./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.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 4ee317e42bc2e06685ca0df819e5fc98feaca323581d52409851fe6eefd66a2a --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 15:01:20,658 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 15:01:20,661 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 15:01:20,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 15:01:20,703 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 15:01:20,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 15:01:20,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 15:01:20,711 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 15:01:20,713 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 15:01:20,717 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 15:01:20,719 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 15:01:20,723 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 15:01:20,723 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 15:01:20,726 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 15:01:20,727 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 15:01:20,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 15:01:20,730 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 15:01:20,732 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 15:01:20,733 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 15:01:20,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 15:01:20,740 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 15:01:20,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 15:01:20,743 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 15:01:20,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 15:01:20,745 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 15:01:20,751 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 15:01:20,751 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 15:01:20,751 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 15:01:20,752 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 15:01:20,753 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 15:01:20,753 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 15:01:20,754 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 15:01:20,755 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 15:01:20,756 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 15:01:20,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 15:01:20,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 15:01:20,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 15:01:20,759 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 15:01:20,759 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 15:01:20,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 15:01:20,760 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 15:01:20,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 15:01:20,770 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 15:01:20,808 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 15:01:20,808 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 15:01:20,809 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 15:01:20,809 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 15:01:20,810 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 15:01:20,810 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 15:01:20,811 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 15:01:20,811 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 15:01:20,811 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 15:01:20,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 15:01:20,813 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 15:01:20,813 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 15:01:20,813 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 15:01:20,813 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 15:01:20,814 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 15:01:20,814 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 15:01:20,814 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 15:01:20,814 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 15:01:20,815 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 15:01:20,815 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 15:01:20,815 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 15:01:20,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 15:01:20,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 15:01:20,816 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 15:01:20,816 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 15:01:20,816 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 15:01:20,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 15:01:20,817 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 15:01:20,817 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 15:01:20,817 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 15:01:20,817 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ee317e42bc2e06685ca0df819e5fc98feaca323581d52409851fe6eefd66a2a [2022-07-21 15:01:21,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 15:01:21,178 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 15:01:21,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 15:01:21,182 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 15:01:21,185 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 15:01:21,187 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i [2022-07-21 15:01:21,252 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a8f7d0cf/057c1dfada4640479e3b6614ae9505fa/FLAG5d1b4cd22 [2022-07-21 15:01:22,016 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 15:01:22,017 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i [2022-07-21 15:01:22,076 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a8f7d0cf/057c1dfada4640479e3b6614ae9505fa/FLAG5d1b4cd22 [2022-07-21 15:01:22,280 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a8f7d0cf/057c1dfada4640479e3b6614ae9505fa [2022-07-21 15:01:22,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 15:01:22,283 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 15:01:22,286 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 15:01:22,287 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 15:01:22,290 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 15:01:22,291 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:01:22" (1/1) ... [2022-07-21 15:01:22,292 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c10f7d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:01:22, skipping insertion in model container [2022-07-21 15:01:22,292 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:01:22" (1/1) ... [2022-07-21 15:01:22,298 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 15:01:22,473 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 15:01:24,686 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323320,323333] [2022-07-21 15:01:24,689 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323489,323502] [2022-07-21 15:01:24,689 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323656,323669] [2022-07-21 15:01:24,690 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323824,323837] [2022-07-21 15:01:24,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 15:01:24,767 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 15:01:24,905 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: pci_pmr = pci_pmr & 458752U [6161] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-21 15:01:24,912 INFO L158 Benchmark]: Toolchain (without parser) took 2627.03ms. Allocated memory was 52.4MB in the beginning and 98.6MB in the end (delta: 46.1MB). Free memory was 27.1MB in the beginning and 36.2MB in the end (delta: -9.1MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. [2022-07-21 15:01:24,913 INFO L158 Benchmark]: CDTParser took 0.55ms. Allocated memory is still 52.4MB. Free memory is still 34.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 15:01:24,914 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2623.32ms. Allocated memory was 52.4MB in the beginning and 98.6MB in the end (delta: 46.1MB). Free memory was 26.9MB in the beginning and 36.2MB in the end (delta: -9.3MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. [2022-07-21 15:01:24,916 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55ms. Allocated memory is still 52.4MB. Free memory is still 34.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2623.32ms. Allocated memory was 52.4MB in the beginning and 98.6MB in the end (delta: 46.1MB). Free memory was 26.9MB in the beginning and 36.2MB in the end (delta: -9.3MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: pci_pmr = pci_pmr & 458752U [6161] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: pci_pmr = pci_pmr & 458752U [6161]: 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.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 4ee317e42bc2e06685ca0df819e5fc98feaca323581d52409851fe6eefd66a2a --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 15:01:26,577 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 15:01:26,579 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 15:01:26,621 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 15:01:26,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 15:01:26,623 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 15:01:26,627 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 15:01:26,630 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 15:01:26,632 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 15:01:26,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 15:01:26,637 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 15:01:26,639 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 15:01:26,639 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 15:01:26,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 15:01:26,642 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 15:01:26,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 15:01:26,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 15:01:26,651 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 15:01:26,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 15:01:26,658 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 15:01:26,659 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 15:01:26,660 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 15:01:26,662 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 15:01:26,663 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 15:01:26,664 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 15:01:26,669 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 15:01:26,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 15:01:26,672 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 15:01:26,672 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 15:01:26,673 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 15:01:26,674 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 15:01:26,674 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 15:01:26,675 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 15:01:26,676 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 15:01:26,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 15:01:26,678 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 15:01:26,678 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 15:01:26,679 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 15:01:26,679 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 15:01:26,679 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 15:01:26,680 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 15:01:26,681 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 15:01:26,686 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 15:01:26,710 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 15:01:26,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 15:01:26,710 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 15:01:26,710 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 15:01:26,711 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 15:01:26,711 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 15:01:26,712 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 15:01:26,712 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 15:01:26,712 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 15:01:26,712 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 15:01:26,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 15:01:26,713 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 15:01:26,713 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 15:01:26,713 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 15:01:26,713 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 15:01:26,713 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 15:01:26,714 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 15:01:26,714 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 15:01:26,714 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 15:01:26,714 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 15:01:26,714 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 15:01:26,715 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 15:01:26,715 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 15:01:26,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 15:01:26,715 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 15:01:26,715 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 15:01:26,715 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 15:01:26,716 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 15:01:26,716 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 15:01:26,716 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 15:01:26,716 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 15:01:26,716 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 15:01:26,717 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 15:01:26,717 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ee317e42bc2e06685ca0df819e5fc98feaca323581d52409851fe6eefd66a2a [2022-07-21 15:01:27,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 15:01:27,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 15:01:27,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 15:01:27,024 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 15:01:27,024 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 15:01:27,025 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i [2022-07-21 15:01:27,095 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b023556d/aa056bbfe30242d98b683447b8cb126d/FLAG98c3fbbb1 [2022-07-21 15:01:27,889 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 15:01:27,890 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i [2022-07-21 15:01:27,940 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b023556d/aa056bbfe30242d98b683447b8cb126d/FLAG98c3fbbb1 [2022-07-21 15:01:28,436 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b023556d/aa056bbfe30242d98b683447b8cb126d [2022-07-21 15:01:28,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 15:01:28,440 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 15:01:28,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 15:01:28,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 15:01:28,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 15:01:28,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:01:28" (1/1) ... [2022-07-21 15:01:28,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dfad9c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:01:28, skipping insertion in model container [2022-07-21 15:01:28,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:01:28" (1/1) ... [2022-07-21 15:01:28,453 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 15:01:28,621 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 15:01:30,908 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323320,323333] [2022-07-21 15:01:30,910 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323489,323502] [2022-07-21 15:01:30,911 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323656,323669] [2022-07-21 15:01:30,912 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323824,323837] [2022-07-21 15:01:30,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 15:01:30,985 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 15:01:31,033 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 15:01:31,381 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323320,323333] [2022-07-21 15:01:31,381 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323489,323502] [2022-07-21 15:01:31,382 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323656,323669] [2022-07-21 15:01:31,382 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323824,323837] [2022-07-21 15:01:31,387 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 15:01:31,429 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 15:01:31,747 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323320,323333] [2022-07-21 15:01:31,748 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323489,323502] [2022-07-21 15:01:31,749 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323656,323669] [2022-07-21 15:01:31,749 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323824,323837] [2022-07-21 15:01:31,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 15:01:31,927 INFO L208 MainTranslator]: Completed translation [2022-07-21 15:01:31,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:01:31 WrapperNode [2022-07-21 15:01:31,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 15:01:31,929 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 15:01:31,930 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 15:01:31,930 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 15:01:31,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:01:31" (1/1) ... [2022-07-21 15:01:32,039 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:01:31" (1/1) ... [2022-07-21 15:01:32,210 INFO L137 Inliner]: procedures = 436, calls = 1985, calls flagged for inlining = 201, calls inlined = 184, statements flattened = 4910 [2022-07-21 15:01:32,211 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 15:01:32,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 15:01:32,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 15:01:32,212 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 15:01:32,221 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:01:31" (1/1) ... [2022-07-21 15:01:32,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:01:31" (1/1) ... [2022-07-21 15:01:32,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:01:31" (1/1) ... [2022-07-21 15:01:32,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:01:31" (1/1) ... [2022-07-21 15:01:32,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:01:31" (1/1) ... [2022-07-21 15:01:32,379 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:01:31" (1/1) ... [2022-07-21 15:01:32,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:01:31" (1/1) ... [2022-07-21 15:01:32,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 15:01:32,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 15:01:32,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 15:01:32,454 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 15:01:32,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:01:31" (1/1) ... [2022-07-21 15:01:32,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 15:01:32,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 15:01:32,488 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 15:01:32,513 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 15:01:32,529 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-21 15:01:32,530 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-21 15:01:32,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 15:01:32,530 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 15:01:32,530 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-21 15:01:32,531 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-21 15:01:32,531 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_set_filter_mode [2022-07-21 15:01:32,531 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_set_filter_mode [2022-07-21 15:01:32,531 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-21 15:01:32,531 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-21 15:01:32,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 15:01:32,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 15:01:32,532 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_resume [2022-07-21 15:01:32,532 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_resume [2022-07-21 15:01:32,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 15:01:32,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 15:01:32,533 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-21 15:01:32,533 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-21 15:01:32,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_dmfe_board_info [2022-07-21 15:01:32,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_dmfe_board_info [2022-07-21 15:01:32,534 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-21 15:01:32,534 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-21 15:01:32,534 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-07-21 15:01:32,534 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-07-21 15:01:32,534 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-07-21 15:01:32,534 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-07-21 15:01:32,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2022-07-21 15:01:32,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2022-07-21 15:01:32,535 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-21 15:01:32,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-21 15:01:32,535 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-21 15:01:32,536 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-21 15:01:32,536 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_reuse_skb [2022-07-21 15:01:32,536 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_reuse_skb [2022-07-21 15:01:32,536 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2022-07-21 15:01:32,536 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2022-07-21 15:01:32,536 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-21 15:01:32,537 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-21 15:01:32,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-21 15:01:32,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-21 15:01:32,538 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-21 15:01:32,538 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-21 15:01:32,538 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-21 15:01:32,539 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-21 15:01:32,539 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-21 15:01:32,539 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-21 15:01:32,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-21 15:01:32,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-21 15:01:32,540 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write [2022-07-21 15:01:32,540 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write [2022-07-21 15:01:32,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 15:01:32,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 15:01:32,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-21 15:01:32,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-21 15:01:32,541 INFO L130 BoogieDeclarations]: Found specification of procedure poll_dmfe [2022-07-21 15:01:32,541 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_dmfe [2022-07-21 15:01:32,541 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-21 15:01:32,541 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-21 15:01:32,541 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-21 15:01:32,542 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-21 15:01:32,542 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-07-21 15:01:32,542 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-07-21 15:01:32,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-21 15:01:32,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-21 15:01:32,543 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_remove_one [2022-07-21 15:01:32,543 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_remove_one [2022-07-21 15:01:32,543 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write_1bit [2022-07-21 15:01:32,543 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write_1bit [2022-07-21 15:01:32,543 INFO L130 BoogieDeclarations]: Found specification of procedure dm9132_id_table [2022-07-21 15:01:32,543 INFO L138 BoogieDeclarations]: Found implementation of procedure dm9132_id_table [2022-07-21 15:01:32,544 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-21 15:01:32,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-21 15:01:32,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-21 15:01:32,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-21 15:01:32,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-21 15:01:32,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-21 15:01:32,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-21 15:01:32,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-21 15:01:32,545 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_interrupt [2022-07-21 15:01:32,546 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_interrupt [2022-07-21 15:01:32,546 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-21 15:01:32,546 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-21 15:01:32,546 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read_1bit [2022-07-21 15:01:32,547 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read_1bit [2022-07-21 15:01:32,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-21 15:01:32,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-21 15:01:32,547 INFO L130 BoogieDeclarations]: Found specification of procedure cal_CRC [2022-07-21 15:01:32,547 INFO L138 BoogieDeclarations]: Found implementation of procedure cal_CRC [2022-07-21 15:01:32,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 15:01:32,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-21 15:01:32,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-21 15:01:32,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-21 15:01:32,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-21 15:01:32,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 15:01:32,548 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2022-07-21 15:01:32,548 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2022-07-21 15:01:32,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-21 15:01:32,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-21 15:01:32,549 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-21 15:01:32,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-21 15:01:32,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 15:01:32,551 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-07-21 15:01:32,551 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-07-21 15:01:32,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-21 15:01:32,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-21 15:01:32,553 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 15:01:32,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 15:01:32,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-21 15:01:32,553 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-07-21 15:01:32,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-07-21 15:01:32,553 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_free_rxbuffer [2022-07-21 15:01:32,553 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_free_rxbuffer [2022-07-21 15:01:32,553 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-21 15:01:32,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-21 15:01:32,553 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-21 15:01:32,554 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-21 15:01:32,554 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-21 15:01:32,554 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-21 15:01:32,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-21 15:01:32,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-21 15:01:32,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-21 15:01:32,554 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_stop [2022-07-21 15:01:32,554 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_stop [2022-07-21 15:01:32,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 15:01:32,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 15:01:32,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-21 15:01:32,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-21 15:01:32,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 15:01:32,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 15:01:32,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-21 15:01:32,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 15:01:32,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 15:01:32,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 15:01:32,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 15:01:32,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 15:01:32,591 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-21 15:01:32,591 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-21 15:01:32,591 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_open [2022-07-21 15:01:32,591 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_open [2022-07-21 15:01:32,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-21 15:01:32,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-21 15:01:32,591 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-21 15:01:32,591 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-21 15:01:32,591 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read [2022-07-21 15:01:32,591 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read [2022-07-21 15:01:32,591 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-21 15:01:32,592 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-21 15:01:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-21 15:01:32,592 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-21 15:01:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2022-07-21 15:01:32,592 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2022-07-21 15:01:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-21 15:01:32,592 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-21 15:01:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 15:01:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 15:01:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-21 15:01:32,592 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-21 15:01:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-07-21 15:01:32,592 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-07-21 15:01:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-21 15:01:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-21 15:01:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-21 15:01:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 15:01:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 15:01:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_init_dm910x [2022-07-21 15:01:32,593 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_init_dm910x [2022-07-21 15:01:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-21 15:01:32,593 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-21 15:01:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-21 15:01:32,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-21 15:01:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-07-21 15:01:32,593 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-07-21 15:01:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-21 15:01:32,593 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-21 15:01:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2022-07-21 15:01:32,593 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2022-07-21 15:01:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-21 15:01:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-21 15:01:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-21 15:01:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-21 15:01:32,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 15:01:32,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 15:01:32,594 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2022-07-21 15:01:32,594 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2022-07-21 15:01:32,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_dmfe_cleanup_module_14_2 [2022-07-21 15:01:32,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_dmfe_cleanup_module_14_2 [2022-07-21 15:01:32,594 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2022-07-21 15:01:32,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2022-07-21 15:01:32,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-21 15:01:32,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-21 15:01:32,594 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-07-21 15:01:32,594 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-07-21 15:01:32,594 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-21 15:01:32,594 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-21 15:01:32,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-21 15:01:32,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-21 15:01:33,311 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 15:01:33,314 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 15:01:35,677 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 15:02:16,072 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-21 15:02:16,110 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 15:02:16,125 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 15:02:16,126 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 15:02:16,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:02:16 BoogieIcfgContainer [2022-07-21 15:02:16,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 15:02:16,131 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 15:02:16,131 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 15:02:16,134 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 15:02:16,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 03:01:28" (1/3) ... [2022-07-21 15:02:16,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ae39826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:02:16, skipping insertion in model container [2022-07-21 15:02:16,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:01:31" (2/3) ... [2022-07-21 15:02:16,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ae39826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:02:16, skipping insertion in model container [2022-07-21 15:02:16,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:02:16" (3/3) ... [2022-07-21 15:02:16,136 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i [2022-07-21 15:02:16,148 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 15:02:16,149 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-21 15:02:16,248 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 15:02:16,255 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@30c15f7d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6c19bfe2 [2022-07-21 15:02:16,255 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-21 15:02:16,266 INFO L276 IsEmpty]: Start isEmpty. Operand has 1711 states, 1206 states have (on average 1.306799336650083) internal successors, (1576), 1229 states have internal predecessors, (1576), 420 states have call successors, (420), 83 states have call predecessors, (420), 82 states have return successors, (414), 405 states have call predecessors, (414), 414 states have call successors, (414) [2022-07-21 15:02:16,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-21 15:02:16,292 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:02:16,293 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:02:16,293 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:02:16,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:02:16,298 INFO L85 PathProgramCache]: Analyzing trace with hash 355979356, now seen corresponding path program 1 times [2022-07-21 15:02:16,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:02:16,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1175709447] [2022-07-21 15:02:16,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:02:16,313 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:02:16,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:02:16,319 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 15:02:16,328 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 15:02:17,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:02:17,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 1113 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:02:17,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:02:17,509 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-21 15:02:17,509 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:02:17,510 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:02:17,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1175709447] [2022-07-21 15:02:17,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1175709447] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:02:17,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:02:17,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:02:17,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338497791] [2022-07-21 15:02:17,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:02:17,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:02:17,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:02:17,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:02:17,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:02:17,541 INFO L87 Difference]: Start difference. First operand has 1711 states, 1206 states have (on average 1.306799336650083) internal successors, (1576), 1229 states have internal predecessors, (1576), 420 states have call successors, (420), 83 states have call predecessors, (420), 82 states have return successors, (414), 405 states have call predecessors, (414), 414 states have call successors, (414) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-21 15:02:18,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:02:18,112 INFO L93 Difference]: Finished difference Result 4978 states and 7117 transitions. [2022-07-21 15:02:18,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:02:18,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 116 [2022-07-21 15:02:18,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:02:18,159 INFO L225 Difference]: With dead ends: 4978 [2022-07-21 15:02:18,159 INFO L226 Difference]: Without dead ends: 3278 [2022-07-21 15:02:18,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 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 15:02:18,185 INFO L413 NwaCegarLoop]: 2785 mSDtfsCounter, 2266 mSDsluCounter, 2317 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2266 SdHoareTripleChecker+Valid, 5102 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 15:02:18,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2266 Valid, 5102 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 15:02:18,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3278 states. [2022-07-21 15:02:18,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3278 to 3274. [2022-07-21 15:02:18,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3274 states, 2324 states have (on average 1.299053356282272) internal successors, (3019), 2369 states have internal predecessors, (3019), 787 states have call successors, (787), 161 states have call predecessors, (787), 160 states have return successors, (783), 765 states have call predecessors, (783), 783 states have call successors, (783) [2022-07-21 15:02:18,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3274 states to 3274 states and 4589 transitions. [2022-07-21 15:02:18,449 INFO L78 Accepts]: Start accepts. Automaton has 3274 states and 4589 transitions. Word has length 116 [2022-07-21 15:02:18,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:02:18,450 INFO L495 AbstractCegarLoop]: Abstraction has 3274 states and 4589 transitions. [2022-07-21 15:02:18,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-21 15:02:18,451 INFO L276 IsEmpty]: Start isEmpty. Operand 3274 states and 4589 transitions. [2022-07-21 15:02:18,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-21 15:02:18,455 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:02:18,455 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:02:18,487 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 15:02:18,675 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 15:02:18,676 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:02:18,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:02:18,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1373213958, now seen corresponding path program 1 times [2022-07-21 15:02:18,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:02:18,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1381525737] [2022-07-21 15:02:18,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:02:18,679 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:02:18,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:02:18,680 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 15:02:18,682 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 15:02:19,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:02:19,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 1161 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:02:19,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:02:19,775 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-21 15:02:19,775 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:02:19,775 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:02:19,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1381525737] [2022-07-21 15:02:19,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1381525737] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:02:19,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:02:19,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:02:19,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679121182] [2022-07-21 15:02:19,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:02:19,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:02:19,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:02:19,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:02:19,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:02:19,778 INFO L87 Difference]: Start difference. First operand 3274 states and 4589 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-21 15:02:20,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:02:20,227 INFO L93 Difference]: Finished difference Result 9688 states and 13597 transitions. [2022-07-21 15:02:20,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:02:20,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 122 [2022-07-21 15:02:20,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:02:20,283 INFO L225 Difference]: With dead ends: 9688 [2022-07-21 15:02:20,283 INFO L226 Difference]: Without dead ends: 6435 [2022-07-21 15:02:20,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 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 15:02:20,305 INFO L413 NwaCegarLoop]: 2787 mSDtfsCounter, 2316 mSDsluCounter, 2331 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2316 SdHoareTripleChecker+Valid, 5118 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 15:02:20,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2316 Valid, 5118 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 15:02:20,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6435 states. [2022-07-21 15:02:20,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6435 to 6405. [2022-07-21 15:02:20,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6405 states, 4563 states have (on average 1.301775147928994) internal successors, (5940), 4657 states have internal predecessors, (5940), 1522 states have call successors, (1522), 320 states have call predecessors, (1522), 317 states have return successors, (1528), 1471 states have call predecessors, (1528), 1518 states have call successors, (1528) [2022-07-21 15:02:20,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6405 states to 6405 states and 8990 transitions. [2022-07-21 15:02:20,569 INFO L78 Accepts]: Start accepts. Automaton has 6405 states and 8990 transitions. Word has length 122 [2022-07-21 15:02:20,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:02:20,569 INFO L495 AbstractCegarLoop]: Abstraction has 6405 states and 8990 transitions. [2022-07-21 15:02:20,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-21 15:02:20,570 INFO L276 IsEmpty]: Start isEmpty. Operand 6405 states and 8990 transitions. [2022-07-21 15:02:20,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-21 15:02:20,577 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:02:20,577 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:02:20,613 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 15:02:20,795 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 15:02:20,795 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:02:20,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:02:20,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1237945319, now seen corresponding path program 1 times [2022-07-21 15:02:20,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:02:20,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [992591384] [2022-07-21 15:02:20,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:02:20,798 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:02:20,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:02:20,804 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 15:02:20,806 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 15:02:21,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:02:21,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:02:21,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:02:21,980 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-21 15:02:21,980 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:02:21,980 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:02:21,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [992591384] [2022-07-21 15:02:21,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [992591384] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:02:21,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:02:21,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:02:21,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944038027] [2022-07-21 15:02:21,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:02:21,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:02:21,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:02:21,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:02:21,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:02:21,982 INFO L87 Difference]: Start difference. First operand 6405 states and 8990 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-21 15:02:22,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:02:22,460 INFO L93 Difference]: Finished difference Result 18231 states and 25526 transitions. [2022-07-21 15:02:22,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:02:22,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 122 [2022-07-21 15:02:22,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:02:22,537 INFO L225 Difference]: With dead ends: 18231 [2022-07-21 15:02:22,540 INFO L226 Difference]: Without dead ends: 11847 [2022-07-21 15:02:22,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 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 15:02:22,634 INFO L413 NwaCegarLoop]: 2854 mSDtfsCounter, 2029 mSDsluCounter, 2320 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2029 SdHoareTripleChecker+Valid, 5174 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 15:02:22,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2029 Valid, 5174 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 15:02:22,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11847 states. [2022-07-21 15:02:23,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11847 to 11813. [2022-07-21 15:02:23,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11813 states, 8415 states have (on average 1.2981580510992277) internal successors, (10924), 8597 states have internal predecessors, (10924), 2784 states have call successors, (2784), 618 states have call predecessors, (2784), 611 states have return successors, (2806), 2681 states have call predecessors, (2806), 2780 states have call successors, (2806) [2022-07-21 15:02:23,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11813 states to 11813 states and 16514 transitions. [2022-07-21 15:02:23,214 INFO L78 Accepts]: Start accepts. Automaton has 11813 states and 16514 transitions. Word has length 122 [2022-07-21 15:02:23,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:02:23,216 INFO L495 AbstractCegarLoop]: Abstraction has 11813 states and 16514 transitions. [2022-07-21 15:02:23,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-21 15:02:23,217 INFO L276 IsEmpty]: Start isEmpty. Operand 11813 states and 16514 transitions. [2022-07-21 15:02:23,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-07-21 15:02:23,220 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:02:23,220 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:02:23,252 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 15:02:23,439 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 15:02:23,440 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:02:23,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:02:23,440 INFO L85 PathProgramCache]: Analyzing trace with hash -155362643, now seen corresponding path program 1 times [2022-07-21 15:02:23,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:02:23,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2106610103] [2022-07-21 15:02:23,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:02:23,442 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:02:23,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:02:23,445 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 15:02:23,447 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 15:02:24,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:02:24,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 1158 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:02:24,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:02:24,424 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-21 15:02:24,424 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:02:24,424 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:02:24,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2106610103] [2022-07-21 15:02:24,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2106610103] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:02:24,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:02:24,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:02:24,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746811511] [2022-07-21 15:02:24,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:02:24,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:02:24,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:02:24,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:02:24,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:02:24,426 INFO L87 Difference]: Start difference. First operand 11813 states and 16514 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-21 15:02:25,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:02:25,463 INFO L93 Difference]: Finished difference Result 34375 states and 48048 transitions. [2022-07-21 15:02:25,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:02:25,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 128 [2022-07-21 15:02:25,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:02:25,603 INFO L225 Difference]: With dead ends: 34375 [2022-07-21 15:02:25,603 INFO L226 Difference]: Without dead ends: 22583 [2022-07-21 15:02:25,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 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 15:02:25,671 INFO L413 NwaCegarLoop]: 2767 mSDtfsCounter, 2161 mSDsluCounter, 2317 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2161 SdHoareTripleChecker+Valid, 5084 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 15:02:25,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2161 Valid, 5084 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 15:02:25,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22583 states. [2022-07-21 15:02:26,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22583 to 22547. [2022-07-21 15:02:26,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22547 states, 16023 states have (on average 1.2976346501903513) internal successors, (20792), 16371 states have internal predecessors, (20792), 5316 states have call successors, (5316), 1218 states have call predecessors, (5316), 1205 states have return successors, (5370), 5101 states have call predecessors, (5370), 5312 states have call successors, (5370) [2022-07-21 15:02:26,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22547 states to 22547 states and 31478 transitions. [2022-07-21 15:02:26,775 INFO L78 Accepts]: Start accepts. Automaton has 22547 states and 31478 transitions. Word has length 128 [2022-07-21 15:02:26,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:02:26,777 INFO L495 AbstractCegarLoop]: Abstraction has 22547 states and 31478 transitions. [2022-07-21 15:02:26,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-21 15:02:26,777 INFO L276 IsEmpty]: Start isEmpty. Operand 22547 states and 31478 transitions. [2022-07-21 15:02:26,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-07-21 15:02:26,780 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:02:26,780 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:02:26,814 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 15:02:26,999 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 15:02:26,999 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:02:27,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:02:27,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1030222312, now seen corresponding path program 1 times [2022-07-21 15:02:27,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:02:27,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1064173290] [2022-07-21 15:02:27,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:02:27,002 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:02:27,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:02:27,004 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 15:02:27,039 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 15:02:28,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:02:28,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 1192 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:02:28,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:02:28,284 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-21 15:02:28,284 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:02:28,284 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:02:28,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1064173290] [2022-07-21 15:02:28,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1064173290] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:02:28,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:02:28,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:02:28,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876840208] [2022-07-21 15:02:28,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:02:28,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:02:28,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:02:28,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:02:28,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:02:28,286 INFO L87 Difference]: Start difference. First operand 22547 states and 31478 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-21 15:02:29,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:02:29,928 INFO L93 Difference]: Finished difference Result 41048 states and 57339 transitions. [2022-07-21 15:02:29,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:02:29,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 126 [2022-07-21 15:02:29,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:02:30,053 INFO L225 Difference]: With dead ends: 41048 [2022-07-21 15:02:30,053 INFO L226 Difference]: Without dead ends: 18522 [2022-07-21 15:02:30,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 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 15:02:30,150 INFO L413 NwaCegarLoop]: 3341 mSDtfsCounter, 1654 mSDsluCounter, 2317 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1654 SdHoareTripleChecker+Valid, 5658 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 15:02:30,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1654 Valid, 5658 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 15:02:30,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18522 states. [2022-07-21 15:02:30,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18522 to 18482. [2022-07-21 15:02:30,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18482 states, 13297 states have (on average 1.3028502669775137) internal successors, (17324), 13590 states have internal predecessors, (17324), 4166 states have call successors, (4166), 1031 states have call predecessors, (4166), 1016 states have return successors, (4191), 3974 states have call predecessors, (4191), 4162 states have call successors, (4191) [2022-07-21 15:02:31,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18482 states to 18482 states and 25681 transitions. [2022-07-21 15:02:31,050 INFO L78 Accepts]: Start accepts. Automaton has 18482 states and 25681 transitions. Word has length 126 [2022-07-21 15:02:31,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:02:31,051 INFO L495 AbstractCegarLoop]: Abstraction has 18482 states and 25681 transitions. [2022-07-21 15:02:31,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-21 15:02:31,052 INFO L276 IsEmpty]: Start isEmpty. Operand 18482 states and 25681 transitions. [2022-07-21 15:02:31,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-07-21 15:02:31,053 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:02:31,054 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:02:31,091 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 15:02:31,274 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 15:02:31,275 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:02:31,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:02:31,275 INFO L85 PathProgramCache]: Analyzing trace with hash 982818423, now seen corresponding path program 1 times [2022-07-21 15:02:31,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:02:31,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1143094835] [2022-07-21 15:02:31,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:02:31,277 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:02:31,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:02:31,280 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 15:02:31,282 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 15:02:32,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:02:32,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 1189 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:02:32,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:02:32,521 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-21 15:02:32,521 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:02:32,522 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:02:32,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1143094835] [2022-07-21 15:02:32,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1143094835] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:02:32,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:02:32,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:02:32,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650246957] [2022-07-21 15:02:32,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:02:32,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:02:32,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:02:32,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:02:32,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:02:32,523 INFO L87 Difference]: Start difference. First operand 18482 states and 25681 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-21 15:02:33,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:02:33,838 INFO L93 Difference]: Finished difference Result 53720 states and 74704 transitions. [2022-07-21 15:02:33,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:02:33,839 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 145 [2022-07-21 15:02:33,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:02:34,048 INFO L225 Difference]: With dead ends: 53720 [2022-07-21 15:02:34,048 INFO L226 Difference]: Without dead ends: 35259 [2022-07-21 15:02:34,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 143 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 15:02:34,133 INFO L413 NwaCegarLoop]: 3145 mSDtfsCounter, 2327 mSDsluCounter, 2368 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2327 SdHoareTripleChecker+Valid, 5513 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 15:02:34,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2327 Valid, 5513 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 15:02:34,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35259 states. [2022-07-21 15:02:35,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35259 to 35201. [2022-07-21 15:02:35,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35201 states, 25292 states have (on average 1.3030997944013918) internal successors, (32958), 25884 states have internal predecessors, (32958), 7961 states have call successors, (7961), 1974 states have call predecessors, (7961), 1945 states have return successors, (8015), 7562 states have call predecessors, (8015), 7957 states have call successors, (8015) [2022-07-21 15:02:35,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35201 states to 35201 states and 48934 transitions. [2022-07-21 15:02:35,768 INFO L78 Accepts]: Start accepts. Automaton has 35201 states and 48934 transitions. Word has length 145 [2022-07-21 15:02:35,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:02:35,769 INFO L495 AbstractCegarLoop]: Abstraction has 35201 states and 48934 transitions. [2022-07-21 15:02:35,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-21 15:02:35,770 INFO L276 IsEmpty]: Start isEmpty. Operand 35201 states and 48934 transitions. [2022-07-21 15:02:35,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-21 15:02:35,773 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:02:35,774 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:02:35,811 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 15:02:35,987 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 15:02:35,988 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:02:35,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:02:35,988 INFO L85 PathProgramCache]: Analyzing trace with hash -361805188, now seen corresponding path program 1 times [2022-07-21 15:02:35,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:02:35,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1861270828] [2022-07-21 15:02:35,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:02:35,990 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:02:35,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:02:35,992 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 15:02:35,994 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 15:02:37,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:02:37,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:02:37,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:02:37,911 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-21 15:02:37,912 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:02:37,912 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:02:37,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1861270828] [2022-07-21 15:02:37,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1861270828] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:02:37,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:02:37,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 15:02:37,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391253299] [2022-07-21 15:02:37,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:02:37,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:02:37,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:02:37,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:02:37,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:02:37,914 INFO L87 Difference]: Start difference. First operand 35201 states and 48934 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 15:02:39,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:02:39,923 INFO L93 Difference]: Finished difference Result 105449 states and 148202 transitions. [2022-07-21 15:02:39,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:02:39,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 183 [2022-07-21 15:02:39,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:02:40,532 INFO L225 Difference]: With dead ends: 105449 [2022-07-21 15:02:40,533 INFO L226 Difference]: Without dead ends: 70325 [2022-07-21 15:02:40,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 181 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 15:02:40,723 INFO L413 NwaCegarLoop]: 4110 mSDtfsCounter, 2305 mSDsluCounter, 2296 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2305 SdHoareTripleChecker+Valid, 6406 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 15:02:40,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2305 Valid, 6406 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 15:02:40,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70325 states. [2022-07-21 15:02:43,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70325 to 70299. [2022-07-21 15:02:43,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70299 states, 50510 states have (on average 1.2914670362304494) internal successors, (65232), 51692 states have internal predecessors, (65232), 15897 states have call successors, (15897), 3946 states have call predecessors, (15897), 3889 states have return successors, (16623), 15100 states have call predecessors, (16623), 15893 states have call successors, (16623) [2022-07-21 15:02:43,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70299 states to 70299 states and 97752 transitions. [2022-07-21 15:02:43,778 INFO L78 Accepts]: Start accepts. Automaton has 70299 states and 97752 transitions. Word has length 183 [2022-07-21 15:02:43,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:02:43,779 INFO L495 AbstractCegarLoop]: Abstraction has 70299 states and 97752 transitions. [2022-07-21 15:02:43,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 15:02:43,779 INFO L276 IsEmpty]: Start isEmpty. Operand 70299 states and 97752 transitions. [2022-07-21 15:02:43,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-21 15:02:43,782 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:02:43,782 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:02:43,815 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 15:02:43,995 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 15:02:43,995 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:02:43,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:02:43,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1546652602, now seen corresponding path program 1 times [2022-07-21 15:02:43,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:02:43,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [547409503] [2022-07-21 15:02:43,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:02:43,997 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:02:43,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:02:44,000 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 15:02:44,002 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 15:02:45,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:02:45,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:02:45,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:02:45,868 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-21 15:02:45,868 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:02:45,868 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:02:45,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [547409503] [2022-07-21 15:02:45,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [547409503] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:02:45,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:02:45,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 15:02:45,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591616103] [2022-07-21 15:02:45,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:02:45,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:02:45,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:02:45,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:02:45,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:02:45,870 INFO L87 Difference]: Start difference. First operand 70299 states and 97752 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 15:02:47,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:02:47,481 INFO L93 Difference]: Finished difference Result 105423 states and 145991 transitions. [2022-07-21 15:02:47,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:02:47,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 183 [2022-07-21 15:02:47,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:02:47,690 INFO L225 Difference]: With dead ends: 105423 [2022-07-21 15:02:47,690 INFO L226 Difference]: Without dead ends: 35201 [2022-07-21 15:02:47,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 181 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 15:02:47,990 INFO L413 NwaCegarLoop]: 2352 mSDtfsCounter, 2297 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2297 SdHoareTripleChecker+Valid, 2352 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 15:02:47,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2297 Valid, 2352 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:02:48,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35201 states. [2022-07-21 15:02:49,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35201 to 35201. [2022-07-21 15:02:49,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35201 states, 25292 states have (on average 1.277953503083979) internal successors, (32322), 25884 states have internal predecessors, (32322), 7961 states have call successors, (7961), 1974 states have call predecessors, (7961), 1945 states have return successors, (8015), 7562 states have call predecessors, (8015), 7957 states have call successors, (8015) [2022-07-21 15:02:49,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35201 states to 35201 states and 48298 transitions. [2022-07-21 15:02:49,288 INFO L78 Accepts]: Start accepts. Automaton has 35201 states and 48298 transitions. Word has length 183 [2022-07-21 15:02:49,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:02:49,290 INFO L495 AbstractCegarLoop]: Abstraction has 35201 states and 48298 transitions. [2022-07-21 15:02:49,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 15:02:49,290 INFO L276 IsEmpty]: Start isEmpty. Operand 35201 states and 48298 transitions. [2022-07-21 15:02:49,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-21 15:02:49,292 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:02:49,292 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:02:49,326 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 15:02:49,507 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 15:02:49,507 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:02:49,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:02:49,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1054026428, now seen corresponding path program 1 times [2022-07-21 15:02:49,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:02:49,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [823573452] [2022-07-21 15:02:49,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:02:49,509 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:02:49,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:02:49,512 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 15:02:49,514 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 15:02:50,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:02:50,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 1254 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:02:50,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:02:51,373 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-21 15:02:51,374 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:02:51,374 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:02:51,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [823573452] [2022-07-21 15:02:51,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [823573452] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:02:51,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:02:51,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 15:02:51,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123328113] [2022-07-21 15:02:51,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:02:51,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:02:51,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:02:51,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:02:51,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:02:51,376 INFO L87 Difference]: Start difference. First operand 35201 states and 48298 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 15:02:52,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:02:52,633 INFO L93 Difference]: Finished difference Result 70325 states and 96505 transitions. [2022-07-21 15:02:52,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:02:52,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 183 [2022-07-21 15:02:52,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:02:52,764 INFO L225 Difference]: With dead ends: 70325 [2022-07-21 15:02:52,764 INFO L226 Difference]: Without dead ends: 35201 [2022-07-21 15:02:52,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 181 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 15:02:52,840 INFO L413 NwaCegarLoop]: 2351 mSDtfsCounter, 2295 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2295 SdHoareTripleChecker+Valid, 2351 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 15:02:52,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2295 Valid, 2351 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:02:52,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35201 states. [2022-07-21 15:02:53,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35201 to 35201. [2022-07-21 15:02:53,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35201 states, 25292 states have (on average 1.2766882808793294) internal successors, (32290), 25884 states have internal predecessors, (32290), 7961 states have call successors, (7961), 1974 states have call predecessors, (7961), 1945 states have return successors, (8015), 7562 states have call predecessors, (8015), 7957 states have call successors, (8015) [2022-07-21 15:02:53,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35201 states to 35201 states and 48266 transitions. [2022-07-21 15:02:53,964 INFO L78 Accepts]: Start accepts. Automaton has 35201 states and 48266 transitions. Word has length 183 [2022-07-21 15:02:53,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:02:53,965 INFO L495 AbstractCegarLoop]: Abstraction has 35201 states and 48266 transitions. [2022-07-21 15:02:53,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 15:02:53,965 INFO L276 IsEmpty]: Start isEmpty. Operand 35201 states and 48266 transitions. [2022-07-21 15:02:53,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-21 15:02:53,967 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:02:53,967 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:02:54,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-21 15:02:54,187 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 15:02:54,187 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:02:54,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:02:54,188 INFO L85 PathProgramCache]: Analyzing trace with hash 2007966586, now seen corresponding path program 1 times [2022-07-21 15:02:54,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:02:54,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1377279418] [2022-07-21 15:02:54,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:02:54,190 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:02:54,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:02:54,192 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 15:02:54,231 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 15:02:55,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:02:55,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 1253 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:02:55,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:02:56,002 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-21 15:02:56,003 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:02:56,003 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:02:56,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1377279418] [2022-07-21 15:02:56,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1377279418] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:02:56,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:02:56,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 15:02:56,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110038341] [2022-07-21 15:02:56,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:02:56,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:02:56,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:02:56,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:02:56,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:02:56,005 INFO L87 Difference]: Start difference. First operand 35201 states and 48266 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 15:02:57,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:02:57,163 INFO L93 Difference]: Finished difference Result 70293 states and 96409 transitions. [2022-07-21 15:02:57,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:02:57,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 183 [2022-07-21 15:02:57,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:02:57,310 INFO L225 Difference]: With dead ends: 70293 [2022-07-21 15:02:57,310 INFO L226 Difference]: Without dead ends: 35169 [2022-07-21 15:02:57,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 181 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 15:02:57,415 INFO L413 NwaCegarLoop]: 2341 mSDtfsCounter, 2288 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2288 SdHoareTripleChecker+Valid, 2341 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 15:02:57,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2288 Valid, 2341 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:02:57,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35169 states. [2022-07-21 15:02:58,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35169 to 35169. [2022-07-21 15:02:58,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35169 states, 25260 states have (on average 1.2707046714172605) internal successors, (32098), 25852 states have internal predecessors, (32098), 7961 states have call successors, (7961), 1974 states have call predecessors, (7961), 1945 states have return successors, (8015), 7562 states have call predecessors, (8015), 7957 states have call successors, (8015) [2022-07-21 15:02:58,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35169 states to 35169 states and 48074 transitions. [2022-07-21 15:02:58,697 INFO L78 Accepts]: Start accepts. Automaton has 35169 states and 48074 transitions. Word has length 183 [2022-07-21 15:02:58,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:02:58,698 INFO L495 AbstractCegarLoop]: Abstraction has 35169 states and 48074 transitions. [2022-07-21 15:02:58,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 15:02:58,699 INFO L276 IsEmpty]: Start isEmpty. Operand 35169 states and 48074 transitions. [2022-07-21 15:02:58,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-21 15:02:58,700 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:02:58,701 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:02:58,737 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 15:02:58,929 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 15:02:58,929 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:02:58,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:02:58,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1700673724, now seen corresponding path program 1 times [2022-07-21 15:02:58,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:02:58,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2057865395] [2022-07-21 15:02:58,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:02:58,931 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:02:58,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:02:58,932 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 15:02:58,934 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 15:02:59,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:02:59,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 1257 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:02:59,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:03:00,544 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-21 15:03:00,544 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:03:00,545 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:03:00,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2057865395] [2022-07-21 15:03:00,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2057865395] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:03:00,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:03:00,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 15:03:00,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904607960] [2022-07-21 15:03:00,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:03:00,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:03:00,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:03:00,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:03:00,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:03:00,546 INFO L87 Difference]: Start difference. First operand 35169 states and 48074 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 15:03:01,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:03:01,692 INFO L93 Difference]: Finished difference Result 69973 states and 95753 transitions. [2022-07-21 15:03:01,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:03:01,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 187 [2022-07-21 15:03:01,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:03:01,819 INFO L225 Difference]: With dead ends: 69973 [2022-07-21 15:03:01,819 INFO L226 Difference]: Without dead ends: 34881 [2022-07-21 15:03:01,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 185 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 15:03:01,927 INFO L413 NwaCegarLoop]: 2322 mSDtfsCounter, 2261 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2261 SdHoareTripleChecker+Valid, 2322 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 15:03:01,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2261 Valid, 2322 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:03:01,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34881 states. [2022-07-21 15:03:02,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34881 to 34881. [2022-07-21 15:03:03,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34881 states, 24972 states have (on average 1.2648566394361684) internal successors, (31586), 25564 states have internal predecessors, (31586), 7961 states have call successors, (7961), 1974 states have call predecessors, (7961), 1945 states have return successors, (8015), 7562 states have call predecessors, (8015), 7957 states have call successors, (8015) [2022-07-21 15:03:03,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34881 states to 34881 states and 47562 transitions. [2022-07-21 15:03:03,310 INFO L78 Accepts]: Start accepts. Automaton has 34881 states and 47562 transitions. Word has length 187 [2022-07-21 15:03:03,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:03:03,311 INFO L495 AbstractCegarLoop]: Abstraction has 34881 states and 47562 transitions. [2022-07-21 15:03:03,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 15:03:03,311 INFO L276 IsEmpty]: Start isEmpty. Operand 34881 states and 47562 transitions. [2022-07-21 15:03:03,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-21 15:03:03,313 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:03:03,313 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:03:03,349 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 15:03:03,527 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 15:03:03,527 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:03:03,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:03:03,528 INFO L85 PathProgramCache]: Analyzing trace with hash 908113734, now seen corresponding path program 1 times [2022-07-21 15:03:03,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:03:03,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [166785272] [2022-07-21 15:03:03,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:03:03,529 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:03:03,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:03:03,530 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 15:03:03,531 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 15:03:04,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:03:04,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 1256 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:03:04,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:03:05,181 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-21 15:03:05,182 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:03:05,182 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:03:05,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [166785272] [2022-07-21 15:03:05,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [166785272] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:03:05,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:03:05,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 15:03:05,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294931860] [2022-07-21 15:03:05,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:03:05,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:03:05,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:03:05,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:03:05,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:03:05,184 INFO L87 Difference]: Start difference. First operand 34881 states and 47562 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 15:03:06,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:03:06,205 INFO L93 Difference]: Finished difference Result 69685 states and 95161 transitions. [2022-07-21 15:03:06,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:03:06,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 187 [2022-07-21 15:03:06,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:03:06,342 INFO L225 Difference]: With dead ends: 69685 [2022-07-21 15:03:06,342 INFO L226 Difference]: Without dead ends: 34881 [2022-07-21 15:03:06,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 185 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 15:03:06,451 INFO L413 NwaCegarLoop]: 2321 mSDtfsCounter, 2258 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2258 SdHoareTripleChecker+Valid, 2321 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 15:03:06,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2258 Valid, 2321 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:03:06,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34881 states. [2022-07-21 15:03:07,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34881 to 34881. [2022-07-21 15:03:07,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34881 states, 24972 states have (on average 1.262614127823162) internal successors, (31530), 25564 states have internal predecessors, (31530), 7961 states have call successors, (7961), 1974 states have call predecessors, (7961), 1945 states have return successors, (8015), 7562 states have call predecessors, (8015), 7957 states have call successors, (8015) [2022-07-21 15:03:07,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34881 states to 34881 states and 47506 transitions. [2022-07-21 15:03:07,970 INFO L78 Accepts]: Start accepts. Automaton has 34881 states and 47506 transitions. Word has length 187 [2022-07-21 15:03:07,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:03:07,970 INFO L495 AbstractCegarLoop]: Abstraction has 34881 states and 47506 transitions. [2022-07-21 15:03:07,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 15:03:07,970 INFO L276 IsEmpty]: Start isEmpty. Operand 34881 states and 47506 transitions. [2022-07-21 15:03:07,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-21 15:03:07,972 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:03:07,973 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:03:07,995 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 15:03:08,175 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 15:03:08,175 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:03:08,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:03:08,176 INFO L85 PathProgramCache]: Analyzing trace with hash 853720836, now seen corresponding path program 1 times [2022-07-21 15:03:08,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:03:08,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [505628839] [2022-07-21 15:03:08,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:03:08,177 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:03:08,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:03:08,178 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 15:03:08,180 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 15:03:09,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:03:09,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:03:09,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:03:09,877 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-21 15:03:09,877 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:03:09,877 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:03:09,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [505628839] [2022-07-21 15:03:09,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [505628839] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:03:09,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:03:09,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 15:03:09,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007843541] [2022-07-21 15:03:09,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:03:09,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:03:09,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:03:09,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:03:09,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:03:09,879 INFO L87 Difference]: Start difference. First operand 34881 states and 47506 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 15:03:11,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:03:11,115 INFO L93 Difference]: Finished difference Result 69637 states and 95001 transitions. [2022-07-21 15:03:11,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:03:11,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 187 [2022-07-21 15:03:11,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:03:11,237 INFO L225 Difference]: With dead ends: 69637 [2022-07-21 15:03:11,237 INFO L226 Difference]: Without dead ends: 34833 [2022-07-21 15:03:11,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 185 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 15:03:11,337 INFO L413 NwaCegarLoop]: 2317 mSDtfsCounter, 2253 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2253 SdHoareTripleChecker+Valid, 2317 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 15:03:11,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2253 Valid, 2317 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 15:03:11,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34833 states. [2022-07-21 15:03:12,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34833 to 34833. [2022-07-21 15:03:12,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34833 states, 24924 states have (on average 1.2608730540844166) internal successors, (31426), 25516 states have internal predecessors, (31426), 7961 states have call successors, (7961), 1974 states have call predecessors, (7961), 1945 states have return successors, (8015), 7562 states have call predecessors, (8015), 7957 states have call successors, (8015) [2022-07-21 15:03:12,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34833 states to 34833 states and 47402 transitions. [2022-07-21 15:03:12,842 INFO L78 Accepts]: Start accepts. Automaton has 34833 states and 47402 transitions. Word has length 187 [2022-07-21 15:03:12,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:03:12,842 INFO L495 AbstractCegarLoop]: Abstraction has 34833 states and 47402 transitions. [2022-07-21 15:03:12,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 15:03:12,842 INFO L276 IsEmpty]: Start isEmpty. Operand 34833 states and 47402 transitions. [2022-07-21 15:03:12,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-21 15:03:12,844 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:03:12,844 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:03:12,868 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 15:03:13,044 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 15:03:13,045 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:03:13,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:03:13,045 INFO L85 PathProgramCache]: Analyzing trace with hash 436324230, now seen corresponding path program 1 times [2022-07-21 15:03:13,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:03:13,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1069671873] [2022-07-21 15:03:13,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:03:13,046 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:03:13,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:03:13,047 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 15:03:13,048 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 15:03:13,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:03:13,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 1254 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:03:13,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:03:14,629 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-21 15:03:14,630 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:03:14,630 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:03:14,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1069671873] [2022-07-21 15:03:14,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1069671873] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:03:14,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:03:14,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 15:03:14,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930818364] [2022-07-21 15:03:14,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:03:14,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:03:14,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:03:14,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:03:14,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:03:14,632 INFO L87 Difference]: Start difference. First operand 34833 states and 47402 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 15:03:16,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:03:16,841 INFO L93 Difference]: Finished difference Result 103505 states and 141056 transitions. [2022-07-21 15:03:16,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:03:16,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 187 [2022-07-21 15:03:16,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:03:17,113 INFO L225 Difference]: With dead ends: 103505 [2022-07-21 15:03:17,113 INFO L226 Difference]: Without dead ends: 68749 [2022-07-21 15:03:17,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 185 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 15:03:17,244 INFO L413 NwaCegarLoop]: 2720 mSDtfsCounter, 2196 mSDsluCounter, 2285 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2196 SdHoareTripleChecker+Valid, 5005 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 15:03:17,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2196 Valid, 5005 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 15:03:17,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68749 states. [2022-07-21 15:03:19,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68749 to 68723. [2022-07-21 15:03:19,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68723 states, 49222 states have (on average 1.2604932753646743) internal successors, (62044), 50404 states have internal predecessors, (62044), 15609 states have call successors, (15609), 3946 states have call predecessors, (15609), 3889 states have return successors, (15849), 14812 states have call predecessors, (15849), 15605 states have call successors, (15849) [2022-07-21 15:03:19,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68723 states to 68723 states and 93502 transitions. [2022-07-21 15:03:19,834 INFO L78 Accepts]: Start accepts. Automaton has 68723 states and 93502 transitions. Word has length 187 [2022-07-21 15:03:19,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:03:19,834 INFO L495 AbstractCegarLoop]: Abstraction has 68723 states and 93502 transitions. [2022-07-21 15:03:19,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 15:03:19,834 INFO L276 IsEmpty]: Start isEmpty. Operand 68723 states and 93502 transitions. [2022-07-21 15:03:19,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-21 15:03:19,835 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:03:19,836 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:03:19,858 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 15:03:20,036 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 15:03:20,036 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:03:20,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:03:20,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1115596484, now seen corresponding path program 1 times [2022-07-21 15:03:20,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:03:20,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1895947522] [2022-07-21 15:03:20,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:03:20,038 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:03:20,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:03:20,040 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 15:03:20,041 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 15:03:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:03:20,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 1253 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:03:20,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:03:21,046 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-07-21 15:03:21,046 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:03:21,046 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:03:21,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1895947522] [2022-07-21 15:03:21,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1895947522] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:03:21,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:03:21,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:03:21,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138380217] [2022-07-21 15:03:21,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:03:21,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:03:21,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:03:21,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:03:21,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:03:21,048 INFO L87 Difference]: Start difference. First operand 68723 states and 93502 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18)