./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 eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-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-?-eb692b5 [2022-07-20 02:23:38,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 02:23:38,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 02:23:39,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 02:23:39,024 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 02:23:39,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 02:23:39,027 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 02:23:39,033 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 02:23:39,035 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 02:23:39,041 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 02:23:39,042 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 02:23:39,043 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 02:23:39,044 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 02:23:39,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 02:23:39,047 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 02:23:39,050 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 02:23:39,052 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 02:23:39,054 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 02:23:39,056 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 02:23:39,061 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 02:23:39,063 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 02:23:39,064 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 02:23:39,065 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 02:23:39,066 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 02:23:39,074 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 02:23:39,076 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 02:23:39,077 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 02:23:39,077 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 02:23:39,078 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 02:23:39,078 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 02:23:39,079 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 02:23:39,080 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 02:23:39,081 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 02:23:39,081 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 02:23:39,082 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 02:23:39,082 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 02:23:39,083 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 02:23:39,083 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 02:23:39,083 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 02:23:39,083 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 02:23:39,084 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 02:23:39,085 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 02:23:39,087 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-20 02:23:39,115 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 02:23:39,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 02:23:39,116 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 02:23:39,116 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 02:23:39,117 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 02:23:39,117 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 02:23:39,117 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 02:23:39,117 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 02:23:39,117 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 02:23:39,118 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 02:23:39,118 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 02:23:39,119 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 02:23:39,119 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 02:23:39,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 02:23:39,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 02:23:39,119 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 02:23:39,119 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 02:23:39,119 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 02:23:39,121 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 02:23:39,121 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 02:23:39,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 02:23:39,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 02:23:39,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 02:23:39,122 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 02:23:39,122 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 02:23:39,122 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 02:23:39,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 02:23:39,122 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 02:23:39,122 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 02:23:39,122 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 02:23:39,123 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 [2022-07-20 02:23:39,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 02:23:39,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 02:23:39,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 02:23:39,332 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 02:23:39,333 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 02:23:39,334 INFO L432 ainManager$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 [2022-07-20 02:23:39,391 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1aff2bc2/51525b2a11cd4a6eb970732c5a891c90/FLAG293baf93b [2022-07-20 02:23:40,070 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 02:23:40,071 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 [2022-07-20 02:23:40,130 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1aff2bc2/51525b2a11cd4a6eb970732c5a891c90/FLAG293baf93b [2022-07-20 02:23:40,201 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1aff2bc2/51525b2a11cd4a6eb970732c5a891c90 [2022-07-20 02:23:40,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 02:23:40,205 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 02:23:40,207 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 02:23:40,208 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 02:23:40,210 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 02:23:40,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:23:40" (1/1) ... [2022-07-20 02:23:40,212 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@118b2c3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:23:40, skipping insertion in model container [2022-07-20 02:23:40,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:23:40" (1/1) ... [2022-07-20 02:23:40,218 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 02:23:40,356 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 02:23:42,707 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] [2022-07-20 02:23:42,709 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] [2022-07-20 02:23:42,710 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] [2022-07-20 02:23:42,711 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] [2022-07-20 02:23:42,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 02:23:42,771 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 02:23:42,943 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) [2022-07-20 02:23:42,947 INFO L158 Benchmark]: Toolchain (without parser) took 2741.92ms. Allocated memory was 98.6MB in the beginning and 130.0MB in the end (delta: 31.5MB). Free memory was 56.5MB in the beginning and 43.3MB in the end (delta: 13.2MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2022-07-20 02:23:42,948 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 98.6MB. Free memory was 79.4MB in the beginning and 79.3MB in the end (delta: 70.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 02:23:42,948 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2738.82ms. Allocated memory was 98.6MB in the beginning and 130.0MB in the end (delta: 31.5MB). Free memory was 56.4MB in the beginning and 43.3MB in the end (delta: 13.0MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2022-07-20 02:23:42,949 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 98.6MB. Free memory was 79.4MB in the beginning and 79.3MB in the end (delta: 70.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2738.82ms. Allocated memory was 98.6MB in the beginning and 130.0MB in the end (delta: 31.5MB). Free memory was 56.4MB in the beginning and 43.3MB in the end (delta: 13.0MB). Peak memory consumption was 50.3MB. 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-?-eb692b5 [2022-07-20 02:23:44,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 02:23:44,786 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 02:23:44,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 02:23:44,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 02:23:44,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 02:23:44,841 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 02:23:44,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 02:23:44,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 02:23:44,851 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 02:23:44,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 02:23:44,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 02:23:44,858 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 02:23:44,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 02:23:44,860 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 02:23:44,861 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 02:23:44,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 02:23:44,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 02:23:44,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 02:23:44,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 02:23:44,870 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 02:23:44,884 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 02:23:44,886 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 02:23:44,888 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 02:23:44,889 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 02:23:44,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 02:23:44,893 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 02:23:44,894 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 02:23:44,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 02:23:44,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 02:23:44,895 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 02:23:44,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 02:23:44,897 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 02:23:44,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 02:23:44,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 02:23:44,902 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 02:23:44,903 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 02:23:44,903 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 02:23:44,903 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 02:23:44,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 02:23:44,904 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 02:23:44,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 02:23:44,906 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-20 02:23:44,937 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 02:23:44,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 02:23:44,938 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 02:23:44,938 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 02:23:44,939 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 02:23:44,939 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 02:23:44,940 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 02:23:44,940 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 02:23:44,940 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 02:23:44,941 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 02:23:44,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 02:23:44,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 02:23:44,941 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 02:23:44,941 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 02:23:44,942 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-20 02:23:44,942 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-20 02:23:44,942 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-20 02:23:44,942 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 02:23:44,942 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 02:23:44,942 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 02:23:44,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 02:23:44,943 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 02:23:44,943 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 02:23:44,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 02:23:44,943 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 02:23:44,943 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 02:23:44,943 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 02:23:44,944 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-20 02:23:44,944 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-20 02:23:44,944 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 02:23:44,944 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 02:23:44,944 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 02:23:44,945 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-20 02:23:44,945 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 [2022-07-20 02:23:45,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 02:23:45,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 02:23:45,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 02:23:45,279 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 02:23:45,280 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 02:23:45,282 INFO L432 ainManager$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 [2022-07-20 02:23:45,355 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa5a91ede/de175f12ad724bbda4a16158746a624e/FLAGf14097df5 [2022-07-20 02:23:46,115 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 02:23:46,116 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 [2022-07-20 02:23:46,162 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa5a91ede/de175f12ad724bbda4a16158746a624e/FLAGf14097df5 [2022-07-20 02:23:46,203 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa5a91ede/de175f12ad724bbda4a16158746a624e [2022-07-20 02:23:46,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 02:23:46,207 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 02:23:46,208 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 02:23:46,208 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 02:23:46,211 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 02:23:46,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:23:46" (1/1) ... [2022-07-20 02:23:46,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5862bd8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:23:46, skipping insertion in model container [2022-07-20 02:23:46,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:23:46" (1/1) ... [2022-07-20 02:23:46,219 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 02:23:46,374 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 02:23:48,817 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] [2022-07-20 02:23:48,820 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] [2022-07-20 02:23:48,825 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] [2022-07-20 02:23:48,826 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] [2022-07-20 02:23:48,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 02:23:48,873 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-20 02:23:48,928 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 02:23:49,178 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] [2022-07-20 02:23:49,178 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] [2022-07-20 02:23:49,178 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] [2022-07-20 02:23:49,179 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] [2022-07-20 02:23:49,185 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 02:23:49,202 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 02:23:49,452 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] [2022-07-20 02:23:49,453 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] [2022-07-20 02:23:49,453 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] [2022-07-20 02:23:49,453 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] [2022-07-20 02:23:49,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 02:23:49,578 INFO L208 MainTranslator]: Completed translation [2022-07-20 02:23:49,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:23:49 WrapperNode [2022-07-20 02:23:49,579 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 02:23:49,580 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 02:23:49,580 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 02:23:49,581 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 02:23:49,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:23:49" (1/1) ... [2022-07-20 02:23:49,693 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:23:49" (1/1) ... [2022-07-20 02:23:49,846 INFO L137 Inliner]: procedures = 465, calls = 2209, calls flagged for inlining = 206, calls inlined = 184, statements flattened = 4937 [2022-07-20 02:23:49,846 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 02:23:49,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 02:23:49,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 02:23:49,847 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 02:23:49,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:23:49" (1/1) ... [2022-07-20 02:23:49,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:23:49" (1/1) ... [2022-07-20 02:23:49,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:23:49" (1/1) ... [2022-07-20 02:23:49,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:23:49" (1/1) ... [2022-07-20 02:23:49,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:23:49" (1/1) ... [2022-07-20 02:23:50,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:23:49" (1/1) ... [2022-07-20 02:23:50,052 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:23:49" (1/1) ... [2022-07-20 02:23:50,096 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 02:23:50,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 02:23:50,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 02:23:50,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 02:23:50,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:23:49" (1/1) ... [2022-07-20 02:23:50,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 02:23:50,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 02:23:50,122 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-20 02:23:50,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-20 02:23:50,160 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-20 02:23:50,161 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-20 02:23:50,161 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-20 02:23:50,161 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-20 02:23:50,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-20 02:23:50,161 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-20 02:23:50,161 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-20 02:23:50,162 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-20 02:23:50,162 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_count [2022-07-20 02:23:50,162 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_count [2022-07-20 02:23:50,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-20 02:23:50,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-20 02:23:50,162 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_status [2022-07-20 02:23:50,162 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_status [2022-07-20 02:23:50,162 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-20 02:23:50,163 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-20 02:23:50,163 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2022-07-20 02:23:50,163 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2022-07-20 02:23:50,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-20 02:23:50,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-20 02:23:50,163 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_ring_debug [2022-07-20 02:23:50,163 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_ring_debug [2022-07-20 02:23:50,163 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-20 02:23:50,164 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-20 02:23:50,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_65 [2022-07-20 02:23:50,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_65 [2022-07-20 02:23:50,164 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-20 02:23:50,164 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-20 02:23:50,164 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_close [2022-07-20 02:23:50,164 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_close [2022-07-20 02:23:50,164 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_irda_resume [2022-07-20 02:23:50,165 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_irda_resume [2022-07-20 02:23:50,165 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-20 02:23:50,165 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-20 02:23:50,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-20 02:23:50,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-20 02:23:50,165 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2022-07-20 02:23:50,165 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2022-07-20 02:23:50,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-20 02:23:50,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-20 02:23:50,166 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_free_ring [2022-07-20 02:23:50,166 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_free_ring [2022-07-20 02:23:50,166 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-20 02:23:50,166 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-20 02:23:50,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 02:23:50,166 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2022-07-20 02:23:50,166 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2022-07-20 02:23:50,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-20 02:23:50,167 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-07-20 02:23:50,167 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-07-20 02:23:50,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-20 02:23:50,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-20 02:23:50,167 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-20 02:23:50,167 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-20 02:23:50,167 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_tx_timeout [2022-07-20 02:23:50,167 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_tx_timeout [2022-07-20 02:23:50,168 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-20 02:23:50,168 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-20 02:23:50,168 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_destroy_hwif [2022-07-20 02:23:50,168 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_destroy_hwif [2022-07-20 02:23:50,168 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-20 02:23:50,168 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-20 02:23:50,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-20 02:23:50,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-20 02:23:50,169 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_stop_hw [2022-07-20 02:23:50,169 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_stop_hw [2022-07-20 02:23:50,169 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-20 02:23:50,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-20 02:23:50,169 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_irda_remove [2022-07-20 02:23:50,169 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_irda_remove [2022-07-20 02:23:50,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-20 02:23:50,169 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-20 02:23:50,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-20 02:23:50,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-20 02:23:50,170 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-07-20 02:23:50,170 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-07-20 02:23:50,170 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_clear_regs [2022-07-20 02:23:50,170 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_clear_regs [2022-07-20 02:23:50,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-20 02:23:50,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-20 02:23:50,170 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-20 02:23:50,170 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-20 02:23:50,171 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_start_hw [2022-07-20 02:23:50,171 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_start_hw [2022-07-20 02:23:50,171 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-20 02:23:50,171 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-20 02:23:50,171 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-20 02:23:50,171 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-20 02:23:50,171 INFO L130 BoogieDeclarations]: Found specification of procedure rd_activate [2022-07-20 02:23:50,171 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_activate [2022-07-20 02:23:50,171 INFO L130 BoogieDeclarations]: Found specification of procedure rd_is_active [2022-07-20 02:23:50,172 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_is_active [2022-07-20 02:23:50,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-20 02:23:50,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-20 02:23:50,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 02:23:50,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-20 02:23:50,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-20 02:23:50,172 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_count [2022-07-20 02:23:50,172 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_count [2022-07-20 02:23:50,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-07-20 02:23:50,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-07-20 02:23:50,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 02:23:50,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-20 02:23:50,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-20 02:23:50,173 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-20 02:23:50,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-20 02:23:50,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 02:23:50,174 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-20 02:23:50,174 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_open [2022-07-20 02:23:50,174 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_open [2022-07-20 02:23:50,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-20 02:23:50,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-20 02:23:50,174 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-20 02:23:50,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-20 02:23:50,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-20 02:23:50,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_vlsi_mod_exit_11_2 [2022-07-20 02:23:50,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_vlsi_mod_exit_11_2 [2022-07-20 02:23:50,175 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-20 02:23:50,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-20 02:23:50,175 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-20 02:23:50,175 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-20 02:23:50,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-20 02:23:50,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-20 02:23:50,175 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_reg_debug [2022-07-20 02:23:50,175 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_reg_debug [2022-07-20 02:23:50,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-20 02:23:50,176 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_set_baud [2022-07-20 02:23:50,176 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_set_baud [2022-07-20 02:23:50,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 02:23:50,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 02:23:50,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-20 02:23:50,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-20 02:23:50,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-20 02:23:50,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-20 02:23:50,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-20 02:23:50,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-20 02:23:50,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-20 02:23:50,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-20 02:23:50,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-20 02:23:50,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-20 02:23:50,177 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-07-20 02:23:50,177 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-07-20 02:23:50,177 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2022-07-20 02:23:50,177 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2022-07-20 02:23:50,178 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_status [2022-07-20 02:23:50,178 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_status [2022-07-20 02:23:50,178 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-20 02:23:50,178 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-20 02:23:50,178 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-20 02:23:50,178 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-20 02:23:50,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-20 02:23:50,178 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-20 02:23:50,178 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-20 02:23:50,179 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-20 02:23:50,179 INFO L130 BoogieDeclarations]: Found specification of procedure ring_get [2022-07-20 02:23:50,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_get [2022-07-20 02:23:50,179 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-20 02:23:50,179 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-20 02:23:50,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 02:23:50,179 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-20 02:23:50,179 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-20 02:23:50,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 02:23:50,180 INFO L130 BoogieDeclarations]: Found specification of procedure ring_last [2022-07-20 02:23:50,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_last [2022-07-20 02:23:50,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-20 02:23:50,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-20 02:23:50,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-20 02:23:50,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-20 02:23:50,181 INFO L130 BoogieDeclarations]: Found specification of procedure ring_put [2022-07-20 02:23:50,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_put [2022-07-20 02:23:50,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 02:23:50,181 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-07-20 02:23:50,181 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-07-20 02:23:50,181 INFO L130 BoogieDeclarations]: Found specification of procedure do_gettimeofday [2022-07-20 02:23:50,181 INFO L138 BoogieDeclarations]: Found implementation of procedure do_gettimeofday [2022-07-20 02:23:50,182 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-07-20 02:23:50,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-07-20 02:23:50,182 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-07-20 02:23:50,182 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-07-20 02:23:50,182 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-20 02:23:50,182 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-20 02:23:50,182 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-20 02:23:50,182 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-20 02:23:50,182 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-20 02:23:50,183 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-20 02:23:50,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-20 02:23:50,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-20 02:23:50,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-07-20 02:23:50,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-07-20 02:23:50,183 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_addr_status [2022-07-20 02:23:50,183 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_addr_status [2022-07-20 02:23:50,183 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_addr [2022-07-20 02:23:50,183 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_addr [2022-07-20 02:23:50,184 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-20 02:23:50,184 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-20 02:23:50,184 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-20 02:23:50,184 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-20 02:23:50,184 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-20 02:23:50,184 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-20 02:23:50,184 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-20 02:23:50,184 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-20 02:23:50,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-20 02:23:50,184 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-07-20 02:23:50,185 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-07-20 02:23:50,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-20 02:23:50,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-20 02:23:50,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-20 02:23:50,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-20 02:23:50,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-20 02:23:50,185 INFO L130 BoogieDeclarations]: Found specification of procedure irlap_close [2022-07-20 02:23:50,185 INFO L138 BoogieDeclarations]: Found implementation of procedure irlap_close [2022-07-20 02:23:50,185 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-20 02:23:50,185 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-20 02:23:50,186 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-20 02:23:50,186 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-20 02:23:50,186 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_process_tx [2022-07-20 02:23:50,186 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_process_tx [2022-07-20 02:23:50,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-20 02:23:50,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-20 02:23:50,186 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_alloc_ring [2022-07-20 02:23:50,186 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_alloc_ring [2022-07-20 02:23:50,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_vlsi_irda_dev [2022-07-20 02:23:50,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_vlsi_irda_dev [2022-07-20 02:23:50,187 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_fill_rx [2022-07-20 02:23:50,187 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_fill_rx [2022-07-20 02:23:50,187 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-20 02:23:50,187 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-20 02:23:50,187 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_process_rx [2022-07-20 02:23:50,187 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_process_rx [2022-07-20 02:23:50,187 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-20 02:23:50,187 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-20 02:23:50,187 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-07-20 02:23:50,188 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-07-20 02:23:50,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-20 02:23:50,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-20 02:23:50,188 INFO L130 BoogieDeclarations]: Found specification of procedure ring_first [2022-07-20 02:23:50,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_first [2022-07-20 02:23:50,188 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-07-20 02:23:50,188 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-07-20 02:23:50,892 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 02:23:50,895 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 02:23:53,031 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-20 02:24:15,106 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-20 02:24:15,165 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 02:24:15,205 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 02:24:15,219 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-20 02:24:15,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:24:15 BoogieIcfgContainer [2022-07-20 02:24:15,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 02:24:15,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 02:24:15,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 02:24:15,228 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 02:24:15,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 02:23:46" (1/3) ... [2022-07-20 02:24:15,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25f288db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:24:15, skipping insertion in model container [2022-07-20 02:24:15,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:23:49" (2/3) ... [2022-07-20 02:24:15,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25f288db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:24:15, skipping insertion in model container [2022-07-20 02:24:15,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:24:15" (3/3) ... [2022-07-20 02:24:15,231 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2022-07-20 02:24:15,240 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 02:24:15,255 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-20 02:24:15,338 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 02:24:15,346 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@206201fe, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7a4269db [2022-07-20 02:24:15,346 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-20 02:24:15,356 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) [2022-07-20 02:24:15,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-07-20 02:24:15,382 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:24:15,382 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] [2022-07-20 02:24:15,383 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:24:15,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:24:15,386 INFO L85 PathProgramCache]: Analyzing trace with hash -2147203978, now seen corresponding path program 1 times [2022-07-20 02:24:15,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:24:15,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [671035302] [2022-07-20 02:24:15,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:24:15,403 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:24:15,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:24:15,443 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:24:15,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-20 02:24:16,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:16,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 1593 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 02:24:16,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:24:16,693 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2022-07-20 02:24:16,693 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:24:16,694 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:24:16,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [671035302] [2022-07-20 02:24:16,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [671035302] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:24:16,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:24:16,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 02:24:16,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582179869] [2022-07-20 02:24:16,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:24:16,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 02:24:16,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:24:16,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 02:24:16,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:24:16,720 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) [2022-07-20 02:24:18,846 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 [] [2022-07-20 02:24:19,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:24:19,244 INFO L93 Difference]: Finished difference Result 5475 states and 7807 transitions. [2022-07-20 02:24:19,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 02:24:19,247 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 [2022-07-20 02:24:19,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:24:19,279 INFO L225 Difference]: With dead ends: 5475 [2022-07-20 02:24:19,280 INFO L226 Difference]: Without dead ends: 3605 [2022-07-20 02:24:19,295 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 [2022-07-20 02:24:19,298 INFO L413 NwaCegarLoop]: 3096 mSDtfsCounter, 2484 mSDsluCounter, 2534 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s 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 [2022-07-20 02:24:19,299 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] [2022-07-20 02:24:19,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3605 states. [2022-07-20 02:24:19,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3605 to 3601. [2022-07-20 02:24:19,477 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) [2022-07-20 02:24:19,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3601 states to 3601 states and 5020 transitions. [2022-07-20 02:24:19,509 INFO L78 Accepts]: Start accepts. Automaton has 3601 states and 5020 transitions. Word has length 149 [2022-07-20 02:24:19,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:24:19,510 INFO L495 AbstractCegarLoop]: Abstraction has 3601 states and 5020 transitions. [2022-07-20 02:24:19,511 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) [2022-07-20 02:24:19,511 INFO L276 IsEmpty]: Start isEmpty. Operand 3601 states and 5020 transitions. [2022-07-20 02:24:19,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-07-20 02:24:19,516 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:24:19,516 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] [2022-07-20 02:24:19,548 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-20 02:24:19,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:24:19,732 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:24:19,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:24:19,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1243014584, now seen corresponding path program 1 times [2022-07-20 02:24:19,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:24:19,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1891941097] [2022-07-20 02:24:19,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:24:19,734 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:24:19,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:24:19,735 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:24:19,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-20 02:24:20,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:20,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 1626 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 02:24:20,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:24:20,907 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2022-07-20 02:24:20,907 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:24:20,907 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:24:20,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1891941097] [2022-07-20 02:24:20,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1891941097] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:24:20,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:24:20,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 02:24:20,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117612489] [2022-07-20 02:24:20,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:24:20,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 02:24:20,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:24:20,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 02:24:20,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:24:20,909 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) [2022-07-20 02:24:23,035 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 [] [2022-07-20 02:24:23,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:24:23,405 INFO L93 Difference]: Finished difference Result 10433 states and 14518 transitions. [2022-07-20 02:24:23,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 02:24:23,406 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 [2022-07-20 02:24:23,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:24:23,456 INFO L225 Difference]: With dead ends: 10433 [2022-07-20 02:24:23,456 INFO L226 Difference]: Without dead ends: 6859 [2022-07-20 02:24:23,476 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 [2022-07-20 02:24:23,477 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, 2.3s IncrementalHoareTripleChecker+Time [2022-07-20 02:24:23,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2374 Valid, 5846 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 14 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-07-20 02:24:23,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6859 states. [2022-07-20 02:24:23,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6859 to 6829. [2022-07-20 02:24:23,829 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) [2022-07-20 02:24:23,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6829 states to 6829 states and 9489 transitions. [2022-07-20 02:24:23,876 INFO L78 Accepts]: Start accepts. Automaton has 6829 states and 9489 transitions. Word has length 150 [2022-07-20 02:24:23,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:24:23,880 INFO L495 AbstractCegarLoop]: Abstraction has 6829 states and 9489 transitions. [2022-07-20 02:24:23,880 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) [2022-07-20 02:24:23,881 INFO L276 IsEmpty]: Start isEmpty. Operand 6829 states and 9489 transitions. [2022-07-20 02:24:23,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-07-20 02:24:23,885 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:24:23,888 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] [2022-07-20 02:24:23,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-20 02:24:24,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:24:24,111 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:24:24,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:24:24,112 INFO L85 PathProgramCache]: Analyzing trace with hash 645334117, now seen corresponding path program 1 times [2022-07-20 02:24:24,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:24:24,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2073189745] [2022-07-20 02:24:24,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:24:24,113 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:24:24,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:24:24,116 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:24:24,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-20 02:24:25,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:25,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 1644 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 02:24:25,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:24:25,426 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2022-07-20 02:24:25,426 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:24:25,426 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:24:25,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2073189745] [2022-07-20 02:24:25,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2073189745] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:24:25,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:24:25,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 02:24:25,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393754177] [2022-07-20 02:24:25,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:24:25,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 02:24:25,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:24:25,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 02:24:25,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:24:25,428 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) [2022-07-20 02:24:27,541 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:24:27,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:24:27,968 INFO L93 Difference]: Finished difference Result 19759 states and 27353 transitions. [2022-07-20 02:24:27,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 02:24:27,969 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 [2022-07-20 02:24:27,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:24:28,059 INFO L225 Difference]: With dead ends: 19759 [2022-07-20 02:24:28,059 INFO L226 Difference]: Without dead ends: 12957 [2022-07-20 02:24:28,093 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 [2022-07-20 02:24:28,095 INFO L413 NwaCegarLoop]: 3059 mSDtfsCounter, 2316 mSDsluCounter, 2549 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s 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, 2.3s IncrementalHoareTripleChecker+Time [2022-07-20 02:24:28,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2316 Valid, 5608 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 29 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-07-20 02:24:28,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12957 states. [2022-07-20 02:24:28,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12957 to 12925. [2022-07-20 02:24:28,544 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) [2022-07-20 02:24:28,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12925 states to 12925 states and 17841 transitions. [2022-07-20 02:24:28,617 INFO L78 Accepts]: Start accepts. Automaton has 12925 states and 17841 transitions. Word has length 158 [2022-07-20 02:24:28,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:24:28,619 INFO L495 AbstractCegarLoop]: Abstraction has 12925 states and 17841 transitions. [2022-07-20 02:24:28,620 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) [2022-07-20 02:24:28,620 INFO L276 IsEmpty]: Start isEmpty. Operand 12925 states and 17841 transitions. [2022-07-20 02:24:28,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-07-20 02:24:28,625 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:24:28,625 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] [2022-07-20 02:24:28,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-20 02:24:28,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:24:28,848 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:24:28,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:24:28,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1178511947, now seen corresponding path program 1 times [2022-07-20 02:24:28,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:24:28,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [371273707] [2022-07-20 02:24:28,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:24:28,851 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:24:28,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:24:28,853 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:24:28,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-20 02:24:29,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:29,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 1891 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 02:24:29,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:24:30,067 INFO L134 CoverageAnalysis]: Checked inductivity of 538 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2022-07-20 02:24:30,067 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:24:30,068 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:24:30,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [371273707] [2022-07-20 02:24:30,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [371273707] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:24:30,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:24:30,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 02:24:30,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906128048] [2022-07-20 02:24:30,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:24:30,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 02:24:30,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:24:30,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 02:24:30,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:24:30,069 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) [2022-07-20 02:24:32,208 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 [] [2022-07-20 02:24:32,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:24:32,991 INFO L93 Difference]: Finished difference Result 23181 states and 31975 transitions. [2022-07-20 02:24:32,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 02:24:32,992 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 [2022-07-20 02:24:32,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:24:33,069 INFO L225 Difference]: With dead ends: 23181 [2022-07-20 02:24:33,070 INFO L226 Difference]: Without dead ends: 10283 [2022-07-20 02:24:33,149 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 [2022-07-20 02:24:33,151 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 [2022-07-20 02:24:33,152 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] [2022-07-20 02:24:33,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10283 states. [2022-07-20 02:24:33,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10283 to 10251. [2022-07-20 02:24:33,468 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) [2022-07-20 02:24:33,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10251 states to 10251 states and 14051 transitions. [2022-07-20 02:24:33,522 INFO L78 Accepts]: Start accepts. Automaton has 10251 states and 14051 transitions. Word has length 212 [2022-07-20 02:24:33,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:24:33,523 INFO L495 AbstractCegarLoop]: Abstraction has 10251 states and 14051 transitions. [2022-07-20 02:24:33,523 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) [2022-07-20 02:24:33,524 INFO L276 IsEmpty]: Start isEmpty. Operand 10251 states and 14051 transitions. [2022-07-20 02:24:33,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-07-20 02:24:33,527 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:24:33,527 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] [2022-07-20 02:24:33,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-20 02:24:33,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:24:33,751 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)] === [2022-07-20 02:24:33,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:24:33,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1257416363, now seen corresponding path program 1 times [2022-07-20 02:24:33,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:24:33,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1065787157] [2022-07-20 02:24:33,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:24:33,753 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:24:33,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:24:33,755 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:24:33,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-20 02:24:34,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:34,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 1667 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 02:24:34,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:24:35,788 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 535 trivial. 0 not checked. [2022-07-20 02:24:35,790 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:24:35,791 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:24:35,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1065787157] [2022-07-20 02:24:35,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1065787157] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:24:35,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:24:35,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 02:24:35,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506423726] [2022-07-20 02:24:35,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:24:35,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 02:24:35,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:24:35,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 02:24:35,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:24:35,793 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) [2022-07-20 02:24:36,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:24:36,199 INFO L93 Difference]: Finished difference Result 29634 states and 40666 transitions. [2022-07-20 02:24:36,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 02:24:36,200 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 [2022-07-20 02:24:36,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:24:36,279 INFO L225 Difference]: With dead ends: 29634 [2022-07-20 02:24:36,280 INFO L226 Difference]: Without dead ends: 19570 [2022-07-20 02:24:36,412 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 [2022-07-20 02:24:36,413 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 [2022-07-20 02:24:36,413 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] [2022-07-20 02:24:36,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19570 states. [2022-07-20 02:24:36,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19570 to 19544. [2022-07-20 02:24:36,903 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) [2022-07-20 02:24:36,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19544 states to 19544 states and 26743 transitions. [2022-07-20 02:24:36,998 INFO L78 Accepts]: Start accepts. Automaton has 19544 states and 26743 transitions. Word has length 198 [2022-07-20 02:24:36,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:24:36,999 INFO L495 AbstractCegarLoop]: Abstraction has 19544 states and 26743 transitions. [2022-07-20 02:24:37,000 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) [2022-07-20 02:24:37,000 INFO L276 IsEmpty]: Start isEmpty. Operand 19544 states and 26743 transitions. [2022-07-20 02:24:37,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-07-20 02:24:37,003 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:24:37,004 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] [2022-07-20 02:24:37,035 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-07-20 02:24:37,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:24:37,224 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)] === [2022-07-20 02:24:37,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:24:37,224 INFO L85 PathProgramCache]: Analyzing trace with hash -882447260, now seen corresponding path program 1 times [2022-07-20 02:24:37,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:24:37,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1055469210] [2022-07-20 02:24:37,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:24:37,225 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:24:37,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:24:37,227 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:24:37,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-20 02:24:38,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:38,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 1755 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 02:24:38,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:24:38,340 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 232 proven. 0 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2022-07-20 02:24:38,341 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:24:38,341 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:24:38,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1055469210] [2022-07-20 02:24:38,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1055469210] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:24:38,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:24:38,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 02:24:38,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081851413] [2022-07-20 02:24:38,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:24:38,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 02:24:38,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:24:38,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 02:24:38,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:24:38,343 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) [2022-07-20 02:24:39,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:24:39,065 INFO L93 Difference]: Finished difference Result 39125 states and 53603 transitions. [2022-07-20 02:24:39,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 02:24:39,076 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 [2022-07-20 02:24:39,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:24:39,144 INFO L225 Difference]: With dead ends: 39125 [2022-07-20 02:24:39,145 INFO L226 Difference]: Without dead ends: 19768 [2022-07-20 02:24:39,181 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 [2022-07-20 02:24:39,182 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 [2022-07-20 02:24:39,183 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] [2022-07-20 02:24:39,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19768 states. [2022-07-20 02:24:39,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19768 to 19720. [2022-07-20 02:24:39,653 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) [2022-07-20 02:24:39,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19720 states to 19720 states and 27031 transitions. [2022-07-20 02:24:39,751 INFO L78 Accepts]: Start accepts. Automaton has 19720 states and 27031 transitions. Word has length 221 [2022-07-20 02:24:39,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:24:39,752 INFO L495 AbstractCegarLoop]: Abstraction has 19720 states and 27031 transitions. [2022-07-20 02:24:39,752 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) [2022-07-20 02:24:39,752 INFO L276 IsEmpty]: Start isEmpty. Operand 19720 states and 27031 transitions. [2022-07-20 02:24:39,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-07-20 02:24:39,755 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:24:39,756 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] [2022-07-20 02:24:39,788 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-20 02:24:39,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:24:39,976 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:24:39,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:24:39,977 INFO L85 PathProgramCache]: Analyzing trace with hash -202137699, now seen corresponding path program 1 times [2022-07-20 02:24:39,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:24:39,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [282352165] [2022-07-20 02:24:39,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:24:39,979 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:24:39,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:24:39,980 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:24:39,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-20 02:24:41,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:41,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 1759 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-20 02:24:41,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:24:41,163 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 232 proven. 1 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2022-07-20 02:24:41,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:24:41,338 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-07-20 02:24:41,338 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:24:41,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [282352165] [2022-07-20 02:24:41,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [282352165] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 02:24:41,339 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 02:24:41,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-20 02:24:41,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873052173] [2022-07-20 02:24:41,339 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 02:24:41,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 02:24:41,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:24:41,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 02:24:41,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:24:41,340 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) [2022-07-20 02:24:41,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:24:41,968 INFO L93 Difference]: Finished difference Result 39525 states and 54227 transitions. [2022-07-20 02:24:41,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 02:24:41,969 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 [2022-07-20 02:24:41,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:24:42,051 INFO L225 Difference]: With dead ends: 39525 [2022-07-20 02:24:42,052 INFO L226 Difference]: Without dead ends: 19992 [2022-07-20 02:24:42,117 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 [2022-07-20 02:24:42,118 INFO L413 NwaCegarLoop]: 2611 mSDtfsCounter, 102 mSDsluCounter, 5190 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 02:24:42,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 7801 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 02:24:42,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19992 states. [2022-07-20 02:24:42,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19992 to 19944. [2022-07-20 02:24:42,591 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) [2022-07-20 02:24:42,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19944 states to 19944 states and 27367 transitions. [2022-07-20 02:24:42,660 INFO L78 Accepts]: Start accepts. Automaton has 19944 states and 27367 transitions. Word has length 225 [2022-07-20 02:24:42,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:24:42,663 INFO L495 AbstractCegarLoop]: Abstraction has 19944 states and 27367 transitions. [2022-07-20 02:24:42,663 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) [2022-07-20 02:24:42,663 INFO L276 IsEmpty]: Start isEmpty. Operand 19944 states and 27367 transitions. [2022-07-20 02:24:42,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-07-20 02:24:42,666 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:24:42,666 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] [2022-07-20 02:24:42,704 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-20 02:24:42,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:24:42,879 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:24:42,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:24:42,880 INFO L85 PathProgramCache]: Analyzing trace with hash -737014186, now seen corresponding path program 2 times [2022-07-20 02:24:42,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:24:42,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2083098386] [2022-07-20 02:24:42,881 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-20 02:24:42,881 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:24:42,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:24:42,892 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:24:42,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-20 02:24:43,741 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-20 02:24:43,741 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 02:24:43,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 1347 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:24:43,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:24:45,093 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 796 trivial. 0 not checked. [2022-07-20 02:24:45,094 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:24:45,094 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:24:45,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2083098386] [2022-07-20 02:24:45,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2083098386] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:24:45,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:24:45,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 02:24:45,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701921263] [2022-07-20 02:24:45,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:24:45,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:24:45,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:24:45,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:24:45,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 02:24:45,102 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) [2022-07-20 02:24:45,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:24:45,492 INFO L93 Difference]: Finished difference Result 19950 states and 27372 transitions. [2022-07-20 02:24:45,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 02:24:45,493 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 [2022-07-20 02:24:45,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:24:45,564 INFO L225 Difference]: With dead ends: 19950 [2022-07-20 02:24:45,564 INFO L226 Difference]: Without dead ends: 19948 [2022-07-20 02:24:45,576 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 [2022-07-20 02:24:45,577 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 [2022-07-20 02:24:45,577 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] [2022-07-20 02:24:45,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19948 states. [2022-07-20 02:24:46,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19948 to 19948. [2022-07-20 02:24:46,170 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) [2022-07-20 02:24:46,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19948 states to 19948 states and 27370 transitions. [2022-07-20 02:24:46,231 INFO L78 Accepts]: Start accepts. Automaton has 19948 states and 27370 transitions. Word has length 229 [2022-07-20 02:24:46,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:24:46,231 INFO L495 AbstractCegarLoop]: Abstraction has 19948 states and 27370 transitions. [2022-07-20 02:24:46,231 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) [2022-07-20 02:24:46,231 INFO L276 IsEmpty]: Start isEmpty. Operand 19948 states and 27370 transitions. [2022-07-20 02:24:46,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-07-20 02:24:46,234 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:24:46,234 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] [2022-07-20 02:24:46,267 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-07-20 02:24:46,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:24:46,448 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:24:46,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:24:46,448 INFO L85 PathProgramCache]: Analyzing trace with hash 742204719, now seen corresponding path program 1 times [2022-07-20 02:24:46,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:24:46,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1223760663] [2022-07-20 02:24:46,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:24:46,450 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:24:46,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:24:46,460 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:24:46,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-20 02:24:47,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:47,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 1770 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 02:24:47,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:24:47,557 INFO L134 CoverageAnalysis]: Checked inductivity of 798 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 731 trivial. 0 not checked. [2022-07-20 02:24:47,557 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:24:47,557 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:24:47,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1223760663] [2022-07-20 02:24:47,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1223760663] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:24:47,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:24:47,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 02:24:47,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544898364] [2022-07-20 02:24:47,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:24:47,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 02:24:47,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:24:47,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 02:24:47,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:24:47,558 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) [2022-07-20 02:24:49,664 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:24:50,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:24:50,310 INFO L93 Difference]: Finished difference Result 57348 states and 78700 transitions. [2022-07-20 02:24:50,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 02:24:50,311 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 [2022-07-20 02:24:50,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:24:50,471 INFO L225 Difference]: With dead ends: 57348 [2022-07-20 02:24:50,471 INFO L226 Difference]: Without dead ends: 37587 [2022-07-20 02:24:50,558 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 [2022-07-20 02:24:50,560 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 [2022-07-20 02:24:50,560 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] [2022-07-20 02:24:50,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37587 states. [2022-07-20 02:24:51,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37587 to 37583. [2022-07-20 02:24:51,581 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) [2022-07-20 02:24:51,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37583 states to 37583 states and 51499 transitions. [2022-07-20 02:24:51,715 INFO L78 Accepts]: Start accepts. Automaton has 37583 states and 51499 transitions. Word has length 234 [2022-07-20 02:24:51,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:24:51,715 INFO L495 AbstractCegarLoop]: Abstraction has 37583 states and 51499 transitions. [2022-07-20 02:24:51,716 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) [2022-07-20 02:24:51,716 INFO L276 IsEmpty]: Start isEmpty. Operand 37583 states and 51499 transitions. [2022-07-20 02:24:51,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-07-20 02:24:51,719 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:24:51,719 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] [2022-07-20 02:24:51,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-20 02:24:51,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:24:51,939 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:24:51,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:24:51,940 INFO L85 PathProgramCache]: Analyzing trace with hash 764836973, now seen corresponding path program 1 times [2022-07-20 02:24:51,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:24:51,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [167851779] [2022-07-20 02:24:51,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:24:51,941 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:24:51,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:24:51,956 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:24:51,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-20 02:24:52,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:52,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 1770 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:24:52,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:24:54,343 INFO L134 CoverageAnalysis]: Checked inductivity of 798 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 796 trivial. 0 not checked. [2022-07-20 02:24:54,343 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:24:55,038 INFO L134 CoverageAnalysis]: Checked inductivity of 798 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 796 trivial. 0 not checked. [2022-07-20 02:24:55,038 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:24:55,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [167851779] [2022-07-20 02:24:55,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [167851779] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:24:55,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:24:55,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:24:55,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145363152] [2022-07-20 02:24:55,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:24:55,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:24:55,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:24:55,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:24:55,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:24:55,040 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) [2022-07-20 02:24:55,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:24:55,904 INFO L93 Difference]: Finished difference Result 37589 states and 51504 transitions. [2022-07-20 02:24:55,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:24:55,905 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 [2022-07-20 02:24:55,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:24:56,161 INFO L225 Difference]: With dead ends: 37589 [2022-07-20 02:24:56,162 INFO L226 Difference]: Without dead ends: 37587 [2022-07-20 02:24:56,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 461 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:24:56,180 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 [2022-07-20 02:24:56,181 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] [2022-07-20 02:24:56,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37587 states. [2022-07-20 02:24:57,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37587 to 37587. [2022-07-20 02:24:57,152 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) [2022-07-20 02:24:57,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37587 states to 37587 states and 51502 transitions. [2022-07-20 02:24:57,276 INFO L78 Accepts]: Start accepts. Automaton has 37587 states and 51502 transitions. Word has length 234 [2022-07-20 02:24:57,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:24:57,277 INFO L495 AbstractCegarLoop]: Abstraction has 37587 states and 51502 transitions. [2022-07-20 02:24:57,277 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) [2022-07-20 02:24:57,277 INFO L276 IsEmpty]: Start isEmpty. Operand 37587 states and 51502 transitions. [2022-07-20 02:24:57,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-07-20 02:24:57,280 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:24:57,281 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] [2022-07-20 02:24:57,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-20 02:24:57,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:24:57,499 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:24:57,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:24:57,500 INFO L85 PathProgramCache]: Analyzing trace with hash 27919672, now seen corresponding path program 1 times [2022-07-20 02:24:57,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:24:57,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [698405242] [2022-07-20 02:24:57,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:24:57,501 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:24:57,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:24:57,502 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:24:57,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-20 02:24:58,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:58,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 1777 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:24:58,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:25:00,319 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2022-07-20 02:25:00,320 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:25:01,011 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2022-07-20 02:25:01,011 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:25:01,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [698405242] [2022-07-20 02:25:01,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [698405242] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:25:01,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:25:01,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:25:01,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586206719] [2022-07-20 02:25:01,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:25:01,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:25:01,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:25:01,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:25:01,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:25:01,013 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) [2022-07-20 02:25:01,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:25:01,802 INFO L93 Difference]: Finished difference Result 37593 states and 51507 transitions. [2022-07-20 02:25:01,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:25:01,803 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 [2022-07-20 02:25:01,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:25:01,943 INFO L225 Difference]: With dead ends: 37593 [2022-07-20 02:25:01,943 INFO L226 Difference]: Without dead ends: 37591 [2022-07-20 02:25:01,965 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 [2022-07-20 02:25:01,965 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 [2022-07-20 02:25:01,966 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] [2022-07-20 02:25:02,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37591 states. [2022-07-20 02:25:02,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37591 to 37591. [2022-07-20 02:25:02,961 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) [2022-07-20 02:25:03,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37591 states to 37591 states and 51505 transitions. [2022-07-20 02:25:03,239 INFO L78 Accepts]: Start accepts. Automaton has 37591 states and 51505 transitions. Word has length 239 [2022-07-20 02:25:03,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:25:03,240 INFO L495 AbstractCegarLoop]: Abstraction has 37591 states and 51505 transitions. [2022-07-20 02:25:03,240 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) [2022-07-20 02:25:03,241 INFO L276 IsEmpty]: Start isEmpty. Operand 37591 states and 51505 transitions. [2022-07-20 02:25:03,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-07-20 02:25:03,266 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:25:03,266 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] [2022-07-20 02:25:03,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-20 02:25:03,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:25:03,467 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:25:03,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:25:03,467 INFO L85 PathProgramCache]: Analyzing trace with hash -797327161, now seen corresponding path program 1 times [2022-07-20 02:25:03,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:25:03,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1608634304] [2022-07-20 02:25:03,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:25:03,469 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:25:03,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:25:03,472 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:25:03,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-20 02:25:04,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:04,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 1833 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 02:25:04,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:25:04,621 INFO L134 CoverageAnalysis]: Checked inductivity of 826 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 751 trivial. 0 not checked. [2022-07-20 02:25:04,621 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:25:04,621 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:25:04,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1608634304] [2022-07-20 02:25:04,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1608634304] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:25:04,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:25:04,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 02:25:04,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671213969] [2022-07-20 02:25:04,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:25:04,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 02:25:04,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:25:04,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 02:25:04,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:25:04,623 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) [2022-07-20 02:25:06,737 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 02:25:08,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:25:08,331 INFO L93 Difference]: Finished difference Result 92681 states and 127041 transitions. [2022-07-20 02:25:08,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 02:25:08,332 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 [2022-07-20 02:25:08,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:25:08,631 INFO L225 Difference]: With dead ends: 92681 [2022-07-20 02:25:08,631 INFO L226 Difference]: Without dead ends: 55277 [2022-07-20 02:25:08,894 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 [2022-07-20 02:25:08,895 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, 2.2s IncrementalHoareTripleChecker+Time [2022-07-20 02:25:08,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2438 Valid, 7608 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-07-20 02:25:08,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55277 states. [2022-07-20 02:25:10,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55277 to 55049. [2022-07-20 02:25:10,558 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) [2022-07-20 02:25:10,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55049 states to 55049 states and 75401 transitions. [2022-07-20 02:25:10,965 INFO L78 Accepts]: Start accepts. Automaton has 55049 states and 75401 transitions. Word has length 257 [2022-07-20 02:25:10,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:25:10,966 INFO L495 AbstractCegarLoop]: Abstraction has 55049 states and 75401 transitions. [2022-07-20 02:25:10,966 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) [2022-07-20 02:25:10,966 INFO L276 IsEmpty]: Start isEmpty. Operand 55049 states and 75401 transitions. [2022-07-20 02:25:10,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-07-20 02:25:10,970 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:25:10,970 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] [2022-07-20 02:25:11,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-20 02:25:11,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:25:11,183 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:25:11,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:25:11,184 INFO L85 PathProgramCache]: Analyzing trace with hash 789601037, now seen corresponding path program 1 times [2022-07-20 02:25:11,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:25:11,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [633057495] [2022-07-20 02:25:11,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:25:11,185 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:25:11,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:25:11,187 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:25:11,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-20 02:25:12,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:12,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 1784 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:25:12,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:25:14,035 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 808 trivial. 0 not checked. [2022-07-20 02:25:14,035 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:25:14,744 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 808 trivial. 0 not checked. [2022-07-20 02:25:14,745 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:25:14,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [633057495] [2022-07-20 02:25:14,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [633057495] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:25:14,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:25:14,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:25:14,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708738000] [2022-07-20 02:25:14,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:25:14,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:25:14,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:25:14,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:25:14,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:25:14,747 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) [2022-07-20 02:25:16,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:25:16,047 INFO L93 Difference]: Finished difference Result 55055 states and 75406 transitions. [2022-07-20 02:25:16,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:25:16,048 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 [2022-07-20 02:25:16,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:25:16,346 INFO L225 Difference]: With dead ends: 55055 [2022-07-20 02:25:16,346 INFO L226 Difference]: Without dead ends: 55053 [2022-07-20 02:25:16,368 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 [2022-07-20 02:25:16,375 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 [2022-07-20 02:25:16,376 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] [2022-07-20 02:25:16,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55053 states. [2022-07-20 02:25:17,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55053 to 55053. [2022-07-20 02:25:18,047 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) [2022-07-20 02:25:18,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55053 states to 55053 states and 75404 transitions. [2022-07-20 02:25:18,296 INFO L78 Accepts]: Start accepts. Automaton has 55053 states and 75404 transitions. Word has length 244 [2022-07-20 02:25:18,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:25:18,312 INFO L495 AbstractCegarLoop]: Abstraction has 55053 states and 75404 transitions. [2022-07-20 02:25:18,312 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) [2022-07-20 02:25:18,312 INFO L276 IsEmpty]: Start isEmpty. Operand 55053 states and 75404 transitions. [2022-07-20 02:25:18,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-07-20 02:25:18,316 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:25:18,316 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] [2022-07-20 02:25:18,358 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-20 02:25:18,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:25:18,535 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:25:18,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:25:18,536 INFO L85 PathProgramCache]: Analyzing trace with hash -387155432, now seen corresponding path program 1 times [2022-07-20 02:25:18,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:25:18,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [58324231] [2022-07-20 02:25:18,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:25:18,537 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:25:18,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:25:18,538 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:25:18,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-20 02:25:19,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:19,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 1791 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:25:19,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:25:21,327 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 820 trivial. 0 not checked. [2022-07-20 02:25:21,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:25:22,085 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 820 trivial. 0 not checked. [2022-07-20 02:25:22,085 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:25:22,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [58324231] [2022-07-20 02:25:22,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [58324231] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:25:22,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:25:22,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:25:22,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664731485] [2022-07-20 02:25:22,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:25:22,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:25:22,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:25:22,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:25:22,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:25:22,087 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) [2022-07-20 02:25:23,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:25:23,648 INFO L93 Difference]: Finished difference Result 55059 states and 75409 transitions. [2022-07-20 02:25:23,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:25:23,649 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 [2022-07-20 02:25:23,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:25:23,949 INFO L225 Difference]: With dead ends: 55059 [2022-07-20 02:25:23,950 INFO L226 Difference]: Without dead ends: 55057 [2022-07-20 02:25:23,969 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 [2022-07-20 02:25:23,970 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 [2022-07-20 02:25:23,970 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] [2022-07-20 02:25:24,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55057 states. [2022-07-20 02:25:25,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55057 to 55057. [2022-07-20 02:25:25,798 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) [2022-07-20 02:25:26,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55057 states to 55057 states and 75407 transitions. [2022-07-20 02:25:26,016 INFO L78 Accepts]: Start accepts. Automaton has 55057 states and 75407 transitions. Word has length 249 [2022-07-20 02:25:26,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:25:26,017 INFO L495 AbstractCegarLoop]: Abstraction has 55057 states and 75407 transitions. [2022-07-20 02:25:26,017 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) [2022-07-20 02:25:26,017 INFO L276 IsEmpty]: Start isEmpty. Operand 55057 states and 75407 transitions. [2022-07-20 02:25:26,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-07-20 02:25:26,022 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:25:26,022 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] [2022-07-20 02:25:26,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-20 02:25:26,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:25:26,229 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:25:26,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:25:26,230 INFO L85 PathProgramCache]: Analyzing trace with hash -240246355, now seen corresponding path program 1 times [2022-07-20 02:25:26,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:25:26,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [489949720] [2022-07-20 02:25:26,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:25:26,249 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:25:26,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:25:26,250 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:25:26,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-20 02:25:27,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:27,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 1798 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:25:27,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:25:29,136 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 836 trivial. 0 not checked. [2022-07-20 02:25:29,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:25:29,896 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 836 trivial. 0 not checked. [2022-07-20 02:25:29,896 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:25:29,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [489949720] [2022-07-20 02:25:29,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [489949720] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:25:29,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:25:29,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:25:29,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500441464] [2022-07-20 02:25:29,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:25:29,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:25:29,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:25:29,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:25:29,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:25:29,898 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) [2022-07-20 02:25:31,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:25:31,406 INFO L93 Difference]: Finished difference Result 55063 states and 75412 transitions. [2022-07-20 02:25:31,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:25:31,407 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 [2022-07-20 02:25:31,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:25:31,691 INFO L225 Difference]: With dead ends: 55063 [2022-07-20 02:25:31,691 INFO L226 Difference]: Without dead ends: 55061 [2022-07-20 02:25:31,710 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 [2022-07-20 02:25:31,710 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 [2022-07-20 02:25:31,711 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] [2022-07-20 02:25:31,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55061 states. [2022-07-20 02:25:33,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55061 to 55061. [2022-07-20 02:25:33,365 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) [2022-07-20 02:25:33,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55061 states to 55061 states and 75410 transitions. [2022-07-20 02:25:33,608 INFO L78 Accepts]: Start accepts. Automaton has 55061 states and 75410 transitions. Word has length 254 [2022-07-20 02:25:33,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:25:33,609 INFO L495 AbstractCegarLoop]: Abstraction has 55061 states and 75410 transitions. [2022-07-20 02:25:33,609 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) [2022-07-20 02:25:33,610 INFO L276 IsEmpty]: Start isEmpty. Operand 55061 states and 75410 transitions. [2022-07-20 02:25:33,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-07-20 02:25:33,615 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:25:33,615 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] [2022-07-20 02:25:33,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-20 02:25:33,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:25:33,831 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)] === [2022-07-20 02:25:33,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:25:33,832 INFO L85 PathProgramCache]: Analyzing trace with hash 826017528, now seen corresponding path program 1 times [2022-07-20 02:25:33,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:25:33,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [862530839] [2022-07-20 02:25:33,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:25:33,833 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:25:33,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:25:33,835 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) [2022-07-20 02:25:33,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-20 02:25:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:35,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 1805 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:25:35,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:25:36,799 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 856 trivial. 0 not checked. [2022-07-20 02:25:36,799 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:25:37,509 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 856 trivial. 0 not checked. [2022-07-20 02:25:37,509 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:25:37,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [862530839] [2022-07-20 02:25:37,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [862530839] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:25:37,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:25:37,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:25:37,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102801080] [2022-07-20 02:25:37,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:25:37,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:25:37,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:25:37,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:25:37,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:25:37,510 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) [2022-07-20 02:25:39,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:25:39,032 INFO L93 Difference]: Finished difference Result 55067 states and 75415 transitions. [2022-07-20 02:25:39,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:25:39,032 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 [2022-07-20 02:25:39,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:25:39,252 INFO L225 Difference]: With dead ends: 55067 [2022-07-20 02:25:39,253 INFO L226 Difference]: Without dead ends: 55065 [2022-07-20 02:25:39,280 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 [2022-07-20 02:25:39,281 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 [2022-07-20 02:25:39,281 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] [2022-07-20 02:25:39,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55065 states. [2022-07-20 02:25:41,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55065 to 55065. [2022-07-20 02:25:41,130 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) [2022-07-20 02:25:41,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55065 states to 55065 states and 75413 transitions. [2022-07-20 02:25:41,522 INFO L78 Accepts]: Start accepts. Automaton has 55065 states and 75413 transitions. Word has length 259 [2022-07-20 02:25:41,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:25:41,524 INFO L495 AbstractCegarLoop]: Abstraction has 55065 states and 75413 transitions. [2022-07-20 02:25:41,524 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) [2022-07-20 02:25:41,524 INFO L276 IsEmpty]: Start isEmpty. Operand 55065 states and 75413 transitions. [2022-07-20 02:25:41,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-07-20 02:25:41,528 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:25:41,529 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] [2022-07-20 02:25:41,554 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2022-07-20 02:25:41,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:25:41,751 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)] === [2022-07-20 02:25:41,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:25:41,752 INFO L85 PathProgramCache]: Analyzing trace with hash -408039347, now seen corresponding path program 1 times [2022-07-20 02:25:41,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:25:41,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1022619855] [2022-07-20 02:25:41,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:25:41,753 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:25:41,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:25:41,755 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) [2022-07-20 02:25:41,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-20 02:25:42,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:42,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 1812 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:25:42,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:25:44,366 INFO L134 CoverageAnalysis]: Checked inductivity of 894 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked. [2022-07-20 02:25:44,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:25:45,110 INFO L134 CoverageAnalysis]: Checked inductivity of 894 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked. [2022-07-20 02:25:45,110 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:25:45,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1022619855] [2022-07-20 02:25:45,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1022619855] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:25:45,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:25:45,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:25:45,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871930824] [2022-07-20 02:25:45,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:25:45,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:25:45,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:25:45,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:25:45,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:25:45,112 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) [2022-07-20 02:25:46,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:25:46,745 INFO L93 Difference]: Finished difference Result 62244 states and 83833 transitions. [2022-07-20 02:25:46,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:25:46,746 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 [2022-07-20 02:25:46,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:25:46,989 INFO L225 Difference]: With dead ends: 62244 [2022-07-20 02:25:46,989 INFO L226 Difference]: Without dead ends: 62242 [2022-07-20 02:25:47,018 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 [2022-07-20 02:25:47,018 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 [2022-07-20 02:25:47,018 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] [2022-07-20 02:25:47,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62242 states. [2022-07-20 02:25:49,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62242 to 62242. [2022-07-20 02:25:49,111 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) [2022-07-20 02:25:49,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62242 states to 62242 states and 83831 transitions. [2022-07-20 02:25:49,562 INFO L78 Accepts]: Start accepts. Automaton has 62242 states and 83831 transitions. Word has length 264 [2022-07-20 02:25:49,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:25:49,563 INFO L495 AbstractCegarLoop]: Abstraction has 62242 states and 83831 transitions. [2022-07-20 02:25:49,564 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) [2022-07-20 02:25:49,564 INFO L276 IsEmpty]: Start isEmpty. Operand 62242 states and 83831 transitions. [2022-07-20 02:25:49,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-07-20 02:25:49,569 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:25:49,569 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] [2022-07-20 02:25:49,593 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-20 02:25:49,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:25:49,786 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)] === [2022-07-20 02:25:49,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:25:49,786 INFO L85 PathProgramCache]: Analyzing trace with hash 521841624, now seen corresponding path program 1 times [2022-07-20 02:25:49,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:25:49,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1366570956] [2022-07-20 02:25:49,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:25:49,788 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:25:49,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:25:49,789 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) [2022-07-20 02:25:49,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-20 02:25:50,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:50,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 1819 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:25:50,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:25:52,434 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 908 trivial. 0 not checked. [2022-07-20 02:25:52,435 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:25:53,187 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 908 trivial. 0 not checked. [2022-07-20 02:25:53,187 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:25:53,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1366570956] [2022-07-20 02:25:53,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1366570956] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:25:53,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:25:53,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:25:53,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070324227] [2022-07-20 02:25:53,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:25:53,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:25:53,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:25:53,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:25:53,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:25:53,188 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) [2022-07-20 02:25:54,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:25:54,862 INFO L93 Difference]: Finished difference Result 62248 states and 83836 transitions. [2022-07-20 02:25:54,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:25:54,863 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 [2022-07-20 02:25:54,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:25:55,075 INFO L225 Difference]: With dead ends: 62248 [2022-07-20 02:25:55,076 INFO L226 Difference]: Without dead ends: 62246 [2022-07-20 02:25:55,108 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 [2022-07-20 02:25:55,108 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 [2022-07-20 02:25:55,108 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] [2022-07-20 02:25:55,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62246 states. [2022-07-20 02:25:57,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62246 to 62246. [2022-07-20 02:25:57,251 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) [2022-07-20 02:25:57,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62246 states to 62246 states and 83834 transitions. [2022-07-20 02:25:57,486 INFO L78 Accepts]: Start accepts. Automaton has 62246 states and 83834 transitions. Word has length 269 [2022-07-20 02:25:57,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:25:57,487 INFO L495 AbstractCegarLoop]: Abstraction has 62246 states and 83834 transitions. [2022-07-20 02:25:57,487 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) [2022-07-20 02:25:57,487 INFO L276 IsEmpty]: Start isEmpty. Operand 62246 states and 83834 transitions. [2022-07-20 02:25:57,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-07-20 02:25:57,493 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:25:57,493 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] [2022-07-20 02:25:57,518 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-07-20 02:25:57,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:25:57,718 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)] === [2022-07-20 02:25:57,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:25:57,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1305306861, now seen corresponding path program 1 times [2022-07-20 02:25:57,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:25:57,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1484144693] [2022-07-20 02:25:57,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:25:57,720 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:25:57,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:25:57,721 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) [2022-07-20 02:25:57,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-07-20 02:25:58,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:25:58,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 1826 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:25:58,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:26:00,242 INFO L134 CoverageAnalysis]: Checked inductivity of 958 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 940 trivial. 0 not checked. [2022-07-20 02:26:00,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:26:01,024 INFO L134 CoverageAnalysis]: Checked inductivity of 958 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 940 trivial. 0 not checked. [2022-07-20 02:26:01,024 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:26:01,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1484144693] [2022-07-20 02:26:01,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1484144693] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:26:01,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:26:01,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:26:01,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020765653] [2022-07-20 02:26:01,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:26:01,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:26:01,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:26:01,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:26:01,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:26:01,025 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) [2022-07-20 02:26:02,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:26:02,861 INFO L93 Difference]: Finished difference Result 62252 states and 83839 transitions. [2022-07-20 02:26:02,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:26:02,862 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 [2022-07-20 02:26:02,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:26:03,078 INFO L225 Difference]: With dead ends: 62252 [2022-07-20 02:26:03,078 INFO L226 Difference]: Without dead ends: 62250 [2022-07-20 02:26:03,107 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 [2022-07-20 02:26:03,107 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 [2022-07-20 02:26:03,108 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] [2022-07-20 02:26:03,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62250 states. [2022-07-20 02:26:05,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62250 to 62250. [2022-07-20 02:26:05,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62250 states, 42774 states have (on average 1.2605087202506196) internal successors, (53917), 43536 states have internal predecessors, (53917), 14869 states have call successors, (14869), 4673 states have call predecessors, (14869), 4604 states have return successors, (15051), 14586 states have call predecessors, (15051), 14865 states have call successors, (15051) [2022-07-20 02:26:05,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62250 states to 62250 states and 83837 transitions. [2022-07-20 02:26:05,608 INFO L78 Accepts]: Start accepts. Automaton has 62250 states and 83837 transitions. Word has length 274 [2022-07-20 02:26:05,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:26:05,608 INFO L495 AbstractCegarLoop]: Abstraction has 62250 states and 83837 transitions. [2022-07-20 02:26:05,609 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, (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) [2022-07-20 02:26:05,609 INFO L276 IsEmpty]: Start isEmpty. Operand 62250 states and 83837 transitions. [2022-07-20 02:26:05,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-07-20 02:26:05,615 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:26:05,616 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 11, 10, 10, 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, 1, 1] [2022-07-20 02:26:05,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-07-20 02:26:05,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:26:05,840 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:26:05,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:26:05,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1131779912, now seen corresponding path program 1 times [2022-07-20 02:26:05,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:26:05,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [758508663] [2022-07-20 02:26:05,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:26:05,842 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:26:05,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:26:05,843 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:26:05,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-07-20 02:26:06,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:26:06,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 1833 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:26:06,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:26:08,557 INFO L134 CoverageAnalysis]: Checked inductivity of 996 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 976 trivial. 0 not checked. [2022-07-20 02:26:08,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:26:09,274 INFO L134 CoverageAnalysis]: Checked inductivity of 996 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 976 trivial. 0 not checked. [2022-07-20 02:26:09,274 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:26:09,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [758508663] [2022-07-20 02:26:09,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [758508663] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:26:09,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:26:09,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:26:09,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136417843] [2022-07-20 02:26:09,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:26:09,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:26:09,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:26:09,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:26:09,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:26:09,276 INFO L87 Difference]: Start difference. First operand 62250 states and 83837 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, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-20 02:26:11,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:26:11,142 INFO L93 Difference]: Finished difference Result 62256 states and 83842 transitions. [2022-07-20 02:26:11,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:26:11,143 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, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 279 [2022-07-20 02:26:11,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:26:11,369 INFO L225 Difference]: With dead ends: 62256 [2022-07-20 02:26:11,370 INFO L226 Difference]: Without dead ends: 62254 [2022-07-20 02:26:11,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 559 GetRequests, 551 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:26:11,406 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, 2531 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 [2022-07-20 02:26:11,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2531 Valid, 7804 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 02:26:11,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62254 states. [2022-07-20 02:26:13,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62254 to 62254. [2022-07-20 02:26:13,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62254 states, 42777 states have (on average 1.2604904504757228) internal successors, (53920), 43539 states have internal predecessors, (53920), 14869 states have call successors, (14869), 4674 states have call predecessors, (14869), 4605 states have return successors, (15051), 14586 states have call predecessors, (15051), 14865 states have call successors, (15051) [2022-07-20 02:26:14,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62254 states to 62254 states and 83840 transitions. [2022-07-20 02:26:14,011 INFO L78 Accepts]: Start accepts. Automaton has 62254 states and 83840 transitions. Word has length 279 [2022-07-20 02:26:14,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:26:14,012 INFO L495 AbstractCegarLoop]: Abstraction has 62254 states and 83840 transitions. [2022-07-20 02:26:14,012 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, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-20 02:26:14,012 INFO L276 IsEmpty]: Start isEmpty. Operand 62254 states and 83840 transitions. [2022-07-20 02:26:14,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-07-20 02:26:14,019 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:26:14,019 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 12, 12, 12, 12, 12, 12, 12, 11, 11, 6, 6, 6, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:26:14,044 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Ended with exit code 0 [2022-07-20 02:26:14,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:26:14,234 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:26:14,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:26:14,234 INFO L85 PathProgramCache]: Analyzing trace with hash 2142201600, now seen corresponding path program 1 times [2022-07-20 02:26:14,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:26:14,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1358941794] [2022-07-20 02:26:14,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:26:14,236 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:26:14,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:26:14,237 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:26:14,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process