./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.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 54849713272284bcfc1d249b79bdfa502d33e8d1537f459c00022c26afd8a94c --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 14:25:37,624 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 14:25:37,626 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 14:25:37,671 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 14:25:37,672 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 14:25:37,673 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 14:25:37,676 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 14:25:37,679 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 14:25:37,681 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 14:25:37,685 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 14:25:37,686 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 14:25:37,691 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 14:25:37,691 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 14:25:37,693 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 14:25:37,694 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 14:25:37,697 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 14:25:37,697 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 14:25:37,699 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 14:25:37,700 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 14:25:37,710 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 14:25:37,711 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 14:25:37,712 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 14:25:37,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 14:25:37,714 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 14:25:37,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 14:25:37,722 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 14:25:37,723 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 14:25:37,723 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 14:25:37,724 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 14:25:37,724 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 14:25:37,725 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 14:25:37,725 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 14:25:37,727 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 14:25:37,728 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 14:25:37,729 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 14:25:37,729 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 14:25:37,730 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 14:25:37,730 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 14:25:37,730 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 14:25:37,731 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 14:25:37,731 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 14:25:37,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 14:25:37,739 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 14:25:37,772 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 14:25:37,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 14:25:37,773 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 14:25:37,773 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 14:25:37,774 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 14:25:37,774 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 14:25:37,775 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 14:25:37,775 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 14:25:37,775 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 14:25:37,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 14:25:37,777 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 14:25:37,777 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 14:25:37,777 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 14:25:37,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 14:25:37,777 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 14:25:37,777 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 14:25:37,787 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 14:25:37,787 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 14:25:37,788 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 14:25:37,788 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 14:25:37,788 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 14:25:37,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 14:25:37,789 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 14:25:37,789 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 14:25:37,789 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 14:25:37,789 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 14:25:37,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 14:25:37,790 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 14:25:37,790 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 14:25:37,790 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 14:25:37,790 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54849713272284bcfc1d249b79bdfa502d33e8d1537f459c00022c26afd8a94c [2022-07-21 14:25:38,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 14:25:38,114 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 14:25:38,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 14:25:38,118 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 14:25:38,119 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 14:25:38,120 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-07-21 14:25:38,184 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32dcd2f5d/431aa3d1cd204e14b454f1df86e98eaf/FLAGc58756fb8 [2022-07-21 14:25:39,161 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 14:25:39,162 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-07-21 14:25:39,242 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32dcd2f5d/431aa3d1cd204e14b454f1df86e98eaf/FLAGc58756fb8 [2022-07-21 14:25:39,704 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32dcd2f5d/431aa3d1cd204e14b454f1df86e98eaf [2022-07-21 14:25:39,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 14:25:39,715 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 14:25:39,717 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 14:25:39,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 14:25:39,722 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 14:25:39,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:25:39" (1/1) ... [2022-07-21 14:25:39,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75aca6f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:25:39, skipping insertion in model container [2022-07-21 14:25:39,724 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:25:39" (1/1) ... [2022-07-21 14:25:39,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 14:25:39,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 14:25:45,312 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_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508632,508645] [2022-07-21 14:25:45,315 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_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508801,508814] [2022-07-21 14:25:45,316 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_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508968,508981] [2022-07-21 14:25:45,322 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_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[509136,509149] [2022-07-21 14:25:45,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 14:25:45,406 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 14:25:45,546 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: data = data & 4294959087U [8080] 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) [2022-07-21 14:25:45,554 INFO L158 Benchmark]: Toolchain (without parser) took 5837.69ms. Allocated memory was 77.6MB in the beginning and 159.4MB in the end (delta: 81.8MB). Free memory was 48.1MB in the beginning and 69.1MB in the end (delta: -21.1MB). Peak memory consumption was 83.3MB. Max. memory is 16.1GB. [2022-07-21 14:25:45,555 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 54.5MB. Free memory is still 36.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 14:25:45,556 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5834.16ms. Allocated memory was 77.6MB in the beginning and 159.4MB in the end (delta: 81.8MB). Free memory was 47.8MB in the beginning and 69.1MB in the end (delta: -21.3MB). Peak memory consumption was 83.3MB. Max. memory is 16.1GB. [2022-07-21 14:25:45,558 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 54.5MB. Free memory is still 36.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5834.16ms. Allocated memory was 77.6MB in the beginning and 159.4MB in the end (delta: 81.8MB). Free memory was 47.8MB in the beginning and 69.1MB in the end (delta: -21.3MB). Peak memory consumption was 83.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: data = data & 4294959087U [8080] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: data = data & 4294959087U [8080]: 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_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.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 54849713272284bcfc1d249b79bdfa502d33e8d1537f459c00022c26afd8a94c --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 14:25:47,378 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 14:25:47,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 14:25:47,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 14:25:47,416 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 14:25:47,417 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 14:25:47,419 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 14:25:47,420 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 14:25:47,421 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 14:25:47,422 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 14:25:47,423 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 14:25:47,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 14:25:47,425 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 14:25:47,425 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 14:25:47,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 14:25:47,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 14:25:47,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 14:25:47,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 14:25:47,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 14:25:47,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 14:25:47,433 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 14:25:47,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 14:25:47,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 14:25:47,436 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 14:25:47,437 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 14:25:47,439 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 14:25:47,439 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 14:25:47,440 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 14:25:47,441 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 14:25:47,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 14:25:47,442 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 14:25:47,442 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 14:25:47,443 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 14:25:47,444 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 14:25:47,445 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 14:25:47,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 14:25:47,446 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 14:25:47,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 14:25:47,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 14:25:47,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 14:25:47,448 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 14:25:47,450 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 14:25:47,458 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 14:25:47,490 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 14:25:47,491 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 14:25:47,491 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 14:25:47,492 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 14:25:47,492 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 14:25:47,493 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 14:25:47,493 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 14:25:47,493 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 14:25:47,494 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 14:25:47,494 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 14:25:47,495 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 14:25:47,495 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 14:25:47,495 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 14:25:47,495 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 14:25:47,503 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 14:25:47,504 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 14:25:47,504 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 14:25:47,504 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 14:25:47,504 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 14:25:47,504 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 14:25:47,505 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 14:25:47,505 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 14:25:47,505 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 14:25:47,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 14:25:47,506 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 14:25:47,506 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 14:25:47,506 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 14:25:47,506 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 14:25:47,506 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 14:25:47,506 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 14:25:47,507 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 14:25:47,507 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 14:25:47,507 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 14:25:47,507 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54849713272284bcfc1d249b79bdfa502d33e8d1537f459c00022c26afd8a94c [2022-07-21 14:25:47,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 14:25:47,863 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 14:25:47,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 14:25:47,867 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 14:25:47,868 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 14:25:47,869 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-07-21 14:25:47,942 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5f52edd1/dce1ab1619494e7b965952e0c433ee7f/FLAGbc35e28e0 [2022-07-21 14:25:48,944 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 14:25:48,945 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-07-21 14:25:49,013 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5f52edd1/dce1ab1619494e7b965952e0c433ee7f/FLAGbc35e28e0 [2022-07-21 14:25:49,440 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5f52edd1/dce1ab1619494e7b965952e0c433ee7f [2022-07-21 14:25:49,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 14:25:49,444 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 14:25:49,446 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 14:25:49,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 14:25:49,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 14:25:49,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:25:49" (1/1) ... [2022-07-21 14:25:49,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60802eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:25:49, skipping insertion in model container [2022-07-21 14:25:49,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:25:49" (1/1) ... [2022-07-21 14:25:49,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 14:25:49,671 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 14:25:56,345 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_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508632,508645] [2022-07-21 14:25:56,347 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_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508801,508814] [2022-07-21 14:25:56,348 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_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508968,508981] [2022-07-21 14:25:56,348 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_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[509136,509149] [2022-07-21 14:25:56,391 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 14:25:56,433 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 14:25:56,564 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 14:25:57,010 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_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508632,508645] [2022-07-21 14:25:57,012 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_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508801,508814] [2022-07-21 14:25:57,012 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_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508968,508981] [2022-07-21 14:25:57,013 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_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[509136,509149] [2022-07-21 14:25:57,019 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 14:25:57,046 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 14:25:57,685 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_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508632,508645] [2022-07-21 14:25:57,686 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_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508801,508814] [2022-07-21 14:25:57,687 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_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508968,508981] [2022-07-21 14:25:57,687 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_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[509136,509149] [2022-07-21 14:25:57,698 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 14:25:57,987 INFO L208 MainTranslator]: Completed translation [2022-07-21 14:25:57,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:25:57 WrapperNode [2022-07-21 14:25:57,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 14:25:57,990 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 14:25:57,990 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 14:25:57,991 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 14:25:57,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:25:57" (1/1) ... [2022-07-21 14:25:58,166 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:25:57" (1/1) ... [2022-07-21 14:25:58,452 INFO L137 Inliner]: procedures = 693, calls = 4011, calls flagged for inlining = 356, calls inlined = 330, statements flattened = 9701 [2022-07-21 14:25:58,453 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 14:25:58,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 14:25:58,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 14:25:58,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 14:25:58,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:25:57" (1/1) ... [2022-07-21 14:25:58,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:25:57" (1/1) ... [2022-07-21 14:25:58,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:25:57" (1/1) ... [2022-07-21 14:25:58,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:25:57" (1/1) ... [2022-07-21 14:25:58,777 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:25:57" (1/1) ... [2022-07-21 14:25:58,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:25:57" (1/1) ... [2022-07-21 14:25:58,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:25:57" (1/1) ... [2022-07-21 14:25:58,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 14:25:58,941 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 14:25:58,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 14:25:58,941 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 14:25:58,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:25:57" (1/1) ... [2022-07-21 14:25:58,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 14:25:58,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 14:25:58,981 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) [2022-07-21 14:25:58,986 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 [2022-07-21 14:25:59,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_93 [2022-07-21 14:25:59,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_93 [2022-07-21 14:25:59,016 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-21 14:25:59,016 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-21 14:25:59,017 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-07-21 14:25:59,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-07-21 14:25:59,017 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_core [2022-07-21 14:25:59,017 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_core [2022-07-21 14:25:59,017 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-07-21 14:25:59,017 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-07-21 14:25:59,018 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_post_phy_linkchg [2022-07-21 14:25:59,018 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_post_phy_linkchg [2022-07-21 14:25:59,018 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-21 14:25:59,018 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-21 14:25:59,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 14:25:59,018 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 14:25:59,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_80 [2022-07-21 14:25:59,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_80 [2022-07-21 14:25:59,019 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-07-21 14:25:59,019 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-07-21 14:25:59,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 14:25:59,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 14:25:59,020 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_rx_ring [2022-07-21 14:25:59,020 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_rx_ring [2022-07-21 14:25:59,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 14:25:59,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 14:25:59,021 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-21 14:25:59,021 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-21 14:25:59,021 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-21 14:25:59,021 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-21 14:25:59,021 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-21 14:25:59,022 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-21 14:25:59,022 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_current_addr [2022-07-21 14:25:59,022 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_current_addr [2022-07-21 14:25:59,022 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 14:25:59,022 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 14:25:59,022 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-07-21 14:25:59,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-07-21 14:25:59,023 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_mac [2022-07-21 14:25:59,024 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_mac [2022-07-21 14:25:59,024 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_irq_disable [2022-07-21 14:25:59,024 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_irq_disable [2022-07-21 14:25:59,025 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_stop_phy_polling [2022-07-21 14:25:59,025 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_stop_phy_polling [2022-07-21 14:25:59,025 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-21 14:25:59,025 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-21 14:25:59,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-21 14:25:59,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-21 14:25:59,026 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-21 14:25:59,026 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-21 14:25:59,026 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-21 14:25:59,027 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-21 14:25:59,027 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-21 14:25:59,027 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-21 14:25:59,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-21 14:25:59,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-21 14:25:59,027 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-21 14:25:59,027 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-21 14:25:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-21 14:25:59,029 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-21 14:25:59,029 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-07-21 14:25:59,029 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-07-21 14:25:59,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 14:25:59,029 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-21 14:25:59,029 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-21 14:25:59,029 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_speed_and_duplex [2022-07-21 14:25:59,030 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_speed_and_duplex [2022-07-21 14:25:59,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-21 14:25:59,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 14:25:59,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-21 14:25:59,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-21 14:25:59,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_mdio_lock_of_atl1c_adapter [2022-07-21 14:25:59,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_mdio_lock_of_atl1c_adapter [2022-07-21 14:25:59,031 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-07-21 14:25:59,031 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-07-21 14:25:59,031 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_close [2022-07-21 14:25:59,032 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_close [2022-07-21 14:25:59,032 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-21 14:25:59,032 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-21 14:25:59,032 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_reg [2022-07-21 14:25:59,033 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_reg [2022-07-21 14:25:59,033 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_init [2022-07-21 14:25:59,033 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_init [2022-07-21 14:25:59,033 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_dbg [2022-07-21 14:25:59,033 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_dbg [2022-07-21 14:25:59,033 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_regs_len [2022-07-21 14:25:59,034 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_regs_len [2022-07-21 14:25:59,034 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-21 14:25:59,034 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-21 14:25:59,034 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-21 14:25:59,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-21 14:25:59,034 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_free_ring_resources [2022-07-21 14:25:59,034 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_free_ring_resources [2022-07-21 14:25:59,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-21 14:25:59,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-21 14:25:59,035 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-21 14:25:59,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-21 14:25:59,036 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-21 14:25:59,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-21 14:25:59,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 14:25:59,036 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 14:25:59,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-21 14:25:59,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-21 14:25:59,040 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-07-21 14:25:59,040 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-07-21 14:25:59,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-21 14:25:59,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-21 14:25:59,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-21 14:25:59,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-21 14:25:59,042 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-21 14:25:59,042 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-21 14:25:59,042 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_multi [2022-07-21 14:25:59,047 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_multi [2022-07-21 14:25:59,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-21 14:25:59,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-21 14:25:59,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 14:25:59,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 14:25:59,048 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-07-21 14:25:59,048 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-07-21 14:25:59,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-21 14:25:59,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-21 14:25:59,049 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-21 14:25:59,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-21 14:25:59,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 14:25:59,049 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_start_phy_polling [2022-07-21 14:25:59,049 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_start_phy_polling [2022-07-21 14:25:59,049 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-07-21 14:25:59,050 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-07-21 14:25:59,050 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-21 14:25:59,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-21 14:25:59,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-21 14:25:59,050 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 14:25:59,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 14:25:59,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-21 14:25:59,051 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-07-21 14:25:59,051 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-07-21 14:25:59,051 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-07-21 14:25:59,051 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-07-21 14:25:59,051 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-07-21 14:25:59,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-07-21 14:25:59,051 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_core [2022-07-21 14:25:59,051 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_core [2022-07-21 14:25:59,052 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_wait_until_idle [2022-07-21 14:25:59,052 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_wait_until_idle [2022-07-21 14:25:59,052 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-21 14:25:59,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-21 14:25:59,052 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-07-21 14:25:59,052 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-07-21 14:25:59,052 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-21 14:25:59,053 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-21 14:25:59,053 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_check_link_status [2022-07-21 14:25:59,053 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_check_link_status [2022-07-21 14:25:59,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-21 14:25:59,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-21 14:25:59,053 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_alloc_rx_buffer [2022-07-21 14:25:59,053 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_alloc_rx_buffer [2022-07-21 14:25:59,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mdio_lock_of_atl1c_adapter [2022-07-21 14:25:59,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mdio_lock_of_atl1c_adapter [2022-07-21 14:25:59,054 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_io_resume [2022-07-21 14:25:59,054 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_io_resume [2022-07-21 14:25:59,054 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_dbg [2022-07-21 14:25:59,054 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_dbg [2022-07-21 14:25:59,054 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_wait_mdio_idle [2022-07-21 14:25:59,054 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_wait_mdio_idle [2022-07-21 14:25:59,055 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-21 14:25:59,055 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-21 14:25:59,055 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-21 14:25:59,055 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-21 14:25:59,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-21 14:25:59,055 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_vlan_mode [2022-07-21 14:25:59,055 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_vlan_mode [2022-07-21 14:25:59,056 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_tx_buffer [2022-07-21 14:25:59,056 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_tx_buffer [2022-07-21 14:25:59,056 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_down [2022-07-21 14:25:59,056 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_down [2022-07-21 14:25:59,056 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_suspend [2022-07-21 14:25:59,058 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_suspend [2022-07-21 14:25:59,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 14:25:59,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 14:25:59,058 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-07-21 14:25:59,058 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-07-21 14:25:59,058 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-21 14:25:59,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-21 14:25:59,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-21 14:25:59,059 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-21 14:25:59,059 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-21 14:25:59,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-21 14:25:59,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 14:25:59,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 14:25:59,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-21 14:25:59,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 14:25:59,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 14:25:59,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 14:25:59,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 14:25:59,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 14:25:59,060 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-21 14:25:59,061 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-21 14:25:59,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2022-07-21 14:25:59,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2022-07-21 14:25:59,061 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_tx_timeout [2022-07-21 14:25:59,061 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_tx_timeout [2022-07-21 14:25:59,061 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-07-21 14:25:59,061 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-07-21 14:25:59,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-21 14:25:59,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-21 14:25:59,062 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_tpd [2022-07-21 14:25:59,062 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_tpd [2022-07-21 14:25:59,062 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_hw_set_mac_addr [2022-07-21 14:25:59,062 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_hw_set_mac_addr [2022-07-21 14:25:59,062 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-21 14:25:59,062 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-21 14:25:59,063 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-07-21 14:25:59,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-07-21 14:25:59,063 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-07-21 14:25:59,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-07-21 14:25:59,063 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_restart_autoneg [2022-07-21 14:25:59,063 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_restart_autoneg [2022-07-21 14:25:59,063 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_rxbufsize [2022-07-21 14:25:59,064 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_rxbufsize [2022-07-21 14:25:59,064 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-21 14:25:59,064 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-21 14:25:59,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 14:25:59,064 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 14:25:59,064 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_free_irq [2022-07-21 14:25:59,064 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_free_irq [2022-07-21 14:25:59,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-07-21 14:25:59,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-07-21 14:25:59,065 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_ext [2022-07-21 14:25:59,065 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_ext [2022-07-21 14:25:59,066 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-07-21 14:25:59,069 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-07-21 14:25:59,069 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-21 14:25:59,069 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-21 14:25:59,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 14:25:59,069 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-07-21 14:25:59,070 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-07-21 14:25:59,070 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_nway_reset [2022-07-21 14:25:59,070 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_nway_reset [2022-07-21 14:25:59,070 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_dma_ring [2022-07-21 14:25:59,071 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_dma_ring [2022-07-21 14:25:59,071 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-21 14:25:59,071 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-21 14:25:59,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 14:25:59,072 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_irq_enable [2022-07-21 14:25:59,072 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_irq_enable [2022-07-21 14:25:59,072 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-07-21 14:25:59,072 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-07-21 14:25:59,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-21 14:25:59,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-21 14:25:59,072 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_eeprom_len [2022-07-21 14:25:59,073 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_eeprom_len [2022-07-21 14:25:59,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-21 14:25:59,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 14:25:59,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 14:25:59,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-07-21 14:25:59,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-07-21 14:25:59,073 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_check_eeprom_exist [2022-07-21 14:25:59,073 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_check_eeprom_exist [2022-07-21 14:25:59,074 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-07-21 14:25:59,074 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-07-21 14:25:59,074 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-21 14:25:59,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-21 14:25:59,074 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_netpoll [2022-07-21 14:25:59,074 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_netpoll [2022-07-21 14:25:59,074 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-21 14:25:59,075 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-21 14:25:59,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-21 14:25:59,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-21 14:25:59,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-21 14:25:59,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-21 14:25:59,075 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_configure [2022-07-21 14:25:59,075 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_configure [2022-07-21 14:25:59,075 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-07-21 14:25:59,076 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-07-21 14:25:59,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_85 [2022-07-21 14:25:59,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_85 [2022-07-21 14:25:59,076 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_tx_ring [2022-07-21 14:25:59,076 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_tx_ring [2022-07-21 14:25:59,076 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_reset [2022-07-21 14:25:59,076 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_reset [2022-07-21 14:25:59,076 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_open [2022-07-21 14:25:59,077 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_open [2022-07-21 14:25:59,077 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-21 14:25:59,077 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-21 14:25:59,077 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-21 14:25:59,077 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-21 14:25:59,077 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-07-21 14:25:59,077 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-07-21 14:25:59,078 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-07-21 14:25:59,078 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-07-21 14:25:59,078 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-21 14:25:59,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-21 14:25:59,078 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_intr [2022-07-21 14:25:59,078 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_intr [2022-07-21 14:25:59,078 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-21 14:25:59,078 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-21 14:25:59,079 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_power_saving [2022-07-21 14:25:59,079 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_power_saving [2022-07-21 14:25:59,079 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_setup_adv [2022-07-21 14:25:59,079 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_setup_adv [2022-07-21 14:25:59,079 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-07-21 14:25:59,079 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-07-21 14:25:59,079 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 14:25:59,080 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 14:25:59,080 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_buffer [2022-07-21 14:25:59,080 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_buffer [2022-07-21 14:25:59,080 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_remove [2022-07-21 14:25:59,080 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_remove [2022-07-21 14:25:59,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-21 14:25:59,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-21 14:25:59,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-21 14:25:59,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-21 14:25:59,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 14:25:59,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 14:25:59,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_86 [2022-07-21 14:25:59,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_86 [2022-07-21 14:25:59,081 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-21 14:25:59,081 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-21 14:25:59,082 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-21 14:25:59,082 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-21 14:25:59,082 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_up [2022-07-21 14:25:59,082 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_up [2022-07-21 14:25:59,082 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-21 14:25:59,082 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-21 14:25:59,082 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_disable_l0s_l1 [2022-07-21 14:25:59,082 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_disable_l0s_l1 [2022-07-21 14:25:59,083 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_resume [2022-07-21 14:25:59,083 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_resume [2022-07-21 14:25:59,083 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-07-21 14:25:59,083 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-07-21 14:25:59,083 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_pcie [2022-07-21 14:25:59,083 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_pcie [2022-07-21 14:25:59,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-21 14:25:59,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-21 14:25:59,084 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-21 14:25:59,084 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-21 14:25:59,084 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_shutdown [2022-07-21 14:25:59,084 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_shutdown [2022-07-21 14:25:59,084 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_aspm [2022-07-21 14:25:59,084 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_aspm [2022-07-21 14:25:59,085 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-07-21 14:25:59,085 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-07-21 14:25:59,085 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-07-21 14:25:59,085 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-07-21 14:25:59,085 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-21 14:25:59,085 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-21 14:25:59,085 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_reg [2022-07-21 14:25:59,085 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_reg [2022-07-21 14:25:59,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-21 14:25:59,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-21 14:26:00,454 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 14:26:00,461 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 14:26:01,114 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 14:27:03,484 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 14:27:03,511 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 14:27:03,512 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-21 14:27:03,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 02:27:03 BoogieIcfgContainer [2022-07-21 14:27:03,517 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 14:27:03,519 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 14:27:03,519 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 14:27:03,522 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 14:27:03,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 02:25:49" (1/3) ... [2022-07-21 14:27:03,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a085d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 02:27:03, skipping insertion in model container [2022-07-21 14:27:03,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:25:57" (2/3) ... [2022-07-21 14:27:03,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a085d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 02:27:03, skipping insertion in model container [2022-07-21 14:27:03,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 02:27:03" (3/3) ... [2022-07-21 14:27:03,524 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-07-21 14:27:03,537 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 14:27:03,538 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-07-21 14:27:03,661 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 14:27:03,673 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@93724b8, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@10492f0d [2022-07-21 14:27:03,673 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-07-21 14:27:03,692 INFO L276 IsEmpty]: Start isEmpty. Operand has 3738 states, 2494 states have (on average 1.2489975942261426) internal successors, (3115), 2549 states have internal predecessors, (3115), 1081 states have call successors, (1081), 159 states have call predecessors, (1081), 158 states have return successors, (1074), 1065 states have call predecessors, (1074), 1074 states have call successors, (1074) [2022-07-21 14:27:03,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-21 14:27:03,703 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:27:03,703 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-07-21 14:27:03,704 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 14:27:03,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:27:03,709 INFO L85 PathProgramCache]: Analyzing trace with hash 641900107, now seen corresponding path program 1 times [2022-07-21 14:27:03,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:27:03,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1890604737] [2022-07-21 14:27:03,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:27:03,728 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:27:03,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:27:03,735 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) [2022-07-21 14:27:03,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 14:27:05,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:05,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 1316 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 14:27:05,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 14:27:06,747 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-21 14:27:06,747 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 14:27:06,748 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 14:27:06,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1890604737] [2022-07-21 14:27:06,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1890604737] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 14:27:06,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 14:27:06,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 14:27:06,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583965563] [2022-07-21 14:27:06,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:27:06,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 14:27:06,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 14:27:06,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 14:27:06,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 14:27:06,809 INFO L87 Difference]: Start difference. First operand has 3738 states, 2494 states have (on average 1.2489975942261426) internal successors, (3115), 2549 states have internal predecessors, (3115), 1081 states have call successors, (1081), 159 states have call predecessors, (1081), 158 states have return successors, (1074), 1065 states have call predecessors, (1074), 1074 states have call successors, (1074) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-21 14:27:07,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:27:07,615 INFO L93 Difference]: Finished difference Result 7449 states and 10625 transitions. [2022-07-21 14:27:07,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 14:27:07,618 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 48 [2022-07-21 14:27:07,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:27:07,672 INFO L225 Difference]: With dead ends: 7449 [2022-07-21 14:27:07,673 INFO L226 Difference]: Without dead ends: 3723 [2022-07-21 14:27:07,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 14:27:07,819 INFO L413 NwaCegarLoop]: 5246 mSDtfsCounter, 5220 mSDsluCounter, 10476 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5221 SdHoareTripleChecker+Valid, 15722 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 14:27:07,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5221 Valid, 15722 Invalid, 24 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 14:27:07,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3723 states. [2022-07-21 14:27:08,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3723 to 3723. [2022-07-21 14:27:08,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3723 states, 2487 states have (on average 1.241254523522316) internal successors, (3087), 2538 states have internal predecessors, (3087), 1074 states have call successors, (1074), 159 states have call predecessors, (1074), 158 states have return successors, (1071), 1062 states have call predecessors, (1071), 1071 states have call successors, (1071) [2022-07-21 14:27:08,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3723 states to 3723 states and 5232 transitions. [2022-07-21 14:27:08,141 INFO L78 Accepts]: Start accepts. Automaton has 3723 states and 5232 transitions. Word has length 48 [2022-07-21 14:27:08,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:27:08,142 INFO L495 AbstractCegarLoop]: Abstraction has 3723 states and 5232 transitions. [2022-07-21 14:27:08,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-21 14:27:08,143 INFO L276 IsEmpty]: Start isEmpty. Operand 3723 states and 5232 transitions. [2022-07-21 14:27:08,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-21 14:27:08,145 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:27:08,146 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-07-21 14:27:08,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-21 14:27:08,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 14:27:08,368 INFO L420 AbstractCegarLoop]: === Iteration 2 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 14:27:08,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:27:08,368 INFO L85 PathProgramCache]: Analyzing trace with hash 802517195, now seen corresponding path program 1 times [2022-07-21 14:27:08,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:27:08,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [715693536] [2022-07-21 14:27:08,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:27:08,371 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:27:08,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:27:08,375 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) [2022-07-21 14:27:08,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 14:27:10,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:10,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 1323 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 14:27:10,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 14:27:11,294 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-21 14:27:11,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 14:27:11,745 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-21 14:27:11,746 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 14:27:11,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [715693536] [2022-07-21 14:27:11,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [715693536] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 14:27:11,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 14:27:11,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 14:27:11,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010596631] [2022-07-21 14:27:11,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:27:11,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 14:27:11,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 14:27:11,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 14:27:11,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 14:27:11,749 INFO L87 Difference]: Start difference. First operand 3723 states and 5232 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-21 14:27:12,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:27:12,344 INFO L93 Difference]: Finished difference Result 3729 states and 5237 transitions. [2022-07-21 14:27:12,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 14:27:12,345 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 53 [2022-07-21 14:27:12,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:27:12,377 INFO L225 Difference]: With dead ends: 3729 [2022-07-21 14:27:12,377 INFO L226 Difference]: Without dead ends: 3727 [2022-07-21 14:27:12,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:27:12,383 INFO L413 NwaCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5211 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 14:27:12,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5211 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 14:27:12,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3727 states. [2022-07-21 14:27:12,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3727 to 3727. [2022-07-21 14:27:12,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3727 states, 2490 states have (on average 1.2409638554216869) internal successors, (3090), 2541 states have internal predecessors, (3090), 1074 states have call successors, (1074), 160 states have call predecessors, (1074), 159 states have return successors, (1071), 1062 states have call predecessors, (1071), 1071 states have call successors, (1071) [2022-07-21 14:27:12,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3727 states to 3727 states and 5235 transitions. [2022-07-21 14:27:12,640 INFO L78 Accepts]: Start accepts. Automaton has 3727 states and 5235 transitions. Word has length 53 [2022-07-21 14:27:12,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:27:12,640 INFO L495 AbstractCegarLoop]: Abstraction has 3727 states and 5235 transitions. [2022-07-21 14:27:12,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-21 14:27:12,641 INFO L276 IsEmpty]: Start isEmpty. Operand 3727 states and 5235 transitions. [2022-07-21 14:27:12,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-21 14:27:12,648 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:27:12,649 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-21 14:27:12,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 14:27:12,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 14:27:12,864 INFO L420 AbstractCegarLoop]: === Iteration 3 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 14:27:12,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:27:12,865 INFO L85 PathProgramCache]: Analyzing trace with hash -2051062261, now seen corresponding path program 1 times [2022-07-21 14:27:12,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:27:12,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [119087773] [2022-07-21 14:27:12,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:27:12,868 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:27:12,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:27:12,876 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) [2022-07-21 14:27:12,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 14:27:14,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:14,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 1330 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 14:27:14,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 14:27:15,492 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-21 14:27:15,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 14:27:15,993 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-21 14:27:15,993 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 14:27:15,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [119087773] [2022-07-21 14:27:15,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [119087773] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 14:27:15,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 14:27:15,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 14:27:15,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054961049] [2022-07-21 14:27:15,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:27:15,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 14:27:15,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 14:27:15,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 14:27:15,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 14:27:15,995 INFO L87 Difference]: Start difference. First operand 3727 states and 5235 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 14:27:16,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:27:16,556 INFO L93 Difference]: Finished difference Result 3733 states and 5240 transitions. [2022-07-21 14:27:16,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 14:27:16,557 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2022-07-21 14:27:16,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:27:16,593 INFO L225 Difference]: With dead ends: 3733 [2022-07-21 14:27:16,593 INFO L226 Difference]: Without dead ends: 3731 [2022-07-21 14:27:16,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:27:16,601 INFO L413 NwaCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5210 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 14:27:16,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5210 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 14:27:16,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3731 states. [2022-07-21 14:27:16,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3731 to 3731. [2022-07-21 14:27:16,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3731 states, 2493 states have (on average 1.2406738868832732) internal successors, (3093), 2544 states have internal predecessors, (3093), 1074 states have call successors, (1074), 161 states have call predecessors, (1074), 160 states have return successors, (1071), 1062 states have call predecessors, (1071), 1071 states have call successors, (1071) [2022-07-21 14:27:16,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3731 states to 3731 states and 5238 transitions. [2022-07-21 14:27:16,820 INFO L78 Accepts]: Start accepts. Automaton has 3731 states and 5238 transitions. Word has length 58 [2022-07-21 14:27:16,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:27:16,821 INFO L495 AbstractCegarLoop]: Abstraction has 3731 states and 5238 transitions. [2022-07-21 14:27:16,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-21 14:27:16,822 INFO L276 IsEmpty]: Start isEmpty. Operand 3731 states and 5238 transitions. [2022-07-21 14:27:16,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-21 14:27:16,825 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:27:16,826 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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] [2022-07-21 14:27:16,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-21 14:27:17,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 14:27:17,040 INFO L420 AbstractCegarLoop]: === Iteration 4 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 14:27:17,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:27:17,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1594216587, now seen corresponding path program 1 times [2022-07-21 14:27:17,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:27:17,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1910513437] [2022-07-21 14:27:17,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:27:17,043 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:27:17,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:27:17,046 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) [2022-07-21 14:27:17,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-21 14:27:18,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:18,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 1337 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 14:27:18,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 14:27:19,692 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-21 14:27:19,693 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 14:27:20,124 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-21 14:27:20,124 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 14:27:20,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1910513437] [2022-07-21 14:27:20,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1910513437] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 14:27:20,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 14:27:20,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 14:27:20,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778363785] [2022-07-21 14:27:20,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:27:20,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 14:27:20,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 14:27:20,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 14:27:20,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 14:27:20,126 INFO L87 Difference]: Start difference. First operand 3731 states and 5238 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-21 14:27:20,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:27:20,644 INFO L93 Difference]: Finished difference Result 3737 states and 5243 transitions. [2022-07-21 14:27:20,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 14:27:20,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 63 [2022-07-21 14:27:20,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:27:20,676 INFO L225 Difference]: With dead ends: 3737 [2022-07-21 14:27:20,677 INFO L226 Difference]: Without dead ends: 3735 [2022-07-21 14:27:20,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:27:20,685 INFO L413 NwaCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5209 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 14:27:20,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5209 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 14:27:20,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3735 states. [2022-07-21 14:27:20,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3735 to 3735. [2022-07-21 14:27:20,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3735 states, 2496 states have (on average 1.2403846153846154) internal successors, (3096), 2547 states have internal predecessors, (3096), 1074 states have call successors, (1074), 162 states have call predecessors, (1074), 161 states have return successors, (1071), 1062 states have call predecessors, (1071), 1071 states have call successors, (1071) [2022-07-21 14:27:20,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3735 states to 3735 states and 5241 transitions. [2022-07-21 14:27:20,985 INFO L78 Accepts]: Start accepts. Automaton has 3735 states and 5241 transitions. Word has length 63 [2022-07-21 14:27:20,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:27:20,986 INFO L495 AbstractCegarLoop]: Abstraction has 3735 states and 5241 transitions. [2022-07-21 14:27:20,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-21 14:27:20,987 INFO L276 IsEmpty]: Start isEmpty. Operand 3735 states and 5241 transitions. [2022-07-21 14:27:20,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-21 14:27:20,989 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:27:20,990 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 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] [2022-07-21 14:27:21,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-21 14:27:21,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 14:27:21,212 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 14:27:21,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:27:21,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1194398261, now seen corresponding path program 1 times [2022-07-21 14:27:21,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:27:21,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1011597337] [2022-07-21 14:27:21,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:27:21,214 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:27:21,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:27:21,217 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) [2022-07-21 14:27:21,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-21 14:27:23,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:23,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 1344 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 14:27:23,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 14:27:23,993 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-07-21 14:27:23,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 14:27:24,484 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-07-21 14:27:24,485 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 14:27:24,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1011597337] [2022-07-21 14:27:24,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1011597337] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 14:27:24,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 14:27:24,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 14:27:24,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441942051] [2022-07-21 14:27:24,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:27:24,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 14:27:24,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 14:27:24,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 14:27:24,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 14:27:24,486 INFO L87 Difference]: Start difference. First operand 3735 states and 5241 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 14:27:24,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:27:24,998 INFO L93 Difference]: Finished difference Result 3741 states and 5246 transitions. [2022-07-21 14:27:24,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 14:27:24,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 68 [2022-07-21 14:27:25,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:27:25,026 INFO L225 Difference]: With dead ends: 3741 [2022-07-21 14:27:25,026 INFO L226 Difference]: Without dead ends: 3739 [2022-07-21 14:27:25,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:27:25,031 INFO L413 NwaCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5208 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 14:27:25,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5208 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 14:27:25,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3739 states. [2022-07-21 14:27:25,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3739 to 3739. [2022-07-21 14:27:25,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3739 states, 2499 states have (on average 1.240096038415366) internal successors, (3099), 2550 states have internal predecessors, (3099), 1074 states have call successors, (1074), 163 states have call predecessors, (1074), 162 states have return successors, (1071), 1062 states have call predecessors, (1071), 1071 states have call successors, (1071) [2022-07-21 14:27:25,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3739 states to 3739 states and 5244 transitions. [2022-07-21 14:27:25,241 INFO L78 Accepts]: Start accepts. Automaton has 3739 states and 5244 transitions. Word has length 68 [2022-07-21 14:27:25,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:27:25,241 INFO L495 AbstractCegarLoop]: Abstraction has 3739 states and 5244 transitions. [2022-07-21 14:27:25,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 14:27:25,242 INFO L276 IsEmpty]: Start isEmpty. Operand 3739 states and 5244 transitions. [2022-07-21 14:27:25,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-21 14:27:25,243 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:27:25,243 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 14:27:25,299 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-21 14:27:25,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 14:27:25,463 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 14:27:25,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:27:25,464 INFO L85 PathProgramCache]: Analyzing trace with hash 541092142, now seen corresponding path program 1 times [2022-07-21 14:27:25,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:27:25,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [225577152] [2022-07-21 14:27:25,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:27:25,466 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:27:25,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:27:25,468 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) [2022-07-21 14:27:25,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-21 14:27:27,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:27,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 1391 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-21 14:27:27,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 14:27:29,181 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-07-21 14:27:29,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 14:27:30,918 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-21 14:27:30,918 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 14:27:30,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [225577152] [2022-07-21 14:27:30,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [225577152] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 14:27:30,918 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 14:27:30,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 18 [2022-07-21 14:27:30,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291143312] [2022-07-21 14:27:30,918 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 14:27:30,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-21 14:27:30,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 14:27:30,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-21 14:27:30,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-07-21 14:27:30,920 INFO L87 Difference]: Start difference. First operand 3739 states and 5244 transitions. Second operand has 18 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 16 states have internal predecessors, (50), 6 states have call successors, (21), 2 states have call predecessors, (21), 5 states have return successors, (20), 7 states have call predecessors, (20), 6 states have call successors, (20) [2022-07-21 14:27:38,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:27:38,630 INFO L93 Difference]: Finished difference Result 6085 states and 8472 transitions. [2022-07-21 14:27:38,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-21 14:27:38,631 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 16 states have internal predecessors, (50), 6 states have call successors, (21), 2 states have call predecessors, (21), 5 states have return successors, (20), 7 states have call predecessors, (20), 6 states have call successors, (20) Word has length 86 [2022-07-21 14:27:38,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:27:38,660 INFO L225 Difference]: With dead ends: 6085 [2022-07-21 14:27:38,661 INFO L226 Difference]: Without dead ends: 3753 [2022-07-21 14:27:38,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=119, Invalid=583, Unknown=0, NotChecked=0, Total=702 [2022-07-21 14:27:38,677 INFO L413 NwaCegarLoop]: 5189 mSDtfsCounter, 42 mSDsluCounter, 77684 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 82873 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-07-21 14:27:38,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 82873 Invalid, 858 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [39 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-07-21 14:27:38,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3753 states. [2022-07-21 14:27:38,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3753 to 3749. [2022-07-21 14:27:38,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3749 states, 2507 states have (on average 1.2393298763462306) internal successors, (3107), 2558 states have internal predecessors, (3107), 1076 states have call successors, (1076), 163 states have call predecessors, (1076), 162 states have return successors, (1073), 1064 states have call predecessors, (1073), 1073 states have call successors, (1073) [2022-07-21 14:27:38,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3749 states to 3749 states and 5256 transitions. [2022-07-21 14:27:38,900 INFO L78 Accepts]: Start accepts. Automaton has 3749 states and 5256 transitions. Word has length 86 [2022-07-21 14:27:38,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:27:38,900 INFO L495 AbstractCegarLoop]: Abstraction has 3749 states and 5256 transitions. [2022-07-21 14:27:38,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 16 states have internal predecessors, (50), 6 states have call successors, (21), 2 states have call predecessors, (21), 5 states have return successors, (20), 7 states have call predecessors, (20), 6 states have call successors, (20) [2022-07-21 14:27:38,901 INFO L276 IsEmpty]: Start isEmpty. Operand 3749 states and 5256 transitions. [2022-07-21 14:27:38,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-21 14:27:38,901 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:27:38,901 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 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] [2022-07-21 14:27:38,962 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-21 14:27:39,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 14:27:39,116 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 14:27:39,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:27:39,116 INFO L85 PathProgramCache]: Analyzing trace with hash -24956853, now seen corresponding path program 1 times [2022-07-21 14:27:39,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:27:39,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1105339844] [2022-07-21 14:27:39,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:27:39,118 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:27:39,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:27:39,120 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) [2022-07-21 14:27:39,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-21 14:27:41,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:41,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 1351 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 14:27:41,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 14:27:42,195 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-21 14:27:42,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 14:27:42,699 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-21 14:27:42,699 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 14:27:42,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1105339844] [2022-07-21 14:27:42,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1105339844] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 14:27:42,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 14:27:42,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 14:27:42,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064743967] [2022-07-21 14:27:42,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:27:42,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 14:27:42,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 14:27:42,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 14:27:42,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 14:27:42,701 INFO L87 Difference]: Start difference. First operand 3749 states and 5256 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 14:27:43,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:27:43,210 INFO L93 Difference]: Finished difference Result 3755 states and 5261 transitions. [2022-07-21 14:27:43,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 14:27:43,211 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 73 [2022-07-21 14:27:43,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:27:43,249 INFO L225 Difference]: With dead ends: 3755 [2022-07-21 14:27:43,249 INFO L226 Difference]: Without dead ends: 3753 [2022-07-21 14:27:43,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:27:43,254 INFO L413 NwaCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5207 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 14:27:43,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5207 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 14:27:43,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3753 states. [2022-07-21 14:27:43,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3753 to 3753. [2022-07-21 14:27:43,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3753 states, 2510 states have (on average 1.2390438247011952) internal successors, (3110), 2561 states have internal predecessors, (3110), 1076 states have call successors, (1076), 164 states have call predecessors, (1076), 163 states have return successors, (1073), 1064 states have call predecessors, (1073), 1073 states have call successors, (1073) [2022-07-21 14:27:43,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3753 states to 3753 states and 5259 transitions. [2022-07-21 14:27:43,482 INFO L78 Accepts]: Start accepts. Automaton has 3753 states and 5259 transitions. Word has length 73 [2022-07-21 14:27:43,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:27:43,484 INFO L495 AbstractCegarLoop]: Abstraction has 3753 states and 5259 transitions. [2022-07-21 14:27:43,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 14:27:43,485 INFO L276 IsEmpty]: Start isEmpty. Operand 3753 states and 5259 transitions. [2022-07-21 14:27:43,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-21 14:27:43,491 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:27:43,491 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 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] [2022-07-21 14:27:43,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-21 14:27:43,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 14:27:43,708 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 14:27:43,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:27:43,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1548642933, now seen corresponding path program 1 times [2022-07-21 14:27:43,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:27:43,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1084727486] [2022-07-21 14:27:43,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:27:43,710 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:27:43,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:27:43,711 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) [2022-07-21 14:27:43,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-21 14:27:45,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:45,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 1358 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 14:27:45,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 14:27:46,496 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-21 14:27:46,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 14:27:47,028 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-21 14:27:47,028 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 14:27:47,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1084727486] [2022-07-21 14:27:47,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1084727486] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 14:27:47,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 14:27:47,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 14:27:47,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038660546] [2022-07-21 14:27:47,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:27:47,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 14:27:47,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 14:27:47,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 14:27:47,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 14:27:47,030 INFO L87 Difference]: Start difference. First operand 3753 states and 5259 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-21 14:27:47,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:27:47,583 INFO L93 Difference]: Finished difference Result 3759 states and 5264 transitions. [2022-07-21 14:27:47,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 14:27:47,584 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 78 [2022-07-21 14:27:47,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:27:47,609 INFO L225 Difference]: With dead ends: 3759 [2022-07-21 14:27:47,610 INFO L226 Difference]: Without dead ends: 3757 [2022-07-21 14:27:47,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:27:47,615 INFO L413 NwaCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5206 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 14:27:47,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5206 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 14:27:47,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3757 states. [2022-07-21 14:27:47,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3757 to 3757. [2022-07-21 14:27:47,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3757 states, 2513 states have (on average 1.238758456028651) internal successors, (3113), 2564 states have internal predecessors, (3113), 1076 states have call successors, (1076), 165 states have call predecessors, (1076), 164 states have return successors, (1073), 1064 states have call predecessors, (1073), 1073 states have call successors, (1073) [2022-07-21 14:27:47,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3757 states to 3757 states and 5262 transitions. [2022-07-21 14:27:47,844 INFO L78 Accepts]: Start accepts. Automaton has 3757 states and 5262 transitions. Word has length 78 [2022-07-21 14:27:47,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:27:47,845 INFO L495 AbstractCegarLoop]: Abstraction has 3757 states and 5262 transitions. [2022-07-21 14:27:47,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-21 14:27:47,845 INFO L276 IsEmpty]: Start isEmpty. Operand 3757 states and 5262 transitions. [2022-07-21 14:27:47,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-21 14:27:47,848 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:27:47,848 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 3, 3, 3, 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] [2022-07-21 14:27:47,907 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-21 14:27:48,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 14:27:48,063 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 14:27:48,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:27:48,064 INFO L85 PathProgramCache]: Analyzing trace with hash -770863093, now seen corresponding path program 1 times [2022-07-21 14:27:48,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:27:48,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [901176816] [2022-07-21 14:27:48,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:27:48,066 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:27:48,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:27:48,068 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) [2022-07-21 14:27:48,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-21 14:27:49,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:49,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 1365 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 14:27:49,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 14:27:50,980 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-21 14:27:50,980 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 14:27:51,525 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-21 14:27:51,525 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 14:27:51,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [901176816] [2022-07-21 14:27:51,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [901176816] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 14:27:51,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 14:27:51,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 14:27:51,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560324734] [2022-07-21 14:27:51,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:27:51,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 14:27:51,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 14:27:51,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 14:27:51,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 14:27:51,527 INFO L87 Difference]: Start difference. First operand 3757 states and 5262 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 14:27:52,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:27:52,023 INFO L93 Difference]: Finished difference Result 3763 states and 5267 transitions. [2022-07-21 14:27:52,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 14:27:52,024 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 83 [2022-07-21 14:27:52,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:27:52,041 INFO L225 Difference]: With dead ends: 3763 [2022-07-21 14:27:52,041 INFO L226 Difference]: Without dead ends: 3761 [2022-07-21 14:27:52,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:27:52,045 INFO L413 NwaCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5205 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 14:27:52,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5205 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 14:27:52,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3761 states. [2022-07-21 14:27:52,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3761 to 3761. [2022-07-21 14:27:52,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3761 states, 2516 states have (on average 1.2384737678855327) internal successors, (3116), 2567 states have internal predecessors, (3116), 1076 states have call successors, (1076), 166 states have call predecessors, (1076), 165 states have return successors, (1073), 1064 states have call predecessors, (1073), 1073 states have call successors, (1073) [2022-07-21 14:27:52,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3761 states to 3761 states and 5265 transitions. [2022-07-21 14:27:52,262 INFO L78 Accepts]: Start accepts. Automaton has 3761 states and 5265 transitions. Word has length 83 [2022-07-21 14:27:52,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:27:52,262 INFO L495 AbstractCegarLoop]: Abstraction has 3761 states and 5265 transitions. [2022-07-21 14:27:52,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 14:27:52,263 INFO L276 IsEmpty]: Start isEmpty. Operand 3761 states and 5265 transitions. [2022-07-21 14:27:52,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-07-21 14:27:52,264 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:27:52,264 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 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] [2022-07-21 14:27:52,318 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-07-21 14:27:52,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 14:27:52,480 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 14:27:52,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:27:52,480 INFO L85 PathProgramCache]: Analyzing trace with hash -626574005, now seen corresponding path program 1 times [2022-07-21 14:27:52,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:27:52,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1911037731] [2022-07-21 14:27:52,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:27:52,482 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:27:52,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:27:52,483 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) [2022-07-21 14:27:52,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-21 14:27:54,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:54,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 1372 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 14:27:54,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 14:27:55,256 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-07-21 14:27:55,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 14:27:55,737 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-07-21 14:27:55,737 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 14:27:55,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1911037731] [2022-07-21 14:27:55,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1911037731] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 14:27:55,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 14:27:55,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 14:27:55,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501047250] [2022-07-21 14:27:55,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:27:55,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 14:27:55,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 14:27:55,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 14:27:55,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 14:27:55,739 INFO L87 Difference]: Start difference. First operand 3761 states and 5265 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-21 14:27:56,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:27:56,261 INFO L93 Difference]: Finished difference Result 3938 states and 5493 transitions. [2022-07-21 14:27:56,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 14:27:56,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 88 [2022-07-21 14:27:56,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:27:56,273 INFO L225 Difference]: With dead ends: 3938 [2022-07-21 14:27:56,273 INFO L226 Difference]: Without dead ends: 3936 [2022-07-21 14:27:56,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:27:56,275 INFO L413 NwaCegarLoop]: 5364 mSDtfsCounter, 5106 mSDsluCounter, 11017 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5113 SdHoareTripleChecker+Valid, 16381 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 14:27:56,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5113 Valid, 16381 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 14:27:56,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3936 states. [2022-07-21 14:27:56,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3936 to 3934. [2022-07-21 14:27:56,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3934 states, 2640 states have (on average 1.2412878787878787) internal successors, (3277), 2692 states have internal predecessors, (3277), 1108 states have call successors, (1108), 183 states have call predecessors, (1108), 182 states have return successors, (1105), 1096 states have call predecessors, (1105), 1105 states have call successors, (1105) [2022-07-21 14:27:56,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3934 states to 3934 states and 5490 transitions. [2022-07-21 14:27:56,457 INFO L78 Accepts]: Start accepts. Automaton has 3934 states and 5490 transitions. Word has length 88 [2022-07-21 14:27:56,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:27:56,458 INFO L495 AbstractCegarLoop]: Abstraction has 3934 states and 5490 transitions. [2022-07-21 14:27:56,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-21 14:27:56,458 INFO L276 IsEmpty]: Start isEmpty. Operand 3934 states and 5490 transitions. [2022-07-21 14:27:56,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-21 14:27:56,460 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:27:56,461 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 3, 3, 3, 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] [2022-07-21 14:27:56,503 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-21 14:27:56,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 14:27:56,675 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 14:27:56,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:27:56,676 INFO L85 PathProgramCache]: Analyzing trace with hash -312152117, now seen corresponding path program 1 times [2022-07-21 14:27:56,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:27:56,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2115833445] [2022-07-21 14:27:56,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:27:56,678 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:27:56,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:27:56,680 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) [2022-07-21 14:27:56,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-21 14:27:58,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:27:58,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 1379 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 14:27:58,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 14:27:59,511 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-07-21 14:27:59,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 14:27:59,989 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-07-21 14:27:59,989 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 14:27:59,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2115833445] [2022-07-21 14:27:59,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2115833445] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 14:27:59,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 14:27:59,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 14:27:59,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373118762] [2022-07-21 14:27:59,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:27:59,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 14:27:59,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 14:27:59,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 14:27:59,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 14:27:59,991 INFO L87 Difference]: Start difference. First operand 3934 states and 5490 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-21 14:28:00,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:28:00,469 INFO L93 Difference]: Finished difference Result 3940 states and 5495 transitions. [2022-07-21 14:28:00,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 14:28:00,470 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 93 [2022-07-21 14:28:00,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:28:00,483 INFO L225 Difference]: With dead ends: 3940 [2022-07-21 14:28:00,484 INFO L226 Difference]: Without dead ends: 3938 [2022-07-21 14:28:00,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:28:00,486 INFO L413 NwaCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5203 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 14:28:00,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5203 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 14:28:00,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3938 states. [2022-07-21 14:28:00,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3938 to 3938. [2022-07-21 14:28:00,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3938 states, 2643 states have (on average 1.241013999243284) internal successors, (3280), 2695 states have internal predecessors, (3280), 1108 states have call successors, (1108), 184 states have call predecessors, (1108), 183 states have return successors, (1105), 1096 states have call predecessors, (1105), 1105 states have call successors, (1105) [2022-07-21 14:28:00,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3938 states to 3938 states and 5493 transitions. [2022-07-21 14:28:00,711 INFO L78 Accepts]: Start accepts. Automaton has 3938 states and 5493 transitions. Word has length 93 [2022-07-21 14:28:00,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:28:00,712 INFO L495 AbstractCegarLoop]: Abstraction has 3938 states and 5493 transitions. [2022-07-21 14:28:00,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-21 14:28:00,712 INFO L276 IsEmpty]: Start isEmpty. Operand 3938 states and 5493 transitions. [2022-07-21 14:28:00,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 14:28:00,713 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:28:00,714 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 3, 3, 3, 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] [2022-07-21 14:28:00,755 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-21 14:28:00,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 14:28:00,936 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 14:28:00,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:28:00,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1578113781, now seen corresponding path program 1 times [2022-07-21 14:28:00,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:28:00,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [90592092] [2022-07-21 14:28:00,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:28:00,938 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:28:00,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:28:00,939 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) [2022-07-21 14:28:00,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-21 14:28:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:02,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 1386 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 14:28:02,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 14:28:03,569 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-07-21 14:28:03,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 14:28:04,062 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-07-21 14:28:04,062 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 14:28:04,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [90592092] [2022-07-21 14:28:04,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [90592092] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 14:28:04,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 14:28:04,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 14:28:04,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759750327] [2022-07-21 14:28:04,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:28:04,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 14:28:04,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 14:28:04,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 14:28:04,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 14:28:04,064 INFO L87 Difference]: Start difference. First operand 3938 states and 5493 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-21 14:28:04,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:28:04,505 INFO L93 Difference]: Finished difference Result 3944 states and 5498 transitions. [2022-07-21 14:28:04,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 14:28:04,505 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 98 [2022-07-21 14:28:04,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:28:04,518 INFO L225 Difference]: With dead ends: 3944 [2022-07-21 14:28:04,518 INFO L226 Difference]: Without dead ends: 3942 [2022-07-21 14:28:04,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:28:04,520 INFO L413 NwaCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5202 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 14:28:04,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5202 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 14:28:04,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3942 states. [2022-07-21 14:28:04,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3942 to 3942. [2022-07-21 14:28:04,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3942 states, 2646 states have (on average 1.2407407407407407) internal successors, (3283), 2698 states have internal predecessors, (3283), 1108 states have call successors, (1108), 185 states have call predecessors, (1108), 184 states have return successors, (1105), 1096 states have call predecessors, (1105), 1105 states have call successors, (1105) [2022-07-21 14:28:04,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3942 states to 3942 states and 5496 transitions. [2022-07-21 14:28:04,718 INFO L78 Accepts]: Start accepts. Automaton has 3942 states and 5496 transitions. Word has length 98 [2022-07-21 14:28:04,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:28:04,719 INFO L495 AbstractCegarLoop]: Abstraction has 3942 states and 5496 transitions. [2022-07-21 14:28:04,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-21 14:28:04,719 INFO L276 IsEmpty]: Start isEmpty. Operand 3942 states and 5496 transitions. [2022-07-21 14:28:04,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-21 14:28:04,721 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:28:04,721 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 3, 3, 3, 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] [2022-07-21 14:28:04,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-21 14:28:04,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 14:28:04,943 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 14:28:04,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:28:04,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1270263925, now seen corresponding path program 1 times [2022-07-21 14:28:04,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:28:04,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [650138950] [2022-07-21 14:28:04,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:28:04,945 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:28:04,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:28:04,947 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) [2022-07-21 14:28:04,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-21 14:28:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:06,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 1393 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 14:28:06,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 14:28:07,718 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-07-21 14:28:07,718 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 14:28:08,200 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-07-21 14:28:08,200 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 14:28:08,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [650138950] [2022-07-21 14:28:08,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [650138950] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 14:28:08,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 14:28:08,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 14:28:08,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625446009] [2022-07-21 14:28:08,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:28:08,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 14:28:08,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 14:28:08,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 14:28:08,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 14:28:08,202 INFO L87 Difference]: Start difference. First operand 3942 states and 5496 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 14:28:08,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:28:08,625 INFO L93 Difference]: Finished difference Result 3948 states and 5501 transitions. [2022-07-21 14:28:08,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 14:28:08,626 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 103 [2022-07-21 14:28:08,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:28:08,640 INFO L225 Difference]: With dead ends: 3948 [2022-07-21 14:28:08,640 INFO L226 Difference]: Without dead ends: 3946 [2022-07-21 14:28:08,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:28:08,643 INFO L413 NwaCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5201 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 14:28:08,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5201 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 14:28:08,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3946 states. [2022-07-21 14:28:08,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3946 to 3946. [2022-07-21 14:28:08,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3946 states, 2649 states have (on average 1.240468101170253) internal successors, (3286), 2701 states have internal predecessors, (3286), 1108 states have call successors, (1108), 186 states have call predecessors, (1108), 185 states have return successors, (1105), 1096 states have call predecessors, (1105), 1105 states have call successors, (1105) [2022-07-21 14:28:08,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3946 states to 3946 states and 5499 transitions. [2022-07-21 14:28:08,844 INFO L78 Accepts]: Start accepts. Automaton has 3946 states and 5499 transitions. Word has length 103 [2022-07-21 14:28:08,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:28:08,844 INFO L495 AbstractCegarLoop]: Abstraction has 3946 states and 5499 transitions. [2022-07-21 14:28:08,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 14:28:08,845 INFO L276 IsEmpty]: Start isEmpty. Operand 3946 states and 5499 transitions. [2022-07-21 14:28:08,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-21 14:28:08,846 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:28:08,846 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 3, 3, 3, 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] [2022-07-21 14:28:08,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-21 14:28:09,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 14:28:09,067 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 14:28:09,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:28:09,068 INFO L85 PathProgramCache]: Analyzing trace with hash -305427253, now seen corresponding path program 1 times [2022-07-21 14:28:09,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:28:09,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1915696617] [2022-07-21 14:28:09,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:28:09,070 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:28:09,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:28:09,072 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) [2022-07-21 14:28:09,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-21 14:28:10,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:10,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 1400 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 14:28:10,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 14:28:11,832 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2022-07-21 14:28:11,833 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 14:28:12,322 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2022-07-21 14:28:12,322 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 14:28:12,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1915696617] [2022-07-21 14:28:12,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1915696617] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 14:28:12,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 14:28:12,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 14:28:12,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659322425] [2022-07-21 14:28:12,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:28:12,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 14:28:12,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 14:28:12,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 14:28:12,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 14:28:12,324 INFO L87 Difference]: Start difference. First operand 3946 states and 5499 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 14:28:12,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:28:12,772 INFO L93 Difference]: Finished difference Result 3952 states and 5504 transitions. [2022-07-21 14:28:12,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 14:28:12,772 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 108 [2022-07-21 14:28:12,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:28:12,785 INFO L225 Difference]: With dead ends: 3952 [2022-07-21 14:28:12,786 INFO L226 Difference]: Without dead ends: 3950 [2022-07-21 14:28:12,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:28:12,788 INFO L413 NwaCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5200 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 14:28:12,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5200 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 14:28:12,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3950 states. [2022-07-21 14:28:12,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3950 to 3950. [2022-07-21 14:28:12,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3950 states, 2652 states have (on average 1.2401960784313726) internal successors, (3289), 2704 states have internal predecessors, (3289), 1108 states have call successors, (1108), 187 states have call predecessors, (1108), 186 states have return successors, (1105), 1096 states have call predecessors, (1105), 1105 states have call successors, (1105) [2022-07-21 14:28:12,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3950 states to 3950 states and 5502 transitions. [2022-07-21 14:28:12,998 INFO L78 Accepts]: Start accepts. Automaton has 3950 states and 5502 transitions. Word has length 108 [2022-07-21 14:28:12,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:28:12,998 INFO L495 AbstractCegarLoop]: Abstraction has 3950 states and 5502 transitions. [2022-07-21 14:28:12,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 14:28:12,999 INFO L276 IsEmpty]: Start isEmpty. Operand 3950 states and 5502 transitions. [2022-07-21 14:28:13,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-21 14:28:13,001 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:28:13,001 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 3, 3, 3, 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] [2022-07-21 14:28:13,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-21 14:28:13,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 14:28:13,219 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 14:28:13,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:28:13,219 INFO L85 PathProgramCache]: Analyzing trace with hash -629493941, now seen corresponding path program 1 times [2022-07-21 14:28:13,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:28:13,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [842319978] [2022-07-21 14:28:13,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:28:13,221 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:28:13,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:28:13,223 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) [2022-07-21 14:28:13,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-21 14:28:14,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:14,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 1407 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 14:28:14,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 14:28:16,083 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2022-07-21 14:28:16,083 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 14:28:16,578 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2022-07-21 14:28:16,578 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 14:28:16,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [842319978] [2022-07-21 14:28:16,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [842319978] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 14:28:16,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 14:28:16,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 14:28:16,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049606994] [2022-07-21 14:28:16,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:28:16,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 14:28:16,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 14:28:16,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 14:28:16,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 14:28:16,580 INFO L87 Difference]: Start difference. First operand 3950 states and 5502 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 14:28:17,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:28:17,023 INFO L93 Difference]: Finished difference Result 3956 states and 5507 transitions. [2022-07-21 14:28:17,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 14:28:17,023 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 113 [2022-07-21 14:28:17,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:28:17,038 INFO L225 Difference]: With dead ends: 3956 [2022-07-21 14:28:17,038 INFO L226 Difference]: Without dead ends: 3954 [2022-07-21 14:28:17,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:28:17,041 INFO L413 NwaCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5199 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 14:28:17,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5199 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 14:28:17,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3954 states. [2022-07-21 14:28:17,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3954 to 3954. [2022-07-21 14:28:17,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3954 states, 2655 states have (on average 1.239924670433145) internal successors, (3292), 2707 states have internal predecessors, (3292), 1108 states have call successors, (1108), 188 states have call predecessors, (1108), 187 states have return successors, (1105), 1096 states have call predecessors, (1105), 1105 states have call successors, (1105) [2022-07-21 14:28:17,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3954 states to 3954 states and 5505 transitions. [2022-07-21 14:28:17,288 INFO L78 Accepts]: Start accepts. Automaton has 3954 states and 5505 transitions. Word has length 113 [2022-07-21 14:28:17,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:28:17,289 INFO L495 AbstractCegarLoop]: Abstraction has 3954 states and 5505 transitions. [2022-07-21 14:28:17,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 14:28:17,289 INFO L276 IsEmpty]: Start isEmpty. Operand 3954 states and 5505 transitions. [2022-07-21 14:28:17,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-21 14:28:17,290 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:28:17,290 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 3, 3, 3, 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] [2022-07-21 14:28:17,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-21 14:28:17,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 14:28:17,504 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 14:28:17,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:28:17,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1652176011, now seen corresponding path program 1 times [2022-07-21 14:28:17,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:28:17,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1645311172] [2022-07-21 14:28:17,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:28:17,506 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:28:17,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:28:17,508 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) [2022-07-21 14:28:17,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-21 14:28:19,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:19,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 1414 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 14:28:19,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 14:28:20,675 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2022-07-21 14:28:20,676 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 14:28:21,249 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2022-07-21 14:28:21,250 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 14:28:21,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1645311172] [2022-07-21 14:28:21,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1645311172] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 14:28:21,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 14:28:21,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 14:28:21,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294110267] [2022-07-21 14:28:21,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:28:21,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 14:28:21,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 14:28:21,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 14:28:21,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 14:28:21,251 INFO L87 Difference]: Start difference. First operand 3954 states and 5505 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-21 14:28:21,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:28:21,690 INFO L93 Difference]: Finished difference Result 3960 states and 5510 transitions. [2022-07-21 14:28:21,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 14:28:21,691 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 118 [2022-07-21 14:28:21,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:28:21,703 INFO L225 Difference]: With dead ends: 3960 [2022-07-21 14:28:21,703 INFO L226 Difference]: Without dead ends: 3956 [2022-07-21 14:28:21,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:28:21,706 INFO L413 NwaCegarLoop]: 5229 mSDtfsCounter, 5197 mSDsluCounter, 10435 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5198 SdHoareTripleChecker+Valid, 15664 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 14:28:21,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5198 Valid, 15664 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 14:28:21,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3956 states. [2022-07-21 14:28:21,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3956 to 3956. [2022-07-21 14:28:21,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3956 states, 2657 states have (on average 1.2393677079412873) internal successors, (3293), 2708 states have internal predecessors, (3293), 1108 states have call successors, (1108), 189 states have call predecessors, (1108), 187 states have return successors, (1105), 1096 states have call predecessors, (1105), 1105 states have call successors, (1105) [2022-07-21 14:28:21,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3956 states to 3956 states and 5506 transitions. [2022-07-21 14:28:21,953 INFO L78 Accepts]: Start accepts. Automaton has 3956 states and 5506 transitions. Word has length 118 [2022-07-21 14:28:21,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:28:21,954 INFO L495 AbstractCegarLoop]: Abstraction has 3956 states and 5506 transitions. [2022-07-21 14:28:21,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-21 14:28:21,954 INFO L276 IsEmpty]: Start isEmpty. Operand 3956 states and 5506 transitions. [2022-07-21 14:28:21,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-07-21 14:28:21,956 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:28:21,956 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 3, 3, 3, 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] [2022-07-21 14:28:22,007 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2022-07-21 14:28:22,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 14:28:22,175 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 14:28:22,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:28:22,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1673072395, now seen corresponding path program 1 times [2022-07-21 14:28:22,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:28:22,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1391334960] [2022-07-21 14:28:22,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:28:22,178 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:28:22,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:28:22,180 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) [2022-07-21 14:28:22,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-21 14:28:23,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:23,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 1421 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 14:28:23,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 14:28:25,315 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-07-21 14:28:25,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 14:28:25,845 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-07-21 14:28:25,846 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 14:28:25,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1391334960] [2022-07-21 14:28:25,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1391334960] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 14:28:25,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 14:28:25,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 14:28:25,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071305409] [2022-07-21 14:28:25,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:28:25,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 14:28:25,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 14:28:25,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 14:28:25,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 14:28:25,848 INFO L87 Difference]: Start difference. First operand 3956 states and 5506 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2022-07-21 14:28:26,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:28:26,470 INFO L93 Difference]: Finished difference Result 7874 states and 10961 transitions. [2022-07-21 14:28:26,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 14:28:26,470 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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 123 [2022-07-21 14:28:26,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:28:26,496 INFO L225 Difference]: With dead ends: 7874 [2022-07-21 14:28:26,496 INFO L226 Difference]: Without dead ends: 7762 [2022-07-21 14:28:26,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:28:26,500 INFO L413 NwaCegarLoop]: 6568 mSDtfsCounter, 5196 mSDsluCounter, 18299 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5196 SdHoareTripleChecker+Valid, 24867 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 14:28:26,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5196 Valid, 24867 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 14:28:26,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7762 states. [2022-07-21 14:28:26,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7762 to 7755. [2022-07-21 14:28:26,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7755 states, 5212 states have (on average 1.2429009976976209) internal successors, (6478), 5313 states have internal predecessors, (6478), 2181 states have call successors, (2181), 361 states have call predecessors, (2181), 358 states have return successors, (2177), 2155 states have call predecessors, (2177), 2177 states have call successors, (2177) [2022-07-21 14:28:27,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7755 states to 7755 states and 10836 transitions. [2022-07-21 14:28:27,014 INFO L78 Accepts]: Start accepts. Automaton has 7755 states and 10836 transitions. Word has length 123 [2022-07-21 14:28:27,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:28:27,014 INFO L495 AbstractCegarLoop]: Abstraction has 7755 states and 10836 transitions. [2022-07-21 14:28:27,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2022-07-21 14:28:27,015 INFO L276 IsEmpty]: Start isEmpty. Operand 7755 states and 10836 transitions. [2022-07-21 14:28:27,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-07-21 14:28:27,019 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:28:27,019 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 14:28:27,065 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-21 14:28:27,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 14:28:27,236 INFO L420 AbstractCegarLoop]: === Iteration 18 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 14:28:27,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:28:27,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1096775537, now seen corresponding path program 1 times [2022-07-21 14:28:27,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:28:27,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1124312015] [2022-07-21 14:28:27,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:28:27,238 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:28:27,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:28:27,240 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) [2022-07-21 14:28:27,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-21 14:28:29,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:29,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 1753 conjuncts, 18 conjunts are in the unsatisfiable core [2022-07-21 14:28:29,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 14:28:29,809 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 214 proven. 3 refuted. 0 times theorem prover too weak. 401 trivial. 0 not checked. [2022-07-21 14:28:29,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 14:28:31,147 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 3 proven. 69 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2022-07-21 14:28:31,148 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 14:28:31,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1124312015] [2022-07-21 14:28:31,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1124312015] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 14:28:31,148 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 14:28:31,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2022-07-21 14:28:31,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878817304] [2022-07-21 14:28:31,148 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 14:28:31,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 14:28:31,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 14:28:31,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 14:28:31,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-21 14:28:31,150 INFO L87 Difference]: Start difference. First operand 7755 states and 10836 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 3 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (42), 4 states have call predecessors, (42), 3 states have call successors, (42) [2022-07-21 14:28:34,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:28:34,275 INFO L93 Difference]: Finished difference Result 15501 states and 21658 transitions. [2022-07-21 14:28:34,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 14:28:34,277 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 3 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (42), 4 states have call predecessors, (42), 3 states have call successors, (42) Word has length 212 [2022-07-21 14:28:34,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:28:34,302 INFO L225 Difference]: With dead ends: 15501 [2022-07-21 14:28:34,302 INFO L226 Difference]: Without dead ends: 7759 [2022-07-21 14:28:34,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 412 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-07-21 14:28:34,330 INFO L413 NwaCegarLoop]: 5192 mSDtfsCounter, 1257 mSDsluCounter, 34538 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1695 SdHoareTripleChecker+Valid, 39730 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-21 14:28:34,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1695 Valid, 39730 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-21 14:28:34,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7759 states. [2022-07-21 14:28:34,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7759 to 7755. [2022-07-21 14:28:34,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7755 states, 5212 states have (on average 1.2427091327705295) internal successors, (6477), 5312 states have internal predecessors, (6477), 2181 states have call successors, (2181), 361 states have call predecessors, (2181), 358 states have return successors, (2177), 2155 states have call predecessors, (2177), 2177 states have call successors, (2177) [2022-07-21 14:28:34,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7755 states to 7755 states and 10835 transitions. [2022-07-21 14:28:34,951 INFO L78 Accepts]: Start accepts. Automaton has 7755 states and 10835 transitions. Word has length 212 [2022-07-21 14:28:34,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:28:34,952 INFO L495 AbstractCegarLoop]: Abstraction has 7755 states and 10835 transitions. [2022-07-21 14:28:34,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 3 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (42), 4 states have call predecessors, (42), 3 states have call successors, (42) [2022-07-21 14:28:34,952 INFO L276 IsEmpty]: Start isEmpty. Operand 7755 states and 10835 transitions. [2022-07-21 14:28:34,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-07-21 14:28:34,955 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:28:34,955 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 14:28:35,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-07-21 14:28:35,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 14:28:35,175 INFO L420 AbstractCegarLoop]: === Iteration 19 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 14:28:35,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:28:35,176 INFO L85 PathProgramCache]: Analyzing trace with hash 34564430, now seen corresponding path program 1 times [2022-07-21 14:28:35,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:28:35,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [534544239] [2022-07-21 14:28:35,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:28:35,178 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:28:35,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:28:35,180 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) [2022-07-21 14:28:35,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-07-21 14:28:37,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:37,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 1765 conjuncts, 22 conjunts are in the unsatisfiable core [2022-07-21 14:28:37,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 14:28:38,351 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 74 proven. 3 refuted. 0 times theorem prover too weak. 547 trivial. 0 not checked. [2022-07-21 14:28:38,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 14:28:40,071 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 69 proven. 3 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-07-21 14:28:40,071 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 14:28:40,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [534544239] [2022-07-21 14:28:40,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [534544239] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 14:28:40,072 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 14:28:40,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2022-07-21 14:28:40,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693979591] [2022-07-21 14:28:40,072 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 14:28:40,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-21 14:28:40,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 14:28:40,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-21 14:28:40,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-21 14:28:40,074 INFO L87 Difference]: Start difference. First operand 7755 states and 10835 transitions. Second operand has 14 states, 13 states have (on average 5.461538461538462) internal successors, (71), 12 states have internal predecessors, (71), 5 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (30), 6 states have call predecessors, (30), 5 states have call successors, (30) [2022-07-21 14:28:43,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:28:43,649 INFO L93 Difference]: Finished difference Result 8185 states and 11334 transitions. [2022-07-21 14:28:43,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 14:28:43,650 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.461538461538462) internal successors, (71), 12 states have internal predecessors, (71), 5 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (30), 6 states have call predecessors, (30), 5 states have call successors, (30) Word has length 216 [2022-07-21 14:28:43,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:28:43,674 INFO L225 Difference]: With dead ends: 8185 [2022-07-21 14:28:43,674 INFO L226 Difference]: Without dead ends: 7767 [2022-07-21 14:28:43,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 418 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-07-21 14:28:43,680 INFO L413 NwaCegarLoop]: 5199 mSDtfsCounter, 54 mSDsluCounter, 46611 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 51810 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-07-21 14:28:43,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 51810 Invalid, 468 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-07-21 14:28:43,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7767 states. [2022-07-21 14:28:44,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7767 to 7755. [2022-07-21 14:28:44,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7755 states, 5212 states have (on average 1.2423254029163469) internal successors, (6475), 5310 states have internal predecessors, (6475), 2181 states have call successors, (2181), 361 states have call predecessors, (2181), 358 states have return successors, (2177), 2155 states have call predecessors, (2177), 2177 states have call successors, (2177) [2022-07-21 14:28:44,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7755 states to 7755 states and 10833 transitions. [2022-07-21 14:28:44,248 INFO L78 Accepts]: Start accepts. Automaton has 7755 states and 10833 transitions. Word has length 216 [2022-07-21 14:28:44,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:28:44,250 INFO L495 AbstractCegarLoop]: Abstraction has 7755 states and 10833 transitions. [2022-07-21 14:28:44,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.461538461538462) internal successors, (71), 12 states have internal predecessors, (71), 5 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (30), 6 states have call predecessors, (30), 5 states have call successors, (30) [2022-07-21 14:28:44,250 INFO L276 IsEmpty]: Start isEmpty. Operand 7755 states and 10833 transitions. [2022-07-21 14:28:44,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-07-21 14:28:44,253 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:28:44,254 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 14:28:44,304 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-07-21 14:28:44,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 14:28:44,479 INFO L420 AbstractCegarLoop]: === Iteration 20 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 14:28:44,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:28:44,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1447891691, now seen corresponding path program 1 times [2022-07-21 14:28:44,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:28:44,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [862978929] [2022-07-21 14:28:44,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:28:44,482 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:28:44,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:28:44,483 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) [2022-07-21 14:28:44,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-07-21 14:28:46,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:46,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 1777 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 14:28:46,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 14:28:49,333 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2022-07-21 14:28:49,333 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 14:28:49,333 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 14:28:49,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [862978929] [2022-07-21 14:28:49,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [862978929] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 14:28:49,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 14:28:49,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 14:28:49,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111195031] [2022-07-21 14:28:49,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:28:49,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 14:28:49,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 14:28:49,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 14:28:49,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 14:28:49,335 INFO L87 Difference]: Start difference. First operand 7755 states and 10833 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, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-07-21 14:28:49,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:28:49,777 INFO L93 Difference]: Finished difference Result 7757 states and 10834 transitions. [2022-07-21 14:28:49,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 14:28:49,777 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, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 220 [2022-07-21 14:28:49,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:28:49,797 INFO L225 Difference]: With dead ends: 7757 [2022-07-21 14:28:49,797 INFO L226 Difference]: Without dead ends: 7755 [2022-07-21 14:28:49,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 14:28:49,800 INFO L413 NwaCegarLoop]: 5343 mSDtfsCounter, 5034 mSDsluCounter, 10995 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5035 SdHoareTripleChecker+Valid, 16338 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 14:28:49,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5035 Valid, 16338 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 14:28:49,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7755 states. [2022-07-21 14:28:50,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7755 to 7753. [2022-07-21 14:28:50,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7753 states, 5211 states have (on average 1.241988102091729) internal successors, (6472), 5308 states have internal predecessors, (6472), 2181 states have call successors, (2181), 361 states have call predecessors, (2181), 358 states have return successors, (2177), 2155 states have call predecessors, (2177), 2177 states have call successors, (2177) [2022-07-21 14:28:50,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7753 states to 7753 states and 10830 transitions. [2022-07-21 14:28:50,334 INFO L78 Accepts]: Start accepts. Automaton has 7753 states and 10830 transitions. Word has length 220 [2022-07-21 14:28:50,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:28:50,335 INFO L495 AbstractCegarLoop]: Abstraction has 7753 states and 10830 transitions. [2022-07-21 14:28:50,335 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, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-07-21 14:28:50,335 INFO L276 IsEmpty]: Start isEmpty. Operand 7753 states and 10830 transitions. [2022-07-21 14:28:50,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-07-21 14:28:50,344 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:28:50,344 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 14:28:50,393 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Ended with exit code 0 [2022-07-21 14:28:50,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 14:28:50,564 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 14:28:50,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:28:50,564 INFO L85 PathProgramCache]: Analyzing trace with hash 660255781, now seen corresponding path program 1 times [2022-07-21 14:28:50,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:28:50,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [924453924] [2022-07-21 14:28:50,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:28:50,566 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:28:50,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:28:50,567 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 14:28:50,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-07-21 14:28:53,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:53,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 1939 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 14:28:53,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 14:28:53,229 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2022-07-21 14:28:53,230 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 14:28:53,230 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 14:28:53,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [924453924] [2022-07-21 14:28:53,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [924453924] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 14:28:53,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 14:28:53,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 14:28:53,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220337714] [2022-07-21 14:28:53,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:28:53,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 14:28:53,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 14:28:53,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 14:28:53,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 14:28:53,232 INFO L87 Difference]: Start difference. First operand 7753 states and 10830 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) [2022-07-21 14:28:53,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:28:53,613 INFO L93 Difference]: Finished difference Result 15557 states and 22055 transitions. [2022-07-21 14:28:53,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 14:28:53,614 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) Word has length 300 [2022-07-21 14:28:53,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:28:53,634 INFO L225 Difference]: With dead ends: 15557 [2022-07-21 14:28:53,634 INFO L226 Difference]: Without dead ends: 7821 [2022-07-21 14:28:53,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 14:28:53,663 INFO L413 NwaCegarLoop]: 5223 mSDtfsCounter, 12 mSDsluCounter, 5216 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 10439 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 14:28:53,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 10439 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 14:28:53,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7821 states. [2022-07-21 14:28:54,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7821 to 7757. [2022-07-21 14:28:54,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7757 states, 5215 states have (on average 1.2418024928092042) internal successors, (6476), 5312 states have internal predecessors, (6476), 2181 states have call successors, (2181), 361 states have call predecessors, (2181), 358 states have return successors, (2177), 2155 states have call predecessors, (2177), 2177 states have call successors, (2177) [2022-07-21 14:28:54,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7757 states to 7757 states and 10834 transitions. [2022-07-21 14:28:54,227 INFO L78 Accepts]: Start accepts. Automaton has 7757 states and 10834 transitions. Word has length 300 [2022-07-21 14:28:54,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:28:54,228 INFO L495 AbstractCegarLoop]: Abstraction has 7757 states and 10834 transitions. [2022-07-21 14:28:54,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) [2022-07-21 14:28:54,228 INFO L276 IsEmpty]: Start isEmpty. Operand 7757 states and 10834 transitions. [2022-07-21 14:28:54,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2022-07-21 14:28:54,237 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:28:54,237 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 14:28:54,284 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Ended with exit code 0 [2022-07-21 14:28:54,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 14:28:54,455 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-07-21 14:28:54,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:28:54,456 INFO L85 PathProgramCache]: Analyzing trace with hash -2090535692, now seen corresponding path program 1 times [2022-07-21 14:28:54,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:28:54,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [286541555] [2022-07-21 14:28:54,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:28:54,458 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:28:54,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:28:54,459 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 14:28:54,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-07-21 14:28:56,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:28:57,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 1964 conjuncts, 18 conjunts are in the unsatisfiable core [2022-07-21 14:28:57,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 14:29:00,171 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2022-07-21 14:29:00,171 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 14:29:00,172 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 14:29:00,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [286541555] [2022-07-21 14:29:00,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [286541555] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 14:29:00,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 14:29:00,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-21 14:29:00,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531497822] [2022-07-21 14:29:00,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:29:00,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-21 14:29:00,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 14:29:00,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-21 14:29:00,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-07-21 14:29:00,173 INFO L87 Difference]: Start difference. First operand 7757 states and 10834 transitions. Second operand has 14 states, 12 states have (on average 9.916666666666666) internal successors, (119), 13 states have internal predecessors, (119), 7 states have call successors, (39), 4 states have call predecessors, (39), 6 states have return successors, (36), 6 states have call predecessors, (36), 6 states have call successors, (36) [2022-07-21 14:29:06,077 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 14:29:08,116 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 14:29:10,134 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 14:29:13,383 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 14:29:15,454 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 14:29:21,068 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 14:29:23,077 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []