./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.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 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 02:38:29,442 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 02:38:29,444 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 02:38:29,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 02:38:29,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 02:38:29,471 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 02:38:29,472 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 02:38:29,480 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 02:38:29,482 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 02:38:29,483 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 02:38:29,483 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 02:38:29,484 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 02:38:29,487 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 02:38:29,488 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 02:38:29,489 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 02:38:29,490 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 02:38:29,493 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 02:38:29,494 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 02:38:29,495 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 02:38:29,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 02:38:29,503 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 02:38:29,506 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 02:38:29,507 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 02:38:29,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 02:38:29,511 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 02:38:29,513 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 02:38:29,518 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 02:38:29,519 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 02:38:29,520 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 02:38:29,520 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 02:38:29,521 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 02:38:29,522 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 02:38:29,523 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 02:38:29,524 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 02:38:29,525 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 02:38:29,525 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 02:38:29,528 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 02:38:29,529 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 02:38:29,529 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 02:38:29,530 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 02:38:29,531 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 02:38:29,532 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 02:38:29,534 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 02:38:29,562 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 02:38:29,563 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 02:38:29,563 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 02:38:29,563 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 02:38:29,564 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 02:38:29,564 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 02:38:29,565 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 02:38:29,565 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 02:38:29,565 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 02:38:29,566 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 02:38:29,566 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 02:38:29,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 02:38:29,566 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 02:38:29,567 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 02:38:29,567 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 02:38:29,567 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 02:38:29,567 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 02:38:29,567 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 02:38:29,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 02:38:29,568 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 02:38:29,568 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 02:38:29,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 02:38:29,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 02:38:29,568 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 02:38:29,569 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 02:38:29,569 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 02:38:29,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 02:38:29,569 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 02:38:29,569 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 02:38:29,569 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 02:38:29,570 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 [2022-07-23 02:38:29,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 02:38:29,849 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 02:38:29,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 02:38:29,853 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 02:38:29,854 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 02:38:29,856 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2022-07-23 02:38:29,919 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e01530155/7320166b21c84e6c9fd68a377984f0d5/FLAG1e80fd3a1 [2022-07-23 02:38:30,732 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 02:38:30,733 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2022-07-23 02:38:30,800 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e01530155/7320166b21c84e6c9fd68a377984f0d5/FLAG1e80fd3a1 [2022-07-23 02:38:30,910 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e01530155/7320166b21c84e6c9fd68a377984f0d5 [2022-07-23 02:38:30,913 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 02:38:30,915 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 02:38:30,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 02:38:30,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 02:38:30,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 02:38:30,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:38:30" (1/1) ... [2022-07-23 02:38:30,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b287614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:38:30, skipping insertion in model container [2022-07-23 02:38:30,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:38:30" (1/1) ... [2022-07-23 02:38:30,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 02:38:31,050 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 02:38:34,202 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[347848,347861] [2022-07-23 02:38:34,211 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348017,348030] [2022-07-23 02:38:34,213 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348184,348197] [2022-07-23 02:38:34,213 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348352,348365] [2022-07-23 02:38:34,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 02:38:34,314 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 02:38:34,557 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: clkctl = (unsigned int )clkctl & 127U [8537] 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) [2022-07-23 02:38:34,567 INFO L158 Benchmark]: Toolchain (without parser) took 3650.89ms. Allocated memory was 107.0MB in the beginning and 159.4MB in the end (delta: 52.4MB). Free memory was 80.0MB in the beginning and 89.9MB in the end (delta: -9.8MB). Peak memory consumption was 78.6MB. Max. memory is 16.1GB. [2022-07-23 02:38:34,568 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 88.1MB. Free memory is still 42.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 02:38:34,569 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3648.93ms. Allocated memory was 107.0MB in the beginning and 159.4MB in the end (delta: 52.4MB). Free memory was 80.0MB in the beginning and 89.9MB in the end (delta: -9.8MB). Peak memory consumption was 78.6MB. Max. memory is 16.1GB. [2022-07-23 02:38:34,571 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 88.1MB. Free memory is still 42.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3648.93ms. Allocated memory was 107.0MB in the beginning and 159.4MB in the end (delta: 52.4MB). Free memory was 80.0MB in the beginning and 89.9MB in the end (delta: -9.8MB). Peak memory consumption was 78.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: clkctl = (unsigned int )clkctl & 127U [8537] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: clkctl = (unsigned int )clkctl & 127U [8537]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.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 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 02:38:36,425 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 02:38:36,427 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 02:38:36,463 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 02:38:36,463 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 02:38:36,465 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 02:38:36,469 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 02:38:36,472 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 02:38:36,474 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 02:38:36,487 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 02:38:36,488 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 02:38:36,493 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 02:38:36,494 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 02:38:36,496 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 02:38:36,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 02:38:36,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 02:38:36,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 02:38:36,502 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 02:38:36,506 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 02:38:36,512 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 02:38:36,514 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 02:38:36,515 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 02:38:36,517 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 02:38:36,518 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 02:38:36,520 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 02:38:36,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 02:38:36,525 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 02:38:36,526 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 02:38:36,527 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 02:38:36,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 02:38:36,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 02:38:36,529 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 02:38:36,530 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 02:38:36,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 02:38:36,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 02:38:36,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 02:38:36,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 02:38:36,534 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 02:38:36,534 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 02:38:36,535 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 02:38:36,535 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 02:38:36,537 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 02:38:36,542 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-23 02:38:36,583 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 02:38:36,584 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 02:38:36,584 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 02:38:36,585 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 02:38:36,586 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 02:38:36,586 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 02:38:36,587 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 02:38:36,587 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 02:38:36,587 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 02:38:36,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 02:38:36,589 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 02:38:36,589 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 02:38:36,589 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 02:38:36,589 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 02:38:36,589 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-23 02:38:36,590 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-23 02:38:36,590 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-23 02:38:36,590 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 02:38:36,590 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 02:38:36,590 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 02:38:36,591 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 02:38:36,591 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 02:38:36,591 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 02:38:36,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 02:38:36,591 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 02:38:36,592 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 02:38:36,592 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 02:38:36,592 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-23 02:38:36,592 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-23 02:38:36,592 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 02:38:36,593 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 02:38:36,593 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 02:38:36,593 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-23 02:38:36,593 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 [2022-07-23 02:38:36,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 02:38:36,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 02:38:36,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 02:38:36,937 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 02:38:36,937 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 02:38:36,939 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2022-07-23 02:38:36,999 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e88c2327/4822bd562144465d923b71c777237f9f/FLAGdef542c16 [2022-07-23 02:38:37,880 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 02:38:37,880 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2022-07-23 02:38:37,931 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e88c2327/4822bd562144465d923b71c777237f9f/FLAGdef542c16 [2022-07-23 02:38:38,371 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e88c2327/4822bd562144465d923b71c777237f9f [2022-07-23 02:38:38,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 02:38:38,375 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 02:38:38,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 02:38:38,378 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 02:38:38,382 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 02:38:38,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:38:38" (1/1) ... [2022-07-23 02:38:38,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6182c055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:38:38, skipping insertion in model container [2022-07-23 02:38:38,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:38:38" (1/1) ... [2022-07-23 02:38:38,390 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 02:38:38,556 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 02:38:42,119 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[347848,347861] [2022-07-23 02:38:42,126 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348017,348030] [2022-07-23 02:38:42,127 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348184,348197] [2022-07-23 02:38:42,127 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348352,348365] [2022-07-23 02:38:42,150 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 02:38:42,180 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-23 02:38:42,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 02:38:42,603 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[347848,347861] [2022-07-23 02:38:42,603 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348017,348030] [2022-07-23 02:38:42,604 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348184,348197] [2022-07-23 02:38:42,604 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348352,348365] [2022-07-23 02:38:42,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 02:38:42,634 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 02:38:43,072 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[347848,347861] [2022-07-23 02:38:43,073 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348017,348030] [2022-07-23 02:38:43,074 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348184,348197] [2022-07-23 02:38:43,074 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348352,348365] [2022-07-23 02:38:43,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 02:38:43,244 INFO L208 MainTranslator]: Completed translation [2022-07-23 02:38:43,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:38:43 WrapperNode [2022-07-23 02:38:43,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 02:38:43,246 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 02:38:43,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 02:38:43,247 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 02:38:43,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:38:43" (1/1) ... [2022-07-23 02:38:43,347 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:38:43" (1/1) ... [2022-07-23 02:38:43,521 INFO L137 Inliner]: procedures = 465, calls = 2209, calls flagged for inlining = 206, calls inlined = 184, statements flattened = 4937 [2022-07-23 02:38:43,522 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 02:38:43,523 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 02:38:43,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 02:38:43,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 02:38:43,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:38:43" (1/1) ... [2022-07-23 02:38:43,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:38:43" (1/1) ... [2022-07-23 02:38:43,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:38:43" (1/1) ... [2022-07-23 02:38:43,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:38:43" (1/1) ... [2022-07-23 02:38:43,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:38:43" (1/1) ... [2022-07-23 02:38:43,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:38:43" (1/1) ... [2022-07-23 02:38:43,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:38:43" (1/1) ... [2022-07-23 02:38:43,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 02:38:43,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 02:38:43,781 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 02:38:43,781 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 02:38:43,782 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:38:43" (1/1) ... [2022-07-23 02:38:43,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 02:38:43,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 02:38:43,813 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-23 02:38:43,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-23 02:38:43,855 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-23 02:38:43,856 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-23 02:38:43,856 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-23 02:38:43,856 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-23 02:38:43,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-23 02:38:43,856 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-23 02:38:43,857 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-23 02:38:43,857 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-23 02:38:43,857 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_count [2022-07-23 02:38:43,857 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_count [2022-07-23 02:38:43,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 02:38:43,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 02:38:43,858 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_status [2022-07-23 02:38:43,858 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_status [2022-07-23 02:38:43,858 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-23 02:38:43,858 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-23 02:38:43,858 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2022-07-23 02:38:43,859 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2022-07-23 02:38:43,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-23 02:38:43,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-23 02:38:43,859 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_ring_debug [2022-07-23 02:38:43,860 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_ring_debug [2022-07-23 02:38:43,860 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-23 02:38:43,860 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-23 02:38:43,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_65 [2022-07-23 02:38:43,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_65 [2022-07-23 02:38:43,860 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-23 02:38:43,861 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-23 02:38:43,861 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_close [2022-07-23 02:38:43,861 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_close [2022-07-23 02:38:43,861 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_irda_resume [2022-07-23 02:38:43,861 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_irda_resume [2022-07-23 02:38:43,861 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-23 02:38:43,861 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-23 02:38:43,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-23 02:38:43,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-23 02:38:43,862 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2022-07-23 02:38:43,862 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2022-07-23 02:38:43,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-23 02:38:43,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-23 02:38:43,863 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_free_ring [2022-07-23 02:38:43,864 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_free_ring [2022-07-23 02:38:43,864 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-23 02:38:43,865 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-23 02:38:43,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 02:38:43,865 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2022-07-23 02:38:43,865 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2022-07-23 02:38:43,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-23 02:38:43,865 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-07-23 02:38:43,866 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-07-23 02:38:43,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-23 02:38:43,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-23 02:38:43,866 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-23 02:38:43,866 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-23 02:38:43,866 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_tx_timeout [2022-07-23 02:38:43,867 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_tx_timeout [2022-07-23 02:38:43,867 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-23 02:38:43,867 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-23 02:38:43,867 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_destroy_hwif [2022-07-23 02:38:43,867 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_destroy_hwif [2022-07-23 02:38:43,868 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-23 02:38:43,868 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-23 02:38:43,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-23 02:38:43,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-23 02:38:43,869 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_stop_hw [2022-07-23 02:38:43,869 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_stop_hw [2022-07-23 02:38:43,869 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-23 02:38:43,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-23 02:38:43,869 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_irda_remove [2022-07-23 02:38:43,869 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_irda_remove [2022-07-23 02:38:43,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-23 02:38:43,870 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-23 02:38:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-23 02:38:43,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-23 02:38:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-07-23 02:38:43,870 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-07-23 02:38:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_clear_regs [2022-07-23 02:38:43,871 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_clear_regs [2022-07-23 02:38:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-23 02:38:43,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-23 02:38:43,872 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-23 02:38:43,872 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-23 02:38:43,872 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_start_hw [2022-07-23 02:38:43,872 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_start_hw [2022-07-23 02:38:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-23 02:38:43,873 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-23 02:38:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-23 02:38:43,873 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-23 02:38:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure rd_activate [2022-07-23 02:38:43,873 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_activate [2022-07-23 02:38:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure rd_is_active [2022-07-23 02:38:43,874 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_is_active [2022-07-23 02:38:43,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-23 02:38:43,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-23 02:38:43,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 02:38:43,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-23 02:38:43,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-23 02:38:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_count [2022-07-23 02:38:43,875 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_count [2022-07-23 02:38:43,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-07-23 02:38:43,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-07-23 02:38:43,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 02:38:43,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-23 02:38:43,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-23 02:38:43,879 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-23 02:38:43,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-23 02:38:43,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 02:38:43,880 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-23 02:38:43,881 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_open [2022-07-23 02:38:43,881 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_open [2022-07-23 02:38:43,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-23 02:38:43,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-23 02:38:43,887 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-23 02:38:43,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-23 02:38:43,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-23 02:38:43,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_vlsi_mod_exit_11_2 [2022-07-23 02:38:43,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_vlsi_mod_exit_11_2 [2022-07-23 02:38:43,888 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-23 02:38:43,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-23 02:38:43,888 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-23 02:38:43,888 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-23 02:38:43,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-23 02:38:43,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-23 02:38:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_reg_debug [2022-07-23 02:38:43,889 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_reg_debug [2022-07-23 02:38:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-23 02:38:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_set_baud [2022-07-23 02:38:43,889 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_set_baud [2022-07-23 02:38:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 02:38:43,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 02:38:43,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-23 02:38:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-23 02:38:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-23 02:38:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-23 02:38:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-23 02:38:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-23 02:38:43,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 02:38:43,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 02:38:43,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-23 02:38:43,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-23 02:38:43,891 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-07-23 02:38:43,891 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-07-23 02:38:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2022-07-23 02:38:43,892 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2022-07-23 02:38:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_status [2022-07-23 02:38:43,892 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_status [2022-07-23 02:38:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-23 02:38:43,892 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-23 02:38:43,892 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-23 02:38:43,892 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-23 02:38:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-23 02:38:43,893 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-23 02:38:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-23 02:38:43,893 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-23 02:38:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure ring_get [2022-07-23 02:38:43,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_get [2022-07-23 02:38:43,893 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-23 02:38:43,894 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-23 02:38:43,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 02:38:43,894 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-23 02:38:43,894 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-23 02:38:43,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 02:38:43,894 INFO L130 BoogieDeclarations]: Found specification of procedure ring_last [2022-07-23 02:38:43,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_last [2022-07-23 02:38:43,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-23 02:38:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-23 02:38:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-23 02:38:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-23 02:38:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure ring_put [2022-07-23 02:38:43,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_put [2022-07-23 02:38:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 02:38:43,895 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-07-23 02:38:43,896 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-07-23 02:38:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure do_gettimeofday [2022-07-23 02:38:43,896 INFO L138 BoogieDeclarations]: Found implementation of procedure do_gettimeofday [2022-07-23 02:38:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-07-23 02:38:43,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-07-23 02:38:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-07-23 02:38:43,896 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-07-23 02:38:43,896 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-23 02:38:43,897 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-23 02:38:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-23 02:38:43,897 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-23 02:38:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-23 02:38:43,897 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-23 02:38:43,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-23 02:38:43,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-23 02:38:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-07-23 02:38:43,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-07-23 02:38:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_addr_status [2022-07-23 02:38:43,898 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_addr_status [2022-07-23 02:38:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_addr [2022-07-23 02:38:43,898 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_addr [2022-07-23 02:38:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-23 02:38:43,899 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-23 02:38:43,899 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-23 02:38:43,899 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-23 02:38:43,899 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-23 02:38:43,899 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-23 02:38:43,899 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-23 02:38:43,899 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-23 02:38:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-23 02:38:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-07-23 02:38:43,900 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-07-23 02:38:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-23 02:38:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-23 02:38:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-23 02:38:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-23 02:38:43,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-23 02:38:43,901 INFO L130 BoogieDeclarations]: Found specification of procedure irlap_close [2022-07-23 02:38:43,901 INFO L138 BoogieDeclarations]: Found implementation of procedure irlap_close [2022-07-23 02:38:43,901 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-23 02:38:43,901 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-23 02:38:43,901 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-23 02:38:43,901 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-23 02:38:43,901 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_process_tx [2022-07-23 02:38:43,902 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_process_tx [2022-07-23 02:38:43,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-23 02:38:43,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-23 02:38:43,902 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_alloc_ring [2022-07-23 02:38:43,902 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_alloc_ring [2022-07-23 02:38:43,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_vlsi_irda_dev [2022-07-23 02:38:43,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_vlsi_irda_dev [2022-07-23 02:38:43,903 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_fill_rx [2022-07-23 02:38:43,903 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_fill_rx [2022-07-23 02:38:43,903 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-23 02:38:43,903 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-23 02:38:43,903 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_process_rx [2022-07-23 02:38:43,903 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_process_rx [2022-07-23 02:38:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-23 02:38:43,907 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-23 02:38:43,907 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-07-23 02:38:43,907 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-07-23 02:38:43,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-23 02:38:43,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-23 02:38:43,908 INFO L130 BoogieDeclarations]: Found specification of procedure ring_first [2022-07-23 02:38:43,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_first [2022-07-23 02:38:43,908 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-07-23 02:38:43,908 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-07-23 02:38:44,869 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 02:38:44,875 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 02:38:46,844 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 02:39:06,601 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-23 02:39:06,644 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 02:39:06,665 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 02:39:06,665 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-23 02:39:06,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:39:06 BoogieIcfgContainer [2022-07-23 02:39:06,671 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 02:39:06,672 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 02:39:06,673 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 02:39:06,675 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 02:39:06,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 02:38:38" (1/3) ... [2022-07-23 02:39:06,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d75d0c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 02:39:06, skipping insertion in model container [2022-07-23 02:39:06,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:38:43" (2/3) ... [2022-07-23 02:39:06,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d75d0c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 02:39:06, skipping insertion in model container [2022-07-23 02:39:06,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:39:06" (3/3) ... [2022-07-23 02:39:06,678 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2022-07-23 02:39:06,692 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 02:39:06,692 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-23 02:39:06,790 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 02:39:06,795 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@371fe324, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@38954553 [2022-07-23 02:39:06,795 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-23 02:39:06,805 INFO L276 IsEmpty]: Start isEmpty. Operand has 1886 states, 1268 states have (on average 1.2854889589905363) internal successors, (1630), 1294 states have internal predecessors, (1630), 512 states have call successors, (512), 104 states have call predecessors, (512), 103 states have return successors, (505), 502 states have call predecessors, (505), 505 states have call successors, (505) [2022-07-23 02:39:06,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-07-23 02:39:06,821 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:39:06,821 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:39:06,822 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:39:06,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:39:06,826 INFO L85 PathProgramCache]: Analyzing trace with hash -2147203978, now seen corresponding path program 1 times [2022-07-23 02:39:06,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:39:06,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1317293343] [2022-07-23 02:39:06,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:39:06,844 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:39:06,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:39:06,846 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:39:06,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-23 02:39:07,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:08,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 1593 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 02:39:08,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:39:08,276 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2022-07-23 02:39:08,276 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 02:39:08,277 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:39:08,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1317293343] [2022-07-23 02:39:08,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1317293343] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:39:08,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:39:08,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 02:39:08,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509568100] [2022-07-23 02:39:08,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:39:08,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 02:39:08,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:39:08,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 02:39:08,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:39:08,314 INFO L87 Difference]: Start difference. First operand has 1886 states, 1268 states have (on average 1.2854889589905363) internal successors, (1630), 1294 states have internal predecessors, (1630), 512 states have call successors, (512), 104 states have call predecessors, (512), 103 states have return successors, (505), 502 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-23 02:39:10,489 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 02:39:10,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:39:10,913 INFO L93 Difference]: Finished difference Result 5475 states and 7807 transitions. [2022-07-23 02:39:10,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 02:39:10,916 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 149 [2022-07-23 02:39:10,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:39:10,968 INFO L225 Difference]: With dead ends: 5475 [2022-07-23 02:39:10,968 INFO L226 Difference]: Without dead ends: 3605 [2022-07-23 02:39:10,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:39:10,997 INFO L413 NwaCegarLoop]: 3096 mSDtfsCounter, 2484 mSDsluCounter, 2534 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2484 SdHoareTripleChecker+Valid, 5630 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-23 02:39:11,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2484 Valid, 5630 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 26 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-07-23 02:39:11,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3605 states. [2022-07-23 02:39:11,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3605 to 3601. [2022-07-23 02:39:11,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3601 states, 2435 states have (on average 1.2739219712525667) internal successors, (3102), 2484 states have internal predecessors, (3102), 961 states have call successors, (961), 203 states have call predecessors, (961), 202 states have return successors, (957), 951 states have call predecessors, (957), 957 states have call successors, (957) [2022-07-23 02:39:11,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3601 states to 3601 states and 5020 transitions. [2022-07-23 02:39:11,293 INFO L78 Accepts]: Start accepts. Automaton has 3601 states and 5020 transitions. Word has length 149 [2022-07-23 02:39:11,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:39:11,296 INFO L495 AbstractCegarLoop]: Abstraction has 3601 states and 5020 transitions. [2022-07-23 02:39:11,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-23 02:39:11,296 INFO L276 IsEmpty]: Start isEmpty. Operand 3601 states and 5020 transitions. [2022-07-23 02:39:11,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-07-23 02:39:11,306 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:39:11,307 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:39:11,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-23 02:39:11,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:39:11,532 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:39:11,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:39:11,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1243014584, now seen corresponding path program 1 times [2022-07-23 02:39:11,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:39:11,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1100410946] [2022-07-23 02:39:11,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:39:11,535 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:39:11,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:39:11,537 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:39:11,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-23 02:39:12,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:12,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 1626 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 02:39:12,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:39:12,901 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2022-07-23 02:39:12,901 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 02:39:12,902 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:39:12,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1100410946] [2022-07-23 02:39:12,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1100410946] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:39:12,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:39:12,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 02:39:12,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737766137] [2022-07-23 02:39:12,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:39:12,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 02:39:12,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:39:12,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 02:39:12,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:39:12,904 INFO L87 Difference]: Start difference. First operand 3601 states and 5020 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, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-23 02:39:15,030 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 02:39:15,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:39:15,416 INFO L93 Difference]: Finished difference Result 10433 states and 14518 transitions. [2022-07-23 02:39:15,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 02:39:15,417 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, (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 150 [2022-07-23 02:39:15,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:39:15,481 INFO L225 Difference]: With dead ends: 10433 [2022-07-23 02:39:15,481 INFO L226 Difference]: Without dead ends: 6859 [2022-07-23 02:39:15,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:39:15,504 INFO L413 NwaCegarLoop]: 3308 mSDtfsCounter, 2374 mSDsluCounter, 2538 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2374 SdHoareTripleChecker+Valid, 5846 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-23 02:39:15,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2374 Valid, 5846 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 14 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-07-23 02:39:15,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6859 states. [2022-07-23 02:39:15,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6859 to 6829. [2022-07-23 02:39:15,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6829 states, 4632 states have (on average 1.270509499136442) internal successors, (5885), 4730 states have internal predecessors, (5885), 1797 states have call successors, (1797), 402 states have call predecessors, (1797), 397 states have return successors, (1807), 1768 states have call predecessors, (1807), 1793 states have call successors, (1807) [2022-07-23 02:39:15,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6829 states to 6829 states and 9489 transitions. [2022-07-23 02:39:15,796 INFO L78 Accepts]: Start accepts. Automaton has 6829 states and 9489 transitions. Word has length 150 [2022-07-23 02:39:15,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:39:15,797 INFO L495 AbstractCegarLoop]: Abstraction has 6829 states and 9489 transitions. [2022-07-23 02:39:15,797 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, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-23 02:39:15,798 INFO L276 IsEmpty]: Start isEmpty. Operand 6829 states and 9489 transitions. [2022-07-23 02:39:15,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-07-23 02:39:15,801 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:39:15,801 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:39:15,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-23 02:39:16,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:39:16,024 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:39:16,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:39:16,024 INFO L85 PathProgramCache]: Analyzing trace with hash 645334117, now seen corresponding path program 1 times [2022-07-23 02:39:16,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:39:16,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1556430300] [2022-07-23 02:39:16,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:39:16,026 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:39:16,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:39:16,027 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:39:16,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-23 02:39:16,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:17,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 1644 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 02:39:17,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:39:17,171 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2022-07-23 02:39:17,171 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 02:39:17,172 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:39:17,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1556430300] [2022-07-23 02:39:17,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1556430300] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:39:17,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:39:17,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 02:39:17,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737330487] [2022-07-23 02:39:17,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:39:17,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 02:39:17,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:39:17,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 02:39:17,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:39:17,173 INFO L87 Difference]: Start difference. First operand 6829 states and 9489 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-23 02:39:19,293 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 02:39:19,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:39:19,952 INFO L93 Difference]: Finished difference Result 19759 states and 27353 transitions. [2022-07-23 02:39:19,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 02:39:19,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 158 [2022-07-23 02:39:19,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:39:20,061 INFO L225 Difference]: With dead ends: 19759 [2022-07-23 02:39:20,062 INFO L226 Difference]: Without dead ends: 12957 [2022-07-23 02:39:20,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:39:20,109 INFO L413 NwaCegarLoop]: 3059 mSDtfsCounter, 2316 mSDsluCounter, 2549 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2316 SdHoareTripleChecker+Valid, 5608 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-23 02:39:20,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2316 Valid, 5608 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 29 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-07-23 02:39:20,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12957 states. [2022-07-23 02:39:20,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12957 to 12925. [2022-07-23 02:39:20,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12925 states, 8776 states have (on average 1.2640154968094803) internal successors, (11093), 8950 states have internal predecessors, (11093), 3359 states have call successors, (3359), 796 states have call predecessors, (3359), 787 states have return successors, (3389), 3296 states have call predecessors, (3389), 3355 states have call successors, (3389) [2022-07-23 02:39:20,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12925 states to 12925 states and 17841 transitions. [2022-07-23 02:39:20,742 INFO L78 Accepts]: Start accepts. Automaton has 12925 states and 17841 transitions. Word has length 158 [2022-07-23 02:39:20,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:39:20,743 INFO L495 AbstractCegarLoop]: Abstraction has 12925 states and 17841 transitions. [2022-07-23 02:39:20,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-23 02:39:20,745 INFO L276 IsEmpty]: Start isEmpty. Operand 12925 states and 17841 transitions. [2022-07-23 02:39:20,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-07-23 02:39:20,751 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:39:20,752 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:39:20,796 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-07-23 02:39:20,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:39:20,966 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:39:20,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:39:20,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1178511947, now seen corresponding path program 1 times [2022-07-23 02:39:20,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:39:20,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [620410039] [2022-07-23 02:39:20,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:39:20,969 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:39:20,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:39:20,971 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:39:20,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-23 02:39:22,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:22,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 1891 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 02:39:22,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:39:22,541 INFO L134 CoverageAnalysis]: Checked inductivity of 538 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2022-07-23 02:39:22,541 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 02:39:22,541 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:39:22,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [620410039] [2022-07-23 02:39:22,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [620410039] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:39:22,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:39:22,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 02:39:22,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43213642] [2022-07-23 02:39:22,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:39:22,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 02:39:22,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:39:22,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 02:39:22,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:39:22,544 INFO L87 Difference]: Start difference. First operand 12925 states and 17841 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-07-23 02:39:24,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 02:39:25,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:39:25,582 INFO L93 Difference]: Finished difference Result 23181 states and 31975 transitions. [2022-07-23 02:39:25,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 02:39:25,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 212 [2022-07-23 02:39:25,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:39:25,664 INFO L225 Difference]: With dead ends: 23181 [2022-07-23 02:39:25,664 INFO L226 Difference]: Without dead ends: 10283 [2022-07-23 02:39:25,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:39:25,734 INFO L413 NwaCegarLoop]: 3450 mSDtfsCounter, 1646 mSDsluCounter, 2539 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1646 SdHoareTripleChecker+Valid, 5989 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-23 02:39:25,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1646 Valid, 5989 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 66 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-07-23 02:39:25,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10283 states. [2022-07-23 02:39:26,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10283 to 10251. [2022-07-23 02:39:26,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10251 states, 6991 states have (on average 1.265913317122014) internal successors, (8850), 7140 states have internal predecessors, (8850), 2594 states have call successors, (2594), 672 states have call predecessors, (2594), 663 states have return successors, (2607), 2534 states have call predecessors, (2607), 2590 states have call successors, (2607) [2022-07-23 02:39:26,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10251 states to 10251 states and 14051 transitions. [2022-07-23 02:39:26,146 INFO L78 Accepts]: Start accepts. Automaton has 10251 states and 14051 transitions. Word has length 212 [2022-07-23 02:39:26,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:39:26,147 INFO L495 AbstractCegarLoop]: Abstraction has 10251 states and 14051 transitions. [2022-07-23 02:39:26,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-07-23 02:39:26,147 INFO L276 IsEmpty]: Start isEmpty. Operand 10251 states and 14051 transitions. [2022-07-23 02:39:26,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-07-23 02:39:26,152 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:39:26,152 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:39:26,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-23 02:39:26,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:39:26,367 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:39:26,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:39:26,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1257416363, now seen corresponding path program 1 times [2022-07-23 02:39:26,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:39:26,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1753826198] [2022-07-23 02:39:26,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:39:26,370 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:39:26,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:39:26,372 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:39:26,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-23 02:39:27,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:27,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 1667 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 02:39:27,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:39:28,758 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 535 trivial. 0 not checked. [2022-07-23 02:39:28,758 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 02:39:28,759 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:39:28,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1753826198] [2022-07-23 02:39:28,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1753826198] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:39:28,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:39:28,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 02:39:28,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501500667] [2022-07-23 02:39:28,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:39:28,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 02:39:28,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:39:28,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 02:39:28,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:39:28,760 INFO L87 Difference]: Start difference. First operand 10251 states and 14051 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-23 02:39:29,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:39:29,348 INFO L93 Difference]: Finished difference Result 29634 states and 40666 transitions. [2022-07-23 02:39:29,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 02:39:29,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 198 [2022-07-23 02:39:29,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:39:29,464 INFO L225 Difference]: With dead ends: 29634 [2022-07-23 02:39:29,465 INFO L226 Difference]: Without dead ends: 19570 [2022-07-23 02:39:29,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:39:29,517 INFO L413 NwaCegarLoop]: 3098 mSDtfsCounter, 2400 mSDsluCounter, 2566 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2400 SdHoareTripleChecker+Valid, 5664 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 02:39:29,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2400 Valid, 5664 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 02:39:29,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19570 states. [2022-07-23 02:39:30,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19570 to 19544. [2022-07-23 02:39:30,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19544 states, 13375 states have (on average 1.2657196261682242) internal successors, (16929), 13667 states have internal predecessors, (16929), 4878 states have call successors, (4878), 1317 states have call predecessors, (4878), 1288 states have return successors, (4936), 4741 states have call predecessors, (4936), 4874 states have call successors, (4936) [2022-07-23 02:39:30,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19544 states to 19544 states and 26743 transitions. [2022-07-23 02:39:30,285 INFO L78 Accepts]: Start accepts. Automaton has 19544 states and 26743 transitions. Word has length 198 [2022-07-23 02:39:30,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:39:30,287 INFO L495 AbstractCegarLoop]: Abstraction has 19544 states and 26743 transitions. [2022-07-23 02:39:30,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-23 02:39:30,287 INFO L276 IsEmpty]: Start isEmpty. Operand 19544 states and 26743 transitions. [2022-07-23 02:39:30,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-07-23 02:39:30,290 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:39:30,291 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:39:30,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-23 02:39:30,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:39:30,511 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:39:30,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:39:30,512 INFO L85 PathProgramCache]: Analyzing trace with hash -882447260, now seen corresponding path program 1 times [2022-07-23 02:39:30,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:39:30,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1857434893] [2022-07-23 02:39:30,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:39:30,514 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:39:30,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:39:30,516 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:39:30,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-23 02:39:31,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:31,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 1755 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 02:39:31,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:39:31,835 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 232 proven. 0 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2022-07-23 02:39:31,836 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 02:39:31,836 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:39:31,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1857434893] [2022-07-23 02:39:31,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1857434893] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:39:31,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:39:31,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 02:39:31,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198755126] [2022-07-23 02:39:31,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:39:31,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 02:39:31,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:39:31,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 02:39:31,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:39:31,838 INFO L87 Difference]: Start difference. First operand 19544 states and 26743 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-23 02:39:32,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:39:32,571 INFO L93 Difference]: Finished difference Result 39125 states and 53603 transitions. [2022-07-23 02:39:32,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 02:39:32,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 221 [2022-07-23 02:39:32,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:39:32,703 INFO L225 Difference]: With dead ends: 39125 [2022-07-23 02:39:32,703 INFO L226 Difference]: Without dead ends: 19768 [2022-07-23 02:39:32,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:39:32,781 INFO L413 NwaCegarLoop]: 2600 mSDtfsCounter, 18 mSDsluCounter, 2595 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 5195 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 02:39:32,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 5195 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 02:39:32,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19768 states. [2022-07-23 02:39:33,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19768 to 19720. [2022-07-23 02:39:33,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19720 states, 13535 states have (on average 1.2696712227558182) internal successors, (17185), 13827 states have internal predecessors, (17185), 4894 states have call successors, (4894), 1317 states have call predecessors, (4894), 1288 states have return successors, (4952), 4757 states have call predecessors, (4952), 4890 states have call successors, (4952) [2022-07-23 02:39:33,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19720 states to 19720 states and 27031 transitions. [2022-07-23 02:39:33,712 INFO L78 Accepts]: Start accepts. Automaton has 19720 states and 27031 transitions. Word has length 221 [2022-07-23 02:39:33,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:39:33,713 INFO L495 AbstractCegarLoop]: Abstraction has 19720 states and 27031 transitions. [2022-07-23 02:39:33,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-23 02:39:33,714 INFO L276 IsEmpty]: Start isEmpty. Operand 19720 states and 27031 transitions. [2022-07-23 02:39:33,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-07-23 02:39:33,718 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:39:33,718 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:39:33,766 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-23 02:39:33,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:39:33,940 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:39:33,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:39:33,940 INFO L85 PathProgramCache]: Analyzing trace with hash -202137699, now seen corresponding path program 1 times [2022-07-23 02:39:33,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:39:33,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1306717103] [2022-07-23 02:39:33,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:39:33,942 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:39:33,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:39:33,945 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:39:33,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-23 02:39:35,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:35,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 1759 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 02:39:35,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:39:35,405 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 232 proven. 1 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2022-07-23 02:39:35,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 02:39:35,664 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-07-23 02:39:35,665 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:39:35,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1306717103] [2022-07-23 02:39:35,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1306717103] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 02:39:35,665 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-23 02:39:35,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-23 02:39:35,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329226024] [2022-07-23 02:39:35,666 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-23 02:39:35,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 02:39:35,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:39:35,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 02:39:35,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-23 02:39:35,668 INFO L87 Difference]: Start difference. First operand 19720 states and 27031 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-23 02:39:36,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:39:36,608 INFO L93 Difference]: Finished difference Result 39525 states and 54227 transitions. [2022-07-23 02:39:36,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 02:39:36,609 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 225 [2022-07-23 02:39:36,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:39:36,739 INFO L225 Difference]: With dead ends: 39525 [2022-07-23 02:39:36,739 INFO L226 Difference]: Without dead ends: 19992 [2022-07-23 02:39:36,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 444 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-23 02:39:36,817 INFO L413 NwaCegarLoop]: 2611 mSDtfsCounter, 102 mSDsluCounter, 5190 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 7801 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-23 02:39:36,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 7801 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-23 02:39:36,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19992 states. [2022-07-23 02:39:37,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19992 to 19944. [2022-07-23 02:39:37,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19944 states, 13743 states have (on average 1.2725751291566616) internal successors, (17489), 14035 states have internal predecessors, (17489), 4910 states have call successors, (4910), 1317 states have call predecessors, (4910), 1288 states have return successors, (4968), 4773 states have call predecessors, (4968), 4906 states have call successors, (4968) [2022-07-23 02:39:37,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19944 states to 19944 states and 27367 transitions. [2022-07-23 02:39:37,688 INFO L78 Accepts]: Start accepts. Automaton has 19944 states and 27367 transitions. Word has length 225 [2022-07-23 02:39:37,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:39:37,689 INFO L495 AbstractCegarLoop]: Abstraction has 19944 states and 27367 transitions. [2022-07-23 02:39:37,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-23 02:39:37,690 INFO L276 IsEmpty]: Start isEmpty. Operand 19944 states and 27367 transitions. [2022-07-23 02:39:37,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-07-23 02:39:37,693 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:39:37,694 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:39:37,738 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-23 02:39:37,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:39:37,916 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:39:37,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:39:37,916 INFO L85 PathProgramCache]: Analyzing trace with hash -737014186, now seen corresponding path program 2 times [2022-07-23 02:39:37,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:39:37,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1597675776] [2022-07-23 02:39:37,918 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 02:39:37,918 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:39:37,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:39:37,920 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:39:37,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-23 02:39:39,117 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-23 02:39:39,117 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 02:39:39,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 1347 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 02:39:39,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:39:40,841 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 796 trivial. 0 not checked. [2022-07-23 02:39:40,841 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 02:39:40,842 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:39:40,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1597675776] [2022-07-23 02:39:40,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1597675776] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:39:40,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:39:40,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 02:39:40,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587887449] [2022-07-23 02:39:40,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:39:40,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:39:40,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:39:40,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:39:40,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 02:39:40,844 INFO L87 Difference]: Start difference. First operand 19944 states and 27367 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-07-23 02:39:41,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:39:41,356 INFO L93 Difference]: Finished difference Result 19950 states and 27372 transitions. [2022-07-23 02:39:41,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 02:39:41,356 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 229 [2022-07-23 02:39:41,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:39:41,483 INFO L225 Difference]: With dead ends: 19950 [2022-07-23 02:39:41,484 INFO L226 Difference]: Without dead ends: 19948 [2022-07-23 02:39:41,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:39:41,509 INFO L413 NwaCegarLoop]: 2605 mSDtfsCounter, 2509 mSDsluCounter, 5197 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2510 SdHoareTripleChecker+Valid, 7802 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 02:39:41,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2510 Valid, 7802 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 02:39:41,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19948 states. [2022-07-23 02:39:42,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19948 to 19948. [2022-07-23 02:39:42,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19948 states, 13746 states have (on average 1.2725156409137204) internal successors, (17492), 14038 states have internal predecessors, (17492), 4910 states have call successors, (4910), 1318 states have call predecessors, (4910), 1289 states have return successors, (4968), 4773 states have call predecessors, (4968), 4906 states have call successors, (4968) [2022-07-23 02:39:42,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19948 states to 19948 states and 27370 transitions. [2022-07-23 02:39:42,446 INFO L78 Accepts]: Start accepts. Automaton has 19948 states and 27370 transitions. Word has length 229 [2022-07-23 02:39:42,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:39:42,447 INFO L495 AbstractCegarLoop]: Abstraction has 19948 states and 27370 transitions. [2022-07-23 02:39:42,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-07-23 02:39:42,447 INFO L276 IsEmpty]: Start isEmpty. Operand 19948 states and 27370 transitions. [2022-07-23 02:39:42,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-07-23 02:39:42,452 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:39:42,452 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:39:42,484 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-23 02:39:42,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:39:42,672 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:39:42,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:39:42,672 INFO L85 PathProgramCache]: Analyzing trace with hash 742204719, now seen corresponding path program 1 times [2022-07-23 02:39:42,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:39:42,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [3368465] [2022-07-23 02:39:42,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:39:42,674 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:39:42,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:39:42,675 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:39:42,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-23 02:39:43,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:43,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 1770 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 02:39:43,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:39:43,862 INFO L134 CoverageAnalysis]: Checked inductivity of 798 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 731 trivial. 0 not checked. [2022-07-23 02:39:43,862 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 02:39:43,862 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:39:43,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [3368465] [2022-07-23 02:39:43,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [3368465] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:39:43,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:39:43,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 02:39:43,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238784125] [2022-07-23 02:39:43,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:39:43,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 02:39:43,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:39:43,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 02:39:43,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:39:43,863 INFO L87 Difference]: Start difference. First operand 19948 states and 27370 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, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-23 02:39:45,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 02:39:46,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:39:46,967 INFO L93 Difference]: Finished difference Result 57348 states and 78700 transitions. [2022-07-23 02:39:46,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 02:39:46,967 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, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 234 [2022-07-23 02:39:46,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:39:47,339 INFO L225 Difference]: With dead ends: 57348 [2022-07-23 02:39:47,340 INFO L226 Difference]: Without dead ends: 37587 [2022-07-23 02:39:47,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:39:47,417 INFO L413 NwaCegarLoop]: 3315 mSDtfsCounter, 2406 mSDsluCounter, 2581 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2406 SdHoareTripleChecker+Valid, 5896 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-23 02:39:47,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2406 Valid, 5896 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-07-23 02:39:47,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37587 states. [2022-07-23 02:39:48,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37587 to 37583. [2022-07-23 02:39:48,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37583 states, 25825 states have (on average 1.2683446272991288) internal successors, (32755), 26327 states have internal predecessors, (32755), 9312 states have call successors, (9312), 2492 states have call predecessors, (9312), 2443 states have return successors, (9432), 9103 states have call predecessors, (9432), 9308 states have call successors, (9432) [2022-07-23 02:39:48,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37583 states to 37583 states and 51499 transitions. [2022-07-23 02:39:48,869 INFO L78 Accepts]: Start accepts. Automaton has 37583 states and 51499 transitions. Word has length 234 [2022-07-23 02:39:48,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:39:48,870 INFO L495 AbstractCegarLoop]: Abstraction has 37583 states and 51499 transitions. [2022-07-23 02:39:48,870 INFO L496 AbstractCegarLoop]: INTERPOLANT 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, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-23 02:39:48,870 INFO L276 IsEmpty]: Start isEmpty. Operand 37583 states and 51499 transitions. [2022-07-23 02:39:48,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-07-23 02:39:48,874 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:39:48,875 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:39:48,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-23 02:39:49,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:39:49,099 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:39:49,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:39:49,100 INFO L85 PathProgramCache]: Analyzing trace with hash 764836973, now seen corresponding path program 1 times [2022-07-23 02:39:49,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:39:49,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [181153082] [2022-07-23 02:39:49,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:39:49,102 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:39:49,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:39:49,104 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:39:49,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-23 02:39:50,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:50,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 1770 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 02:39:50,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:39:51,783 INFO L134 CoverageAnalysis]: Checked inductivity of 798 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 796 trivial. 0 not checked. [2022-07-23 02:39:51,783 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 02:39:52,553 INFO L134 CoverageAnalysis]: Checked inductivity of 798 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 796 trivial. 0 not checked. [2022-07-23 02:39:52,553 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:39:52,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [181153082] [2022-07-23 02:39:52,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [181153082] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 02:39:52,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 02:39:52,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 02:39:52,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465390629] [2022-07-23 02:39:52,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:39:52,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:39:52,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:39:52,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:39:52,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:39:52,555 INFO L87 Difference]: Start difference. First operand 37583 states and 51499 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-23 02:39:53,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:39:53,833 INFO L93 Difference]: Finished difference Result 37589 states and 51504 transitions. [2022-07-23 02:39:53,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 02:39:53,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 234 [2022-07-23 02:39:53,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:39:54,016 INFO L225 Difference]: With dead ends: 37589 [2022-07-23 02:39:54,016 INFO L226 Difference]: Without dead ends: 37587 [2022-07-23 02:39:54,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 461 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 02:39:54,044 INFO L413 NwaCegarLoop]: 2608 mSDtfsCounter, 2529 mSDsluCounter, 5196 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2540 SdHoareTripleChecker+Valid, 7804 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 02:39:54,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2540 Valid, 7804 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 02:39:54,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37587 states. [2022-07-23 02:39:55,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37587 to 37587. [2022-07-23 02:39:55,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37587 states, 25828 states have (on average 1.268313458262351) internal successors, (32758), 26330 states have internal predecessors, (32758), 9312 states have call successors, (9312), 2493 states have call predecessors, (9312), 2444 states have return successors, (9432), 9103 states have call predecessors, (9432), 9308 states have call successors, (9432) [2022-07-23 02:39:55,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37587 states to 37587 states and 51502 transitions. [2022-07-23 02:39:55,641 INFO L78 Accepts]: Start accepts. Automaton has 37587 states and 51502 transitions. Word has length 234 [2022-07-23 02:39:55,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:39:55,642 INFO L495 AbstractCegarLoop]: Abstraction has 37587 states and 51502 transitions. [2022-07-23 02:39:55,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-23 02:39:55,642 INFO L276 IsEmpty]: Start isEmpty. Operand 37587 states and 51502 transitions. [2022-07-23 02:39:55,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-07-23 02:39:55,647 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:39:55,648 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:39:55,686 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-23 02:39:55,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:39:55,864 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:39:55,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:39:55,864 INFO L85 PathProgramCache]: Analyzing trace with hash 27919672, now seen corresponding path program 1 times [2022-07-23 02:39:55,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:39:55,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1667655873] [2022-07-23 02:39:55,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:39:55,866 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:39:55,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:39:55,868 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:39:55,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-23 02:39:56,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:39:56,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 1777 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 02:39:56,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:39:58,801 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2022-07-23 02:39:58,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 02:39:59,604 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2022-07-23 02:39:59,604 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:39:59,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1667655873] [2022-07-23 02:39:59,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1667655873] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 02:39:59,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 02:39:59,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 02:39:59,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628825139] [2022-07-23 02:39:59,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:39:59,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:39:59,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:39:59,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:39:59,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:39:59,606 INFO L87 Difference]: Start difference. First operand 37587 states and 51502 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-23 02:40:00,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:40:00,475 INFO L93 Difference]: Finished difference Result 37593 states and 51507 transitions. [2022-07-23 02:40:00,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 02:40:00,476 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 239 [2022-07-23 02:40:00,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:40:00,669 INFO L225 Difference]: With dead ends: 37593 [2022-07-23 02:40:00,670 INFO L226 Difference]: Without dead ends: 37591 [2022-07-23 02:40:00,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 471 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 02:40:00,697 INFO L413 NwaCegarLoop]: 2608 mSDtfsCounter, 2529 mSDsluCounter, 5196 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2539 SdHoareTripleChecker+Valid, 7804 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 02:40:00,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2539 Valid, 7804 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 02:40:00,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37591 states. [2022-07-23 02:40:02,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37591 to 37591. [2022-07-23 02:40:02,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37591 states, 25831 states have (on average 1.2682822964654872) internal successors, (32761), 26333 states have internal predecessors, (32761), 9312 states have call successors, (9312), 2494 states have call predecessors, (9312), 2445 states have return successors, (9432), 9103 states have call predecessors, (9432), 9308 states have call successors, (9432) [2022-07-23 02:40:02,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37591 states to 37591 states and 51505 transitions. [2022-07-23 02:40:02,268 INFO L78 Accepts]: Start accepts. Automaton has 37591 states and 51505 transitions. Word has length 239 [2022-07-23 02:40:02,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:40:02,269 INFO L495 AbstractCegarLoop]: Abstraction has 37591 states and 51505 transitions. [2022-07-23 02:40:02,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-23 02:40:02,269 INFO L276 IsEmpty]: Start isEmpty. Operand 37591 states and 51505 transitions. [2022-07-23 02:40:02,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-07-23 02:40:02,274 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:40:02,275 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:40:02,303 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-23 02:40:02,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:40:02,483 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)] === [2022-07-23 02:40:02,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:40:02,483 INFO L85 PathProgramCache]: Analyzing trace with hash -797327161, now seen corresponding path program 1 times [2022-07-23 02:40:02,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:40:02,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1080629860] [2022-07-23 02:40:02,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:40:02,485 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:40:02,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:40:02,486 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:40:02,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-23 02:40:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:40:03,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 1833 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 02:40:03,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:40:03,738 INFO L134 CoverageAnalysis]: Checked inductivity of 826 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 751 trivial. 0 not checked. [2022-07-23 02:40:03,738 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 02:40:03,738 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:40:03,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1080629860] [2022-07-23 02:40:03,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1080629860] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 02:40:03,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 02:40:03,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 02:40:03,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638949517] [2022-07-23 02:40:03,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:40:03,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 02:40:03,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:40:03,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 02:40:03,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:40:03,740 INFO L87 Difference]: Start difference. First operand 37591 states and 51505 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-07-23 02:40:05,890 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 02:40:07,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:40:07,470 INFO L93 Difference]: Finished difference Result 92681 states and 127041 transitions. [2022-07-23 02:40:07,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 02:40:07,471 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 257 [2022-07-23 02:40:07,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:40:07,717 INFO L225 Difference]: With dead ends: 92681 [2022-07-23 02:40:07,717 INFO L226 Difference]: Without dead ends: 55277 [2022-07-23 02:40:07,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 02:40:07,839 INFO L413 NwaCegarLoop]: 5025 mSDtfsCounter, 2438 mSDsluCounter, 2583 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2438 SdHoareTripleChecker+Valid, 7608 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-23 02:40:07,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2438 Valid, 7608 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-07-23 02:40:07,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55277 states. [2022-07-23 02:40:09,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55277 to 55049. [2022-07-23 02:40:09,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55049 states, 37782 states have (on average 1.2669789847017099) internal successors, (47869), 38496 states have internal predecessors, (47869), 13675 states have call successors, (13675), 3658 states have call predecessors, (13675), 3589 states have return successors, (13857), 13392 states have call predecessors, (13857), 13671 states have call successors, (13857) [2022-07-23 02:40:09,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55049 states to 55049 states and 75401 transitions. [2022-07-23 02:40:09,966 INFO L78 Accepts]: Start accepts. Automaton has 55049 states and 75401 transitions. Word has length 257 [2022-07-23 02:40:09,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:40:09,967 INFO L495 AbstractCegarLoop]: Abstraction has 55049 states and 75401 transitions. [2022-07-23 02:40:09,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-07-23 02:40:09,967 INFO L276 IsEmpty]: Start isEmpty. Operand 55049 states and 75401 transitions. [2022-07-23 02:40:09,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-07-23 02:40:09,973 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:40:09,973 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:40:10,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-23 02:40:10,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:40:10,189 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:40:10,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:40:10,189 INFO L85 PathProgramCache]: Analyzing trace with hash 789601037, now seen corresponding path program 1 times [2022-07-23 02:40:10,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:40:10,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [186843550] [2022-07-23 02:40:10,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:40:10,191 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:40:10,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:40:10,192 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:40:10,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-23 02:40:11,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:40:11,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 1784 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 02:40:11,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:40:13,101 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 808 trivial. 0 not checked. [2022-07-23 02:40:13,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 02:40:13,858 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 808 trivial. 0 not checked. [2022-07-23 02:40:13,858 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:40:13,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [186843550] [2022-07-23 02:40:13,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [186843550] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 02:40:13,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 02:40:13,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 02:40:13,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362634179] [2022-07-23 02:40:13,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:40:13,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:40:13,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:40:13,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:40:13,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:40:13,860 INFO L87 Difference]: Start difference. First operand 55049 states and 75401 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-23 02:40:15,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:40:15,080 INFO L93 Difference]: Finished difference Result 55055 states and 75406 transitions. [2022-07-23 02:40:15,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 02:40:15,081 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 244 [2022-07-23 02:40:15,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:40:15,296 INFO L225 Difference]: With dead ends: 55055 [2022-07-23 02:40:15,297 INFO L226 Difference]: Without dead ends: 55053 [2022-07-23 02:40:15,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 481 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 02:40:15,334 INFO L413 NwaCegarLoop]: 2608 mSDtfsCounter, 2529 mSDsluCounter, 5196 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2538 SdHoareTripleChecker+Valid, 7804 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 02:40:15,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2538 Valid, 7804 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 02:40:15,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55053 states. [2022-07-23 02:40:16,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55053 to 55053. [2022-07-23 02:40:17,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55053 states, 37785 states have (on average 1.266957787481805) internal successors, (47872), 38499 states have internal predecessors, (47872), 13675 states have call successors, (13675), 3659 states have call predecessors, (13675), 3590 states have return successors, (13857), 13392 states have call predecessors, (13857), 13671 states have call successors, (13857) [2022-07-23 02:40:17,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55053 states to 55053 states and 75404 transitions. [2022-07-23 02:40:17,414 INFO L78 Accepts]: Start accepts. Automaton has 55053 states and 75404 transitions. Word has length 244 [2022-07-23 02:40:17,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:40:17,415 INFO L495 AbstractCegarLoop]: Abstraction has 55053 states and 75404 transitions. [2022-07-23 02:40:17,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-23 02:40:17,416 INFO L276 IsEmpty]: Start isEmpty. Operand 55053 states and 75404 transitions. [2022-07-23 02:40:17,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-07-23 02:40:17,422 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:40:17,422 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:40:17,470 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-23 02:40:17,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:40:17,643 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:40:17,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:40:17,644 INFO L85 PathProgramCache]: Analyzing trace with hash -387155432, now seen corresponding path program 1 times [2022-07-23 02:40:17,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:40:17,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1800502526] [2022-07-23 02:40:17,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:40:17,645 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:40:17,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:40:17,647 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:40:17,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-23 02:40:18,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:40:18,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 1791 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 02:40:18,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:40:20,218 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 820 trivial. 0 not checked. [2022-07-23 02:40:20,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 02:40:20,979 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 820 trivial. 0 not checked. [2022-07-23 02:40:20,979 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:40:20,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1800502526] [2022-07-23 02:40:20,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1800502526] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 02:40:20,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 02:40:20,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 02:40:20,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954841536] [2022-07-23 02:40:20,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:40:20,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:40:20,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:40:20,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:40:20,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:40:20,981 INFO L87 Difference]: Start difference. First operand 55053 states and 75404 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-23 02:40:22,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:40:22,391 INFO L93 Difference]: Finished difference Result 55059 states and 75409 transitions. [2022-07-23 02:40:22,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 02:40:22,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 249 [2022-07-23 02:40:22,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:40:22,662 INFO L225 Difference]: With dead ends: 55059 [2022-07-23 02:40:22,663 INFO L226 Difference]: Without dead ends: 55057 [2022-07-23 02:40:22,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 491 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 02:40:22,695 INFO L413 NwaCegarLoop]: 2608 mSDtfsCounter, 2529 mSDsluCounter, 5196 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2537 SdHoareTripleChecker+Valid, 7804 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 02:40:22,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2537 Valid, 7804 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 02:40:22,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55057 states. [2022-07-23 02:40:24,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55057 to 55057. [2022-07-23 02:40:24,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55057 states, 37788 states have (on average 1.2669365936276067) internal successors, (47875), 38502 states have internal predecessors, (47875), 13675 states have call successors, (13675), 3660 states have call predecessors, (13675), 3591 states have return successors, (13857), 13392 states have call predecessors, (13857), 13671 states have call successors, (13857) [2022-07-23 02:40:24,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55057 states to 55057 states and 75407 transitions. [2022-07-23 02:40:24,759 INFO L78 Accepts]: Start accepts. Automaton has 55057 states and 75407 transitions. Word has length 249 [2022-07-23 02:40:24,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:40:24,760 INFO L495 AbstractCegarLoop]: Abstraction has 55057 states and 75407 transitions. [2022-07-23 02:40:24,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-23 02:40:24,760 INFO L276 IsEmpty]: Start isEmpty. Operand 55057 states and 75407 transitions. [2022-07-23 02:40:24,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-07-23 02:40:24,766 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:40:24,766 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:40:24,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-23 02:40:24,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:40:24,979 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:40:24,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:40:24,980 INFO L85 PathProgramCache]: Analyzing trace with hash -240246355, now seen corresponding path program 1 times [2022-07-23 02:40:24,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:40:24,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [347155747] [2022-07-23 02:40:24,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:40:24,982 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:40:24,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:40:24,984 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:40:24,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-23 02:40:26,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:40:26,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 1798 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 02:40:26,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:40:27,716 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 836 trivial. 0 not checked. [2022-07-23 02:40:27,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 02:40:28,481 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 836 trivial. 0 not checked. [2022-07-23 02:40:28,482 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:40:28,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [347155747] [2022-07-23 02:40:28,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [347155747] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 02:40:28,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 02:40:28,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 02:40:28,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701482848] [2022-07-23 02:40:28,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:40:28,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:40:28,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:40:28,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:40:28,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:40:28,484 INFO L87 Difference]: Start difference. First operand 55057 states and 75407 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-23 02:40:30,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:40:30,083 INFO L93 Difference]: Finished difference Result 55063 states and 75412 transitions. [2022-07-23 02:40:30,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 02:40:30,084 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 254 [2022-07-23 02:40:30,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:40:30,308 INFO L225 Difference]: With dead ends: 55063 [2022-07-23 02:40:30,309 INFO L226 Difference]: Without dead ends: 55061 [2022-07-23 02:40:30,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 501 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 02:40:30,338 INFO L413 NwaCegarLoop]: 2608 mSDtfsCounter, 2529 mSDsluCounter, 5196 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2536 SdHoareTripleChecker+Valid, 7804 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 02:40:30,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2536 Valid, 7804 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 02:40:30,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55061 states. [2022-07-23 02:40:32,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55061 to 55061. [2022-07-23 02:40:32,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55061 states, 37791 states have (on average 1.2669154031383134) internal successors, (47878), 38505 states have internal predecessors, (47878), 13675 states have call successors, (13675), 3661 states have call predecessors, (13675), 3592 states have return successors, (13857), 13392 states have call predecessors, (13857), 13671 states have call successors, (13857) [2022-07-23 02:40:32,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55061 states to 55061 states and 75410 transitions. [2022-07-23 02:40:32,513 INFO L78 Accepts]: Start accepts. Automaton has 55061 states and 75410 transitions. Word has length 254 [2022-07-23 02:40:32,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:40:32,514 INFO L495 AbstractCegarLoop]: Abstraction has 55061 states and 75410 transitions. [2022-07-23 02:40:32,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-23 02:40:32,515 INFO L276 IsEmpty]: Start isEmpty. Operand 55061 states and 75410 transitions. [2022-07-23 02:40:32,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-07-23 02:40:32,521 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:40:32,521 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 7, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:40:32,555 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2022-07-23 02:40:32,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:40:32,744 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:40:32,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:40:32,744 INFO L85 PathProgramCache]: Analyzing trace with hash 826017528, now seen corresponding path program 1 times [2022-07-23 02:40:32,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:40:32,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1230076302] [2022-07-23 02:40:32,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:40:32,746 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:40:32,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:40:32,747 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:40:32,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-23 02:40:33,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:40:33,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 1805 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 02:40:33,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:40:35,521 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 856 trivial. 0 not checked. [2022-07-23 02:40:35,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 02:40:36,200 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 856 trivial. 0 not checked. [2022-07-23 02:40:36,201 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:40:36,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1230076302] [2022-07-23 02:40:36,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1230076302] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 02:40:36,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 02:40:36,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 02:40:36,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332381537] [2022-07-23 02:40:36,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:40:36,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:40:36,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:40:36,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:40:36,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:40:36,203 INFO L87 Difference]: Start difference. First operand 55061 states and 75410 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-23 02:40:37,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:40:37,786 INFO L93 Difference]: Finished difference Result 55067 states and 75415 transitions. [2022-07-23 02:40:37,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 02:40:37,786 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 259 [2022-07-23 02:40:37,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:40:38,024 INFO L225 Difference]: With dead ends: 55067 [2022-07-23 02:40:38,024 INFO L226 Difference]: Without dead ends: 55065 [2022-07-23 02:40:38,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 519 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 02:40:38,060 INFO L413 NwaCegarLoop]: 2608 mSDtfsCounter, 2529 mSDsluCounter, 5196 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2535 SdHoareTripleChecker+Valid, 7804 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 02:40:38,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2535 Valid, 7804 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 02:40:38,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55065 states. [2022-07-23 02:40:39,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55065 to 55065. [2022-07-23 02:40:39,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55065 states, 37794 states have (on average 1.2668942160131238) internal successors, (47881), 38508 states have internal predecessors, (47881), 13675 states have call successors, (13675), 3662 states have call predecessors, (13675), 3593 states have return successors, (13857), 13392 states have call predecessors, (13857), 13671 states have call successors, (13857) [2022-07-23 02:40:40,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55065 states to 55065 states and 75413 transitions. [2022-07-23 02:40:40,161 INFO L78 Accepts]: Start accepts. Automaton has 55065 states and 75413 transitions. Word has length 259 [2022-07-23 02:40:40,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:40:40,163 INFO L495 AbstractCegarLoop]: Abstraction has 55065 states and 75413 transitions. [2022-07-23 02:40:40,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-23 02:40:40,163 INFO L276 IsEmpty]: Start isEmpty. Operand 55065 states and 75413 transitions. [2022-07-23 02:40:40,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-07-23 02:40:40,171 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:40:40,171 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 8, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:40:40,213 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-23 02:40:40,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:40:40,388 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:40:40,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:40:40,388 INFO L85 PathProgramCache]: Analyzing trace with hash -408039347, now seen corresponding path program 1 times [2022-07-23 02:40:40,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:40:40,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [37459057] [2022-07-23 02:40:40,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:40:40,389 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:40:40,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:40:40,391 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:40:40,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-23 02:40:41,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:40:41,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 1812 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 02:40:41,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:40:43,058 INFO L134 CoverageAnalysis]: Checked inductivity of 894 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked. [2022-07-23 02:40:43,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 02:40:43,893 INFO L134 CoverageAnalysis]: Checked inductivity of 894 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked. [2022-07-23 02:40:43,894 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:40:43,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [37459057] [2022-07-23 02:40:43,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [37459057] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 02:40:43,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 02:40:43,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 02:40:43,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628903676] [2022-07-23 02:40:43,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:40:43,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:40:43,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:40:43,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:40:43,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:40:43,896 INFO L87 Difference]: Start difference. First operand 55065 states and 75413 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-23 02:40:45,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:40:45,815 INFO L93 Difference]: Finished difference Result 62244 states and 83833 transitions. [2022-07-23 02:40:45,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 02:40:45,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 264 [2022-07-23 02:40:45,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:40:46,087 INFO L225 Difference]: With dead ends: 62244 [2022-07-23 02:40:46,087 INFO L226 Difference]: Without dead ends: 62242 [2022-07-23 02:40:46,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 521 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 02:40:46,114 INFO L413 NwaCegarLoop]: 2949 mSDtfsCounter, 2249 mSDsluCounter, 6625 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2254 SdHoareTripleChecker+Valid, 9574 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 02:40:46,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2254 Valid, 9574 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 02:40:46,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62242 states. [2022-07-23 02:40:47,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62242 to 62242. [2022-07-23 02:40:48,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62242 states, 42768 states have (on average 1.260545267489712) internal successors, (53911), 43530 states have internal predecessors, (53911), 14869 states have call successors, (14869), 4671 states have call predecessors, (14869), 4602 states have return successors, (15051), 14586 states have call predecessors, (15051), 14865 states have call successors, (15051) [2022-07-23 02:40:48,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62242 states to 62242 states and 83831 transitions. [2022-07-23 02:40:48,478 INFO L78 Accepts]: Start accepts. Automaton has 62242 states and 83831 transitions. Word has length 264 [2022-07-23 02:40:48,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:40:48,478 INFO L495 AbstractCegarLoop]: Abstraction has 62242 states and 83831 transitions. [2022-07-23 02:40:48,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-23 02:40:48,479 INFO L276 IsEmpty]: Start isEmpty. Operand 62242 states and 83831 transitions. [2022-07-23 02:40:48,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-07-23 02:40:48,486 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:40:48,486 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 9, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:40:48,521 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-23 02:40:48,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:40:48,708 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:40:48,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:40:48,709 INFO L85 PathProgramCache]: Analyzing trace with hash 521841624, now seen corresponding path program 1 times [2022-07-23 02:40:48,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:40:48,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [785599423] [2022-07-23 02:40:48,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:40:48,710 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:40:48,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:40:48,712 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:40:48,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-23 02:40:49,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:40:49,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 1819 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 02:40:49,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:40:51,595 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 908 trivial. 0 not checked. [2022-07-23 02:40:51,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 02:40:52,420 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 908 trivial. 0 not checked. [2022-07-23 02:40:52,421 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:40:52,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [785599423] [2022-07-23 02:40:52,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [785599423] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 02:40:52,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 02:40:52,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 02:40:52,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484591121] [2022-07-23 02:40:52,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:40:52,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:40:52,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:40:52,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:40:52,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:40:52,423 INFO L87 Difference]: Start difference. First operand 62242 states and 83831 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-23 02:40:54,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:40:54,211 INFO L93 Difference]: Finished difference Result 62248 states and 83836 transitions. [2022-07-23 02:40:54,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 02:40:54,211 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 269 [2022-07-23 02:40:54,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:40:54,559 INFO L225 Difference]: With dead ends: 62248 [2022-07-23 02:40:54,560 INFO L226 Difference]: Without dead ends: 62246 [2022-07-23 02:40:54,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 539 GetRequests, 531 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 02:40:54,599 INFO L413 NwaCegarLoop]: 2608 mSDtfsCounter, 2529 mSDsluCounter, 5196 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2533 SdHoareTripleChecker+Valid, 7804 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 02:40:54,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2533 Valid, 7804 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 02:40:54,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62246 states. [2022-07-23 02:40:56,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62246 to 62246. [2022-07-23 02:40:56,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62246 states, 42771 states have (on average 1.2605269925884361) internal successors, (53914), 43533 states have internal predecessors, (53914), 14869 states have call successors, (14869), 4672 states have call predecessors, (14869), 4603 states have return successors, (15051), 14586 states have call predecessors, (15051), 14865 states have call successors, (15051) [2022-07-23 02:40:56,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62246 states to 62246 states and 83834 transitions. [2022-07-23 02:40:56,861 INFO L78 Accepts]: Start accepts. Automaton has 62246 states and 83834 transitions. Word has length 269 [2022-07-23 02:40:56,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 02:40:56,861 INFO L495 AbstractCegarLoop]: Abstraction has 62246 states and 83834 transitions. [2022-07-23 02:40:56,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-23 02:40:56,861 INFO L276 IsEmpty]: Start isEmpty. Operand 62246 states and 83834 transitions. [2022-07-23 02:40:56,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-07-23 02:40:56,867 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 02:40:56,868 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 10, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 02:40:56,889 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-07-23 02:40:57,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 02:40:57,068 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 02:40:57,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 02:40:57,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1305306861, now seen corresponding path program 1 times [2022-07-23 02:40:57,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 02:40:57,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [258729776] [2022-07-23 02:40:57,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 02:40:57,070 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 02:40:57,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 02:40:57,072 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 02:40:57,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-07-23 02:40:58,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 02:40:58,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 1826 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 02:40:58,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 02:41:00,379 INFO L134 CoverageAnalysis]: Checked inductivity of 958 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 940 trivial. 0 not checked. [2022-07-23 02:41:00,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 02:41:01,227 INFO L134 CoverageAnalysis]: Checked inductivity of 958 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 940 trivial. 0 not checked. [2022-07-23 02:41:01,227 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 02:41:01,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [258729776] [2022-07-23 02:41:01,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [258729776] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 02:41:01,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 02:41:01,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 02:41:01,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830765613] [2022-07-23 02:41:01,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 02:41:01,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 02:41:01,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 02:41:01,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 02:41:01,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 02:41:01,229 INFO L87 Difference]: Start difference. First operand 62246 states and 83834 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-23 02:41:03,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 02:41:03,107 INFO L93 Difference]: Finished difference Result 62252 states and 83839 transitions. [2022-07-23 02:41:03,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 02:41:03,107 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 274 [2022-07-23 02:41:03,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 02:41:03,347 INFO L225 Difference]: With dead ends: 62252 [2022-07-23 02:41:03,347 INFO L226 Difference]: Without dead ends: 62250 [2022-07-23 02:41:03,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 541 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 02:41:03,383 INFO L413 NwaCegarLoop]: 2608 mSDtfsCounter, 2529 mSDsluCounter, 5196 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2532 SdHoareTripleChecker+Valid, 7804 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 02:41:03,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2532 Valid, 7804 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 02:41:03,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62250 states.