02:36:38,716 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_mode [2022-07-23 02:36:38,716 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-07-23 02:36:38,717 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-07-23 02:36:38,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_sis900_private [2022-07-23 02:36:38,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_sis900_private [2022-07-23 02:36:38,717 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-23 02:36:38,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-23 02:36:38,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-23 02:36:38,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-23 02:36:38,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-23 02:36:38,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-23 02:36:38,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-23 02:36:38,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-23 02:36:38,718 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-23 02:36:38,719 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-23 02:36:38,719 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_interrupt [2022-07-23 02:36:38,719 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_interrupt [2022-07-23 02:36:38,719 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_reset_phy [2022-07-23 02:36:38,719 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_reset_phy [2022-07-23 02:36:38,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-23 02:36:38,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-23 02:36:38,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 02:36:38,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-23 02:36:38,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-23 02:36:38,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-23 02:36:38,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-23 02:36:38,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 02:36:38,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-23 02:36:38,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-23 02:36:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 02:36:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-07-23 02:36:38,731 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-07-23 02:36:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_open [2022-07-23 02:36:38,732 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_open [2022-07-23 02:36:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-23 02:36:38,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-23 02:36:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_nway_reset [2022-07-23 02:36:38,733 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_nway_reset [2022-07-23 02:36:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-23 02:36:38,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-23 02:36:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-23 02:36:38,733 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-23 02:36:38,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-23 02:36:38,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-23 02:36:38,734 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-07-23 02:36:38,734 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-07-23 02:36:38,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 02:36:38,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 02:36:38,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-23 02:36:38,734 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_close [2022-07-23 02:36:38,734 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_close [2022-07-23 02:36:38,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-23 02:36:38,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-23 02:36:38,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-23 02:36:38,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 02:36:38,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 02:36:38,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-23 02:36:38,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-23 02:36:38,735 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-23 02:36:38,735 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-23 02:36:38,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-23 02:36:38,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-23 02:36:38,736 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_reset [2022-07-23 02:36:38,736 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_reset [2022-07-23 02:36:38,736 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-23 02:36:38,736 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-23 02:36:38,736 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-23 02:36:38,736 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-23 02:36:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-23 02:36:38,737 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-23 02:36:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-23 02:36:38,737 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-23 02:36:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2022-07-23 02:36:38,737 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2022-07-23 02:36:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-23 02:36:38,737 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-23 02:36:38,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 02:36:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-23 02:36:38,738 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-23 02:36:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_74 [2022-07-23 02:36:38,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_74 [2022-07-23 02:36:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 02:36:38,738 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-23 02:36:38,739 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-23 02:36:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rx_ring [2022-07-23 02:36:38,739 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rx_ring [2022-07-23 02:36:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-23 02:36:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-23 02:36:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-23 02:36:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-23 02:36:38,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 02:36:38,740 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-07-23 02:36:38,740 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-07-23 02:36:38,740 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-23 02:36:38,740 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-23 02:36:38,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-23 02:36:38,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-23 02:36:38,740 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hw_addr_random [2022-07-23 02:36:38,740 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hw_addr_random [2022-07-23 02:36:38,740 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-23 02:36:38,741 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-23 02:36:38,741 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-07-23 02:36:38,741 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-07-23 02:36:38,741 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_poll [2022-07-23 02:36:38,741 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_poll [2022-07-23 02:36:38,741 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-23 02:36:38,741 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-23 02:36:38,741 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-23 02:36:38,742 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-23 02:36:38,742 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-07-23 02:36:38,742 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-07-23 02:36:38,742 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-23 02:36:38,742 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-23 02:36:38,742 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-23 02:36:38,742 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-23 02:36:38,742 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_resume [2022-07-23 02:36:38,742 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_resume [2022-07-23 02:36:38,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-23 02:36:38,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-23 02:36:38,743 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2022-07-23 02:36:38,743 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2022-07-23 02:36:38,743 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_idle [2022-07-23 02:36:38,743 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_idle [2022-07-23 02:36:38,743 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_tx_timeout [2022-07-23 02:36:38,743 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_tx_timeout [2022-07-23 02:36:38,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-23 02:36:38,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-23 02:36:38,744 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-07-23 02:36:38,744 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-07-23 02:36:38,744 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-23 02:36:38,744 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-23 02:36:38,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-23 02:36:38,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-23 02:36:39,527 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 02:36:39,533 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 02:36:39,903 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 02:37:09,826 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-23 02:37:09,894 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 02:37:09,916 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 02:37:09,916 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-23 02:37:09,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:37:09 BoogieIcfgContainer [2022-07-23 02:37:09,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 02:37:09,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 02:37:09,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 02:37:09,923 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 02:37:09,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 02:36:35" (1/3) ... [2022-07-23 02:37:09,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@442756a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 02:37:09, skipping insertion in model container [2022-07-23 02:37:09,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:36:38" (2/3) ... [2022-07-23 02:37:09,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@442756a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 02:37:09, skipping insertion in model container [2022-07-23 02:37:09,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:37:09" (3/3) ... [2022-07-23 02:37:09,926 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i [2022-07-23 02:37:09,937 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 02:37:09,938 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-23 02:37:10,033 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 02:37:10,040 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@293b4ffe, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@763c7699 [2022-07-23 02:37:10,041 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-23 02:37:10,059 INFO L276 IsEmpty]: Start isEmpty. Operand has 1960 states, 1339 states have (on average 1.2763256161314414) internal successors, (1709), 1366 states have internal predecessors, (1709), 526 states have call successors, (526), 93 states have call predecessors, (526), 92 states have return successors, (520), 512 states have call predecessors, (520), 520 states have call successors, (520) [2022-07-23 02:37:10,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-07-23 02:37:10,083 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:37:10,084 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:37:10,085 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)] === [2022-07-23 02:37:10,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:37:10,090 INFO L85 PathProgramCache]: Analyzing trace with hash -511834341, now seen corresponding path program 1 times [2022-07-23 02:37:10,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:37:10,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1561892574] [2022-07-23 02:37:10,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:37:10,107 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:37:10,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:37:10,110 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) [2022-07-23 02:37:10,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-23 02:37:11,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:37:11,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 1149 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 02:37:11,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:37:11,442 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2022-07-23 02:37:11,442 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 02:37:11,443 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:37:11,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1561892574] [2022-07-23 02:37:11,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1561892574] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:37:11,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:37:11,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 02:37:11,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356458481] [2022-07-23 02:37:11,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:37:11,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 02:37:11,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:37:11,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 02:37:11,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:37:11,476 INFO L87 Difference]: Start difference. First operand has 1960 states, 1339 states have (on average 1.2763256161314414) internal successors, (1709), 1366 states have internal predecessors, (1709), 526 states have call successors, (526), 93 states have call predecessors, (526), 92 states have return successors, (520), 512 states have call predecessors, (520), 520 states have call successors, (520) Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-23 02:37:11,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:37:11,921 INFO L93 Difference]: Finished difference Result 5732 states and 8177 transitions. [2022-07-23 02:37:11,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 02:37:11,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 149 [2022-07-23 02:37:11,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:37:11,966 INFO L225 Difference]: With dead ends: 5732 [2022-07-23 02:37:11,967 INFO L226 Difference]: Without dead ends: 3789 [2022-07-23 02:37:11,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:37:11,991 INFO L413 NwaCegarLoop]: 3232 mSDtfsCounter, 2605 mSDsluCounter, 2689 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2605 SdHoareTripleChecker+Valid, 5921 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 02:37:11,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2605 Valid, 5921 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 02:37:12,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3789 states. [2022-07-23 02:37:12,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3789 to 3785. [2022-07-23 02:37:12,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3785 states, 2605 states have (on average 1.2706333973128598) internal successors, (3310), 2658 states have internal predecessors, (3310), 997 states have call successors, (997), 181 states have call predecessors, (997), 180 states have return successors, (993), 977 states have call predecessors, (993), 993 states have call successors, (993) [2022-07-23 02:37:12,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3785 states to 3785 states and 5300 transitions. [2022-07-23 02:37:12,261 INFO L78 Accepts]: Start accepts. Automaton has 3785 states and 5300 transitions. Word has length 149 [2022-07-23 02:37:12,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:37:12,264 INFO L495 AbstractCegarLoop]: Abstraction has 3785 states and 5300 transitions. [2022-07-23 02:37:12,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-23 02:37:12,265 INFO L276 IsEmpty]: Start isEmpty. Operand 3785 states and 5300 transitions. [2022-07-23 02:37:12,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-07-23 02:37:12,269 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:37:12,269 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:37:12,297 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-23 02:37:12,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:37:12,489 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)] === [2022-07-23 02:37:12,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:37:12,489 INFO L85 PathProgramCache]: Analyzing trace with hash 474246430, now seen corresponding path program 1 times [2022-07-23 02:37:12,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:37:12,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1470392675] [2022-07-23 02:37:12,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:37:12,491 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:37:12,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:37:12,499 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) [2022-07-23 02:37:12,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-23 02:37:13,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:37:13,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 1198 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 02:37:13,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:37:13,780 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2022-07-23 02:37:13,780 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 02:37:13,780 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:37:13,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1470392675] [2022-07-23 02:37:13,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1470392675] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:37:13,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:37:13,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 02:37:13,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772177844] [2022-07-23 02:37:13,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:37:13,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 02:37:13,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:37:13,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 02:37:13,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:37:13,783 INFO L87 Difference]: Start difference. First operand 3785 states and 5300 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-23 02:37:14,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:37:14,214 INFO L93 Difference]: Finished difference Result 11169 states and 15652 transitions. [2022-07-23 02:37:14,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 02:37:14,215 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 153 [2022-07-23 02:37:14,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:37:14,437 INFO L225 Difference]: With dead ends: 11169 [2022-07-23 02:37:14,438 INFO L226 Difference]: Without dead ends: 7411 [2022-07-23 02:37:14,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:37:14,454 INFO L413 NwaCegarLoop]: 3243 mSDtfsCounter, 2650 mSDsluCounter, 2644 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2650 SdHoareTripleChecker+Valid, 5887 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 02:37:14,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2650 Valid, 5887 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 02:37:14,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7411 states. [2022-07-23 02:37:14,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7411 to 7382. [2022-07-23 02:37:14,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7382 states, 5092 states have (on average 1.2723880597014925) internal successors, (6479), 5200 states have internal predecessors, (6479), 1932 states have call successors, (1932), 360 states have call predecessors, (1932), 355 states have return successors, (1934), 1883 states have call predecessors, (1934), 1928 states have call successors, (1934) [2022-07-23 02:37:14,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7382 states to 7382 states and 10345 transitions. [2022-07-23 02:37:14,726 INFO L78 Accepts]: Start accepts. Automaton has 7382 states and 10345 transitions. Word has length 153 [2022-07-23 02:37:14,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:37:14,728 INFO L495 AbstractCegarLoop]: Abstraction has 7382 states and 10345 transitions. [2022-07-23 02:37:14,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-23 02:37:14,728 INFO L276 IsEmpty]: Start isEmpty. Operand 7382 states and 10345 transitions. [2022-07-23 02:37:14,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-23 02:37:14,731 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:37:14,732 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:37:14,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-23 02:37:14,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:37:14,959 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)] === [2022-07-23 02:37:14,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:37:14,960 INFO L85 PathProgramCache]: Analyzing trace with hash 501804944, now seen corresponding path program 1 times [2022-07-23 02:37:14,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:37:14,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2042047405] [2022-07-23 02:37:14,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:37:14,961 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:37:14,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:37:14,963 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) [2022-07-23 02:37:14,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-23 02:37:15,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:37:16,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 1187 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 02:37:16,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:37:16,115 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2022-07-23 02:37:16,115 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 02:37:16,115 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:37:16,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2042047405] [2022-07-23 02:37:16,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2042047405] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:37:16,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:37:16,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 02:37:16,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984905912] [2022-07-23 02:37:16,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:37:16,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 02:37:16,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:37:16,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 02:37:16,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:37:16,117 INFO L87 Difference]: Start difference. First operand 7382 states and 10345 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-23 02:37:16,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:37:16,991 INFO L93 Difference]: Finished difference Result 20898 states and 29297 transitions. [2022-07-23 02:37:16,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 02:37:16,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 156 [2022-07-23 02:37:16,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:37:17,125 INFO L225 Difference]: With dead ends: 20898 [2022-07-23 02:37:17,126 INFO L226 Difference]: Without dead ends: 13543 [2022-07-23 02:37:17,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:37:17,166 INFO L413 NwaCegarLoop]: 3177 mSDtfsCounter, 2268 mSDsluCounter, 2627 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2268 SdHoareTripleChecker+Valid, 5804 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-23 02:37:17,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2268 Valid, 5804 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-23 02:37:17,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13543 states. [2022-07-23 02:37:17,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13543 to 13512. [2022-07-23 02:37:17,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13512 states, 9242 states have (on average 1.2716944384332396) internal successors, (11753), 9448 states have internal predecessors, (11753), 3584 states have call successors, (3584), 694 states have call predecessors, (3584), 683 states have return successors, (3594), 3487 states have call predecessors, (3594), 3580 states have call successors, (3594) [2022-07-23 02:37:17,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13512 states to 13512 states and 18931 transitions. [2022-07-23 02:37:17,830 INFO L78 Accepts]: Start accepts. Automaton has 13512 states and 18931 transitions. Word has length 156 [2022-07-23 02:37:17,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:37:17,831 INFO L495 AbstractCegarLoop]: Abstraction has 13512 states and 18931 transitions. [2022-07-23 02:37:17,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-23 02:37:17,832 INFO L276 IsEmpty]: Start isEmpty. Operand 13512 states and 18931 transitions. [2022-07-23 02:37:17,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-07-23 02:37:17,834 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:37:17,834 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 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] [2022-07-23 02:37:17,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-23 02:37:18,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:37:18,056 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)] === [2022-07-23 02:37:18,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:37:18,056 INFO L85 PathProgramCache]: Analyzing trace with hash -585811610, now seen corresponding path program 1 times [2022-07-23 02:37:18,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:37:18,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1442517549] [2022-07-23 02:37:18,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:37:18,057 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:37:18,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:37:18,059 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) [2022-07-23 02:37:18,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-23 02:37:19,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:37:19,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 1270 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 02:37:19,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:37:19,288 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2022-07-23 02:37:19,288 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 02:37:19,288 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:37:19,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1442517549] [2022-07-23 02:37:19,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1442517549] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:37:19,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:37:19,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 02:37:19,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397672479] [2022-07-23 02:37:19,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:37:19,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 02:37:19,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:37:19,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 02:37:19,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:37:19,289 INFO L87 Difference]: Start difference. First operand 13512 states and 18931 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-23 02:37:19,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:37:19,902 INFO L93 Difference]: Finished difference Result 24124 states and 33746 transitions. [2022-07-23 02:37:19,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 02:37:19,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 165 [2022-07-23 02:37:19,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:37:19,967 INFO L225 Difference]: With dead ends: 24124 [2022-07-23 02:37:19,968 INFO L226 Difference]: Without dead ends: 10639 [2022-07-23 02:37:20,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:37:20,238 INFO L413 NwaCegarLoop]: 3786 mSDtfsCounter, 1536 mSDsluCounter, 2660 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1536 SdHoareTripleChecker+Valid, 6446 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 02:37:20,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1536 Valid, 6446 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 02:37:20,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10639 states. [2022-07-23 02:37:20,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10639 to 10608. [2022-07-23 02:37:20,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10608 states, 7330 states have (on average 1.2724420190995906) internal successors, (9327), 7483 states have internal predecessors, (9327), 2702 states have call successors, (2702), 583 states have call predecessors, (2702), 573 states have return successors, (2705), 2623 states have call predecessors, (2705), 2698 states have call successors, (2705) [2022-07-23 02:37:20,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10608 states to 10608 states and 14734 transitions. [2022-07-23 02:37:20,562 INFO L78 Accepts]: Start accepts. Automaton has 10608 states and 14734 transitions. Word has length 165 [2022-07-23 02:37:20,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:37:20,562 INFO L495 AbstractCegarLoop]: Abstraction has 10608 states and 14734 transitions. [2022-07-23 02:37:20,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-23 02:37:20,563 INFO L276 IsEmpty]: Start isEmpty. Operand 10608 states and 14734 transitions. [2022-07-23 02:37:20,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-07-23 02:37:20,566 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:37:20,566 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:37:20,601 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-23 02:37:20,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:37:20,783 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)] === [2022-07-23 02:37:20,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:37:20,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1098294467, now seen corresponding path program 1 times [2022-07-23 02:37:20,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:37:20,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [944038612] [2022-07-23 02:37:20,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:37:20,785 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:37:20,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:37:20,788 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) [2022-07-23 02:37:20,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-23 02:37:21,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:37:21,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 1274 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 02:37:21,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:37:22,768 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 679 trivial. 0 not checked. [2022-07-23 02:37:22,768 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 02:37:22,768 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:37:22,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [944038612] [2022-07-23 02:37:22,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [944038612] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:37:22,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:37:22,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 02:37:22,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104695993] [2022-07-23 02:37:22,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:37:22,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:37:22,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:37:22,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:37:22,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 02:37:22,773 INFO L87 Difference]: Start difference. First operand 10608 states and 14734 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-07-23 02:37:23,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:37:23,088 INFO L93 Difference]: Finished difference Result 10614 states and 14739 transitions. [2022-07-23 02:37:23,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 02:37:23,089 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 205 [2022-07-23 02:37:23,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:37:23,152 INFO L225 Difference]: With dead ends: 10614 [2022-07-23 02:37:23,152 INFO L226 Difference]: Without dead ends: 10612 [2022-07-23 02:37:23,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:37:23,164 INFO L413 NwaCegarLoop]: 2722 mSDtfsCounter, 2638 mSDsluCounter, 5432 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2639 SdHoareTripleChecker+Valid, 8154 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 02:37:23,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2639 Valid, 8154 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 02:37:23,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10612 states. [2022-07-23 02:37:23,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10612 to 10612. [2022-07-23 02:37:23,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10612 states, 7333 states have (on average 1.272330560480022) internal successors, (9330), 7486 states have internal predecessors, (9330), 2702 states have call successors, (2702), 584 states have call predecessors, (2702), 574 states have return successors, (2705), 2623 states have call predecessors, (2705), 2698 states have call successors, (2705) [2022-07-23 02:37:23,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10612 states to 10612 states and 14737 transitions. [2022-07-23 02:37:23,611 INFO L78 Accepts]: Start accepts. Automaton has 10612 states and 14737 transitions. Word has length 205 [2022-07-23 02:37:23,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:37:23,612 INFO L495 AbstractCegarLoop]: Abstraction has 10612 states and 14737 transitions. [2022-07-23 02:37:23,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-07-23 02:37:23,612 INFO L276 IsEmpty]: Start isEmpty. Operand 10612 states and 14737 transitions. [2022-07-23 02:37:23,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-07-23 02:37:23,615 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:37:23,615 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 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] [2022-07-23 02:37:23,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-23 02:37:23,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:37:23,842 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)] === [2022-07-23 02:37:23,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:37:23,843 INFO L85 PathProgramCache]: Analyzing trace with hash 2033981501, now seen corresponding path program 1 times [2022-07-23 02:37:23,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:37:23,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [418717372] [2022-07-23 02:37:23,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:37:23,844 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:37:23,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:37:23,846 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) [2022-07-23 02:37:23,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-23 02:37:24,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:37:24,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 1281 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 02:37:24,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:37:25,695 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 679 trivial. 0 not checked. [2022-07-23 02:37:25,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 02:37:26,172 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 679 trivial. 0 not checked. [2022-07-23 02:37:26,172 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:37:26,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [418717372] [2022-07-23 02:37:26,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [418717372] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 02:37:26,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 02:37:26,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 02:37:26,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194214253] [2022-07-23 02:37:26,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:37:26,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:37:26,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:37:26,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:37:26,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:37:26,174 INFO L87 Difference]: Start difference. First operand 10612 states and 14737 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-23 02:37:26,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:37:26,596 INFO L93 Difference]: Finished difference Result 10618 states and 14742 transitions. [2022-07-23 02:37:26,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 02:37:26,597 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 210 [2022-07-23 02:37:26,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:37:26,639 INFO L225 Difference]: With dead ends: 10618 [2022-07-23 02:37:26,639 INFO L226 Difference]: Without dead ends: 10616 [2022-07-23 02:37:26,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 02:37:26,646 INFO L413 NwaCegarLoop]: 2725 mSDtfsCounter, 2658 mSDsluCounter, 5431 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2668 SdHoareTripleChecker+Valid, 8156 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 02:37:26,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2668 Valid, 8156 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 02:37:26,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10616 states. [2022-07-23 02:37:26,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10616 to 10616. [2022-07-23 02:37:26,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10616 states, 7336 states have (on average 1.2722191930207198) internal successors, (9333), 7489 states have internal predecessors, (9333), 2702 states have call successors, (2702), 585 states have call predecessors, (2702), 575 states have return successors, (2705), 2623 states have call predecessors, (2705), 2698 states have call successors, (2705) [2022-07-23 02:37:27,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10616 states to 10616 states and 14740 transitions. [2022-07-23 02:37:27,050 INFO L78 Accepts]: Start accepts. Automaton has 10616 states and 14740 transitions. Word has length 210 [2022-07-23 02:37:27,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:37:27,054 INFO L495 AbstractCegarLoop]: Abstraction has 10616 states and 14740 transitions. [2022-07-23 02:37:27,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-23 02:37:27,054 INFO L276 IsEmpty]: Start isEmpty. Operand 10616 states and 14740 transitions. [2022-07-23 02:37:27,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-07-23 02:37:27,057 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:37:27,058 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 3, 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] [2022-07-23 02:37:27,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-23 02:37:27,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:37:27,284 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)] === [2022-07-23 02:37:27,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:37:27,284 INFO L85 PathProgramCache]: Analyzing trace with hash 567579389, now seen corresponding path program 1 times [2022-07-23 02:37:27,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:37:27,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [427705706] [2022-07-23 02:37:27,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:37:27,285 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:37:27,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:37:27,287 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) [2022-07-23 02:37:27,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-23 02:37:28,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:37:28,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 1288 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 02:37:28,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:37:29,298 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2022-07-23 02:37:29,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 02:37:29,773 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2022-07-23 02:37:29,773 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:37:29,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [427705706] [2022-07-23 02:37:29,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [427705706] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 02:37:29,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 02:37:29,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 02:37:29,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349607611] [2022-07-23 02:37:29,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:37:29,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:37:29,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:37:29,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:37:29,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:37:29,775 INFO L87 Difference]: Start difference. First operand 10616 states and 14740 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-23 02:37:30,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:37:30,222 INFO L93 Difference]: Finished difference Result 10622 states and 14745 transitions. [2022-07-23 02:37:30,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 02:37:30,223 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 215 [2022-07-23 02:37:30,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:37:30,269 INFO L225 Difference]: With dead ends: 10622 [2022-07-23 02:37:30,269 INFO L226 Difference]: Without dead ends: 10620 [2022-07-23 02:37:30,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 423 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 02:37:30,279 INFO L413 NwaCegarLoop]: 2725 mSDtfsCounter, 2658 mSDsluCounter, 5431 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2667 SdHoareTripleChecker+Valid, 8156 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 02:37:30,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2667 Valid, 8156 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 02:37:30,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10620 states. [2022-07-23 02:37:30,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10620 to 10620. [2022-07-23 02:37:30,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10620 states, 7339 states have (on average 1.2721079166098923) internal successors, (9336), 7492 states have internal predecessors, (9336), 2702 states have call successors, (2702), 586 states have call predecessors, (2702), 576 states have return successors, (2705), 2623 states have call predecessors, (2705), 2698 states have call successors, (2705) [2022-07-23 02:37:30,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10620 states to 10620 states and 14743 transitions. [2022-07-23 02:37:30,775 INFO L78 Accepts]: Start accepts. Automaton has 10620 states and 14743 transitions. Word has length 215 [2022-07-23 02:37:30,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:37:30,776 INFO L495 AbstractCegarLoop]: Abstraction has 10620 states and 14743 transitions. [2022-07-23 02:37:30,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-23 02:37:30,776 INFO L276 IsEmpty]: Start isEmpty. Operand 10620 states and 14743 transitions. [2022-07-23 02:37:30,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-07-23 02:37:30,780 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:37:30,781 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:37:30,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-23 02:37:30,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:37:30,999 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:37:31,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:37:31,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1378185684, now seen corresponding path program 1 times [2022-07-23 02:37:31,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:37:31,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1184717259] [2022-07-23 02:37:31,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:37:31,001 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:37:31,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:37:31,003 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) [2022-07-23 02:37:31,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-23 02:37:32,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:37:32,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 1342 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 02:37:32,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:37:32,300 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2022-07-23 02:37:32,300 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 02:37:32,301 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:37:32,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1184717259] [2022-07-23 02:37:32,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1184717259] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:37:32,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:37:32,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 02:37:32,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851687587] [2022-07-23 02:37:32,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:37:32,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 02:37:32,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:37:32,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 02:37:32,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:37:32,304 INFO L87 Difference]: Start difference. First operand 10620 states and 14743 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2022-07-23 02:37:33,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:37:33,158 INFO L93 Difference]: Finished difference Result 30593 states and 42516 transitions. [2022-07-23 02:37:33,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 02:37:33,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 231 [2022-07-23 02:37:33,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:37:33,263 INFO L225 Difference]: With dead ends: 30593 [2022-07-23 02:37:33,264 INFO L226 Difference]: Without dead ends: 20367 [2022-07-23 02:37:33,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:37:33,303 INFO L413 NwaCegarLoop]: 3689 mSDtfsCounter, 2600 mSDsluCounter, 2700 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2600 SdHoareTripleChecker+Valid, 6389 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 02:37:33,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2600 Valid, 6389 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 02:37:33,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20367 states. [2022-07-23 02:37:34,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20367 to 20333. [2022-07-23 02:37:34,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20333 states, 14087 states have (on average 1.272733726130475) internal successors, (17929), 14361 states have internal predecessors, (17929), 5145 states have call successors, (5145), 1113 states have call predecessors, (5145), 1098 states have return successors, (5155), 5020 states have call predecessors, (5155), 5141 states have call successors, (5155) [2022-07-23 02:37:34,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20333 states to 20333 states and 28229 transitions. [2022-07-23 02:37:34,216 INFO L78 Accepts]: Start accepts. Automaton has 20333 states and 28229 transitions. Word has length 231 [2022-07-23 02:37:34,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:37:34,216 INFO L495 AbstractCegarLoop]: Abstraction has 20333 states and 28229 transitions. [2022-07-23 02:37:34,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2022-07-23 02:37:34,217 INFO L276 IsEmpty]: Start isEmpty. Operand 20333 states and 28229 transitions. [2022-07-23 02:37:34,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-07-23 02:37:34,222 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:37:34,222 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:37:34,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-23 02:37:34,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:37:34,431 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)] === [2022-07-23 02:37:34,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:37:34,432 INFO L85 PathProgramCache]: Analyzing trace with hash 650400426, now seen corresponding path program 1 times [2022-07-23 02:37:34,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:37:34,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [478207943] [2022-07-23 02:37:34,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:37:34,433 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:37:34,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:37:34,435 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) [2022-07-23 02:37:34,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-23 02:37:35,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:37:35,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 1342 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 02:37:35,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:37:35,668 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2022-07-23 02:37:35,669 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 02:37:35,669 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:37:35,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [478207943] [2022-07-23 02:37:35,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [478207943] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:37:35,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:37:35,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 02:37:35,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234377052] [2022-07-23 02:37:35,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:37:35,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 02:37:35,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:37:35,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 02:37:35,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:37:35,671 INFO L87 Difference]: Start difference. First operand 20333 states and 28229 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2022-07-23 02:37:36,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:37:36,893 INFO L93 Difference]: Finished difference Result 49981 states and 69435 transitions. [2022-07-23 02:37:36,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 02:37:36,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 231 [2022-07-23 02:37:36,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:37:37,049 INFO L225 Difference]: With dead ends: 49981 [2022-07-23 02:37:37,050 INFO L226 Difference]: Without dead ends: 30042 [2022-07-23 02:37:37,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:37:37,239 INFO L413 NwaCegarLoop]: 5222 mSDtfsCounter, 2573 mSDsluCounter, 2698 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2573 SdHoareTripleChecker+Valid, 7920 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 02:37:37,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2573 Valid, 7920 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 02:37:37,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30042 states. [2022-07-23 02:37:38,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30042 to 30038. [2022-07-23 02:37:38,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30038 states, 20827 states have (on average 1.2730590099390215) internal successors, (26514), 21222 states have internal predecessors, (26514), 7588 states have call successors, (7588), 1640 states have call predecessors, (7588), 1620 states have return successors, (7605), 7417 states have call predecessors, (7605), 7584 states have call successors, (7605) [2022-07-23 02:37:38,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30038 states to 30038 states and 41707 transitions. [2022-07-23 02:37:38,476 INFO L78 Accepts]: Start accepts. Automaton has 30038 states and 41707 transitions. Word has length 231 [2022-07-23 02:37:38,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:37:38,477 INFO L495 AbstractCegarLoop]: Abstraction has 30038 states and 41707 transitions. [2022-07-23 02:37:38,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2022-07-23 02:37:38,477 INFO L276 IsEmpty]: Start isEmpty. Operand 30038 states and 41707 transitions. [2022-07-23 02:37:38,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-07-23 02:37:38,483 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:37:38,483 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:37:38,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-23 02:37:38,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:37:38,699 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)] === [2022-07-23 02:37:38,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:37:38,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1892161539, now seen corresponding path program 1 times [2022-07-23 02:37:38,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:37:38,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1843884471] [2022-07-23 02:37:38,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:37:38,701 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:37:38,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:37:38,703 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) [2022-07-23 02:37:38,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-23 02:37:39,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:37:39,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 1295 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 02:37:39,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:37:40,864 INFO L134 CoverageAnalysis]: Checked inductivity of 697 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 691 trivial. 0 not checked. [2022-07-23 02:37:40,864 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 02:37:41,365 INFO L134 CoverageAnalysis]: Checked inductivity of 697 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 691 trivial. 0 not checked. [2022-07-23 02:37:41,366 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:37:41,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1843884471] [2022-07-23 02:37:41,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1843884471] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 02:37:41,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 02:37:41,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 02:37:41,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067222134] [2022-07-23 02:37:41,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:37:41,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:37:41,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:37:41,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:37:41,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:37:41,367 INFO L87 Difference]: Start difference. First operand 30038 states and 41707 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-23 02:37:42,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:37:42,234 INFO L93 Difference]: Finished difference Result 30044 states and 41712 transitions. [2022-07-23 02:37:42,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 02:37:42,234 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 220 [2022-07-23 02:37:42,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:37:42,404 INFO L225 Difference]: With dead ends: 30044 [2022-07-23 02:37:42,404 INFO L226 Difference]: Without dead ends: 30042 [2022-07-23 02:37:42,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 433 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 02:37:42,431 INFO L413 NwaCegarLoop]: 2725 mSDtfsCounter, 2658 mSDsluCounter, 5431 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2666 SdHoareTripleChecker+Valid, 8156 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 02:37:42,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2666 Valid, 8156 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 02:37:42,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30042 states. [2022-07-23 02:37:43,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30042 to 30042. [2022-07-23 02:37:43,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30042 states, 20830 states have (on average 1.273019683149304) internal successors, (26517), 21225 states have internal predecessors, (26517), 7588 states have call successors, (7588), 1641 states have call predecessors, (7588), 1621 states have return successors, (7605), 7417 states have call predecessors, (7605), 7584 states have call successors, (7605) [2022-07-23 02:37:43,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30042 states to 30042 states and 41710 transitions. [2022-07-23 02:37:43,734 INFO L78 Accepts]: Start accepts. Automaton has 30042 states and 41710 transitions. Word has length 220 [2022-07-23 02:37:43,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:37:43,737 INFO L495 AbstractCegarLoop]: Abstraction has 30042 states and 41710 transitions. [2022-07-23 02:37:43,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-23 02:37:43,737 INFO L276 IsEmpty]: Start isEmpty. Operand 30042 states and 41710 transitions. [2022-07-23 02:37:43,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-07-23 02:37:43,742 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:37:43,742 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:37:43,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-23 02:37:43,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:37:43,967 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)] === [2022-07-23 02:37:43,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:37:43,968 INFO L85 PathProgramCache]: Analyzing trace with hash 331270845, now seen corresponding path program 1 times [2022-07-23 02:37:43,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:37:43,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [91249404] [2022-07-23 02:37:43,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:37:43,969 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:37:43,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:37:43,970 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) [2022-07-23 02:37:43,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-23 02:37:45,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:37:45,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 1302 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 02:37:45,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:37:45,945 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2022-07-23 02:37:45,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 02:37:46,466 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2022-07-23 02:37:46,466 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:37:46,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [91249404] [2022-07-23 02:37:46,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [91249404] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 02:37:46,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 02:37:46,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 02:37:46,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118935528] [2022-07-23 02:37:46,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:37:46,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:37:46,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:37:46,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:37:46,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:37:46,468 INFO L87 Difference]: Start difference. First operand 30042 states and 41710 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-23 02:37:47,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:37:47,392 INFO L93 Difference]: Finished difference Result 30048 states and 41715 transitions. [2022-07-23 02:37:47,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 02:37:47,393 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 225 [2022-07-23 02:37:47,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:37:47,534 INFO L225 Difference]: With dead ends: 30048 [2022-07-23 02:37:47,534 INFO L226 Difference]: Without dead ends: 30046 [2022-07-23 02:37:47,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 02:37:47,561 INFO L413 NwaCegarLoop]: 2725 mSDtfsCounter, 2658 mSDsluCounter, 5431 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2665 SdHoareTripleChecker+Valid, 8156 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 02:37:47,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2665 Valid, 8156 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 02:37:47,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30046 states. [2022-07-23 02:37:48,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30046 to 30046. [2022-07-23 02:37:48,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30046 states, 20833 states have (on average 1.272980367685883) internal successors, (26520), 21228 states have internal predecessors, (26520), 7588 states have call successors, (7588), 1642 states have call predecessors, (7588), 1622 states have return successors, (7605), 7417 states have call predecessors, (7605), 7584 states have call successors, (7605) [2022-07-23 02:37:48,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30046 states to 30046 states and 41713 transitions. [2022-07-23 02:37:48,779 INFO L78 Accepts]: Start accepts. Automaton has 30046 states and 41713 transitions. Word has length 225 [2022-07-23 02:37:48,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:37:48,779 INFO L495 AbstractCegarLoop]: Abstraction has 30046 states and 41713 transitions. [2022-07-23 02:37:48,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-23 02:37:48,780 INFO L276 IsEmpty]: Start isEmpty. Operand 30046 states and 41713 transitions. [2022-07-23 02:37:48,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-07-23 02:37:48,900 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:37:48,916 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 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] [2022-07-23 02:37:48,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-23 02:37:49,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:37:49,117 INFO L420 AbstractCegarLoop]: === Iteration 12 === 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)] === [2022-07-23 02:37:49,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:37:49,118 INFO L85 PathProgramCache]: Analyzing trace with hash 800071140, now seen corresponding path program 1 times [2022-07-23 02:37:49,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:37:49,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [217916946] [2022-07-23 02:37:49,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:37:49,119 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:37:49,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:37:49,120 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) [2022-07-23 02:37:49,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-23 02:37:50,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:37:50,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 1412 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 02:37:50,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:37:50,420 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 582 trivial. 0 not checked. [2022-07-23 02:37:50,421 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 02:37:50,421 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:37:50,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [217916946] [2022-07-23 02:37:50,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [217916946] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:37:50,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:37:50,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 02:37:50,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909783700] [2022-07-23 02:37:50,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:37:50,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 02:37:50,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:37:50,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 02:37:50,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:37:50,423 INFO L87 Difference]: Start difference. First operand 30046 states and 41713 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-23 02:37:52,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:37:52,125 INFO L93 Difference]: Finished difference Result 69309 states and 96173 transitions. [2022-07-23 02:37:52,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 02:37:52,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 229 [2022-07-23 02:37:52,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:37:52,290 INFO L225 Difference]: With dead ends: 69309 [2022-07-23 02:37:52,291 INFO L226 Difference]: Without dead ends: 39657 [2022-07-23 02:37:52,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:37:52,394 INFO L413 NwaCegarLoop]: 4199 mSDtfsCounter, 1520 mSDsluCounter, 2661 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 6860 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 02:37:52,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1520 Valid, 6860 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 02:37:52,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39657 states. [2022-07-23 02:37:53,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39657 to 39606. [2022-07-23 02:37:53,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39606 states, 27615 states have (on average 1.2736556219445954) internal successors, (35172), 28101 states have internal predecessors, (35172), 9790 states have call successors, (9790), 2222 states have call predecessors, (9790), 2198 states have return successors, (9807), 9587 states have call predecessors, (9807), 9786 states have call successors, (9807) [2022-07-23 02:37:54,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39606 states to 39606 states and 54769 transitions. [2022-07-23 02:37:54,063 INFO L78 Accepts]: Start accepts. Automaton has 39606 states and 54769 transitions. Word has length 229 [2022-07-23 02:37:54,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:37:54,064 INFO L495 AbstractCegarLoop]: Abstraction has 39606 states and 54769 transitions. [2022-07-23 02:37:54,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-23 02:37:54,065 INFO L276 IsEmpty]: Start isEmpty. Operand 39606 states and 54769 transitions. [2022-07-23 02:37:54,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-07-23 02:37:54,081 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:37:54,081 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:37:54,119 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-23 02:37:54,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:37:54,304 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)] === [2022-07-23 02:37:54,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:37:54,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1643427773, now seen corresponding path program 1 times [2022-07-23 02:37:54,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:37:54,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1220071208] [2022-07-23 02:37:54,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:37:54,306 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:37:54,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:37:54,309 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) [2022-07-23 02:37:54,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-23 02:37:55,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:37:55,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 1309 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 02:37:55,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:37:56,063 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 719 trivial. 0 not checked. [2022-07-23 02:37:56,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 02:37:56,419 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 719 trivial. 0 not checked. [2022-07-23 02:37:56,420 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:37:56,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1220071208] [2022-07-23 02:37:56,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1220071208] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 02:37:56,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 02:37:56,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 02:37:56,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737660761] [2022-07-23 02:37:56,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:37:56,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:37:56,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:37:56,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:37:56,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:37:56,423 INFO L87 Difference]: Start difference. First operand 39606 states and 54769 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-23 02:37:57,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:37:57,640 INFO L93 Difference]: Finished difference Result 39612 states and 54774 transitions. [2022-07-23 02:37:57,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 02:37:57,641 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 230 [2022-07-23 02:37:57,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:37:57,838 INFO L225 Difference]: With dead ends: 39612 [2022-07-23 02:37:57,839 INFO L226 Difference]: Without dead ends: 39610 [2022-07-23 02:37:57,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 453 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 02:37:57,867 INFO L413 NwaCegarLoop]: 2725 mSDtfsCounter, 2658 mSDsluCounter, 5431 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2664 SdHoareTripleChecker+Valid, 8156 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 02:37:57,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2664 Valid, 8156 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 02:37:57,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39610 states. [2022-07-23 02:37:59,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39610 to 39610. [2022-07-23 02:37:59,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39610 states, 27618 states have (on average 1.2736258961546818) internal successors, (35175), 28104 states have internal predecessors, (35175), 9790 states have call successors, (9790), 2223 states have call predecessors, (9790), 2199 states have return successors, (9807), 9587 states have call predecessors, (9807), 9786 states have call successors, (9807) [2022-07-23 02:37:59,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39610 states to 39610 states and 54772 transitions. [2022-07-23 02:37:59,475 INFO L78 Accepts]: Start accepts. Automaton has 39610 states and 54772 transitions. Word has length 230 [2022-07-23 02:37:59,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:37:59,476 INFO L495 AbstractCegarLoop]: Abstraction has 39610 states and 54772 transitions. [2022-07-23 02:37:59,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-23 02:37:59,476 INFO L276 IsEmpty]: Start isEmpty. Operand 39610 states and 54772 transitions. [2022-07-23 02:37:59,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-07-23 02:37:59,480 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:37:59,480 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 7, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:37:59,508 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-23 02:37:59,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:37:59,703 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)] === [2022-07-23 02:37:59,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:37:59,704 INFO L85 PathProgramCache]: Analyzing trace with hash 428343933, now seen corresponding path program 1 times [2022-07-23 02:37:59,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:37:59,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [270529728] [2022-07-23 02:37:59,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:37:59,705 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:37:59,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:37:59,706 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) [2022-07-23 02:37:59,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-23 02:38:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:00,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 1316 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 02:38:00,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:38:01,754 INFO L134 CoverageAnalysis]: Checked inductivity of 751 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 739 trivial. 0 not checked. [2022-07-23 02:38:01,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 02:38:02,190 INFO L134 CoverageAnalysis]: Checked inductivity of 751 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 739 trivial. 0 not checked. [2022-07-23 02:38:02,190 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:38:02,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [270529728] [2022-07-23 02:38:02,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [270529728] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 02:38:02,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 02:38:02,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 02:38:02,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594109381] [2022-07-23 02:38:02,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:38:02,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:38:02,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:38:02,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:38:02,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:38:02,192 INFO L87 Difference]: Start difference. First operand 39610 states and 54772 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-23 02:38:03,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:38:03,610 INFO L93 Difference]: Finished difference Result 41497 states and 56577 transitions. [2022-07-23 02:38:03,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 02:38:03,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 235 [2022-07-23 02:38:03,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:38:03,826 INFO L225 Difference]: With dead ends: 41497 [2022-07-23 02:38:03,826 INFO L226 Difference]: Without dead ends: 41495 [2022-07-23 02:38:03,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 471 GetRequests, 463 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 02:38:03,855 INFO L413 NwaCegarLoop]: 2820 mSDtfsCounter, 2378 mSDsluCounter, 6048 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2383 SdHoareTripleChecker+Valid, 8868 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 02:38:03,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2383 Valid, 8868 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 02:38:03,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41495 states. [2022-07-23 02:38:05,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41495 to 41495. [2022-07-23 02:38:05,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41495 states, 28905 states have (on average 1.26476388168137) internal successors, (36558), 29397 states have internal predecessors, (36558), 10000 states have call successors, (10000), 2611 states have call predecessors, (10000), 2587 states have return successors, (10017), 9797 states have call predecessors, (10017), 9996 states have call successors, (10017) [2022-07-23 02:38:05,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41495 states to 41495 states and 56575 transitions. [2022-07-23 02:38:05,516 INFO L78 Accepts]: Start accepts. Automaton has 41495 states and 56575 transitions. Word has length 235 [2022-07-23 02:38:05,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:38:05,517 INFO L495 AbstractCegarLoop]: Abstraction has 41495 states and 56575 transitions. [2022-07-23 02:38:05,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-23 02:38:05,517 INFO L276 IsEmpty]: Start isEmpty. Operand 41495 states and 56575 transitions. [2022-07-23 02:38:05,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-07-23 02:38:05,520 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:38:05,521 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 8, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:38:05,547 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-23 02:38:05,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:38:05,735 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)] === [2022-07-23 02:38:05,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:38:05,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1271756931, now seen corresponding path program 1 times [2022-07-23 02:38:05,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:38:05,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [242514266] [2022-07-23 02:38:05,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:38:05,737 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:38:05,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:38:05,742 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) [2022-07-23 02:38:05,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-23 02:38:06,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:06,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 1323 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 02:38:06,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:38:07,730 INFO L134 CoverageAnalysis]: Checked inductivity of 777 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 763 trivial. 0 not checked. [2022-07-23 02:38:07,730 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 02:38:08,131 INFO L134 CoverageAnalysis]: Checked inductivity of 777 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 763 trivial. 0 not checked. [2022-07-23 02:38:08,131 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:38:08,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [242514266] [2022-07-23 02:38:08,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [242514266] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 02:38:08,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 02:38:08,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 02:38:08,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286036422] [2022-07-23 02:38:08,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:38:08,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:38:08,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:38:08,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:38:08,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:38:08,134 INFO L87 Difference]: Start difference. First operand 41495 states and 56575 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-23 02:38:09,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:38:09,648 INFO L93 Difference]: Finished difference Result 41501 states and 56580 transitions. [2022-07-23 02:38:09,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 02:38:09,648 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 240 [2022-07-23 02:38:09,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:38:09,957 INFO L225 Difference]: With dead ends: 41501 [2022-07-23 02:38:09,957 INFO L226 Difference]: Without dead ends: 41499 [2022-07-23 02:38:09,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 481 GetRequests, 473 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 02:38:09,977 INFO L413 NwaCegarLoop]: 2725 mSDtfsCounter, 2658 mSDsluCounter, 5431 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2662 SdHoareTripleChecker+Valid, 8156 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 02:38:09,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2662 Valid, 8156 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 02:38:10,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41499 states. [2022-07-23 02:38:11,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41499 to 41499. [2022-07-23 02:38:11,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41499 states, 28908 states have (on average 1.264736405147364) internal successors, (36561), 29400 states have internal predecessors, (36561), 10000 states have call successors, (10000), 2612 states have call predecessors, (10000), 2588 states have return successors, (10017), 9797 states have call predecessors, (10017), 9996 states have call successors, (10017) [2022-07-23 02:38:11,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41499 states to 41499 states and 56578 transitions. [2022-07-23 02:38:11,777 INFO L78 Accepts]: Start accepts. Automaton has 41499 states and 56578 transitions. Word has length 240 [2022-07-23 02:38:11,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:38:11,778 INFO L495 AbstractCegarLoop]: Abstraction has 41499 states and 56578 transitions. [2022-07-23 02:38:11,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-23 02:38:11,778 INFO L276 IsEmpty]: Start isEmpty. Operand 41499 states and 56578 transitions. [2022-07-23 02:38:11,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-07-23 02:38:11,782 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:38:11,783 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 9, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:38:11,822 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2022-07-23 02:38:12,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:38:12,003 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)] === [2022-07-23 02:38:12,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:38:12,004 INFO L85 PathProgramCache]: Analyzing trace with hash 678443581, now seen corresponding path program 1 times [2022-07-23 02:38:12,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:38:12,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [876110172] [2022-07-23 02:38:12,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:38:12,005 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:38:12,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:38:12,007 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) [2022-07-23 02:38:12,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-23 02:38:13,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:13,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 1330 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 02:38:13,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:38:14,089 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 791 trivial. 0 not checked. [2022-07-23 02:38:14,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 02:38:14,498 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 791 trivial. 0 not checked. [2022-07-23 02:38:14,498 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:38:14,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [876110172] [2022-07-23 02:38:14,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [876110172] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 02:38:14,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 02:38:14,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 02:38:14,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278144178] [2022-07-23 02:38:14,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:38:14,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:38:14,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:38:14,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:38:14,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:38:14,501 INFO L87 Difference]: Start difference. First operand 41499 states and 56578 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-23 02:38:15,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:38:15,799 INFO L93 Difference]: Finished difference Result 41505 states and 56583 transitions. [2022-07-23 02:38:15,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 02:38:15,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 245 [2022-07-23 02:38:15,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:38:15,996 INFO L225 Difference]: With dead ends: 41505 [2022-07-23 02:38:15,996 INFO L226 Difference]: Without dead ends: 41503 [2022-07-23 02:38:16,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 483 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 02:38:16,029 INFO L413 NwaCegarLoop]: 2725 mSDtfsCounter, 2658 mSDsluCounter, 5431 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2661 SdHoareTripleChecker+Valid, 8156 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 02:38:16,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2661 Valid, 8156 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 02:38:16,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41503 states. [2022-07-23 02:38:17,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41503 to 41503. [2022-07-23 02:38:17,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41503 states, 28911 states have (on average 1.2647089343156583) internal successors, (36564), 29403 states have internal predecessors, (36564), 10000 states have call successors, (10000), 2613 states have call predecessors, (10000), 2589 states have return successors, (10017), 9797 states have call predecessors, (10017), 9996 states have call successors, (10017) [2022-07-23 02:38:17,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41503 states to 41503 states and 56581 transitions. [2022-07-23 02:38:17,755 INFO L78 Accepts]: Start accepts. Automaton has 41503 states and 56581 transitions. Word has length 245 [2022-07-23 02:38:17,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:38:17,757 INFO L495 AbstractCegarLoop]: Abstraction has 41503 states and 56581 transitions. [2022-07-23 02:38:17,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-23 02:38:17,758 INFO L276 IsEmpty]: Start isEmpty. Operand 41503 states and 56581 transitions. [2022-07-23 02:38:17,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-07-23 02:38:17,791 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:38:17,791 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 10, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:38:17,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-23 02:38:17,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:38:17,992 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)] === [2022-07-23 02:38:17,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:38:17,993 INFO L85 PathProgramCache]: Analyzing trace with hash -659466435, now seen corresponding path program 1 times [2022-07-23 02:38:17,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:38:17,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [416186128] [2022-07-23 02:38:17,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:38:17,994 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:38:17,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:38:18,018 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) [2022-07-23 02:38:18,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-23 02:38:19,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:19,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 1337 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 02:38:19,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:38:20,293 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 823 trivial. 0 not checked. [2022-07-23 02:38:20,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 02:38:20,810 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 823 trivial. 0 not checked. [2022-07-23 02:38:20,811 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:38:20,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [416186128] [2022-07-23 02:38:20,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [416186128] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 02:38:20,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 02:38:20,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 02:38:20,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534259603] [2022-07-23 02:38:20,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:38:20,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:38:20,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:38:20,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:38:20,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:38:20,812 INFO L87 Difference]: Start difference. First operand 41503 states and 56581 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-23 02:38:22,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:38:22,799 INFO L93 Difference]: Finished difference Result 41509 states and 56586 transitions. [2022-07-23 02:38:22,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 02:38:22,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 250 [2022-07-23 02:38:22,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:38:22,993 INFO L225 Difference]: With dead ends: 41509 [2022-07-23 02:38:22,994 INFO L226 Difference]: Without dead ends: 41507 [2022-07-23 02:38:23,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 493 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 02:38:23,019 INFO L413 NwaCegarLoop]: 2725 mSDtfsCounter, 2658 mSDsluCounter, 5431 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2660 SdHoareTripleChecker+Valid, 8156 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 02:38:23,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2660 Valid, 8156 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 02:38:23,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41507 states. [2022-07-23 02:38:24,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41507 to 41507. [2022-07-23 02:38:24,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41507 states, 28914 states have (on average 1.264681469184478) internal successors, (36567), 29406 states have internal predecessors, (36567), 10000 states have call successors, (10000), 2614 states have call predecessors, (10000), 2590 states have return successors, (10017), 9797 states have call predecessors, (10017), 9996 states have call successors, (10017) [2022-07-23 02:38:25,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41507 states to 41507 states and 56584 transitions. [2022-07-23 02:38:25,148 INFO L78 Accepts]: Start accepts. Automaton has 41507 states and 56584 transitions. Word has length 250 [2022-07-23 02:38:25,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:38:25,148 INFO L495 AbstractCegarLoop]: Abstraction has 41507 states and 56584 transitions. [2022-07-23 02:38:25,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-23 02:38:25,149 INFO L276 IsEmpty]: Start isEmpty. Operand 41507 states and 56584 transitions. [2022-07-23 02:38:25,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2022-07-23 02:38:25,154 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:38:25,154 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 11, 11, 11, 11, 11, 11, 11, 10, 10, 6, 6, 6, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1] [2022-07-23 02:38:25,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-23 02:38:25,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:38:25,371 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)] === [2022-07-23 02:38:25,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:38:25,372 INFO L85 PathProgramCache]: Analyzing trace with hash -2071201209, now seen corresponding path program 1 times [2022-07-23 02:38:25,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:38:25,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1562072715] [2022-07-23 02:38:25,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:38:25,373 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:38:25,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:38:25,374 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) [2022-07-23 02:38:25,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-23 02:38:26,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:26,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 1428 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-23 02:38:26,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:38:27,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 237 proven. 3 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-07-23 02:38:27,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 02:38:28,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 51 proven. 18 refuted. 0 times theorem prover too weak. 951 trivial. 0 not checked. [2022-07-23 02:38:28,246 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:38:28,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1562072715] [2022-07-23 02:38:28,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1562072715] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 02:38:28,246 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 02:38:28,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 22 [2022-07-23 02:38:28,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091213002] [2022-07-23 02:38:28,249 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 02:38:28,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-23 02:38:28,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:38:28,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-23 02:38:28,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-07-23 02:38:28,251 INFO L87 Difference]: Start difference. First operand 41507 states and 56584 transitions. Second operand has 22 states, 21 states have (on average 5.476190476190476) internal successors, (115), 20 states have internal predecessors, (115), 6 states have call successors, (57), 3 states have call predecessors, (57), 8 states have return successors, (56), 7 states have call predecessors, (56), 6 states have call successors, (56) [2022-07-23 02:38:53,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:38:53,726 INFO L93 Difference]: Finished difference Result 109808 states and 149603 transitions. [2022-07-23 02:38:53,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-23 02:38:53,728 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 5.476190476190476) internal successors, (115), 20 states have internal predecessors, (115), 6 states have call successors, (57), 3 states have call predecessors, (57), 8 states have return successors, (56), 7 states have call predecessors, (56), 6 states have call successors, (56) Word has length 291 [2022-07-23 02:38:53,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:38:54,041 INFO L225 Difference]: With dead ends: 109808 [2022-07-23 02:38:54,041 INFO L226 Difference]: Without dead ends: 68234 [2022-07-23 02:38:54,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 595 GetRequests, 561 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=181, Invalid=1079, Unknown=0, NotChecked=0, Total=1260 [2022-07-23 02:38:54,189 INFO L413 NwaCegarLoop]: 5947 mSDtfsCounter, 8030 mSDsluCounter, 86117 mSDsCounter, 0 mSdLazyCounter, 7611 mSolverCounterSat, 1596 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8262 SdHoareTripleChecker+Valid, 92064 SdHoareTripleChecker+Invalid, 9207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1596 IncrementalHoareTripleChecker+Valid, 7611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2022-07-23 02:38:54,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8262 Valid, 92064 Invalid, 9207 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1596 Valid, 7611 Invalid, 0 Unknown, 0 Unchecked, 21.1s Time] [2022-07-23 02:38:54,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68234 states. [2022-07-23 02:38:57,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68234 to 54638. [2022-07-23 02:38:57,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54638 states, 38060 states have (on average 1.2641618497109826) internal successors, (48114), 38698 states have internal predecessors, (48114), 13142 states have call successors, (13142), 3462 states have call predecessors, (13142), 3433 states have return successors, (13166), 12889 states have call predecessors, (13166), 13138 states have call successors, (13166) [2022-07-23 02:38:57,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54638 states to 54638 states and 74422 transitions. [2022-07-23 02:38:57,520 INFO L78 Accepts]: Start accepts. Automaton has 54638 states and 74422 transitions. Word has length 291 [2022-07-23 02:38:57,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:38:57,520 INFO L495 AbstractCegarLoop]: Abstraction has 54638 states and 74422 transitions. [2022-07-23 02:38:57,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 5.476190476190476) internal successors, (115), 20 states have internal predecessors, (115), 6 states have call successors, (57), 3 states have call predecessors, (57), 8 states have return successors, (56), 7 states have call predecessors, (56), 6 states have call successors, (56) [2022-07-23 02:38:57,521 INFO L276 IsEmpty]: Start isEmpty. Operand 54638 states and 74422 transitions. [2022-07-23 02:38:57,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-07-23 02:38:57,524 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:38:57,531 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 11, 10, 10, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:38:57,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-07-23 02:38:57,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:38:57,747 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)] === [2022-07-23 02:38:57,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:38:57,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1514704387, now seen corresponding path program 1 times [2022-07-23 02:38:57,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:38:57,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [511383152] [2022-07-23 02:38:57,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:38:57,749 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:38:57,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:38:57,750 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) [2022-07-23 02:38:57,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-07-23 02:38:59,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:38:59,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 1344 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 02:38:59,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:38:59,831 INFO L134 CoverageAnalysis]: Checked inductivity of 879 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 859 trivial. 0 not checked. [2022-07-23 02:38:59,831 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 02:39:00,233 INFO L134 CoverageAnalysis]: Checked inductivity of 879 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 859 trivial. 0 not checked. [2022-07-23 02:39:00,233 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:39:00,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [511383152] [2022-07-23 02:39:00,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [511383152] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 02:39:00,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 02:39:00,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 02:39:00,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130124827] [2022-07-23 02:39:00,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:39:00,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:39:00,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:39:00,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:39:00,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:39:00,235 INFO L87 Difference]: Start difference. First operand 54638 states and 74422 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-23 02:39:02,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:39:02,501 INFO L93 Difference]: Finished difference Result 54644 states and 74427 transitions. [2022-07-23 02:39:02,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 02:39:02,502 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 255 [2022-07-23 02:39:02,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:39:02,751 INFO L225 Difference]: With dead ends: 54644 [2022-07-23 02:39:02,752 INFO L226 Difference]: Without dead ends: 54640 [2022-07-23 02:39:02,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 511 GetRequests, 503 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 02:39:02,781 INFO L413 NwaCegarLoop]: 2725 mSDtfsCounter, 2658 mSDsluCounter, 5431 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2659 SdHoareTripleChecker+Valid, 8156 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 02:39:02,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2659 Valid, 8156 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 02:39:02,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54640 states. [2022-07-23 02:39:05,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54640 to 54640. [2022-07-23 02:39:05,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54640 states, 38062 states have (on average 1.2641216961799169) internal successors, (48115), 38699 states have internal predecessors, (48115), 13142 states have call successors, (13142), 3463 states have call predecessors, (13142), 3433 states have return successors, (13166), 12889 states have call predecessors, (13166), 13138 states have call successors, (13166) [2022-07-23 02:39:05,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54640 states to 54640 states and 74423 transitions. [2022-07-23 02:39:05,577 INFO L78 Accepts]: Start accepts. Automaton has 54640 states and 74423 transitions. Word has length 255 [2022-07-23 02:39:05,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:39:05,578 INFO L495 AbstractCegarLoop]: Abstraction has 54640 states and 74423 transitions. [2022-07-23 02:39:05,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-23 02:39:05,578 INFO L276 IsEmpty]: Start isEmpty. Operand 54640 states and 74423 transitions. [2022-07-23 02:39:05,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-07-23 02:39:05,581 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:39:05,582 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 11, 11, 11, 11, 11, 11, 11, 11, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:39:05,610 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-07-23 02:39:05,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:39:05,786 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)] === [2022-07-23 02:39:05,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:39:05,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1305401603, now seen corresponding path program 1 times [2022-07-23 02:39:05,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:39:05,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [487465213] [2022-07-23 02:39:05,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:39:05,797 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:39:05,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:39:05,799 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) [2022-07-23 02:39:05,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-07-23 02:39:06,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:06,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 1351 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 02:39:06,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:39:07,796 INFO L134 CoverageAnalysis]: Checked inductivity of 921 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 899 trivial. 0 not checked. [2022-07-23 02:39:07,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 02:39:08,169 INFO L134 CoverageAnalysis]: Checked inductivity of 921 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 899 trivial. 0 not checked. [2022-07-23 02:39:08,169 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:39:08,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [487465213] [2022-07-23 02:39:08,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [487465213] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 02:39:08,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 02:39:08,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 02:39:08,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217162048] [2022-07-23 02:39:08,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:39:08,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:39:08,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:39:08,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:39:08,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:39:08,171 INFO L87 Difference]: Start difference. First operand 54640 states and 74423 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-23 02:39:10,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:39:10,384 INFO L93 Difference]: Finished difference Result 54640 states and 74423 transitions. [2022-07-23 02:39:10,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 02:39:10,385 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 260 [2022-07-23 02:39:10,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:39:10,594 INFO L225 Difference]: With dead ends: 54640 [2022-07-23 02:39:10,594 INFO L226 Difference]: Without dead ends: 53964 [2022-07-23 02:39:10,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 521 GetRequests, 513 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 02:39:10,629 INFO L413 NwaCegarLoop]: 2723 mSDtfsCounter, 2654 mSDsluCounter, 5430 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2654 SdHoareTripleChecker+Valid, 8153 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 02:39:10,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2654 Valid, 8153 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 02:39:10,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53964 states.