./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 eb692b52 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-?-eb692b5 [2022-07-20 03:30:10,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 03:30:10,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 03:30:10,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 03:30:10,401 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 03:30:10,403 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 03:30:10,405 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 03:30:10,407 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 03:30:10,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 03:30:10,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 03:30:10,417 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 03:30:10,420 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 03:30:10,420 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 03:30:10,422 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 03:30:10,423 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 03:30:10,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 03:30:10,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 03:30:10,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 03:30:10,431 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 03:30:10,434 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 03:30:10,437 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 03:30:10,439 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 03:30:10,440 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 03:30:10,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 03:30:10,442 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 03:30:10,447 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 03:30:10,447 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 03:30:10,448 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 03:30:10,449 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 03:30:10,449 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 03:30:10,450 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 03:30:10,451 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 03:30:10,452 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 03:30:10,453 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 03:30:10,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 03:30:10,454 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 03:30:10,455 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 03:30:10,455 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 03:30:10,456 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 03:30:10,456 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 03:30:10,457 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 03:30:10,458 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 03:30:10,459 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-20 03:30:10,496 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 03:30:10,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 03:30:10,497 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 03:30:10,497 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 03:30:10,498 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 03:30:10,498 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 03:30:10,498 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 03:30:10,499 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 03:30:10,499 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 03:30:10,500 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 03:30:10,500 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 03:30:10,500 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 03:30:10,501 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 03:30:10,501 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 03:30:10,501 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 03:30:10,501 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 03:30:10,501 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 03:30:10,502 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 03:30:10,502 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 03:30:10,502 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 03:30:10,502 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 03:30:10,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 03:30:10,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 03:30:10,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 03:30:10,503 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 03:30:10,503 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 03:30:10,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 03:30:10,504 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 03:30:10,504 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 03:30:10,504 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 03:30:10,504 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ee317e42bc2e06685ca0df819e5fc98feaca323581d52409851fe6eefd66a2a [2022-07-20 03:30:10,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 03:30:10,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 03:30:10,744 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 03:30:10,745 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 03:30:10,746 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 03:30:10,747 INFO L432 ainManager$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 [2022-07-20 03:30:10,813 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be35be7fa/d5ad42c4c0794bd59dd8bc5f09745325/FLAG20d00b392 [2022-07-20 03:30:11,604 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 03:30:11,604 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 [2022-07-20 03:30:11,654 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be35be7fa/d5ad42c4c0794bd59dd8bc5f09745325/FLAG20d00b392 [2022-07-20 03:30:11,848 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be35be7fa/d5ad42c4c0794bd59dd8bc5f09745325 [2022-07-20 03:30:11,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 03:30:11,851 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 03:30:11,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 03:30:11,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 03:30:11,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 03:30:11,857 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 03:30:11" (1/1) ... [2022-07-20 03:30:11,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4770beed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:30:11, skipping insertion in model container [2022-07-20 03:30:11,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 03:30:11" (1/1) ... [2022-07-20 03:30:11,865 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 03:30:12,001 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 03:30:14,271 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] [2022-07-20 03:30:14,273 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] [2022-07-20 03:30:14,274 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] [2022-07-20 03:30:14,275 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] [2022-07-20 03:30:14,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 03:30:14,326 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 03:30:14,467 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) [2022-07-20 03:30:14,473 INFO L158 Benchmark]: Toolchain (without parser) took 2619.85ms. Allocated memory was 90.2MB in the beginning and 130.0MB in the end (delta: 39.8MB). Free memory was 59.1MB in the beginning and 67.2MB in the end (delta: -8.1MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. [2022-07-20 03:30:14,473 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 90.2MB. Free memory is still 53.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 03:30:14,474 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2617.00ms. Allocated memory was 90.2MB in the beginning and 130.0MB in the end (delta: 39.8MB). Free memory was 58.9MB in the beginning and 67.2MB in the end (delta: -8.3MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. [2022-07-20 03:30:14,476 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 90.2MB. Free memory is still 53.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2617.00ms. Allocated memory was 90.2MB in the beginning and 130.0MB in the end (delta: 39.8MB). Free memory was 58.9MB in the beginning and 67.2MB in the end (delta: -8.3MB). Peak memory consumption was 66.6MB. 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-?-eb692b5 [2022-07-20 03:30:16,236 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 03:30:16,239 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 03:30:16,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 03:30:16,274 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 03:30:16,275 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 03:30:16,280 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 03:30:16,283 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 03:30:16,284 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 03:30:16,290 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 03:30:16,291 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 03:30:16,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 03:30:16,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 03:30:16,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 03:30:16,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 03:30:16,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 03:30:16,304 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 03:30:16,305 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 03:30:16,307 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 03:30:16,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 03:30:16,313 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 03:30:16,314 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 03:30:16,314 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 03:30:16,316 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 03:30:16,316 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 03:30:16,319 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 03:30:16,321 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 03:30:16,321 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 03:30:16,322 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 03:30:16,322 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 03:30:16,323 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 03:30:16,323 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 03:30:16,325 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 03:30:16,326 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 03:30:16,327 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 03:30:16,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 03:30:16,328 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 03:30:16,329 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 03:30:16,329 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 03:30:16,329 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 03:30:16,330 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 03:30:16,331 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 03:30:16,332 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-20 03:30:16,378 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 03:30:16,379 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 03:30:16,379 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 03:30:16,380 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 03:30:16,381 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 03:30:16,381 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 03:30:16,381 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 03:30:16,381 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 03:30:16,381 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 03:30:16,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 03:30:16,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 03:30:16,382 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 03:30:16,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 03:30:16,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 03:30:16,382 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-20 03:30:16,383 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-20 03:30:16,383 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-20 03:30:16,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 03:30:16,383 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 03:30:16,383 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 03:30:16,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 03:30:16,383 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 03:30:16,384 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 03:30:16,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 03:30:16,384 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 03:30:16,384 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 03:30:16,384 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 03:30:16,384 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-20 03:30:16,384 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-20 03:30:16,385 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 03:30:16,385 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 03:30:16,385 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 03:30:16,385 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-20 03:30:16,385 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ee317e42bc2e06685ca0df819e5fc98feaca323581d52409851fe6eefd66a2a [2022-07-20 03:30:16,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 03:30:16,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 03:30:16,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 03:30:16,740 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 03:30:16,741 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 03:30:16,742 INFO L432 ainManager$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 [2022-07-20 03:30:16,801 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45c59e6a7/10f5b578996c4f51a1c1feda0e969b01/FLAG91da3d790 [2022-07-20 03:30:17,565 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 03:30:17,566 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 [2022-07-20 03:30:17,607 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45c59e6a7/10f5b578996c4f51a1c1feda0e969b01/FLAG91da3d790 [2022-07-20 03:30:17,650 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45c59e6a7/10f5b578996c4f51a1c1feda0e969b01 [2022-07-20 03:30:17,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 03:30:17,653 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 03:30:17,654 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 03:30:17,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 03:30:17,657 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 03:30:17,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 03:30:17" (1/1) ... [2022-07-20 03:30:17,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@479b9ec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:30:17, skipping insertion in model container [2022-07-20 03:30:17,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 03:30:17" (1/1) ... [2022-07-20 03:30:17,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 03:30:17,814 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 03:30:20,416 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] [2022-07-20 03:30:20,418 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] [2022-07-20 03:30:20,419 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] [2022-07-20 03:30:20,419 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] [2022-07-20 03:30:20,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 03:30:20,488 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-20 03:30:20,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 03:30:20,844 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] [2022-07-20 03:30:20,844 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] [2022-07-20 03:30:20,845 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] [2022-07-20 03:30:20,845 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] [2022-07-20 03:30:20,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 03:30:20,875 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 03:30:21,226 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] [2022-07-20 03:30:21,227 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323489,323502] [2022-07-20 03:30:21,228 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] [2022-07-20 03:30:21,229 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323824,323837] [2022-07-20 03:30:21,251 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 03:30:21,458 INFO L208 MainTranslator]: Completed translation [2022-07-20 03:30:21,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:30:21 WrapperNode [2022-07-20 03:30:21,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 03:30:21,461 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 03:30:21,461 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 03:30:21,462 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 03:30:21,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:30:21" (1/1) ... [2022-07-20 03:30:21,576 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:30:21" (1/1) ... [2022-07-20 03:30:21,748 INFO L137 Inliner]: procedures = 436, calls = 1985, calls flagged for inlining = 201, calls inlined = 184, statements flattened = 4910 [2022-07-20 03:30:21,750 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 03:30:21,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 03:30:21,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 03:30:21,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 03:30:21,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:30:21" (1/1) ... [2022-07-20 03:30:21,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:30:21" (1/1) ... [2022-07-20 03:30:21,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:30:21" (1/1) ... [2022-07-20 03:30:21,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:30:21" (1/1) ... [2022-07-20 03:30:21,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:30:21" (1/1) ... [2022-07-20 03:30:21,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:30:21" (1/1) ... [2022-07-20 03:30:22,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:30:21" (1/1) ... [2022-07-20 03:30:22,070 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 03:30:22,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 03:30:22,071 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 03:30:22,071 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 03:30:22,072 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:30:21" (1/1) ... [2022-07-20 03:30:22,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 03:30:22,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 03:30:22,100 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) [2022-07-20 03:30:22,111 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 [2022-07-20 03:30:22,134 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-20 03:30:22,135 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-20 03:30:22,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-20 03:30:22,135 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-20 03:30:22,135 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-20 03:30:22,136 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-20 03:30:22,136 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_set_filter_mode [2022-07-20 03:30:22,136 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_set_filter_mode [2022-07-20 03:30:22,136 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-20 03:30:22,136 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-20 03:30:22,137 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-20 03:30:22,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-20 03:30:22,137 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_resume [2022-07-20 03:30:22,137 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_resume [2022-07-20 03:30:22,137 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-20 03:30:22,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-20 03:30:22,137 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-20 03:30:22,138 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-20 03:30:22,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_dmfe_board_info [2022-07-20 03:30:22,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_dmfe_board_info [2022-07-20 03:30:22,138 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-20 03:30:22,138 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-20 03:30:22,138 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-07-20 03:30:22,139 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-07-20 03:30:22,139 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-07-20 03:30:22,139 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-07-20 03:30:22,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2022-07-20 03:30:22,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2022-07-20 03:30:22,140 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-20 03:30:22,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-20 03:30:22,140 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-20 03:30:22,140 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-20 03:30:22,140 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_reuse_skb [2022-07-20 03:30:22,140 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_reuse_skb [2022-07-20 03:30:22,140 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2022-07-20 03:30:22,141 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2022-07-20 03:30:22,141 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-20 03:30:22,141 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-20 03:30:22,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-20 03:30:22,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-20 03:30:22,142 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-20 03:30:22,142 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-20 03:30:22,143 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-20 03:30:22,143 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-20 03:30:22,143 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-20 03:30:22,143 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-20 03:30:22,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-20 03:30:22,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-20 03:30:22,144 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write [2022-07-20 03:30:22,144 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write [2022-07-20 03:30:22,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 03:30:22,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-20 03:30:22,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-20 03:30:22,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-20 03:30:22,145 INFO L130 BoogieDeclarations]: Found specification of procedure poll_dmfe [2022-07-20 03:30:22,145 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_dmfe [2022-07-20 03:30:22,145 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-20 03:30:22,145 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-20 03:30:22,145 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-20 03:30:22,146 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-20 03:30:22,146 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-07-20 03:30:22,147 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-07-20 03:30:22,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-20 03:30:22,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-20 03:30:22,148 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_remove_one [2022-07-20 03:30:22,148 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_remove_one [2022-07-20 03:30:22,148 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write_1bit [2022-07-20 03:30:22,148 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write_1bit [2022-07-20 03:30:22,148 INFO L130 BoogieDeclarations]: Found specification of procedure dm9132_id_table [2022-07-20 03:30:22,148 INFO L138 BoogieDeclarations]: Found implementation of procedure dm9132_id_table [2022-07-20 03:30:22,149 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-20 03:30:22,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-20 03:30:22,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-20 03:30:22,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-20 03:30:22,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-20 03:30:22,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-20 03:30:22,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-20 03:30:22,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-20 03:30:22,150 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_interrupt [2022-07-20 03:30:22,151 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_interrupt [2022-07-20 03:30:22,151 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-20 03:30:22,151 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-20 03:30:22,152 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read_1bit [2022-07-20 03:30:22,152 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read_1bit [2022-07-20 03:30:22,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-20 03:30:22,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-20 03:30:22,152 INFO L130 BoogieDeclarations]: Found specification of procedure cal_CRC [2022-07-20 03:30:22,152 INFO L138 BoogieDeclarations]: Found implementation of procedure cal_CRC [2022-07-20 03:30:22,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 03:30:22,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-20 03:30:22,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-20 03:30:22,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-20 03:30:22,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-20 03:30:22,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 03:30:22,153 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2022-07-20 03:30:22,153 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2022-07-20 03:30:22,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-20 03:30:22,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-20 03:30:22,154 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-20 03:30:22,154 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-20 03:30:22,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 03:30:22,156 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-07-20 03:30:22,156 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-07-20 03:30:22,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-20 03:30:22,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-20 03:30:22,159 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-20 03:30:22,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-20 03:30:22,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-20 03:30:22,160 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-07-20 03:30:22,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-07-20 03:30:22,161 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_free_rxbuffer [2022-07-20 03:30:22,161 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_free_rxbuffer [2022-07-20 03:30:22,167 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-20 03:30:22,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-20 03:30:22,168 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-20 03:30:22,168 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-20 03:30:22,168 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-20 03:30:22,168 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-20 03:30:22,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-20 03:30:22,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-20 03:30:22,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-20 03:30:22,169 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_stop [2022-07-20 03:30:22,169 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_stop [2022-07-20 03:30:22,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 03:30:22,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 03:30:22,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-20 03:30:22,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-20 03:30:22,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-20 03:30:22,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-20 03:30:22,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-20 03:30:22,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-20 03:30:22,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-20 03:30:22,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-20 03:30:22,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-20 03:30:22,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-20 03:30:22,171 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-20 03:30:22,171 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-20 03:30:22,171 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_open [2022-07-20 03:30:22,171 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_open [2022-07-20 03:30:22,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-20 03:30:22,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-20 03:30:22,172 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-20 03:30:22,172 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-20 03:30:22,172 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read [2022-07-20 03:30:22,172 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read [2022-07-20 03:30:22,172 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-20 03:30:22,172 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-20 03:30:22,173 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-20 03:30:22,173 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-20 03:30:22,173 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2022-07-20 03:30:22,173 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2022-07-20 03:30:22,174 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-20 03:30:22,174 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-20 03:30:22,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 03:30:22,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 03:30:22,174 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-20 03:30:22,174 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-20 03:30:22,174 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-07-20 03:30:22,174 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-07-20 03:30:22,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-20 03:30:22,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-20 03:30:22,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-20 03:30:22,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-20 03:30:22,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 03:30:22,175 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_init_dm910x [2022-07-20 03:30:22,175 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_init_dm910x [2022-07-20 03:30:22,176 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-20 03:30:22,176 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-20 03:30:22,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-20 03:30:22,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-20 03:30:22,176 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-07-20 03:30:22,176 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-07-20 03:30:22,176 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-20 03:30:22,177 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-20 03:30:22,177 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2022-07-20 03:30:22,177 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2022-07-20 03:30:22,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-20 03:30:22,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-20 03:30:22,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-20 03:30:22,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-20 03:30:22,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-20 03:30:22,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-20 03:30:22,178 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2022-07-20 03:30:22,178 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2022-07-20 03:30:22,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_dmfe_cleanup_module_14_2 [2022-07-20 03:30:22,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_dmfe_cleanup_module_14_2 [2022-07-20 03:30:22,178 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2022-07-20 03:30:22,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2022-07-20 03:30:22,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-20 03:30:22,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-20 03:30:22,179 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-07-20 03:30:22,179 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-07-20 03:30:22,179 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-20 03:30:22,179 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-20 03:30:22,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-20 03:30:22,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-20 03:30:22,931 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 03:30:22,934 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 03:30:25,367 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-20 03:31:05,536 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-20 03:31:05,573 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 03:31:05,596 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 03:31:05,597 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-20 03:31:05,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 03:31:05 BoogieIcfgContainer [2022-07-20 03:31:05,601 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 03:31:05,603 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 03:31:05,603 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 03:31:05,605 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 03:31:05,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 03:30:17" (1/3) ... [2022-07-20 03:31:05,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c5c3dd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 03:31:05, skipping insertion in model container [2022-07-20 03:31:05,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:30:21" (2/3) ... [2022-07-20 03:31:05,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c5c3dd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 03:31:05, skipping insertion in model container [2022-07-20 03:31:05,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 03:31:05" (3/3) ... [2022-07-20 03:31:05,608 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i [2022-07-20 03:31:05,620 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 03:31:05,620 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-20 03:31:05,722 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 03:31:05,728 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@2bc9acb5, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4a7cd98b [2022-07-20 03:31:05,728 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-20 03:31:05,738 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) [2022-07-20 03:31:05,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-20 03:31:05,767 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:31:05,768 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] [2022-07-20 03:31:05,769 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)] === [2022-07-20 03:31:05,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:31:05,774 INFO L85 PathProgramCache]: Analyzing trace with hash 355979356, now seen corresponding path program 1 times [2022-07-20 03:31:05,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:31:05,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1890770759] [2022-07-20 03:31:05,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:31:05,797 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:31:05,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:31:05,806 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) [2022-07-20 03:31:05,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-20 03:31:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:31:06,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 1113 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 03:31:06,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:31:07,037 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-20 03:31:07,037 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:31:07,038 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:31:07,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1890770759] [2022-07-20 03:31:07,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1890770759] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:31:07,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:31:07,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 03:31:07,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380506273] [2022-07-20 03:31:07,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:31:07,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 03:31:07,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:31:07,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 03:31:07,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:31:07,086 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) [2022-07-20 03:31:07,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:31:07,690 INFO L93 Difference]: Finished difference Result 4978 states and 7117 transitions. [2022-07-20 03:31:07,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 03:31:07,694 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 [2022-07-20 03:31:07,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:31:07,734 INFO L225 Difference]: With dead ends: 4978 [2022-07-20 03:31:07,735 INFO L226 Difference]: Without dead ends: 3278 [2022-07-20 03:31:07,752 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 [2022-07-20 03:31:07,757 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, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 03:31:07,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2266 Valid, 5102 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 03:31:07,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3278 states. [2022-07-20 03:31:07,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3278 to 3274. [2022-07-20 03:31:07,949 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) [2022-07-20 03:31:07,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3274 states to 3274 states and 4589 transitions. [2022-07-20 03:31:07,984 INFO L78 Accepts]: Start accepts. Automaton has 3274 states and 4589 transitions. Word has length 116 [2022-07-20 03:31:07,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:31:07,985 INFO L495 AbstractCegarLoop]: Abstraction has 3274 states and 4589 transitions. [2022-07-20 03:31:07,986 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) [2022-07-20 03:31:07,986 INFO L276 IsEmpty]: Start isEmpty. Operand 3274 states and 4589 transitions. [2022-07-20 03:31:07,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-20 03:31:07,989 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:31:07,990 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] [2022-07-20 03:31:08,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-20 03:31:08,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:31:08,212 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)] === [2022-07-20 03:31:08,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:31:08,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1373213958, now seen corresponding path program 1 times [2022-07-20 03:31:08,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:31:08,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1759390294] [2022-07-20 03:31:08,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:31:08,214 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:31:08,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:31:08,215 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) [2022-07-20 03:31:08,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-20 03:31:09,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:31:09,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 1161 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 03:31:09,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:31:09,381 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-20 03:31:09,382 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:31:09,382 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:31:09,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1759390294] [2022-07-20 03:31:09,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1759390294] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:31:09,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:31:09,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 03:31:09,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642699071] [2022-07-20 03:31:09,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:31:09,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 03:31:09,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:31:09,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 03:31:09,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:31:09,384 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) [2022-07-20 03:31:09,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:31:09,848 INFO L93 Difference]: Finished difference Result 9688 states and 13597 transitions. [2022-07-20 03:31:09,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 03:31:09,851 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 [2022-07-20 03:31:09,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:31:09,893 INFO L225 Difference]: With dead ends: 9688 [2022-07-20 03:31:09,893 INFO L226 Difference]: Without dead ends: 6435 [2022-07-20 03:31:09,911 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 [2022-07-20 03:31:09,912 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, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 03:31:09,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2316 Valid, 5118 Invalid, 23 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 03:31:09,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6435 states. [2022-07-20 03:31:10,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6435 to 6405. [2022-07-20 03:31:10,159 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) [2022-07-20 03:31:10,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6405 states to 6405 states and 8990 transitions. [2022-07-20 03:31:10,200 INFO L78 Accepts]: Start accepts. Automaton has 6405 states and 8990 transitions. Word has length 122 [2022-07-20 03:31:10,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:31:10,201 INFO L495 AbstractCegarLoop]: Abstraction has 6405 states and 8990 transitions. [2022-07-20 03:31:10,202 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) [2022-07-20 03:31:10,202 INFO L276 IsEmpty]: Start isEmpty. Operand 6405 states and 8990 transitions. [2022-07-20 03:31:10,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-20 03:31:10,204 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:31:10,204 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] [2022-07-20 03:31:10,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-20 03:31:10,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:31:10,424 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)] === [2022-07-20 03:31:10,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:31:10,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1237945319, now seen corresponding path program 1 times [2022-07-20 03:31:10,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:31:10,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1865886903] [2022-07-20 03:31:10,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:31:10,426 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:31:10,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:31:10,427 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) [2022-07-20 03:31:10,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-20 03:31:11,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:31:11,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 03:31:11,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:31:11,611 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-20 03:31:11,611 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:31:11,611 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:31:11,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1865886903] [2022-07-20 03:31:11,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1865886903] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:31:11,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:31:11,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 03:31:11,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526088357] [2022-07-20 03:31:11,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:31:11,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 03:31:11,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:31:11,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 03:31:11,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:31:11,613 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) [2022-07-20 03:31:12,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:31:12,058 INFO L93 Difference]: Finished difference Result 18231 states and 25526 transitions. [2022-07-20 03:31:12,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 03:31:12,060 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 [2022-07-20 03:31:12,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:31:12,196 INFO L225 Difference]: With dead ends: 18231 [2022-07-20 03:31:12,197 INFO L226 Difference]: Without dead ends: 11847 [2022-07-20 03:31:12,231 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 [2022-07-20 03:31:12,232 INFO L413 NwaCegarLoop]: 2854 mSDtfsCounter, 2029 mSDsluCounter, 2320 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2029 SdHoareTripleChecker+Valid, 5174 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 03:31:12,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2029 Valid, 5174 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 03:31:12,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11847 states. [2022-07-20 03:31:12,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11847 to 11813. [2022-07-20 03:31:12,722 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) [2022-07-20 03:31:12,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11813 states to 11813 states and 16514 transitions. [2022-07-20 03:31:12,791 INFO L78 Accepts]: Start accepts. Automaton has 11813 states and 16514 transitions. Word has length 122 [2022-07-20 03:31:12,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:31:12,793 INFO L495 AbstractCegarLoop]: Abstraction has 11813 states and 16514 transitions. [2022-07-20 03:31:12,794 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) [2022-07-20 03:31:12,794 INFO L276 IsEmpty]: Start isEmpty. Operand 11813 states and 16514 transitions. [2022-07-20 03:31:12,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-07-20 03:31:12,798 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:31:12,798 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] [2022-07-20 03:31:12,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-20 03:31:13,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:31:13,012 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)] === [2022-07-20 03:31:13,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:31:13,012 INFO L85 PathProgramCache]: Analyzing trace with hash -155362643, now seen corresponding path program 1 times [2022-07-20 03:31:13,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:31:13,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1051439271] [2022-07-20 03:31:13,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:31:13,013 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:31:13,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:31:13,016 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) [2022-07-20 03:31:13,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-20 03:31:13,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:31:13,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 1158 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 03:31:13,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:31:14,098 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-20 03:31:14,098 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:31:14,098 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:31:14,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1051439271] [2022-07-20 03:31:14,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1051439271] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:31:14,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:31:14,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 03:31:14,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81465971] [2022-07-20 03:31:14,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:31:14,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 03:31:14,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:31:14,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 03:31:14,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:31:14,100 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) [2022-07-20 03:31:15,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:31:15,188 INFO L93 Difference]: Finished difference Result 34375 states and 48048 transitions. [2022-07-20 03:31:15,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 03:31:15,189 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 [2022-07-20 03:31:15,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:31:15,393 INFO L225 Difference]: With dead ends: 34375 [2022-07-20 03:31:15,393 INFO L226 Difference]: Without dead ends: 22583 [2022-07-20 03:31:15,537 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 [2022-07-20 03:31:15,538 INFO L413 NwaCegarLoop]: 2767 mSDtfsCounter, 2161 mSDsluCounter, 2317 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2161 SdHoareTripleChecker+Valid, 5084 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 03:31:15,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2161 Valid, 5084 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 03:31:15,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22583 states. [2022-07-20 03:31:16,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22583 to 22547. [2022-07-20 03:31:16,579 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) [2022-07-20 03:31:16,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22547 states to 22547 states and 31478 transitions. [2022-07-20 03:31:16,958 INFO L78 Accepts]: Start accepts. Automaton has 22547 states and 31478 transitions. Word has length 128 [2022-07-20 03:31:16,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:31:16,959 INFO L495 AbstractCegarLoop]: Abstraction has 22547 states and 31478 transitions. [2022-07-20 03:31:16,959 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) [2022-07-20 03:31:16,959 INFO L276 IsEmpty]: Start isEmpty. Operand 22547 states and 31478 transitions. [2022-07-20 03:31:16,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-07-20 03:31:16,961 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:31:16,961 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] [2022-07-20 03:31:16,998 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-20 03:31:17,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:31:17,184 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)] === [2022-07-20 03:31:17,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:31:17,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1030222312, now seen corresponding path program 1 times [2022-07-20 03:31:17,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:31:17,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [447023338] [2022-07-20 03:31:17,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:31:17,186 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:31:17,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:31:17,189 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) [2022-07-20 03:31:17,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-20 03:31:18,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:31:18,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 1192 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 03:31:18,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:31:18,314 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-20 03:31:18,314 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:31:18,315 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:31:18,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [447023338] [2022-07-20 03:31:18,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [447023338] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:31:18,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:31:18,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 03:31:18,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104113317] [2022-07-20 03:31:18,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:31:18,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 03:31:18,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:31:18,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 03:31:18,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:31:18,316 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) [2022-07-20 03:31:19,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:31:19,650 INFO L93 Difference]: Finished difference Result 41048 states and 57339 transitions. [2022-07-20 03:31:19,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 03:31:19,650 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 [2022-07-20 03:31:19,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:31:19,813 INFO L225 Difference]: With dead ends: 41048 [2022-07-20 03:31:19,813 INFO L226 Difference]: Without dead ends: 18522 [2022-07-20 03:31:19,995 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 [2022-07-20 03:31:19,997 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, 0.5s IncrementalHoareTripleChecker+Time [2022-07-20 03:31:19,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1654 Valid, 5658 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-20 03:31:20,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18522 states. [2022-07-20 03:31:20,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18522 to 18482. [2022-07-20 03:31:20,765 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) [2022-07-20 03:31:20,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18482 states to 18482 states and 25681 transitions. [2022-07-20 03:31:20,870 INFO L78 Accepts]: Start accepts. Automaton has 18482 states and 25681 transitions. Word has length 126 [2022-07-20 03:31:20,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:31:20,871 INFO L495 AbstractCegarLoop]: Abstraction has 18482 states and 25681 transitions. [2022-07-20 03:31:20,871 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) [2022-07-20 03:31:20,871 INFO L276 IsEmpty]: Start isEmpty. Operand 18482 states and 25681 transitions. [2022-07-20 03:31:20,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-07-20 03:31:20,873 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:31:20,873 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] [2022-07-20 03:31:20,910 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-07-20 03:31:21,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:31:21,088 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)] === [2022-07-20 03:31:21,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:31:21,089 INFO L85 PathProgramCache]: Analyzing trace with hash 982818423, now seen corresponding path program 1 times [2022-07-20 03:31:21,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:31:21,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [167049535] [2022-07-20 03:31:21,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:31:21,090 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:31:21,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:31:21,091 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) [2022-07-20 03:31:21,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-20 03:31:22,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:31:22,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 1189 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 03:31:22,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:31:22,275 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-20 03:31:22,276 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:31:22,276 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:31:22,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [167049535] [2022-07-20 03:31:22,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [167049535] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:31:22,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:31:22,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 03:31:22,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701814977] [2022-07-20 03:31:22,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:31:22,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 03:31:22,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:31:22,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 03:31:22,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:31:22,279 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) [2022-07-20 03:31:23,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:31:23,261 INFO L93 Difference]: Finished difference Result 53720 states and 74704 transitions. [2022-07-20 03:31:23,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 03:31:23,262 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 [2022-07-20 03:31:23,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:31:23,618 INFO L225 Difference]: With dead ends: 53720 [2022-07-20 03:31:23,618 INFO L226 Difference]: Without dead ends: 35259 [2022-07-20 03:31:23,693 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 [2022-07-20 03:31:23,696 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, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 03:31:23,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2327 Valid, 5513 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 03:31:23,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35259 states. [2022-07-20 03:31:25,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35259 to 35201. [2022-07-20 03:31:25,152 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) [2022-07-20 03:31:25,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35201 states to 35201 states and 48934 transitions. [2022-07-20 03:31:25,554 INFO L78 Accepts]: Start accepts. Automaton has 35201 states and 48934 transitions. Word has length 145 [2022-07-20 03:31:25,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:31:25,555 INFO L495 AbstractCegarLoop]: Abstraction has 35201 states and 48934 transitions. [2022-07-20 03:31:25,555 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) [2022-07-20 03:31:25,556 INFO L276 IsEmpty]: Start isEmpty. Operand 35201 states and 48934 transitions. [2022-07-20 03:31:25,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-20 03:31:25,559 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:31:25,560 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] [2022-07-20 03:31:25,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-20 03:31:25,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:31:25,780 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)] === [2022-07-20 03:31:25,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:31:25,780 INFO L85 PathProgramCache]: Analyzing trace with hash -361805188, now seen corresponding path program 1 times [2022-07-20 03:31:25,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:31:25,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1408351400] [2022-07-20 03:31:25,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:31:25,781 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:31:25,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:31:25,784 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) [2022-07-20 03:31:25,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-20 03:31:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:31:27,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 03:31:27,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:31:27,826 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-20 03:31:27,827 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:31:27,827 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:31:27,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1408351400] [2022-07-20 03:31:27,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1408351400] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:31:27,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:31:27,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 03:31:27,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272865576] [2022-07-20 03:31:27,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:31:27,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 03:31:27,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:31:27,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 03:31:27,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:31:27,829 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) [2022-07-20 03:31:29,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:31:29,850 INFO L93 Difference]: Finished difference Result 105449 states and 148202 transitions. [2022-07-20 03:31:29,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 03:31:29,851 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 [2022-07-20 03:31:29,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:31:30,300 INFO L225 Difference]: With dead ends: 105449 [2022-07-20 03:31:30,300 INFO L226 Difference]: Without dead ends: 70325 [2022-07-20 03:31:30,520 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 [2022-07-20 03:31:30,521 INFO L413 NwaCegarLoop]: 4110 mSDtfsCounter, 2305 mSDsluCounter, 2296 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2022-07-20 03:31:30,521 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] [2022-07-20 03:31:30,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70325 states. [2022-07-20 03:31:32,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70325 to 70299. [2022-07-20 03:31:33,060 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) [2022-07-20 03:31:33,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70299 states to 70299 states and 97752 transitions. [2022-07-20 03:31:33,792 INFO L78 Accepts]: Start accepts. Automaton has 70299 states and 97752 transitions. Word has length 183 [2022-07-20 03:31:33,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:31:33,793 INFO L495 AbstractCegarLoop]: Abstraction has 70299 states and 97752 transitions. [2022-07-20 03:31:33,793 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) [2022-07-20 03:31:33,793 INFO L276 IsEmpty]: Start isEmpty. Operand 70299 states and 97752 transitions. [2022-07-20 03:31:33,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-20 03:31:33,796 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:31:33,796 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] [2022-07-20 03:31:33,832 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-20 03:31:34,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:31:34,016 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)] === [2022-07-20 03:31:34,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:31:34,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1546652602, now seen corresponding path program 1 times [2022-07-20 03:31:34,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:31:34,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [584618732] [2022-07-20 03:31:34,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:31:34,018 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:31:34,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:31:34,019 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) [2022-07-20 03:31:34,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-20 03:31:34,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:31:34,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 03:31:34,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:31:35,707 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-20 03:31:35,707 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:31:35,708 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:31:35,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [584618732] [2022-07-20 03:31:35,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [584618732] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:31:35,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:31:35,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 03:31:35,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883756087] [2022-07-20 03:31:35,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:31:35,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 03:31:35,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:31:35,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 03:31:35,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:31:35,710 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) [2022-07-20 03:31:37,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:31:37,179 INFO L93 Difference]: Finished difference Result 105423 states and 145991 transitions. [2022-07-20 03:31:37,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 03:31:37,179 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 [2022-07-20 03:31:37,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:31:37,416 INFO L225 Difference]: With dead ends: 105423 [2022-07-20 03:31:37,417 INFO L226 Difference]: Without dead ends: 35201 [2022-07-20 03:31:37,880 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 [2022-07-20 03:31:37,881 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 [2022-07-20 03:31:37,881 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] [2022-07-20 03:31:37,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35201 states. [2022-07-20 03:31:38,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35201 to 35201. [2022-07-20 03:31:38,922 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) [2022-07-20 03:31:39,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35201 states to 35201 states and 48298 transitions. [2022-07-20 03:31:39,194 INFO L78 Accepts]: Start accepts. Automaton has 35201 states and 48298 transitions. Word has length 183 [2022-07-20 03:31:39,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:31:39,195 INFO L495 AbstractCegarLoop]: Abstraction has 35201 states and 48298 transitions. [2022-07-20 03:31:39,195 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) [2022-07-20 03:31:39,195 INFO L276 IsEmpty]: Start isEmpty. Operand 35201 states and 48298 transitions. [2022-07-20 03:31:39,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-20 03:31:39,216 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:31:39,216 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] [2022-07-20 03:31:39,247 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-20 03:31:39,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:31:39,436 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)] === [2022-07-20 03:31:39,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:31:39,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1054026428, now seen corresponding path program 1 times [2022-07-20 03:31:39,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:31:39,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1193086091] [2022-07-20 03:31:39,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:31:39,438 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:31:39,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:31:39,439 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) [2022-07-20 03:31:39,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-20 03:31:40,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:31:40,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 1254 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 03:31:40,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:31:41,114 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-20 03:31:41,115 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:31:41,115 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:31:41,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1193086091] [2022-07-20 03:31:41,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1193086091] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:31:41,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:31:41,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 03:31:41,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684102886] [2022-07-20 03:31:41,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:31:41,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 03:31:41,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:31:41,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 03:31:41,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:31:41,118 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) [2022-07-20 03:31:42,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:31:42,135 INFO L93 Difference]: Finished difference Result 70325 states and 96505 transitions. [2022-07-20 03:31:42,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 03:31:42,136 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 [2022-07-20 03:31:42,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:31:42,315 INFO L225 Difference]: With dead ends: 70325 [2022-07-20 03:31:42,315 INFO L226 Difference]: Without dead ends: 35201 [2022-07-20 03:31:42,446 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 [2022-07-20 03:31:42,449 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 [2022-07-20 03:31:42,449 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] [2022-07-20 03:31:42,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35201 states. [2022-07-20 03:31:43,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35201 to 35201. [2022-07-20 03:31:43,556 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) [2022-07-20 03:31:43,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35201 states to 35201 states and 48266 transitions. [2022-07-20 03:31:43,670 INFO L78 Accepts]: Start accepts. Automaton has 35201 states and 48266 transitions. Word has length 183 [2022-07-20 03:31:43,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:31:43,671 INFO L495 AbstractCegarLoop]: Abstraction has 35201 states and 48266 transitions. [2022-07-20 03:31:43,671 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) [2022-07-20 03:31:43,672 INFO L276 IsEmpty]: Start isEmpty. Operand 35201 states and 48266 transitions. [2022-07-20 03:31:43,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-20 03:31:43,673 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:31:43,673 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] [2022-07-20 03:31:43,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-20 03:31:43,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:31:43,874 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)] === [2022-07-20 03:31:43,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:31:43,875 INFO L85 PathProgramCache]: Analyzing trace with hash 2007966586, now seen corresponding path program 1 times [2022-07-20 03:31:43,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:31:43,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [570407556] [2022-07-20 03:31:43,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:31:43,877 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:31:43,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:31:43,878 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) [2022-07-20 03:31:43,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-20 03:31:44,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:31:44,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 1253 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 03:31:44,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:31:45,362 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-20 03:31:45,363 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:31:45,363 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:31:45,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [570407556] [2022-07-20 03:31:45,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [570407556] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:31:45,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:31:45,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 03:31:45,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798889417] [2022-07-20 03:31:45,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:31:45,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 03:31:45,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:31:45,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 03:31:45,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:31:45,365 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) [2022-07-20 03:31:46,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:31:46,607 INFO L93 Difference]: Finished difference Result 70293 states and 96409 transitions. [2022-07-20 03:31:46,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 03:31:46,608 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 [2022-07-20 03:31:46,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:31:46,772 INFO L225 Difference]: With dead ends: 70293 [2022-07-20 03:31:46,772 INFO L226 Difference]: Without dead ends: 35169 [2022-07-20 03:31:46,857 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 [2022-07-20 03:31:46,858 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 [2022-07-20 03:31:46,858 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] [2022-07-20 03:31:46,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35169 states. [2022-07-20 03:31:47,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35169 to 35169. [2022-07-20 03:31:47,805 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) [2022-07-20 03:31:48,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35169 states to 35169 states and 48074 transitions. [2022-07-20 03:31:48,068 INFO L78 Accepts]: Start accepts. Automaton has 35169 states and 48074 transitions. Word has length 183 [2022-07-20 03:31:48,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:31:48,069 INFO L495 AbstractCegarLoop]: Abstraction has 35169 states and 48074 transitions. [2022-07-20 03:31:48,069 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) [2022-07-20 03:31:48,070 INFO L276 IsEmpty]: Start isEmpty. Operand 35169 states and 48074 transitions. [2022-07-20 03:31:48,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-20 03:31:48,072 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:31:48,072 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] [2022-07-20 03:31:48,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-20 03:31:48,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:31:48,291 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)] === [2022-07-20 03:31:48,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:31:48,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1700673724, now seen corresponding path program 1 times [2022-07-20 03:31:48,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:31:48,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [24624451] [2022-07-20 03:31:48,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:31:48,293 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:31:48,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:31:48,294 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) [2022-07-20 03:31:48,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-20 03:31:49,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:31:49,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 1257 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 03:31:49,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:31:50,094 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-20 03:31:50,094 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:31:50,095 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:31:50,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [24624451] [2022-07-20 03:31:50,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [24624451] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:31:50,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:31:50,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 03:31:50,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278176277] [2022-07-20 03:31:50,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:31:50,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 03:31:50,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:31:50,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 03:31:50,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:31:50,096 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) [2022-07-20 03:31:51,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:31:51,283 INFO L93 Difference]: Finished difference Result 69973 states and 95753 transitions. [2022-07-20 03:31:51,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 03:31:51,284 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 [2022-07-20 03:31:51,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:31:51,502 INFO L225 Difference]: With dead ends: 69973 [2022-07-20 03:31:51,502 INFO L226 Difference]: Without dead ends: 34881 [2022-07-20 03:31:51,616 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 [2022-07-20 03:31:51,616 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 [2022-07-20 03:31:51,617 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] [2022-07-20 03:31:51,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34881 states. [2022-07-20 03:31:52,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34881 to 34881. [2022-07-20 03:31:52,875 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) [2022-07-20 03:31:52,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34881 states to 34881 states and 47562 transitions. [2022-07-20 03:31:52,993 INFO L78 Accepts]: Start accepts. Automaton has 34881 states and 47562 transitions. Word has length 187 [2022-07-20 03:31:52,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:31:52,993 INFO L495 AbstractCegarLoop]: Abstraction has 34881 states and 47562 transitions. [2022-07-20 03:31:52,994 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) [2022-07-20 03:31:52,994 INFO L276 IsEmpty]: Start isEmpty. Operand 34881 states and 47562 transitions. [2022-07-20 03:31:52,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-20 03:31:52,996 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:31:52,996 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] [2022-07-20 03:31:53,021 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-20 03:31:53,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:31:53,198 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)] === [2022-07-20 03:31:53,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:31:53,198 INFO L85 PathProgramCache]: Analyzing trace with hash 908113734, now seen corresponding path program 1 times [2022-07-20 03:31:53,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:31:53,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [88971287] [2022-07-20 03:31:53,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:31:53,199 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:31:53,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:31:53,200 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) [2022-07-20 03:31:53,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-20 03:31:54,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:31:54,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 1256 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 03:31:54,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:31:54,896 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-20 03:31:54,897 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:31:54,897 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:31:54,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [88971287] [2022-07-20 03:31:54,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [88971287] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:31:54,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:31:54,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 03:31:54,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315874500] [2022-07-20 03:31:54,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:31:54,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 03:31:54,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:31:54,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 03:31:54,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:31:54,900 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) [2022-07-20 03:31:56,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:31:56,297 INFO L93 Difference]: Finished difference Result 69685 states and 95161 transitions. [2022-07-20 03:31:56,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 03:31:56,298 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 [2022-07-20 03:31:56,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:31:56,439 INFO L225 Difference]: With dead ends: 69685 [2022-07-20 03:31:56,439 INFO L226 Difference]: Without dead ends: 34881 [2022-07-20 03:31:56,553 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 [2022-07-20 03:31:56,554 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 [2022-07-20 03:31:56,554 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] [2022-07-20 03:31:56,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34881 states. [2022-07-20 03:31:57,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34881 to 34881. [2022-07-20 03:31:57,889 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) [2022-07-20 03:31:57,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34881 states to 34881 states and 47506 transitions. [2022-07-20 03:31:58,004 INFO L78 Accepts]: Start accepts. Automaton has 34881 states and 47506 transitions. Word has length 187 [2022-07-20 03:31:58,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:31:58,004 INFO L495 AbstractCegarLoop]: Abstraction has 34881 states and 47506 transitions. [2022-07-20 03:31:58,004 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) [2022-07-20 03:31:58,005 INFO L276 IsEmpty]: Start isEmpty. Operand 34881 states and 47506 transitions. [2022-07-20 03:31:58,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-20 03:31:58,006 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:31:58,007 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] [2022-07-20 03:31:58,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-20 03:31:58,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:31:58,208 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)] === [2022-07-20 03:31:58,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:31:58,208 INFO L85 PathProgramCache]: Analyzing trace with hash 853720836, now seen corresponding path program 1 times [2022-07-20 03:31:58,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:31:58,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [715914978] [2022-07-20 03:31:58,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:31:58,210 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:31:58,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:31:58,211 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) [2022-07-20 03:31:58,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-20 03:31:59,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:31:59,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 03:31:59,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:31:59,911 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-20 03:31:59,911 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:31:59,912 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:31:59,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [715914978] [2022-07-20 03:31:59,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [715914978] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:31:59,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:31:59,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 03:31:59,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636214706] [2022-07-20 03:31:59,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:31:59,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 03:31:59,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:31:59,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 03:31:59,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:31:59,914 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) [2022-07-20 03:32:01,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:32:01,005 INFO L93 Difference]: Finished difference Result 69637 states and 95001 transitions. [2022-07-20 03:32:01,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 03:32:01,006 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 [2022-07-20 03:32:01,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:32:01,161 INFO L225 Difference]: With dead ends: 69637 [2022-07-20 03:32:01,161 INFO L226 Difference]: Without dead ends: 34833 [2022-07-20 03:32:01,456 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 [2022-07-20 03:32:01,457 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 [2022-07-20 03:32:01,457 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] [2022-07-20 03:32:01,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34833 states. [2022-07-20 03:32:02,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34833 to 34833. [2022-07-20 03:32:02,663 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) [2022-07-20 03:32:02,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34833 states to 34833 states and 47402 transitions. [2022-07-20 03:32:02,782 INFO L78 Accepts]: Start accepts. Automaton has 34833 states and 47402 transitions. Word has length 187 [2022-07-20 03:32:02,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:32:02,782 INFO L495 AbstractCegarLoop]: Abstraction has 34833 states and 47402 transitions. [2022-07-20 03:32:02,782 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) [2022-07-20 03:32:02,783 INFO L276 IsEmpty]: Start isEmpty. Operand 34833 states and 47402 transitions. [2022-07-20 03:32:02,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-20 03:32:02,784 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:32:02,784 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] [2022-07-20 03:32:02,806 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2022-07-20 03:32:02,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:32:02,985 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)] === [2022-07-20 03:32:02,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:32:02,985 INFO L85 PathProgramCache]: Analyzing trace with hash 436324230, now seen corresponding path program 1 times [2022-07-20 03:32:02,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:32:02,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [822722999] [2022-07-20 03:32:02,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:32:02,987 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:32:02,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:32:02,988 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) [2022-07-20 03:32:02,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-20 03:32:03,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:32:04,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 1254 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 03:32:04,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:32:04,880 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-20 03:32:04,880 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:32:04,880 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:32:04,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [822722999] [2022-07-20 03:32:04,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [822722999] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:32:04,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:32:04,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 03:32:04,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066819750] [2022-07-20 03:32:04,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:32:04,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 03:32:04,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:32:04,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 03:32:04,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:32:04,883 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) [2022-07-20 03:32:07,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:32:07,338 INFO L93 Difference]: Finished difference Result 103505 states and 141056 transitions. [2022-07-20 03:32:07,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 03:32:07,339 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 [2022-07-20 03:32:07,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:32:07,634 INFO L225 Difference]: With dead ends: 103505 [2022-07-20 03:32:07,635 INFO L226 Difference]: Without dead ends: 68749 [2022-07-20 03:32:07,754 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 [2022-07-20 03:32:07,755 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 [2022-07-20 03:32:07,755 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] [2022-07-20 03:32:07,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68749 states. [2022-07-20 03:32:10,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68749 to 68723. [2022-07-20 03:32:10,444 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) [2022-07-20 03:32:10,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68723 states to 68723 states and 93502 transitions. [2022-07-20 03:32:10,730 INFO L78 Accepts]: Start accepts. Automaton has 68723 states and 93502 transitions. Word has length 187 [2022-07-20 03:32:10,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:32:10,731 INFO L495 AbstractCegarLoop]: Abstraction has 68723 states and 93502 transitions. [2022-07-20 03:32:10,731 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) [2022-07-20 03:32:10,731 INFO L276 IsEmpty]: Start isEmpty. Operand 68723 states and 93502 transitions. [2022-07-20 03:32:10,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-20 03:32:10,733 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:32:10,733 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] [2022-07-20 03:32:10,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-20 03:32:10,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:32:10,948 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)] === [2022-07-20 03:32:10,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:32:10,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1115596484, now seen corresponding path program 1 times [2022-07-20 03:32:10,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:32:10,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [854704507] [2022-07-20 03:32:10,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:32:10,949 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:32:10,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:32:10,951 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) [2022-07-20 03:32:10,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-20 03:32:11,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:32:11,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 1253 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 03:32:11,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:32:12,035 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-07-20 03:32:12,035 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:32:12,035 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:32:12,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [854704507] [2022-07-20 03:32:12,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [854704507] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:32:12,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:32:12,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 03:32:12,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287359329] [2022-07-20 03:32:12,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:32:12,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 03:32:12,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:32:12,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 03:32:12,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:32:12,037 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) [2022-07-20 03:32:16,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:32:16,897 INFO L93 Difference]: Finished difference Result 201225 states and 274179 transitions. [2022-07-20 03:32:16,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 03:32:16,898 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 [2022-07-20 03:32:16,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:32:17,571 INFO L225 Difference]: With dead ends: 201225 [2022-07-20 03:32:17,572 INFO L226 Difference]: Without dead ends: 132579 [2022-07-20 03:32:17,846 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 [2022-07-20 03:32:17,847 INFO L413 NwaCegarLoop]: 3226 mSDtfsCounter, 2151 mSDsluCounter, 2292 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-07-20 03:32:17,847 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] [2022-07-20 03:32:17,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132579 states.