./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 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-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-?-6c24879 [2022-07-12 16:27:42,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 16:27:42,734 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 16:27:42,776 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 16:27:42,778 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 16:27:42,780 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 16:27:42,781 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 16:27:42,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 16:27:42,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 16:27:42,790 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 16:27:42,791 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 16:27:42,793 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 16:27:42,794 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 16:27:42,799 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 16:27:42,800 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 16:27:42,802 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 16:27:42,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 16:27:42,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 16:27:42,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 16:27:42,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 16:27:42,812 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 16:27:42,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 16:27:42,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 16:27:42,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 16:27:42,818 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 16:27:42,821 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 16:27:42,821 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 16:27:42,821 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 16:27:42,822 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 16:27:42,822 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 16:27:42,823 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 16:27:42,823 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 16:27:42,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 16:27:42,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 16:27:42,826 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 16:27:42,827 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 16:27:42,827 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 16:27:42,828 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 16:27:42,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 16:27:42,828 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 16:27:42,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 16:27:42,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 16:27:42,831 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 16:27:42,862 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 16:27:42,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 16:27:42,869 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 16:27:42,869 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 16:27:42,870 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 16:27:42,870 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 16:27:42,871 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 16:27:42,871 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 16:27:42,871 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 16:27:42,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 16:27:42,872 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 16:27:42,872 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 16:27:42,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 16:27:42,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 16:27:42,873 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 16:27:42,873 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 16:27:42,873 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 16:27:42,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 16:27:42,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 16:27:42,874 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 16:27:42,874 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 16:27:42,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 16:27:42,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 16:27:42,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 16:27:42,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 16:27:42,875 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 16:27:42,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 16:27:42,876 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 16:27:42,876 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 16:27:42,876 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 16:27:42,876 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ee317e42bc2e06685ca0df819e5fc98feaca323581d52409851fe6eefd66a2a [2022-07-12 16:27:43,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 16:27:43,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 16:27:43,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 16:27:43,158 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 16:27:43,159 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 16:27:43,160 INFO L432 ainManager$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 [2022-07-12 16:27:43,215 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ff393a2b/0744d2314584456888e54fc0db72e50c/FLAG61c283ce8 [2022-07-12 16:27:43,981 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 16:27:43,982 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 [2022-07-12 16:27:44,029 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ff393a2b/0744d2314584456888e54fc0db72e50c/FLAG61c283ce8 [2022-07-12 16:27:44,231 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ff393a2b/0744d2314584456888e54fc0db72e50c [2022-07-12 16:27:44,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 16:27:44,235 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 16:27:44,236 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 16:27:44,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 16:27:44,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 16:27:44,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:27:44" (1/1) ... [2022-07-12 16:27:44,240 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fecb602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:27:44, skipping insertion in model container [2022-07-12 16:27:44,240 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:27:44" (1/1) ... [2022-07-12 16:27:44,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 16:27:44,384 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 16:27:46,395 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] [2022-07-12 16:27:46,398 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] [2022-07-12 16:27:46,404 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] [2022-07-12 16:27:46,404 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] [2022-07-12 16:27:46,432 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:27:46,474 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 16:27:46,608 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) [2022-07-12 16:27:46,613 INFO L158 Benchmark]: Toolchain (without parser) took 2377.56ms. Allocated memory was 107.0MB in the beginning and 176.2MB in the end (delta: 69.2MB). Free memory was 62.8MB in the beginning and 83.6MB in the end (delta: -20.8MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. [2022-07-12 16:27:46,614 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 107.0MB. Free memory is still 61.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 16:27:46,615 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2375.60ms. Allocated memory was 107.0MB in the beginning and 176.2MB in the end (delta: 69.2MB). Free memory was 62.8MB in the beginning and 83.6MB in the end (delta: -20.8MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. [2022-07-12 16:27:46,616 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 107.0MB. Free memory is still 61.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2375.60ms. Allocated memory was 107.0MB in the beginning and 176.2MB in the end (delta: 69.2MB). Free memory was 62.8MB in the beginning and 83.6MB in the end (delta: -20.8MB). Peak memory consumption was 45.8MB. 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-?-6c24879 [2022-07-12 16:27:48,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 16:27:48,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 16:27:48,324 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 16:27:48,325 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 16:27:48,326 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 16:27:48,329 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 16:27:48,332 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 16:27:48,334 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 16:27:48,338 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 16:27:48,338 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 16:27:48,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 16:27:48,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 16:27:48,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 16:27:48,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 16:27:48,348 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 16:27:48,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 16:27:48,350 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 16:27:48,351 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 16:27:48,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 16:27:48,357 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 16:27:48,358 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 16:27:48,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 16:27:48,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 16:27:48,362 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 16:27:48,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 16:27:48,369 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 16:27:48,369 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 16:27:48,370 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 16:27:48,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 16:27:48,371 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 16:27:48,371 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 16:27:48,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 16:27:48,373 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 16:27:48,374 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 16:27:48,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 16:27:48,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 16:27:48,376 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 16:27:48,376 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 16:27:48,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 16:27:48,377 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 16:27:48,378 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 16:27:48,383 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 16:27:48,412 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 16:27:48,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 16:27:48,413 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 16:27:48,413 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 16:27:48,414 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 16:27:48,414 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 16:27:48,415 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 16:27:48,415 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 16:27:48,415 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 16:27:48,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 16:27:48,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 16:27:48,425 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 16:27:48,426 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 16:27:48,426 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 16:27:48,426 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 16:27:48,426 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 16:27:48,426 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 16:27:48,427 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 16:27:48,427 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 16:27:48,427 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 16:27:48,427 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 16:27:48,427 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 16:27:48,428 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 16:27:48,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 16:27:48,428 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 16:27:48,428 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 16:27:48,428 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 16:27:48,429 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 16:27:48,429 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 16:27:48,429 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 16:27:48,429 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 16:27:48,430 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 16:27:48,430 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 16:27:48,430 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ee317e42bc2e06685ca0df819e5fc98feaca323581d52409851fe6eefd66a2a [2022-07-12 16:27:48,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 16:27:48,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 16:27:48,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 16:27:48,762 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 16:27:48,762 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 16:27:48,764 INFO L432 ainManager$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 [2022-07-12 16:27:48,816 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbab15dcd/d51a397ebdfa4118acc7b4adf7a013cc/FLAG1bc98925d [2022-07-12 16:27:49,624 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 16:27:49,625 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 [2022-07-12 16:27:49,665 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbab15dcd/d51a397ebdfa4118acc7b4adf7a013cc/FLAG1bc98925d [2022-07-12 16:27:50,163 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbab15dcd/d51a397ebdfa4118acc7b4adf7a013cc [2022-07-12 16:27:50,166 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 16:27:50,167 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 16:27:50,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 16:27:50,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 16:27:50,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 16:27:50,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:27:50" (1/1) ... [2022-07-12 16:27:50,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78e4795d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:27:50, skipping insertion in model container [2022-07-12 16:27:50,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:27:50" (1/1) ... [2022-07-12 16:27:50,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 16:27:50,292 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 16:27:52,299 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] [2022-07-12 16:27:52,301 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] [2022-07-12 16:27:52,302 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] [2022-07-12 16:27:52,303 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] [2022-07-12 16:27:52,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:27:52,365 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 16:27:52,416 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 16:27:52,693 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] [2022-07-12 16:27:52,694 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] [2022-07-12 16:27:52,694 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] [2022-07-12 16:27:52,694 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] [2022-07-12 16:27:52,699 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:27:52,722 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 16:27:52,973 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] [2022-07-12 16:27:52,973 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] [2022-07-12 16:27:52,974 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] [2022-07-12 16:27:52,974 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] [2022-07-12 16:27:52,983 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:27:53,280 INFO L208 MainTranslator]: Completed translation [2022-07-12 16:27:53,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:27:53 WrapperNode [2022-07-12 16:27:53,281 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 16:27:53,282 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 16:27:53,282 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 16:27:53,282 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 16:27:53,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:27:53" (1/1) ... [2022-07-12 16:27:53,379 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:27:53" (1/1) ... [2022-07-12 16:27:53,516 INFO L137 Inliner]: procedures = 436, calls = 1985, calls flagged for inlining = 201, calls inlined = 184, statements flattened = 4910 [2022-07-12 16:27:53,517 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 16:27:53,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 16:27:53,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 16:27:53,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 16:27:53,526 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:27:53" (1/1) ... [2022-07-12 16:27:53,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:27:53" (1/1) ... [2022-07-12 16:27:53,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:27:53" (1/1) ... [2022-07-12 16:27:53,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:27:53" (1/1) ... [2022-07-12 16:27:53,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:27:53" (1/1) ... [2022-07-12 16:27:53,763 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:27:53" (1/1) ... [2022-07-12 16:27:53,791 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:27:53" (1/1) ... [2022-07-12 16:27:53,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 16:27:53,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 16:27:53,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 16:27:53,822 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 16:27:53,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:27:53" (1/1) ... [2022-07-12 16:27:53,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 16:27:53,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 16:27:53,852 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 16:27:53,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 16:27:53,890 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-12 16:27:53,890 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-12 16:27:53,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 16:27:53,891 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 16:27:53,891 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-12 16:27:53,891 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-12 16:27:53,891 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_set_filter_mode [2022-07-12 16:27:53,891 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_set_filter_mode [2022-07-12 16:27:53,891 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-12 16:27:53,892 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-12 16:27:53,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 16:27:53,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 16:27:53,892 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_resume [2022-07-12 16:27:53,892 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_resume [2022-07-12 16:27:53,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-12 16:27:53,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-12 16:27:53,893 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-12 16:27:53,893 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-12 16:27:53,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_dmfe_board_info [2022-07-12 16:27:53,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_dmfe_board_info [2022-07-12 16:27:53,893 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-12 16:27:53,894 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-12 16:27:53,894 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-07-12 16:27:53,894 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-07-12 16:27:53,894 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-07-12 16:27:53,894 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-07-12 16:27:53,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2022-07-12 16:27:53,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2022-07-12 16:27:53,895 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-12 16:27:53,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-12 16:27:53,895 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-12 16:27:53,895 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-12 16:27:53,896 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_reuse_skb [2022-07-12 16:27:53,896 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_reuse_skb [2022-07-12 16:27:53,896 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2022-07-12 16:27:53,896 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2022-07-12 16:27:53,896 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-12 16:27:53,897 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-12 16:27:53,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-12 16:27:53,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-12 16:27:53,898 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-12 16:27:53,899 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-12 16:27:53,899 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-12 16:27:53,899 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-12 16:27:53,899 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-12 16:27:53,899 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-12 16:27:53,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-12 16:27:53,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-12 16:27:53,899 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write [2022-07-12 16:27:53,900 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write [2022-07-12 16:27:53,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 16:27:53,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 16:27:53,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 16:27:53,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-12 16:27:53,900 INFO L130 BoogieDeclarations]: Found specification of procedure poll_dmfe [2022-07-12 16:27:53,900 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_dmfe [2022-07-12 16:27:53,901 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-12 16:27:53,901 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-12 16:27:53,901 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 16:27:53,901 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 16:27:53,901 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-07-12 16:27:53,901 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-07-12 16:27:53,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-12 16:27:53,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-12 16:27:53,902 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_remove_one [2022-07-12 16:27:53,902 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_remove_one [2022-07-12 16:27:53,902 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write_1bit [2022-07-12 16:27:53,902 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write_1bit [2022-07-12 16:27:53,902 INFO L130 BoogieDeclarations]: Found specification of procedure dm9132_id_table [2022-07-12 16:27:53,902 INFO L138 BoogieDeclarations]: Found implementation of procedure dm9132_id_table [2022-07-12 16:27:53,902 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 16:27:53,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 16:27:53,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-12 16:27:53,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-12 16:27:53,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-12 16:27:53,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-12 16:27:53,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-12 16:27:53,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-12 16:27:53,904 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_interrupt [2022-07-12 16:27:53,904 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_interrupt [2022-07-12 16:27:53,904 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-12 16:27:53,904 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-12 16:27:53,904 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read_1bit [2022-07-12 16:27:53,904 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read_1bit [2022-07-12 16:27:53,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-12 16:27:53,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-12 16:27:53,905 INFO L130 BoogieDeclarations]: Found specification of procedure cal_CRC [2022-07-12 16:27:53,905 INFO L138 BoogieDeclarations]: Found implementation of procedure cal_CRC [2022-07-12 16:27:53,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 16:27:53,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-12 16:27:53,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-12 16:27:53,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-12 16:27:53,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-12 16:27:53,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 16:27:53,906 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2022-07-12 16:27:53,906 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2022-07-12 16:27:53,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-12 16:27:53,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-12 16:27:53,906 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 16:27:53,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 16:27:53,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 16:27:53,907 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-07-12 16:27:53,907 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-07-12 16:27:53,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-12 16:27:53,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-12 16:27:53,908 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 16:27:53,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 16:27:53,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-12 16:27:53,908 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-07-12 16:27:53,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-07-12 16:27:53,908 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_free_rxbuffer [2022-07-12 16:27:53,908 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_free_rxbuffer [2022-07-12 16:27:53,909 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-12 16:27:53,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-12 16:27:53,909 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 16:27:53,909 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 16:27:53,909 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-12 16:27:53,909 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-12 16:27:53,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-12 16:27:53,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-12 16:27:53,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-12 16:27:53,910 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_stop [2022-07-12 16:27:53,910 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_stop [2022-07-12 16:27:53,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 16:27:53,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 16:27:53,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 16:27:53,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 16:27:53,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 16:27:53,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 16:27:53,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-12 16:27:53,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 16:27:53,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 16:27:53,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 16:27:53,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-12 16:27:53,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-12 16:27:53,912 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-12 16:27:53,912 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-12 16:27:53,912 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_open [2022-07-12 16:27:53,912 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_open [2022-07-12 16:27:53,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-12 16:27:53,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-12 16:27:53,913 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-12 16:27:53,913 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-12 16:27:53,913 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read [2022-07-12 16:27:53,913 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read [2022-07-12 16:27:53,913 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-12 16:27:53,913 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-12 16:27:53,914 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-12 16:27:53,914 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-12 16:27:53,914 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2022-07-12 16:27:53,914 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2022-07-12 16:27:53,914 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-12 16:27:53,914 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-12 16:27:53,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 16:27:53,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 16:27:53,915 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-12 16:27:53,915 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-12 16:27:53,915 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-07-12 16:27:53,915 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-07-12 16:27:53,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 16:27:53,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 16:27:53,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 16:27:53,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 16:27:53,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 16:27:53,916 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_init_dm910x [2022-07-12 16:27:53,916 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_init_dm910x [2022-07-12 16:27:53,916 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-12 16:27:53,916 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-12 16:27:53,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-12 16:27:53,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-12 16:27:53,917 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-07-12 16:27:53,917 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-07-12 16:27:53,917 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-12 16:27:53,917 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-12 16:27:53,917 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2022-07-12 16:27:53,917 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2022-07-12 16:27:53,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-12 16:27:53,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-12 16:27:53,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 16:27:53,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-12 16:27:53,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 16:27:53,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 16:27:53,918 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2022-07-12 16:27:53,919 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2022-07-12 16:27:53,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_dmfe_cleanup_module_14_2 [2022-07-12 16:27:53,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_dmfe_cleanup_module_14_2 [2022-07-12 16:27:53,919 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2022-07-12 16:27:53,919 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2022-07-12 16:27:53,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-12 16:27:53,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-12 16:27:53,919 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-07-12 16:27:53,920 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-07-12 16:27:53,920 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-12 16:27:53,920 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-12 16:27:53,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-12 16:27:53,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-12 16:27:54,580 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 16:27:54,582 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 16:27:57,011 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 16:28:37,631 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-12 16:28:37,677 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 16:28:37,702 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 16:28:37,702 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 16:28:37,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 04:28:37 BoogieIcfgContainer [2022-07-12 16:28:37,706 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 16:28:37,708 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 16:28:37,708 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 16:28:37,711 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 16:28:37,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 04:27:50" (1/3) ... [2022-07-12 16:28:37,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b818afd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 04:28:37, skipping insertion in model container [2022-07-12 16:28:37,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:27:53" (2/3) ... [2022-07-12 16:28:37,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b818afd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 04:28:37, skipping insertion in model container [2022-07-12 16:28:37,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 04:28:37" (3/3) ... [2022-07-12 16:28:37,713 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i [2022-07-12 16:28:37,726 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 16:28:37,726 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-12 16:28:37,826 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 16:28:37,832 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@15de9d1f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4b533ddc [2022-07-12 16:28:37,833 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-12 16:28:37,843 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) [2022-07-12 16:28:37,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-12 16:28:37,865 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:28:37,866 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] [2022-07-12 16:28:37,866 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:28:37,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:28:37,871 INFO L85 PathProgramCache]: Analyzing trace with hash 355979356, now seen corresponding path program 1 times [2022-07-12 16:28:37,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:28:37,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1359627758] [2022-07-12 16:28:37,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:28:37,885 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:28:37,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:28:37,888 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:28:37,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 16:28:38,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:38,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 1113 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:28:38,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:28:39,074 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-12 16:28:39,074 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:28:39,075 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:28:39,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1359627758] [2022-07-12 16:28:39,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1359627758] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:28:39,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:28:39,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:28:39,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489930330] [2022-07-12 16:28:39,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:28:39,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:28:39,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:28:39,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:28:39,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:28:39,109 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) [2022-07-12 16:28:39,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:28:39,712 INFO L93 Difference]: Finished difference Result 4978 states and 7117 transitions. [2022-07-12 16:28:39,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:28:39,715 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 [2022-07-12 16:28:39,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:28:39,759 INFO L225 Difference]: With dead ends: 4978 [2022-07-12 16:28:39,760 INFO L226 Difference]: Without dead ends: 3278 [2022-07-12 16:28:39,779 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 [2022-07-12 16:28:39,787 INFO L413 NwaCegarLoop]: 2785 mSDtfsCounter, 2266 mSDsluCounter, 2317 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-07-12 16:28:39,788 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] [2022-07-12 16:28:39,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3278 states. [2022-07-12 16:28:39,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3278 to 3274. [2022-07-12 16:28:39,986 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) [2022-07-12 16:28:40,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3274 states to 3274 states and 4589 transitions. [2022-07-12 16:28:40,020 INFO L78 Accepts]: Start accepts. Automaton has 3274 states and 4589 transitions. Word has length 116 [2022-07-12 16:28:40,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:28:40,022 INFO L495 AbstractCegarLoop]: Abstraction has 3274 states and 4589 transitions. [2022-07-12 16:28:40,022 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) [2022-07-12 16:28:40,023 INFO L276 IsEmpty]: Start isEmpty. Operand 3274 states and 4589 transitions. [2022-07-12 16:28:40,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-12 16:28:40,028 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:28:40,028 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] [2022-07-12 16:28:40,062 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 16:28:40,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:28:40,229 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:28:40,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:28:40,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1373213958, now seen corresponding path program 1 times [2022-07-12 16:28:40,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:28:40,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1535477027] [2022-07-12 16:28:40,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:28:40,232 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:28:40,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:28:40,236 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:28:40,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 16:28:41,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:41,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 1161 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:28:41,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:28:41,365 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-12 16:28:41,365 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:28:41,366 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:28:41,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1535477027] [2022-07-12 16:28:41,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1535477027] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:28:41,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:28:41,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:28:41,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264572566] [2022-07-12 16:28:41,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:28:41,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:28:41,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:28:41,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:28:41,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:28:41,368 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) [2022-07-12 16:28:41,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:28:41,824 INFO L93 Difference]: Finished difference Result 9688 states and 13597 transitions. [2022-07-12 16:28:41,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:28:41,825 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 [2022-07-12 16:28:41,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:28:41,882 INFO L225 Difference]: With dead ends: 9688 [2022-07-12 16:28:41,883 INFO L226 Difference]: Without dead ends: 6435 [2022-07-12 16:28:41,903 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 [2022-07-12 16:28:41,905 INFO L413 NwaCegarLoop]: 2787 mSDtfsCounter, 2316 mSDsluCounter, 2331 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-07-12 16:28:41,905 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] [2022-07-12 16:28:41,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6435 states. [2022-07-12 16:28:42,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6435 to 6405. [2022-07-12 16:28:42,232 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) [2022-07-12 16:28:42,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6405 states to 6405 states and 8990 transitions. [2022-07-12 16:28:42,280 INFO L78 Accepts]: Start accepts. Automaton has 6405 states and 8990 transitions. Word has length 122 [2022-07-12 16:28:42,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:28:42,280 INFO L495 AbstractCegarLoop]: Abstraction has 6405 states and 8990 transitions. [2022-07-12 16:28:42,281 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) [2022-07-12 16:28:42,281 INFO L276 IsEmpty]: Start isEmpty. Operand 6405 states and 8990 transitions. [2022-07-12 16:28:42,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-12 16:28:42,287 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:28:42,287 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] [2022-07-12 16:28:42,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 16:28:42,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:28:42,508 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:28:42,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:28:42,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1237945319, now seen corresponding path program 1 times [2022-07-12 16:28:42,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:28:42,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1592732711] [2022-07-12 16:28:42,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:28:42,510 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:28:42,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:28:42,515 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:28:42,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 16:28:43,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:43,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:28:43,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:28:43,676 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-12 16:28:43,676 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:28:43,677 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:28:43,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1592732711] [2022-07-12 16:28:43,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1592732711] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:28:43,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:28:43,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:28:43,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159414838] [2022-07-12 16:28:43,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:28:43,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:28:43,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:28:43,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:28:43,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:28:43,679 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) [2022-07-12 16:28:44,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:28:44,208 INFO L93 Difference]: Finished difference Result 18231 states and 25526 transitions. [2022-07-12 16:28:44,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:28:44,210 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 [2022-07-12 16:28:44,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:28:44,292 INFO L225 Difference]: With dead ends: 18231 [2022-07-12 16:28:44,292 INFO L226 Difference]: Without dead ends: 11847 [2022-07-12 16:28:44,331 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 [2022-07-12 16:28:44,333 INFO L413 NwaCegarLoop]: 2854 mSDtfsCounter, 2029 mSDsluCounter, 2320 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 16:28:44,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2029 Valid, 5174 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 16:28:44,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11847 states. [2022-07-12 16:28:44,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11847 to 11813. [2022-07-12 16:28:44,902 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) [2022-07-12 16:28:44,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11813 states to 11813 states and 16514 transitions. [2022-07-12 16:28:44,978 INFO L78 Accepts]: Start accepts. Automaton has 11813 states and 16514 transitions. Word has length 122 [2022-07-12 16:28:44,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:28:44,983 INFO L495 AbstractCegarLoop]: Abstraction has 11813 states and 16514 transitions. [2022-07-12 16:28:44,984 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) [2022-07-12 16:28:44,985 INFO L276 IsEmpty]: Start isEmpty. Operand 11813 states and 16514 transitions. [2022-07-12 16:28:44,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-07-12 16:28:44,989 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:28:44,989 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] [2022-07-12 16:28:45,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-12 16:28:45,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:28:45,204 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:28:45,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:28:45,204 INFO L85 PathProgramCache]: Analyzing trace with hash -155362643, now seen corresponding path program 1 times [2022-07-12 16:28:45,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:28:45,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [26815934] [2022-07-12 16:28:45,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:28:45,206 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:28:45,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:28:45,211 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:28:45,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 16:28:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:46,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 1158 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:28:46,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:28:46,441 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-12 16:28:46,441 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:28:46,442 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:28:46,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [26815934] [2022-07-12 16:28:46,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [26815934] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:28:46,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:28:46,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:28:46,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631561603] [2022-07-12 16:28:46,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:28:46,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:28:46,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:28:46,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:28:46,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:28:46,444 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) [2022-07-12 16:28:47,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:28:47,316 INFO L93 Difference]: Finished difference Result 34375 states and 48048 transitions. [2022-07-12 16:28:47,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:28:47,317 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 [2022-07-12 16:28:47,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:28:47,455 INFO L225 Difference]: With dead ends: 34375 [2022-07-12 16:28:47,456 INFO L226 Difference]: Without dead ends: 22583 [2022-07-12 16:28:47,533 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 [2022-07-12 16:28:47,534 INFO L413 NwaCegarLoop]: 2767 mSDtfsCounter, 2161 mSDsluCounter, 2317 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-07-12 16:28:47,534 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] [2022-07-12 16:28:47,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22583 states. [2022-07-12 16:28:48,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22583 to 22547. [2022-07-12 16:28:48,470 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) [2022-07-12 16:28:48,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22547 states to 22547 states and 31478 transitions. [2022-07-12 16:28:48,593 INFO L78 Accepts]: Start accepts. Automaton has 22547 states and 31478 transitions. Word has length 128 [2022-07-12 16:28:48,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:28:48,594 INFO L495 AbstractCegarLoop]: Abstraction has 22547 states and 31478 transitions. [2022-07-12 16:28:48,594 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) [2022-07-12 16:28:48,595 INFO L276 IsEmpty]: Start isEmpty. Operand 22547 states and 31478 transitions. [2022-07-12 16:28:48,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-07-12 16:28:48,597 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:28:48,597 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] [2022-07-12 16:28:48,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-12 16:28:48,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:28:48,811 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)] === [2022-07-12 16:28:48,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:28:48,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1030222312, now seen corresponding path program 1 times [2022-07-12 16:28:48,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:28:48,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [804380851] [2022-07-12 16:28:48,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:28:48,814 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:28:48,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:28:48,816 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:28:48,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-12 16:28:49,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:49,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 1192 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:28:49,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:28:50,043 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-12 16:28:50,044 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:28:50,044 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:28:50,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [804380851] [2022-07-12 16:28:50,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [804380851] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:28:50,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:28:50,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:28:50,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800830321] [2022-07-12 16:28:50,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:28:50,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:28:50,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:28:50,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:28:50,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:28:50,045 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) [2022-07-12 16:28:51,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:28:51,198 INFO L93 Difference]: Finished difference Result 41048 states and 57339 transitions. [2022-07-12 16:28:51,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:28:51,199 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 [2022-07-12 16:28:51,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:28:51,306 INFO L225 Difference]: With dead ends: 41048 [2022-07-12 16:28:51,307 INFO L226 Difference]: Without dead ends: 18522 [2022-07-12 16:28:51,402 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 [2022-07-12 16:28:51,403 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 [2022-07-12 16:28:51,404 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] [2022-07-12 16:28:51,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18522 states. [2022-07-12 16:28:52,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18522 to 18482. [2022-07-12 16:28:52,182 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) [2022-07-12 16:28:52,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18482 states to 18482 states and 25681 transitions. [2022-07-12 16:28:52,279 INFO L78 Accepts]: Start accepts. Automaton has 18482 states and 25681 transitions. Word has length 126 [2022-07-12 16:28:52,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:28:52,280 INFO L495 AbstractCegarLoop]: Abstraction has 18482 states and 25681 transitions. [2022-07-12 16:28:52,280 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) [2022-07-12 16:28:52,280 INFO L276 IsEmpty]: Start isEmpty. Operand 18482 states and 25681 transitions. [2022-07-12 16:28:52,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-07-12 16:28:52,282 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:28:52,282 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] [2022-07-12 16:28:52,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-12 16:28:52,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:28:52,495 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)] === [2022-07-12 16:28:52,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:28:52,496 INFO L85 PathProgramCache]: Analyzing trace with hash 982818423, now seen corresponding path program 1 times [2022-07-12 16:28:52,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:28:52,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1386906312] [2022-07-12 16:28:52,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:28:52,498 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:28:52,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:28:52,500 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:28:52,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-12 16:28:53,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:53,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 1189 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:28:53,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:28:53,551 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-12 16:28:53,552 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:28:53,552 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:28:53,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1386906312] [2022-07-12 16:28:53,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1386906312] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:28:53,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:28:53,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:28:53,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653245043] [2022-07-12 16:28:53,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:28:53,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:28:53,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:28:53,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:28:53,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:28:53,554 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) [2022-07-12 16:28:54,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:28:54,528 INFO L93 Difference]: Finished difference Result 53720 states and 74704 transitions. [2022-07-12 16:28:54,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:28:54,528 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 [2022-07-12 16:28:54,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:28:54,719 INFO L225 Difference]: With dead ends: 53720 [2022-07-12 16:28:54,719 INFO L226 Difference]: Without dead ends: 35259 [2022-07-12 16:28:54,787 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 [2022-07-12 16:28:54,788 INFO L413 NwaCegarLoop]: 3145 mSDtfsCounter, 2327 mSDsluCounter, 2368 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 16:28:54,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2327 Valid, 5513 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 16:28:54,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35259 states. [2022-07-12 16:28:56,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35259 to 35201. [2022-07-12 16:28:56,399 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) [2022-07-12 16:28:56,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35201 states to 35201 states and 48934 transitions. [2022-07-12 16:28:56,719 INFO L78 Accepts]: Start accepts. Automaton has 35201 states and 48934 transitions. Word has length 145 [2022-07-12 16:28:56,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:28:56,720 INFO L495 AbstractCegarLoop]: Abstraction has 35201 states and 48934 transitions. [2022-07-12 16:28:56,720 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) [2022-07-12 16:28:56,720 INFO L276 IsEmpty]: Start isEmpty. Operand 35201 states and 48934 transitions. [2022-07-12 16:28:56,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-12 16:28:56,727 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:28:56,727 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] [2022-07-12 16:28:56,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-12 16:28:56,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:28:56,943 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:28:56,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:28:56,944 INFO L85 PathProgramCache]: Analyzing trace with hash -361805188, now seen corresponding path program 1 times [2022-07-12 16:28:56,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:28:56,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [179625260] [2022-07-12 16:28:56,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:28:56,946 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:28:56,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:28:56,947 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:28:56,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-12 16:28:57,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:57,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:28:57,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:28:58,630 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-12 16:28:58,630 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:28:58,630 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:28:58,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [179625260] [2022-07-12 16:28:58,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [179625260] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:28:58,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:28:58,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 16:28:58,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260123641] [2022-07-12 16:28:58,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:28:58,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:28:58,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:28:58,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:28:58,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:28:58,632 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) [2022-07-12 16:29:00,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:29:00,327 INFO L93 Difference]: Finished difference Result 105449 states and 148202 transitions. [2022-07-12 16:29:00,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:29:00,328 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 [2022-07-12 16:29:00,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:29:00,735 INFO L225 Difference]: With dead ends: 105449 [2022-07-12 16:29:00,736 INFO L226 Difference]: Without dead ends: 70325 [2022-07-12 16:29:00,963 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 [2022-07-12 16:29:00,964 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 [2022-07-12 16:29:00,965 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] [2022-07-12 16:29:01,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70325 states. [2022-07-12 16:29:03,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70325 to 70299. [2022-07-12 16:29:03,257 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) [2022-07-12 16:29:04,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70299 states to 70299 states and 97752 transitions. [2022-07-12 16:29:04,031 INFO L78 Accepts]: Start accepts. Automaton has 70299 states and 97752 transitions. Word has length 183 [2022-07-12 16:29:04,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:29:04,032 INFO L495 AbstractCegarLoop]: Abstraction has 70299 states and 97752 transitions. [2022-07-12 16:29:04,032 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) [2022-07-12 16:29:04,032 INFO L276 IsEmpty]: Start isEmpty. Operand 70299 states and 97752 transitions. [2022-07-12 16:29:04,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-12 16:29:04,036 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:29:04,036 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] [2022-07-12 16:29:04,068 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-12 16:29:04,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:29:04,265 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:29:04,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:29:04,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1546652602, now seen corresponding path program 1 times [2022-07-12 16:29:04,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:29:04,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1079395817] [2022-07-12 16:29:04,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:29:04,267 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:29:04,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:29:04,269 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:29:04,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-12 16:29:05,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:29:05,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:29:05,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:29:05,919 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-12 16:29:05,919 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:29:05,919 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:29:05,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1079395817] [2022-07-12 16:29:05,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1079395817] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:29:05,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:29:05,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 16:29:05,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149508733] [2022-07-12 16:29:05,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:29:05,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:29:05,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:29:05,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:29:05,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:29:05,921 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) [2022-07-12 16:29:07,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:29:07,311 INFO L93 Difference]: Finished difference Result 105423 states and 145991 transitions. [2022-07-12 16:29:07,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:29:07,312 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 [2022-07-12 16:29:07,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:29:07,534 INFO L225 Difference]: With dead ends: 105423 [2022-07-12 16:29:07,534 INFO L226 Difference]: Without dead ends: 35201 [2022-07-12 16:29:07,786 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 [2022-07-12 16:29:07,787 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 [2022-07-12 16:29:07,787 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] [2022-07-12 16:29:07,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35201 states. [2022-07-12 16:29:08,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35201 to 35201. [2022-07-12 16:29:08,915 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) [2022-07-12 16:29:09,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35201 states to 35201 states and 48298 transitions. [2022-07-12 16:29:09,069 INFO L78 Accepts]: Start accepts. Automaton has 35201 states and 48298 transitions. Word has length 183 [2022-07-12 16:29:09,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:29:09,070 INFO L495 AbstractCegarLoop]: Abstraction has 35201 states and 48298 transitions. [2022-07-12 16:29:09,070 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) [2022-07-12 16:29:09,070 INFO L276 IsEmpty]: Start isEmpty. Operand 35201 states and 48298 transitions. [2022-07-12 16:29:09,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-12 16:29:09,073 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:29:09,073 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] [2022-07-12 16:29:09,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-12 16:29:09,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:29:09,287 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:29:09,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:29:09,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1054026428, now seen corresponding path program 1 times [2022-07-12 16:29:09,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:29:09,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [455579327] [2022-07-12 16:29:09,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:29:09,289 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:29:09,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:29:09,292 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:29:09,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-12 16:29:10,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:29:10,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 1254 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:29:10,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:29:11,125 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-12 16:29:11,125 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:29:11,125 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:29:11,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [455579327] [2022-07-12 16:29:11,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [455579327] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:29:11,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:29:11,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 16:29:11,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277393637] [2022-07-12 16:29:11,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:29:11,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:29:11,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:29:11,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:29:11,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:29:11,128 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) [2022-07-12 16:29:11,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:29:11,992 INFO L93 Difference]: Finished difference Result 70325 states and 96505 transitions. [2022-07-12 16:29:11,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:29:11,993 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 [2022-07-12 16:29:11,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:29:12,149 INFO L225 Difference]: With dead ends: 70325 [2022-07-12 16:29:12,149 INFO L226 Difference]: Without dead ends: 35201 [2022-07-12 16:29:12,287 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 [2022-07-12 16:29:12,290 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 [2022-07-12 16:29:12,290 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] [2022-07-12 16:29:12,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35201 states. [2022-07-12 16:29:13,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35201 to 35201. [2022-07-12 16:29:13,334 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) [2022-07-12 16:29:13,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35201 states to 35201 states and 48266 transitions. [2022-07-12 16:29:13,493 INFO L78 Accepts]: Start accepts. Automaton has 35201 states and 48266 transitions. Word has length 183 [2022-07-12 16:29:13,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:29:13,494 INFO L495 AbstractCegarLoop]: Abstraction has 35201 states and 48266 transitions. [2022-07-12 16:29:13,494 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) [2022-07-12 16:29:13,494 INFO L276 IsEmpty]: Start isEmpty. Operand 35201 states and 48266 transitions. [2022-07-12 16:29:13,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-12 16:29:13,497 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:29:13,497 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] [2022-07-12 16:29:13,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-12 16:29:13,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:29:13,712 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:29:13,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:29:13,712 INFO L85 PathProgramCache]: Analyzing trace with hash 2007966586, now seen corresponding path program 1 times [2022-07-12 16:29:13,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:29:13,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [294065631] [2022-07-12 16:29:13,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:29:13,714 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:29:13,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:29:13,720 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:29:13,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-12 16:29:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:29:14,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 1253 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:29:14,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:29:15,503 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-12 16:29:15,503 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:29:15,504 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:29:15,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [294065631] [2022-07-12 16:29:15,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [294065631] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:29:15,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:29:15,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 16:29:15,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179893154] [2022-07-12 16:29:15,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:29:15,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:29:15,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:29:15,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:29:15,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:29:15,506 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) [2022-07-12 16:29:16,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:29:16,515 INFO L93 Difference]: Finished difference Result 70293 states and 96409 transitions. [2022-07-12 16:29:16,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:29:16,516 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 [2022-07-12 16:29:16,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:29:16,665 INFO L225 Difference]: With dead ends: 70293 [2022-07-12 16:29:16,665 INFO L226 Difference]: Without dead ends: 35169 [2022-07-12 16:29:16,950 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 [2022-07-12 16:29:16,951 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 [2022-07-12 16:29:16,951 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] [2022-07-12 16:29:16,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35169 states. [2022-07-12 16:29:17,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35169 to 35169. [2022-07-12 16:29:17,799 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) [2022-07-12 16:29:18,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35169 states to 35169 states and 48074 transitions. [2022-07-12 16:29:18,060 INFO L78 Accepts]: Start accepts. Automaton has 35169 states and 48074 transitions. Word has length 183 [2022-07-12 16:29:18,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:29:18,061 INFO L495 AbstractCegarLoop]: Abstraction has 35169 states and 48074 transitions. [2022-07-12 16:29:18,061 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) [2022-07-12 16:29:18,061 INFO L276 IsEmpty]: Start isEmpty. Operand 35169 states and 48074 transitions. [2022-07-12 16:29:18,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-12 16:29:18,064 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:29:18,064 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] [2022-07-12 16:29:18,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-12 16:29:18,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:29:18,279 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:29:18,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:29:18,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1700673724, now seen corresponding path program 1 times [2022-07-12 16:29:18,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:29:18,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1442239801] [2022-07-12 16:29:18,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:29:18,281 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:29:18,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:29:18,282 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:29:18,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-12 16:29:19,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:29:19,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 1257 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:29:19,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:29:19,867 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-12 16:29:19,867 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:29:19,867 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:29:19,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1442239801] [2022-07-12 16:29:19,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1442239801] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:29:19,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:29:19,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 16:29:19,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486354341] [2022-07-12 16:29:19,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:29:19,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:29:19,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:29:19,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:29:19,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:29:19,869 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) [2022-07-12 16:29:20,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:29:20,912 INFO L93 Difference]: Finished difference Result 69973 states and 95753 transitions. [2022-07-12 16:29:20,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:29:20,912 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 [2022-07-12 16:29:20,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:29:21,085 INFO L225 Difference]: With dead ends: 69973 [2022-07-12 16:29:21,085 INFO L226 Difference]: Without dead ends: 34881 [2022-07-12 16:29:21,241 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 [2022-07-12 16:29:21,242 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 [2022-07-12 16:29:21,242 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] [2022-07-12 16:29:21,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34881 states. [2022-07-12 16:29:22,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34881 to 34881. [2022-07-12 16:29:22,301 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) [2022-07-12 16:29:22,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34881 states to 34881 states and 47562 transitions. [2022-07-12 16:29:22,414 INFO L78 Accepts]: Start accepts. Automaton has 34881 states and 47562 transitions. Word has length 187 [2022-07-12 16:29:22,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:29:22,415 INFO L495 AbstractCegarLoop]: Abstraction has 34881 states and 47562 transitions. [2022-07-12 16:29:22,415 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) [2022-07-12 16:29:22,415 INFO L276 IsEmpty]: Start isEmpty. Operand 34881 states and 47562 transitions. [2022-07-12 16:29:22,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-12 16:29:22,417 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:29:22,417 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] [2022-07-12 16:29:22,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-12 16:29:22,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:29:22,631 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:29:22,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:29:22,632 INFO L85 PathProgramCache]: Analyzing trace with hash 908113734, now seen corresponding path program 1 times [2022-07-12 16:29:22,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:29:22,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1173971445] [2022-07-12 16:29:22,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:29:22,633 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:29:22,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:29:22,634 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:29:22,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-12 16:29:23,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:29:23,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 1256 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:29:23,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:29:24,266 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-12 16:29:24,266 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:29:24,266 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:29:24,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1173971445] [2022-07-12 16:29:24,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1173971445] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:29:24,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:29:24,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 16:29:24,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836754558] [2022-07-12 16:29:24,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:29:24,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:29:24,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:29:24,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:29:24,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:29:24,268 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) [2022-07-12 16:29:25,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:29:25,531 INFO L93 Difference]: Finished difference Result 69685 states and 95161 transitions. [2022-07-12 16:29:25,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:29:25,531 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 [2022-07-12 16:29:25,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:29:25,654 INFO L225 Difference]: With dead ends: 69685 [2022-07-12 16:29:25,654 INFO L226 Difference]: Without dead ends: 34881 [2022-07-12 16:29:25,755 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 [2022-07-12 16:29:25,755 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 [2022-07-12 16:29:25,755 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] [2022-07-12 16:29:25,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34881 states. [2022-07-12 16:29:26,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34881 to 34881. [2022-07-12 16:29:26,920 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) [2022-07-12 16:29:27,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34881 states to 34881 states and 47506 transitions. [2022-07-12 16:29:27,033 INFO L78 Accepts]: Start accepts. Automaton has 34881 states and 47506 transitions. Word has length 187 [2022-07-12 16:29:27,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:29:27,033 INFO L495 AbstractCegarLoop]: Abstraction has 34881 states and 47506 transitions. [2022-07-12 16:29:27,033 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) [2022-07-12 16:29:27,033 INFO L276 IsEmpty]: Start isEmpty. Operand 34881 states and 47506 transitions. [2022-07-12 16:29:27,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-12 16:29:27,035 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:29:27,035 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] [2022-07-12 16:29:27,061 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-12 16:29:27,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:29:27,239 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:29:27,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:29:27,240 INFO L85 PathProgramCache]: Analyzing trace with hash 853720836, now seen corresponding path program 1 times [2022-07-12 16:29:27,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:29:27,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [313059217] [2022-07-12 16:29:27,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:29:27,241 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:29:27,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:29:27,242 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:29:27,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-12 16:29:28,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:29:28,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:29:28,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:29:28,849 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-12 16:29:28,849 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:29:28,849 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:29:28,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [313059217] [2022-07-12 16:29:28,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [313059217] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:29:28,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:29:28,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 16:29:28,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206323955] [2022-07-12 16:29:28,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:29:28,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:29:28,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:29:28,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:29:28,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:29:28,852 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) [2022-07-12 16:29:30,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:29:30,098 INFO L93 Difference]: Finished difference Result 69637 states and 95001 transitions. [2022-07-12 16:29:30,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:29:30,099 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 [2022-07-12 16:29:30,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:29:30,218 INFO L225 Difference]: With dead ends: 69637 [2022-07-12 16:29:30,219 INFO L226 Difference]: Without dead ends: 34833 [2022-07-12 16:29:30,312 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 [2022-07-12 16:29:30,312 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 [2022-07-12 16:29:30,313 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] [2022-07-12 16:29:30,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34833 states. [2022-07-12 16:29:31,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34833 to 34833. [2022-07-12 16:29:31,486 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) [2022-07-12 16:29:31,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34833 states to 34833 states and 47402 transitions. [2022-07-12 16:29:31,592 INFO L78 Accepts]: Start accepts. Automaton has 34833 states and 47402 transitions. Word has length 187 [2022-07-12 16:29:31,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:29:31,593 INFO L495 AbstractCegarLoop]: Abstraction has 34833 states and 47402 transitions. [2022-07-12 16:29:31,593 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) [2022-07-12 16:29:31,593 INFO L276 IsEmpty]: Start isEmpty. Operand 34833 states and 47402 transitions. [2022-07-12 16:29:31,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-12 16:29:31,595 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:29:31,595 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] [2022-07-12 16:29:31,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-12 16:29:31,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:29:31,815 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:29:31,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:29:31,816 INFO L85 PathProgramCache]: Analyzing trace with hash 436324230, now seen corresponding path program 1 times [2022-07-12 16:29:31,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:29:31,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1369960574] [2022-07-12 16:29:31,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:29:31,817 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:29:31,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:29:31,818 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:29:31,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-12 16:29:32,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:29:32,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 1254 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:29:32,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:29:33,367 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-12 16:29:33,367 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:29:33,367 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:29:33,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1369960574] [2022-07-12 16:29:33,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1369960574] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:29:33,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:29:33,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 16:29:33,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613773303] [2022-07-12 16:29:33,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:29:33,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:29:33,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:29:33,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:29:33,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:29:33,370 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) [2022-07-12 16:29:35,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:29:35,496 INFO L93 Difference]: Finished difference Result 103505 states and 141056 transitions. [2022-07-12 16:29:35,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:29:35,496 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 [2022-07-12 16:29:35,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:29:35,712 INFO L225 Difference]: With dead ends: 103505 [2022-07-12 16:29:35,712 INFO L226 Difference]: Without dead ends: 68749 [2022-07-12 16:29:35,807 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 [2022-07-12 16:29:35,808 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 [2022-07-12 16:29:35,808 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] [2022-07-12 16:29:35,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68749 states. [2022-07-12 16:29:38,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68749 to 68723. [2022-07-12 16:29:38,159 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) [2022-07-12 16:29:38,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68723 states to 68723 states and 93502 transitions. [2022-07-12 16:29:38,439 INFO L78 Accepts]: Start accepts. Automaton has 68723 states and 93502 transitions. Word has length 187 [2022-07-12 16:29:38,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:29:38,440 INFO L495 AbstractCegarLoop]: Abstraction has 68723 states and 93502 transitions. [2022-07-12 16:29:38,440 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) [2022-07-12 16:29:38,440 INFO L276 IsEmpty]: Start isEmpty. Operand 68723 states and 93502 transitions. [2022-07-12 16:29:38,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-12 16:29:38,442 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:29:38,442 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] [2022-07-12 16:29:38,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-12 16:29:38,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:29:38,650 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:29:38,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:29:38,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1115596484, now seen corresponding path program 1 times [2022-07-12 16:29:38,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:29:38,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2139101816] [2022-07-12 16:29:38,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:29:38,652 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:29:38,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:29:38,654 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:29:38,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-12 16:29:39,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:29:39,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 1253 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:29:39,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:29:39,610 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-07-12 16:29:39,610 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:29:39,610 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:29:39,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2139101816] [2022-07-12 16:29:39,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2139101816] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:29:39,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:29:39,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:29:39,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28823311] [2022-07-12 16:29:39,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:29:39,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:29:39,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:29:39,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:29:39,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:29:39,611 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) [2022-07-12 16:29:43,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:29:43,837 INFO L93 Difference]: Finished difference Result 201225 states and 274179 transitions. [2022-07-12 16:29:43,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:29:43,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (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) Word has length 187 [2022-07-12 16:29:43,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:29:44,375 INFO L225 Difference]: With dead ends: 201225 [2022-07-12 16:29:44,376 INFO L226 Difference]: Without dead ends: 132579 [2022-07-12 16:29:44,855 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 [2022-07-12 16:29:44,856 INFO L413 NwaCegarLoop]: 3226 mSDtfsCounter, 2151 mSDsluCounter, 2292 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2151 SdHoareTripleChecker+Valid, 5518 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 16:29:44,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2151 Valid, 5518 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 16:29:44,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132579 states.