./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-ethernet-sis-sis900.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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-ethernet-sis-sis900.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 82e959473290e80a4f353bcd3c2747bafa4ce239975e14e29f8e5bf5eff4b01b --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 03:00:27,949 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 03:00:27,951 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 03:00:27,989 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 03:00:27,990 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 03:00:27,991 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 03:00:27,992 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 03:00:28,001 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 03:00:28,002 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 03:00:28,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 03:00:28,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 03:00:28,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 03:00:28,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 03:00:28,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 03:00:28,017 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 03:00:28,018 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 03:00:28,019 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 03:00:28,019 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 03:00:28,020 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 03:00:28,021 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 03:00:28,022 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 03:00:28,023 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 03:00:28,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 03:00:28,024 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 03:00:28,026 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 03:00:28,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 03:00:28,031 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 03:00:28,031 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 03:00:28,032 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 03:00:28,032 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 03:00:28,033 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 03:00:28,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 03:00:28,035 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 03:00:28,035 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 03:00:28,036 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 03:00:28,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 03:00:28,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 03:00:28,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 03:00:28,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 03:00:28,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 03:00:28,038 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 03:00:28,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 03:00:28,041 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 03:00:28,066 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 03:00:28,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 03:00:28,067 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 03:00:28,067 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 03:00:28,069 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 03:00:28,069 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 03:00:28,070 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 03:00:28,070 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 03:00:28,070 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 03:00:28,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 03:00:28,071 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 03:00:28,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 03:00:28,071 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 03:00:28,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 03:00:28,072 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 03:00:28,072 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 03:00:28,072 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 03:00:28,072 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 03:00:28,073 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 03:00:28,074 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 03:00:28,074 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 03:00:28,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 03:00:28,074 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 03:00:28,074 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 03:00:28,074 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 03:00:28,075 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 03:00:28,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 03:00:28,075 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 03:00:28,075 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 03:00:28,075 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 03:00:28,075 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82e959473290e80a4f353bcd3c2747bafa4ce239975e14e29f8e5bf5eff4b01b [2022-07-14 03:00:28,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 03:00:28,322 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 03:00:28,324 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 03:00:28,325 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 03:00:28,326 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 03:00:28,327 INFO L432 ainManager$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-ethernet-sis-sis900.cil.i [2022-07-14 03:00:28,383 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0adc9ce02/ca7622fe90c4444aa8e3fcaaeb3f6cf1/FLAG0896073cf [2022-07-14 03:00:29,036 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 03:00:29,037 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-ethernet-sis-sis900.cil.i [2022-07-14 03:00:29,072 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0adc9ce02/ca7622fe90c4444aa8e3fcaaeb3f6cf1/FLAG0896073cf [2022-07-14 03:00:29,384 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0adc9ce02/ca7622fe90c4444aa8e3fcaaeb3f6cf1 [2022-07-14 03:00:29,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 03:00:29,387 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 03:00:29,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 03:00:29,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 03:00:29,416 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 03:00:29,423 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:00:29" (1/1) ... [2022-07-14 03:00:29,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6edc5210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:00:29, skipping insertion in model container [2022-07-14 03:00:29,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:00:29" (1/1) ... [2022-07-14 03:00:29,428 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 03:00:29,528 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 03:00:31,423 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-ethernet-sis-sis900.cil.i[343367,343380] [2022-07-14 03:00:31,426 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-ethernet-sis-sis900.cil.i[343536,343549] [2022-07-14 03:00:31,426 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-ethernet-sis-sis900.cil.i[343703,343716] [2022-07-14 03:00:31,426 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-ethernet-sis-sis900.cil.i[343871,343884] [2022-07-14 03:00:31,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 03:00:31,455 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 03:00:31,636 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: cfgpmcsr = cfgpmcsr & 4294967039U [8534] 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:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) 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) [2022-07-14 03:00:31,642 INFO L158 Benchmark]: Toolchain (without parser) took 2252.82ms. Allocated memory was 119.5MB in the beginning and 195.0MB in the end (delta: 75.5MB). Free memory was 89.1MB in the beginning and 123.0MB in the end (delta: -33.9MB). Peak memory consumption was 89.2MB. Max. memory is 16.1GB. [2022-07-14 03:00:31,642 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 119.5MB. Free memory was 98.1MB in the beginning and 97.9MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 03:00:31,644 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2239.65ms. Allocated memory was 119.5MB in the beginning and 195.0MB in the end (delta: 75.5MB). Free memory was 89.1MB in the beginning and 123.0MB in the end (delta: -33.9MB). Peak memory consumption was 89.2MB. Max. memory is 16.1GB. [2022-07-14 03:00:31,645 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 119.5MB. Free memory was 98.1MB in the beginning and 97.9MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2239.65ms. Allocated memory was 119.5MB in the beginning and 195.0MB in the end (delta: 75.5MB). Free memory was 89.1MB in the beginning and 123.0MB in the end (delta: -33.9MB). Peak memory consumption was 89.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: cfgpmcsr = cfgpmcsr & 4294967039U [8534] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: cfgpmcsr = cfgpmcsr & 4294967039U [8534]: 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-ethernet-sis-sis900.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 82e959473290e80a4f353bcd3c2747bafa4ce239975e14e29f8e5bf5eff4b01b --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 03:00:33,460 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 03:00:33,462 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 03:00:33,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 03:00:33,494 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 03:00:33,495 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 03:00:33,498 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 03:00:33,500 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 03:00:33,501 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 03:00:33,504 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 03:00:33,505 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 03:00:33,508 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 03:00:33,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 03:00:33,510 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 03:00:33,510 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 03:00:33,512 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 03:00:33,513 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 03:00:33,514 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 03:00:33,515 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 03:00:33,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 03:00:33,520 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 03:00:33,536 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 03:00:33,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 03:00:33,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 03:00:33,539 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 03:00:33,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 03:00:33,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 03:00:33,576 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 03:00:33,577 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 03:00:33,577 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 03:00:33,577 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 03:00:33,578 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 03:00:33,579 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 03:00:33,579 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 03:00:33,580 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 03:00:33,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 03:00:33,581 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 03:00:33,581 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 03:00:33,581 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 03:00:33,582 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 03:00:33,582 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 03:00:33,583 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 03:00:33,587 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-14 03:00:33,607 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 03:00:33,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 03:00:33,608 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 03:00:33,608 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 03:00:33,608 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 03:00:33,609 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 03:00:33,609 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 03:00:33,609 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 03:00:33,609 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 03:00:33,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 03:00:33,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 03:00:33,610 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 03:00:33,610 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 03:00:33,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 03:00:33,611 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 03:00:33,611 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-14 03:00:33,611 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-14 03:00:33,611 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 03:00:33,611 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 03:00:33,611 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 03:00:33,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 03:00:33,623 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 03:00:33,623 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 03:00:33,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 03:00:33,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 03:00:33,624 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 03:00:33,624 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 03:00:33,624 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-14 03:00:33,624 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-14 03:00:33,624 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 03:00:33,624 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 03:00:33,625 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 03:00:33,625 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-14 03:00:33,625 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82e959473290e80a4f353bcd3c2747bafa4ce239975e14e29f8e5bf5eff4b01b [2022-07-14 03:00:34,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 03:00:34,058 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 03:00:34,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 03:00:34,060 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 03:00:34,061 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 03:00:34,062 INFO L432 ainManager$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-ethernet-sis-sis900.cil.i [2022-07-14 03:00:34,110 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c372dacca/1dc2b6dd7ec2497998ebe4a0cdabe38f/FLAG8e7a1dd0d [2022-07-14 03:00:34,795 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 03:00:34,796 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-ethernet-sis-sis900.cil.i [2022-07-14 03:00:34,841 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c372dacca/1dc2b6dd7ec2497998ebe4a0cdabe38f/FLAG8e7a1dd0d [2022-07-14 03:00:35,124 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c372dacca/1dc2b6dd7ec2497998ebe4a0cdabe38f [2022-07-14 03:00:35,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 03:00:35,142 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 03:00:35,144 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 03:00:35,144 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 03:00:35,147 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 03:00:35,147 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:00:35" (1/1) ... [2022-07-14 03:00:35,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a9c6db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:00:35, skipping insertion in model container [2022-07-14 03:00:35,148 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:00:35" (1/1) ... [2022-07-14 03:00:35,152 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 03:00:35,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 03:00:36,966 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-ethernet-sis-sis900.cil.i[343367,343380] [2022-07-14 03:00:36,969 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-ethernet-sis-sis900.cil.i[343536,343549] [2022-07-14 03:00:36,969 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-ethernet-sis-sis900.cil.i[343703,343716] [2022-07-14 03:00:36,969 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-ethernet-sis-sis900.cil.i[343871,343884] [2022-07-14 03:00:36,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 03:00:37,036 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-14 03:00:37,074 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 03:00:37,292 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-ethernet-sis-sis900.cil.i[343367,343380] [2022-07-14 03:00:37,292 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-ethernet-sis-sis900.cil.i[343536,343549] [2022-07-14 03:00:37,293 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-ethernet-sis-sis900.cil.i[343703,343716] [2022-07-14 03:00:37,293 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-ethernet-sis-sis900.cil.i[343871,343884] [2022-07-14 03:00:37,299 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 03:00:37,325 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 03:00:37,555 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-ethernet-sis-sis900.cil.i[343367,343380] [2022-07-14 03:00:37,556 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-ethernet-sis-sis900.cil.i[343536,343549] [2022-07-14 03:00:37,557 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-ethernet-sis-sis900.cil.i[343703,343716] [2022-07-14 03:00:37,557 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-ethernet-sis-sis900.cil.i[343871,343884] [2022-07-14 03:00:37,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 03:00:37,695 INFO L208 MainTranslator]: Completed translation [2022-07-14 03:00:37,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:00:37 WrapperNode [2022-07-14 03:00:37,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 03:00:37,697 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 03:00:37,698 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 03:00:37,698 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 03:00:37,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:00:37" (1/1) ... [2022-07-14 03:00:37,787 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:00:37" (1/1) ... [2022-07-14 03:00:38,073 INFO L137 Inliner]: procedures = 463, calls = 1948, calls flagged for inlining = 238, calls inlined = 222, statements flattened = 5029 [2022-07-14 03:00:38,074 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 03:00:38,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 03:00:38,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 03:00:38,075 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 03:00:38,081 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:00:37" (1/1) ... [2022-07-14 03:00:38,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:00:37" (1/1) ... [2022-07-14 03:00:38,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:00:37" (1/1) ... [2022-07-14 03:00:38,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:00:37" (1/1) ... [2022-07-14 03:00:38,226 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:00:37" (1/1) ... [2022-07-14 03:00:38,246 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:00:37" (1/1) ... [2022-07-14 03:00:38,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:00:37" (1/1) ... [2022-07-14 03:00:38,293 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 03:00:38,294 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 03:00:38,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 03:00:38,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 03:00:38,295 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:00:37" (1/1) ... [2022-07-14 03:00:38,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 03:00:38,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 03:00:38,324 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) [2022-07-14 03:00:38,330 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 [2022-07-14 03:00:38,373 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rxfilter [2022-07-14 03:00:38,373 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rxfilter [2022-07-14 03:00:38,373 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-07-14 03:00:38,373 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-07-14 03:00:38,373 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-14 03:00:38,374 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-14 03:00:38,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-14 03:00:38,374 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-14 03:00:38,374 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-14 03:00:38,374 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-14 03:00:38,374 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-14 03:00:38,374 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-14 03:00:38,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 03:00:38,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 03:00:38,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-14 03:00:38,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-14 03:00:38,375 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-14 03:00:38,375 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-14 03:00:38,375 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-14 03:00:38,376 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-14 03:00:38,376 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-07-14 03:00:38,376 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-07-14 03:00:38,376 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_default_phy [2022-07-14 03:00:38,376 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_default_phy [2022-07-14 03:00:38,377 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-07-14 03:00:38,377 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-07-14 03:00:38,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_75 [2022-07-14 03:00:38,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_75 [2022-07-14 03:00:38,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_66 [2022-07-14 03:00:38,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_66 [2022-07-14 03:00:38,377 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-14 03:00:38,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-14 03:00:38,378 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-14 03:00:38,378 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-14 03:00:38,378 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_check_mode [2022-07-14 03:00:38,378 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_check_mode [2022-07-14 03:00:38,378 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-14 03:00:38,379 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-14 03:00:38,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-14 03:00:38,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-14 03:00:38,380 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-14 03:00:38,380 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-14 03:00:38,381 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-14 03:00:38,381 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-14 03:00:38,381 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-14 03:00:38,382 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-14 03:00:38,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-14 03:00:38,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-14 03:00:38,383 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_remove [2022-07-14 03:00:38,383 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_remove [2022-07-14 03:00:38,383 INFO L130 BoogieDeclarations]: Found specification of procedure sis630_set_eq [2022-07-14 03:00:38,386 INFO L138 BoogieDeclarations]: Found implementation of procedure sis630_set_eq [2022-07-14 03:00:38,386 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_device [2022-07-14 03:00:38,386 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_device [2022-07-14 03:00:38,387 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-14 03:00:38,387 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-14 03:00:38,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 03:00:38,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-14 03:00:38,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-14 03:00:38,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-14 03:00:38,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-14 03:00:38,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sis900_cleanup_module_14_2 [2022-07-14 03:00:38,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sis900_cleanup_module_14_2 [2022-07-14 03:00:38,388 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_tx_ring [2022-07-14 03:00:38,388 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_tx_ring [2022-07-14 03:00:38,388 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-14 03:00:38,388 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-14 03:00:38,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_sis900_private [2022-07-14 03:00:38,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_sis900_private [2022-07-14 03:00:38,389 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-14 03:00:38,389 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-14 03:00:38,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-14 03:00:38,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-14 03:00:38,400 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_mode [2022-07-14 03:00:38,400 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_mode [2022-07-14 03:00:38,400 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-07-14 03:00:38,401 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-07-14 03:00:38,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_sis900_private [2022-07-14 03:00:38,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_sis900_private [2022-07-14 03:00:38,401 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-14 03:00:38,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-14 03:00:38,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-14 03:00:38,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-14 03:00:38,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-14 03:00:38,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-14 03:00:38,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-14 03:00:38,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-14 03:00:38,402 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-14 03:00:38,402 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-14 03:00:38,402 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_interrupt [2022-07-14 03:00:38,402 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_interrupt [2022-07-14 03:00:38,402 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_reset_phy [2022-07-14 03:00:38,403 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_reset_phy [2022-07-14 03:00:38,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-14 03:00:38,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-14 03:00:38,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 03:00:38,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-14 03:00:38,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-14 03:00:38,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-14 03:00:38,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-14 03:00:38,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 03:00:38,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-14 03:00:38,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-14 03:00:38,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 03:00:38,411 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-07-14 03:00:38,411 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-07-14 03:00:38,411 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_open [2022-07-14 03:00:38,412 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_open [2022-07-14 03:00:38,412 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 03:00:38,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 03:00:38,413 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_nway_reset [2022-07-14 03:00:38,413 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_nway_reset [2022-07-14 03:00:38,417 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-14 03:00:38,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-14 03:00:38,417 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-14 03:00:38,418 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-14 03:00:38,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-14 03:00:38,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-14 03:00:38,418 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-07-14 03:00:38,418 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-07-14 03:00:38,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 03:00:38,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 03:00:38,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-14 03:00:38,419 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_close [2022-07-14 03:00:38,419 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_close [2022-07-14 03:00:38,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-14 03:00:38,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-14 03:00:38,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-14 03:00:38,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 03:00:38,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 03:00:38,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-14 03:00:38,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-14 03:00:38,431 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-14 03:00:38,431 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-14 03:00:38,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-14 03:00:38,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-14 03:00:38,432 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_reset [2022-07-14 03:00:38,432 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_reset [2022-07-14 03:00:38,432 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-14 03:00:38,432 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-14 03:00:38,432 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-14 03:00:38,432 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-14 03:00:38,432 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-14 03:00:38,432 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-14 03:00:38,433 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-14 03:00:38,433 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-14 03:00:38,433 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2022-07-14 03:00:38,433 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2022-07-14 03:00:38,433 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-14 03:00:38,433 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-14 03:00:38,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 03:00:38,433 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-14 03:00:38,433 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-14 03:00:38,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_74 [2022-07-14 03:00:38,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_74 [2022-07-14 03:00:38,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 03:00:38,434 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-14 03:00:38,434 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-14 03:00:38,434 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rx_ring [2022-07-14 03:00:38,434 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rx_ring [2022-07-14 03:00:38,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-14 03:00:38,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-14 03:00:38,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-14 03:00:38,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-14 03:00:38,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 03:00:38,435 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-07-14 03:00:38,435 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-07-14 03:00:38,435 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-14 03:00:38,435 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-14 03:00:38,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-14 03:00:38,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-14 03:00:38,435 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hw_addr_random [2022-07-14 03:00:38,436 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hw_addr_random [2022-07-14 03:00:38,436 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-14 03:00:38,436 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-14 03:00:38,436 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-07-14 03:00:38,436 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-07-14 03:00:38,436 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_poll [2022-07-14 03:00:38,436 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_poll [2022-07-14 03:00:38,436 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-14 03:00:38,436 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-14 03:00:38,437 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-14 03:00:38,437 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-14 03:00:38,437 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-07-14 03:00:38,437 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-07-14 03:00:38,437 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-14 03:00:38,437 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-14 03:00:38,437 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 03:00:38,437 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 03:00:38,437 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_resume [2022-07-14 03:00:38,437 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_resume [2022-07-14 03:00:38,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 03:00:38,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 03:00:38,438 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2022-07-14 03:00:38,438 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2022-07-14 03:00:38,438 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_idle [2022-07-14 03:00:38,438 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_idle [2022-07-14 03:00:38,438 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_tx_timeout [2022-07-14 03:00:38,438 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_tx_timeout [2022-07-14 03:00:38,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-14 03:00:38,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-14 03:00:38,439 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-07-14 03:00:38,439 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-07-14 03:00:38,439 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-14 03:00:38,439 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-14 03:00:38,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-14 03:00:38,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-14 03:00:39,315 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 03:00:39,319 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 03:00:39,626 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 03:01:09,070 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-14 03:01:09,175 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 03:01:09,215 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 03:01:09,216 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 03:01:09,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:01:09 BoogieIcfgContainer [2022-07-14 03:01:09,232 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 03:01:09,234 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 03:01:09,234 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 03:01:09,236 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 03:01:09,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 03:00:35" (1/3) ... [2022-07-14 03:01:09,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b308bf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 03:01:09, skipping insertion in model container [2022-07-14 03:01:09,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:00:37" (2/3) ... [2022-07-14 03:01:09,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b308bf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 03:01:09, skipping insertion in model container [2022-07-14 03:01:09,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:01:09" (3/3) ... [2022-07-14 03:01:09,238 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i [2022-07-14 03:01:09,253 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 03:01:09,254 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-14 03:01:09,345 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 03:01:09,349 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@77189de7, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@71dac074 [2022-07-14 03:01:09,350 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-14 03:01:09,362 INFO L276 IsEmpty]: Start isEmpty. Operand has 1960 states, 1339 states have (on average 1.2763256161314414) internal successors, (1709), 1366 states have internal predecessors, (1709), 526 states have call successors, (526), 93 states have call predecessors, (526), 92 states have return successors, (520), 512 states have call predecessors, (520), 520 states have call successors, (520) [2022-07-14 03:01:09,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-07-14 03:01:09,379 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:01:09,380 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] [2022-07-14 03:01:09,380 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)] === [2022-07-14 03:01:09,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:01:09,385 INFO L85 PathProgramCache]: Analyzing trace with hash -511834341, now seen corresponding path program 1 times [2022-07-14 03:01:09,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:01:09,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1527298471] [2022-07-14 03:01:09,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:01:09,405 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:01:09,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:01:09,408 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) [2022-07-14 03:01:09,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-14 03:01:10,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:01:10,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 1149 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 03:01:10,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:01:10,851 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2022-07-14 03:01:10,852 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:01:10,852 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:01:10,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1527298471] [2022-07-14 03:01:10,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1527298471] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:01:10,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:01:10,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 03:01:10,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985438540] [2022-07-14 03:01:10,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:01:10,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 03:01:10,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:01:10,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 03:01:10,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:01:10,895 INFO L87 Difference]: Start difference. First operand has 1960 states, 1339 states have (on average 1.2763256161314414) internal successors, (1709), 1366 states have internal predecessors, (1709), 526 states have call successors, (526), 93 states have call predecessors, (526), 92 states have return successors, (520), 512 states have call predecessors, (520), 520 states have call successors, (520) 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) [2022-07-14 03:01:11,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:01:11,402 INFO L93 Difference]: Finished difference Result 5732 states and 8177 transitions. [2022-07-14 03:01:11,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 03:01:11,405 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 [2022-07-14 03:01:11,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:01:11,453 INFO L225 Difference]: With dead ends: 5732 [2022-07-14 03:01:11,455 INFO L226 Difference]: Without dead ends: 3789 [2022-07-14 03:01:11,521 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 [2022-07-14 03:01:11,526 INFO L413 NwaCegarLoop]: 3232 mSDtfsCounter, 2605 mSDsluCounter, 2689 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2605 SdHoareTripleChecker+Valid, 5921 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:01:11,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2605 Valid, 5921 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:01:11,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3789 states. [2022-07-14 03:01:11,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3789 to 3785. [2022-07-14 03:01:11,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3785 states, 2605 states have (on average 1.2706333973128598) internal successors, (3310), 2658 states have internal predecessors, (3310), 997 states have call successors, (997), 181 states have call predecessors, (997), 180 states have return successors, (993), 977 states have call predecessors, (993), 993 states have call successors, (993) [2022-07-14 03:01:11,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3785 states to 3785 states and 5300 transitions. [2022-07-14 03:01:11,792 INFO L78 Accepts]: Start accepts. Automaton has 3785 states and 5300 transitions. Word has length 149 [2022-07-14 03:01:11,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:01:11,793 INFO L495 AbstractCegarLoop]: Abstraction has 3785 states and 5300 transitions. [2022-07-14 03:01:11,794 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) [2022-07-14 03:01:11,794 INFO L276 IsEmpty]: Start isEmpty. Operand 3785 states and 5300 transitions. [2022-07-14 03:01:11,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-07-14 03:01:11,797 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:01:11,797 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] [2022-07-14 03:01:11,840 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-14 03:01:12,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:01:12,020 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)] === [2022-07-14 03:01:12,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:01:12,020 INFO L85 PathProgramCache]: Analyzing trace with hash 474246430, now seen corresponding path program 1 times [2022-07-14 03:01:12,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:01:12,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [819740957] [2022-07-14 03:01:12,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:01:12,023 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:01:12,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:01:12,034 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) [2022-07-14 03:01:12,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-14 03:01:13,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:01:13,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 1198 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 03:01:13,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:01:13,216 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2022-07-14 03:01:13,216 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:01:13,216 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:01:13,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [819740957] [2022-07-14 03:01:13,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [819740957] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:01:13,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:01:13,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 03:01:13,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907457158] [2022-07-14 03:01:13,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:01:13,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 03:01:13,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:01:13,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 03:01:13,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:01:13,218 INFO L87 Difference]: Start difference. First operand 3785 states and 5300 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, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-14 03:01:13,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:01:13,579 INFO L93 Difference]: Finished difference Result 11169 states and 15652 transitions. [2022-07-14 03:01:13,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 03:01:13,579 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, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 153 [2022-07-14 03:01:13,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:01:13,712 INFO L225 Difference]: With dead ends: 11169 [2022-07-14 03:01:13,712 INFO L226 Difference]: Without dead ends: 7411 [2022-07-14 03:01:13,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:01:13,730 INFO L413 NwaCegarLoop]: 3243 mSDtfsCounter, 2650 mSDsluCounter, 2644 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2650 SdHoareTripleChecker+Valid, 5887 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:01:13,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2650 Valid, 5887 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:01:13,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7411 states. [2022-07-14 03:01:13,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7411 to 7382. [2022-07-14 03:01:13,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7382 states, 5092 states have (on average 1.2723880597014925) internal successors, (6479), 5200 states have internal predecessors, (6479), 1932 states have call successors, (1932), 360 states have call predecessors, (1932), 355 states have return successors, (1934), 1883 states have call predecessors, (1934), 1928 states have call successors, (1934) [2022-07-14 03:01:13,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7382 states to 7382 states and 10345 transitions. [2022-07-14 03:01:13,969 INFO L78 Accepts]: Start accepts. Automaton has 7382 states and 10345 transitions. Word has length 153 [2022-07-14 03:01:13,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:01:13,970 INFO L495 AbstractCegarLoop]: Abstraction has 7382 states and 10345 transitions. [2022-07-14 03:01:13,970 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, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-14 03:01:13,970 INFO L276 IsEmpty]: Start isEmpty. Operand 7382 states and 10345 transitions. [2022-07-14 03:01:13,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-14 03:01:13,974 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:01:13,974 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] [2022-07-14 03:01:14,004 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-07-14 03:01:14,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:01:14,190 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)] === [2022-07-14 03:01:14,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:01:14,191 INFO L85 PathProgramCache]: Analyzing trace with hash 501804944, now seen corresponding path program 1 times [2022-07-14 03:01:14,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:01:14,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1336797610] [2022-07-14 03:01:14,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:01:14,194 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:01:14,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:01:14,205 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) [2022-07-14 03:01:14,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-14 03:01:15,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:01:15,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 1187 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 03:01:15,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:01:15,412 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2022-07-14 03:01:15,412 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:01:15,412 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:01:15,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1336797610] [2022-07-14 03:01:15,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1336797610] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:01:15,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:01:15,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 03:01:15,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101297939] [2022-07-14 03:01:15,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:01:15,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 03:01:15,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:01:15,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 03:01:15,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:01:15,417 INFO L87 Difference]: Start difference. First operand 7382 states and 10345 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-14 03:01:16,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:01:16,188 INFO L93 Difference]: Finished difference Result 20898 states and 29297 transitions. [2022-07-14 03:01:16,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 03:01:16,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 156 [2022-07-14 03:01:16,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:01:16,285 INFO L225 Difference]: With dead ends: 20898 [2022-07-14 03:01:16,286 INFO L226 Difference]: Without dead ends: 13543 [2022-07-14 03:01:16,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:01:16,332 INFO L413 NwaCegarLoop]: 3177 mSDtfsCounter, 2268 mSDsluCounter, 2627 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2268 SdHoareTripleChecker+Valid, 5804 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 03:01:16,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2268 Valid, 5804 Invalid, 77 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 03:01:16,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13543 states. [2022-07-14 03:01:16,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13543 to 13512. [2022-07-14 03:01:16,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13512 states, 9242 states have (on average 1.2716944384332396) internal successors, (11753), 9448 states have internal predecessors, (11753), 3584 states have call successors, (3584), 694 states have call predecessors, (3584), 683 states have return successors, (3594), 3487 states have call predecessors, (3594), 3580 states have call successors, (3594) [2022-07-14 03:01:16,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13512 states to 13512 states and 18931 transitions. [2022-07-14 03:01:16,963 INFO L78 Accepts]: Start accepts. Automaton has 13512 states and 18931 transitions. Word has length 156 [2022-07-14 03:01:16,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:01:16,964 INFO L495 AbstractCegarLoop]: Abstraction has 13512 states and 18931 transitions. [2022-07-14 03:01:16,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-14 03:01:16,965 INFO L276 IsEmpty]: Start isEmpty. Operand 13512 states and 18931 transitions. [2022-07-14 03:01:16,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-07-14 03:01:16,967 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:01:16,967 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 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] [2022-07-14 03:01:16,998 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-14 03:01:17,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:01:17,184 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)] === [2022-07-14 03:01:17,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:01:17,184 INFO L85 PathProgramCache]: Analyzing trace with hash -585811610, now seen corresponding path program 1 times [2022-07-14 03:01:17,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:01:17,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1170207117] [2022-07-14 03:01:17,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:01:17,185 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:01:17,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:01:17,192 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) [2022-07-14 03:01:17,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-14 03:01:18,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:01:18,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 1270 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 03:01:18,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:01:18,302 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2022-07-14 03:01:18,302 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:01:18,302 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:01:18,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1170207117] [2022-07-14 03:01:18,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1170207117] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:01:18,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:01:18,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 03:01:18,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158117694] [2022-07-14 03:01:18,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:01:18,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 03:01:18,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:01:18,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 03:01:18,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:01:18,304 INFO L87 Difference]: Start difference. First operand 13512 states and 18931 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-14 03:01:18,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:01:18,985 INFO L93 Difference]: Finished difference Result 24124 states and 33746 transitions. [2022-07-14 03:01:18,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 03:01:18,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 165 [2022-07-14 03:01:18,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:01:19,038 INFO L225 Difference]: With dead ends: 24124 [2022-07-14 03:01:19,038 INFO L226 Difference]: Without dead ends: 10639 [2022-07-14 03:01:19,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:01:19,091 INFO L413 NwaCegarLoop]: 3786 mSDtfsCounter, 1536 mSDsluCounter, 2660 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1536 SdHoareTripleChecker+Valid, 6446 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 03:01:19,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1536 Valid, 6446 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 03:01:19,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10639 states. [2022-07-14 03:01:19,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10639 to 10608. [2022-07-14 03:01:19,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10608 states, 7330 states have (on average 1.2724420190995906) internal successors, (9327), 7483 states have internal predecessors, (9327), 2702 states have call successors, (2702), 583 states have call predecessors, (2702), 573 states have return successors, (2705), 2623 states have call predecessors, (2705), 2698 states have call successors, (2705) [2022-07-14 03:01:19,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10608 states to 10608 states and 14734 transitions. [2022-07-14 03:01:19,493 INFO L78 Accepts]: Start accepts. Automaton has 10608 states and 14734 transitions. Word has length 165 [2022-07-14 03:01:19,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:01:19,494 INFO L495 AbstractCegarLoop]: Abstraction has 10608 states and 14734 transitions. [2022-07-14 03:01:19,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-14 03:01:19,494 INFO L276 IsEmpty]: Start isEmpty. Operand 10608 states and 14734 transitions. [2022-07-14 03:01:19,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-07-14 03:01:19,497 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:01:19,497 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 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] [2022-07-14 03:01:19,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-14 03:01:19,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:01:19,721 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)] === [2022-07-14 03:01:19,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:01:19,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1098294467, now seen corresponding path program 1 times [2022-07-14 03:01:19,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:01:19,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [952903820] [2022-07-14 03:01:19,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:01:19,722 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:01:19,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:01:19,724 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) [2022-07-14 03:01:19,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-14 03:01:20,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:01:20,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 1274 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:01:20,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:01:21,376 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 679 trivial. 0 not checked. [2022-07-14 03:01:21,376 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:01:21,376 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:01:21,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [952903820] [2022-07-14 03:01:21,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [952903820] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:01:21,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:01:21,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 03:01:21,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103583428] [2022-07-14 03:01:21,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:01:21,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:01:21,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:01:21,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:01:21,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 03:01:21,377 INFO L87 Difference]: Start difference. First operand 10608 states and 14734 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-07-14 03:01:21,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:01:21,936 INFO L93 Difference]: Finished difference Result 10614 states and 14739 transitions. [2022-07-14 03:01:21,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 03:01:21,937 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 205 [2022-07-14 03:01:21,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:01:21,984 INFO L225 Difference]: With dead ends: 10614 [2022-07-14 03:01:21,984 INFO L226 Difference]: Without dead ends: 10612 [2022-07-14 03:01:21,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:01:21,993 INFO L413 NwaCegarLoop]: 2722 mSDtfsCounter, 2638 mSDsluCounter, 5432 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2639 SdHoareTripleChecker+Valid, 8154 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 03:01:21,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2639 Valid, 8154 Invalid, 20 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 03:01:22,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10612 states. [2022-07-14 03:01:22,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10612 to 10612. [2022-07-14 03:01:22,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10612 states, 7333 states have (on average 1.272330560480022) internal successors, (9330), 7486 states have internal predecessors, (9330), 2702 states have call successors, (2702), 584 states have call predecessors, (2702), 574 states have return successors, (2705), 2623 states have call predecessors, (2705), 2698 states have call successors, (2705) [2022-07-14 03:01:22,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10612 states to 10612 states and 14737 transitions. [2022-07-14 03:01:22,480 INFO L78 Accepts]: Start accepts. Automaton has 10612 states and 14737 transitions. Word has length 205 [2022-07-14 03:01:22,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:01:22,481 INFO L495 AbstractCegarLoop]: Abstraction has 10612 states and 14737 transitions. [2022-07-14 03:01:22,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-07-14 03:01:22,482 INFO L276 IsEmpty]: Start isEmpty. Operand 10612 states and 14737 transitions. [2022-07-14 03:01:22,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-07-14 03:01:22,484 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:01:22,485 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 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] [2022-07-14 03:01:22,512 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-14 03:01:22,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:01:22,704 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)] === [2022-07-14 03:01:22,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:01:22,704 INFO L85 PathProgramCache]: Analyzing trace with hash 2033981501, now seen corresponding path program 1 times [2022-07-14 03:01:22,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:01:22,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1518349939] [2022-07-14 03:01:22,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:01:22,705 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:01:22,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:01:22,707 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) [2022-07-14 03:01:22,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-14 03:01:23,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:01:23,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 1281 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:01:23,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:01:24,239 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 679 trivial. 0 not checked. [2022-07-14 03:01:24,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:01:24,554 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 679 trivial. 0 not checked. [2022-07-14 03:01:24,554 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:01:24,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1518349939] [2022-07-14 03:01:24,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1518349939] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:01:24,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:01:24,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:01:24,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321247831] [2022-07-14 03:01:24,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:01:24,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:01:24,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:01:24,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:01:24,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:01:24,555 INFO L87 Difference]: Start difference. First operand 10612 states and 14737 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 03:01:24,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:01:24,870 INFO L93 Difference]: Finished difference Result 10618 states and 14742 transitions. [2022-07-14 03:01:24,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:01:24,871 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 210 [2022-07-14 03:01:24,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:01:24,909 INFO L225 Difference]: With dead ends: 10618 [2022-07-14 03:01:24,909 INFO L226 Difference]: Without dead ends: 10616 [2022-07-14 03:01:24,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:01:24,918 INFO L413 NwaCegarLoop]: 2725 mSDtfsCounter, 2658 mSDsluCounter, 5431 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2668 SdHoareTripleChecker+Valid, 8156 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 03:01:24,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2668 Valid, 8156 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 03:01:24,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10616 states. [2022-07-14 03:01:25,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10616 to 10616. [2022-07-14 03:01:25,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10616 states, 7336 states have (on average 1.2722191930207198) internal successors, (9333), 7489 states have internal predecessors, (9333), 2702 states have call successors, (2702), 585 states have call predecessors, (2702), 575 states have return successors, (2705), 2623 states have call predecessors, (2705), 2698 states have call successors, (2705) [2022-07-14 03:01:25,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10616 states to 10616 states and 14740 transitions. [2022-07-14 03:01:25,249 INFO L78 Accepts]: Start accepts. Automaton has 10616 states and 14740 transitions. Word has length 210 [2022-07-14 03:01:25,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:01:25,250 INFO L495 AbstractCegarLoop]: Abstraction has 10616 states and 14740 transitions. [2022-07-14 03:01:25,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 03:01:25,251 INFO L276 IsEmpty]: Start isEmpty. Operand 10616 states and 14740 transitions. [2022-07-14 03:01:25,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-07-14 03:01:25,253 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:01:25,254 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 3, 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] [2022-07-14 03:01:25,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-14 03:01:25,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:01:25,468 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)] === [2022-07-14 03:01:25,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:01:25,469 INFO L85 PathProgramCache]: Analyzing trace with hash 567579389, now seen corresponding path program 1 times [2022-07-14 03:01:25,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:01:25,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [307990906] [2022-07-14 03:01:25,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:01:25,470 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:01:25,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:01:25,472 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) [2022-07-14 03:01:25,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-14 03:01:26,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:01:26,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 1288 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:01:26,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:01:27,208 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2022-07-14 03:01:27,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:01:27,629 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2022-07-14 03:01:27,630 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:01:27,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [307990906] [2022-07-14 03:01:27,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [307990906] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:01:27,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:01:27,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:01:27,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596881338] [2022-07-14 03:01:27,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:01:27,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:01:27,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:01:27,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:01:27,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:01:27,631 INFO L87 Difference]: Start difference. First operand 10616 states and 14740 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-14 03:01:28,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:01:28,081 INFO L93 Difference]: Finished difference Result 10622 states and 14745 transitions. [2022-07-14 03:01:28,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:01:28,081 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 215 [2022-07-14 03:01:28,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:01:28,120 INFO L225 Difference]: With dead ends: 10622 [2022-07-14 03:01:28,120 INFO L226 Difference]: Without dead ends: 10620 [2022-07-14 03:01:28,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 423 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:01:28,127 INFO L413 NwaCegarLoop]: 2725 mSDtfsCounter, 2658 mSDsluCounter, 5431 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2667 SdHoareTripleChecker+Valid, 8156 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 03:01:28,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2667 Valid, 8156 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 03:01:28,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10620 states. [2022-07-14 03:01:28,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10620 to 10620. [2022-07-14 03:01:28,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10620 states, 7339 states have (on average 1.2721079166098923) internal successors, (9336), 7492 states have internal predecessors, (9336), 2702 states have call successors, (2702), 586 states have call predecessors, (2702), 576 states have return successors, (2705), 2623 states have call predecessors, (2705), 2698 states have call successors, (2705) [2022-07-14 03:01:28,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10620 states to 10620 states and 14743 transitions. [2022-07-14 03:01:28,536 INFO L78 Accepts]: Start accepts. Automaton has 10620 states and 14743 transitions. Word has length 215 [2022-07-14 03:01:28,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:01:28,536 INFO L495 AbstractCegarLoop]: Abstraction has 10620 states and 14743 transitions. [2022-07-14 03:01:28,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-14 03:01:28,537 INFO L276 IsEmpty]: Start isEmpty. Operand 10620 states and 14743 transitions. [2022-07-14 03:01:28,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-07-14 03:01:28,540 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:01:28,540 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 5, 5, 5, 4, 3, 3, 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] [2022-07-14 03:01:28,570 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-14 03:01:28,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:01:28,820 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)] === [2022-07-14 03:01:28,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:01:28,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1378185684, now seen corresponding path program 1 times [2022-07-14 03:01:28,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:01:28,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [774426385] [2022-07-14 03:01:28,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:01:28,822 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:01:28,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:01:28,823 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) [2022-07-14 03:01:28,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-14 03:01:29,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:01:29,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 1342 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 03:01:29,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:01:30,016 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2022-07-14 03:01:30,017 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:01:30,017 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:01:30,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [774426385] [2022-07-14 03:01:30,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [774426385] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:01:30,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:01:30,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 03:01:30,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327503848] [2022-07-14 03:01:30,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:01:30,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 03:01:30,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:01:30,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 03:01:30,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:01:30,019 INFO L87 Difference]: Start difference. First operand 10620 states and 14743 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-14 03:01:30,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:01:30,632 INFO L93 Difference]: Finished difference Result 30593 states and 42516 transitions. [2022-07-14 03:01:30,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 03:01:30,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 231 [2022-07-14 03:01:30,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:01:30,702 INFO L225 Difference]: With dead ends: 30593 [2022-07-14 03:01:30,702 INFO L226 Difference]: Without dead ends: 20367 [2022-07-14 03:01:30,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:01:30,732 INFO L413 NwaCegarLoop]: 3689 mSDtfsCounter, 2600 mSDsluCounter, 2700 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2600 SdHoareTripleChecker+Valid, 6389 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:01:30,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2600 Valid, 6389 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:01:30,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20367 states. [2022-07-14 03:01:31,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20367 to 20333. [2022-07-14 03:01:31,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20333 states, 14087 states have (on average 1.272733726130475) internal successors, (17929), 14361 states have internal predecessors, (17929), 5145 states have call successors, (5145), 1113 states have call predecessors, (5145), 1098 states have return successors, (5155), 5020 states have call predecessors, (5155), 5141 states have call successors, (5155) [2022-07-14 03:01:31,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20333 states to 20333 states and 28229 transitions. [2022-07-14 03:01:31,357 INFO L78 Accepts]: Start accepts. Automaton has 20333 states and 28229 transitions. Word has length 231 [2022-07-14 03:01:31,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:01:31,357 INFO L495 AbstractCegarLoop]: Abstraction has 20333 states and 28229 transitions. [2022-07-14 03:01:31,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-14 03:01:31,358 INFO L276 IsEmpty]: Start isEmpty. Operand 20333 states and 28229 transitions. [2022-07-14 03:01:31,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-07-14 03:01:31,362 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:01:31,362 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 5, 5, 5, 4, 3, 3, 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] [2022-07-14 03:01:31,390 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-14 03:01:31,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:01:31,587 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)] === [2022-07-14 03:01:31,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:01:31,588 INFO L85 PathProgramCache]: Analyzing trace with hash 650400426, now seen corresponding path program 1 times [2022-07-14 03:01:31,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:01:31,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1484156586] [2022-07-14 03:01:31,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:01:31,589 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:01:31,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:01:31,600 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) [2022-07-14 03:01:31,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-14 03:01:32,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:01:32,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 1342 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 03:01:32,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:01:33,023 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2022-07-14 03:01:33,023 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:01:33,032 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:01:33,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1484156586] [2022-07-14 03:01:33,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1484156586] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:01:33,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:01:33,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 03:01:33,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515014249] [2022-07-14 03:01:33,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:01:33,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 03:01:33,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:01:33,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 03:01:33,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:01:33,036 INFO L87 Difference]: Start difference. First operand 20333 states and 28229 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-14 03:01:34,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:01:34,020 INFO L93 Difference]: Finished difference Result 49981 states and 69435 transitions. [2022-07-14 03:01:34,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 03:01:34,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 231 [2022-07-14 03:01:34,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:01:34,190 INFO L225 Difference]: With dead ends: 49981 [2022-07-14 03:01:34,190 INFO L226 Difference]: Without dead ends: 30042 [2022-07-14 03:01:34,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:01:34,277 INFO L413 NwaCegarLoop]: 5222 mSDtfsCounter, 2573 mSDsluCounter, 2698 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2573 SdHoareTripleChecker+Valid, 7920 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:01:34,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2573 Valid, 7920 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:01:34,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30042 states. [2022-07-14 03:01:35,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30042 to 30038. [2022-07-14 03:01:35,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30038 states, 20827 states have (on average 1.2730590099390215) internal successors, (26514), 21222 states have internal predecessors, (26514), 7588 states have call successors, (7588), 1640 states have call predecessors, (7588), 1620 states have return successors, (7605), 7417 states have call predecessors, (7605), 7584 states have call successors, (7605) [2022-07-14 03:01:35,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30038 states to 30038 states and 41707 transitions. [2022-07-14 03:01:35,584 INFO L78 Accepts]: Start accepts. Automaton has 30038 states and 41707 transitions. Word has length 231 [2022-07-14 03:01:35,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:01:35,584 INFO L495 AbstractCegarLoop]: Abstraction has 30038 states and 41707 transitions. [2022-07-14 03:01:35,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-14 03:01:35,585 INFO L276 IsEmpty]: Start isEmpty. Operand 30038 states and 41707 transitions. [2022-07-14 03:01:35,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-07-14 03:01:35,588 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:01:35,589 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 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] [2022-07-14 03:01:35,633 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-14 03:01:35,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:01:35,803 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)] === [2022-07-14 03:01:35,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:01:35,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1892161539, now seen corresponding path program 1 times [2022-07-14 03:01:35,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:01:35,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [779549784] [2022-07-14 03:01:35,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:01:35,805 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:01:35,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:01:35,807 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) [2022-07-14 03:01:35,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-14 03:01:36,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:01:36,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 1295 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:01:36,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:01:37,753 INFO L134 CoverageAnalysis]: Checked inductivity of 697 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 691 trivial. 0 not checked. [2022-07-14 03:01:37,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:01:38,016 INFO L134 CoverageAnalysis]: Checked inductivity of 697 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 691 trivial. 0 not checked. [2022-07-14 03:01:38,017 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:01:38,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [779549784] [2022-07-14 03:01:38,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [779549784] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:01:38,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:01:38,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:01:38,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650328108] [2022-07-14 03:01:38,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:01:38,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:01:38,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:01:38,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:01:38,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:01:38,019 INFO L87 Difference]: Start difference. First operand 30038 states and 41707 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-14 03:01:38,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:01:38,768 INFO L93 Difference]: Finished difference Result 30044 states and 41712 transitions. [2022-07-14 03:01:38,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:01:38,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 220 [2022-07-14 03:01:38,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:01:38,889 INFO L225 Difference]: With dead ends: 30044 [2022-07-14 03:01:38,889 INFO L226 Difference]: Without dead ends: 30042 [2022-07-14 03:01:38,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 433 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:01:38,910 INFO L413 NwaCegarLoop]: 2725 mSDtfsCounter, 2658 mSDsluCounter, 5431 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2666 SdHoareTripleChecker+Valid, 8156 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 03:01:38,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2666 Valid, 8156 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 03:01:38,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30042 states. [2022-07-14 03:01:39,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30042 to 30042. [2022-07-14 03:01:39,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30042 states, 20830 states have (on average 1.273019683149304) internal successors, (26517), 21225 states have internal predecessors, (26517), 7588 states have call successors, (7588), 1641 states have call predecessors, (7588), 1621 states have return successors, (7605), 7417 states have call predecessors, (7605), 7584 states have call successors, (7605) [2022-07-14 03:01:39,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30042 states to 30042 states and 41710 transitions. [2022-07-14 03:01:39,991 INFO L78 Accepts]: Start accepts. Automaton has 30042 states and 41710 transitions. Word has length 220 [2022-07-14 03:01:39,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:01:39,992 INFO L495 AbstractCegarLoop]: Abstraction has 30042 states and 41710 transitions. [2022-07-14 03:01:39,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-14 03:01:39,993 INFO L276 IsEmpty]: Start isEmpty. Operand 30042 states and 41710 transitions. [2022-07-14 03:01:39,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-07-14 03:01:39,996 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:01:39,997 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 5, 4, 4, 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] [2022-07-14 03:01:40,028 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-14 03:01:40,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:01:40,220 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)] === [2022-07-14 03:01:40,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:01:40,221 INFO L85 PathProgramCache]: Analyzing trace with hash 331270845, now seen corresponding path program 1 times [2022-07-14 03:01:40,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:01:40,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1049758613] [2022-07-14 03:01:40,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:01:40,222 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:01:40,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:01:40,223 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) [2022-07-14 03:01:40,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-14 03:01:41,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:01:41,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 1302 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:01:41,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:01:41,726 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2022-07-14 03:01:41,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:01:42,020 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2022-07-14 03:01:42,020 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:01:42,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1049758613] [2022-07-14 03:01:42,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1049758613] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:01:42,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:01:42,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:01:42,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177606903] [2022-07-14 03:01:42,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:01:42,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:01:42,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:01:42,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:01:42,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:01:42,022 INFO L87 Difference]: Start difference. First operand 30042 states and 41710 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-14 03:01:42,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:01:42,834 INFO L93 Difference]: Finished difference Result 30048 states and 41715 transitions. [2022-07-14 03:01:42,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:01:42,835 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 225 [2022-07-14 03:01:42,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:01:42,962 INFO L225 Difference]: With dead ends: 30048 [2022-07-14 03:01:42,962 INFO L226 Difference]: Without dead ends: 30046 [2022-07-14 03:01:42,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:01:42,993 INFO L413 NwaCegarLoop]: 2725 mSDtfsCounter, 2658 mSDsluCounter, 5431 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2665 SdHoareTripleChecker+Valid, 8156 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 03:01:42,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2665 Valid, 8156 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 03:01:43,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30046 states. [2022-07-14 03:01:44,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30046 to 30046. [2022-07-14 03:01:44,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30046 states, 20833 states have (on average 1.272980367685883) internal successors, (26520), 21228 states have internal predecessors, (26520), 7588 states have call successors, (7588), 1642 states have call predecessors, (7588), 1622 states have return successors, (7605), 7417 states have call predecessors, (7605), 7584 states have call successors, (7605) [2022-07-14 03:01:44,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30046 states to 30046 states and 41713 transitions. [2022-07-14 03:01:44,267 INFO L78 Accepts]: Start accepts. Automaton has 30046 states and 41713 transitions. Word has length 225 [2022-07-14 03:01:44,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:01:44,268 INFO L495 AbstractCegarLoop]: Abstraction has 30046 states and 41713 transitions. [2022-07-14 03:01:44,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-14 03:01:44,268 INFO L276 IsEmpty]: Start isEmpty. Operand 30046 states and 41713 transitions. [2022-07-14 03:01:44,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-07-14 03:01:44,299 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:01:44,299 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 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] [2022-07-14 03:01:44,324 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-14 03:01:44,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:01:44,517 INFO L420 AbstractCegarLoop]: === Iteration 12 === 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)] === [2022-07-14 03:01:44,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:01:44,517 INFO L85 PathProgramCache]: Analyzing trace with hash 800071140, now seen corresponding path program 1 times [2022-07-14 03:01:44,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:01:44,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [614907036] [2022-07-14 03:01:44,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:01:44,519 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:01:44,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:01:44,521 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) [2022-07-14 03:01:44,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-14 03:01:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:01:45,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 1412 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 03:01:45,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:01:45,732 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 582 trivial. 0 not checked. [2022-07-14 03:01:45,732 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 03:01:45,732 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:01:45,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [614907036] [2022-07-14 03:01:45,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [614907036] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:01:45,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:01:45,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 03:01:45,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780622130] [2022-07-14 03:01:45,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:01:45,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 03:01:45,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:01:45,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 03:01:45,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:01:45,733 INFO L87 Difference]: Start difference. First operand 30046 states and 41713 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-14 03:01:47,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:01:47,192 INFO L93 Difference]: Finished difference Result 69309 states and 96173 transitions. [2022-07-14 03:01:47,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 03:01:47,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 229 [2022-07-14 03:01:47,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:01:47,315 INFO L225 Difference]: With dead ends: 69309 [2022-07-14 03:01:47,315 INFO L226 Difference]: Without dead ends: 39657 [2022-07-14 03:01:47,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 03:01:47,388 INFO L413 NwaCegarLoop]: 4199 mSDtfsCounter, 1520 mSDsluCounter, 2661 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 6860 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 03:01:47,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1520 Valid, 6860 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 03:01:47,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39657 states. [2022-07-14 03:01:48,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39657 to 39606. [2022-07-14 03:01:48,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39606 states, 27615 states have (on average 1.2736556219445954) internal successors, (35172), 28101 states have internal predecessors, (35172), 9790 states have call successors, (9790), 2222 states have call predecessors, (9790), 2198 states have return successors, (9807), 9587 states have call predecessors, (9807), 9786 states have call successors, (9807) [2022-07-14 03:01:48,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39606 states to 39606 states and 54769 transitions. [2022-07-14 03:01:48,609 INFO L78 Accepts]: Start accepts. Automaton has 39606 states and 54769 transitions. Word has length 229 [2022-07-14 03:01:48,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:01:48,610 INFO L495 AbstractCegarLoop]: Abstraction has 39606 states and 54769 transitions. [2022-07-14 03:01:48,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-14 03:01:48,611 INFO L276 IsEmpty]: Start isEmpty. Operand 39606 states and 54769 transitions. [2022-07-14 03:01:48,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-07-14 03:01:48,636 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:01:48,637 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 6, 5, 5, 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] [2022-07-14 03:01:48,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-14 03:01:48,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:01:48,854 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)] === [2022-07-14 03:01:48,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:01:48,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1643427773, now seen corresponding path program 1 times [2022-07-14 03:01:48,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:01:48,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [803884075] [2022-07-14 03:01:48,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:01:48,856 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:01:48,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:01:48,864 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) [2022-07-14 03:01:48,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-14 03:01:49,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:01:49,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 1309 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:01:49,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:01:50,681 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 719 trivial. 0 not checked. [2022-07-14 03:01:50,681 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:01:51,062 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 719 trivial. 0 not checked. [2022-07-14 03:01:51,063 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:01:51,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [803884075] [2022-07-14 03:01:51,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [803884075] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:01:51,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:01:51,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:01:51,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459944688] [2022-07-14 03:01:51,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:01:51,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:01:51,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:01:51,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:01:51,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:01:51,064 INFO L87 Difference]: Start difference. First operand 39606 states and 54769 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-14 03:01:52,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:01:52,386 INFO L93 Difference]: Finished difference Result 39612 states and 54774 transitions. [2022-07-14 03:01:52,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:01:52,387 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 230 [2022-07-14 03:01:52,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:01:52,515 INFO L225 Difference]: With dead ends: 39612 [2022-07-14 03:01:52,516 INFO L226 Difference]: Without dead ends: 39610 [2022-07-14 03:01:52,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 453 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:01:52,540 INFO L413 NwaCegarLoop]: 2725 mSDtfsCounter, 2658 mSDsluCounter, 5431 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2664 SdHoareTripleChecker+Valid, 8156 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 03:01:52,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2664 Valid, 8156 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 03:01:52,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39610 states. [2022-07-14 03:01:53,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39610 to 39610. [2022-07-14 03:01:53,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39610 states, 27618 states have (on average 1.2736258961546818) internal successors, (35175), 28104 states have internal predecessors, (35175), 9790 states have call successors, (9790), 2223 states have call predecessors, (9790), 2199 states have return successors, (9807), 9587 states have call predecessors, (9807), 9786 states have call successors, (9807) [2022-07-14 03:01:54,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39610 states to 39610 states and 54772 transitions. [2022-07-14 03:01:54,339 INFO L78 Accepts]: Start accepts. Automaton has 39610 states and 54772 transitions. Word has length 230 [2022-07-14 03:01:54,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:01:54,339 INFO L495 AbstractCegarLoop]: Abstraction has 39610 states and 54772 transitions. [2022-07-14 03:01:54,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-14 03:01:54,340 INFO L276 IsEmpty]: Start isEmpty. Operand 39610 states and 54772 transitions. [2022-07-14 03:01:54,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-07-14 03:01:54,342 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:01:54,343 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 7, 6, 6, 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] [2022-07-14 03:01:54,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-14 03:01:54,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:01:54,567 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)] === [2022-07-14 03:01:54,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:01:54,568 INFO L85 PathProgramCache]: Analyzing trace with hash 428343933, now seen corresponding path program 1 times [2022-07-14 03:01:54,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:01:54,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1938363263] [2022-07-14 03:01:54,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:01:54,569 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:01:54,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:01:54,572 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) [2022-07-14 03:01:54,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-14 03:01:55,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:01:55,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 1316 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:01:55,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:01:56,240 INFO L134 CoverageAnalysis]: Checked inductivity of 751 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 739 trivial. 0 not checked. [2022-07-14 03:01:56,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:01:56,503 INFO L134 CoverageAnalysis]: Checked inductivity of 751 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 739 trivial. 0 not checked. [2022-07-14 03:01:56,504 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:01:56,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1938363263] [2022-07-14 03:01:56,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1938363263] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:01:56,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:01:56,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:01:56,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050520597] [2022-07-14 03:01:56,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:01:56,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:01:56,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:01:56,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:01:56,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:01:56,505 INFO L87 Difference]: Start difference. First operand 39610 states and 54772 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-14 03:01:57,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:01:57,576 INFO L93 Difference]: Finished difference Result 41497 states and 56577 transitions. [2022-07-14 03:01:57,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:01:57,577 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 235 [2022-07-14 03:01:57,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:01:57,703 INFO L225 Difference]: With dead ends: 41497 [2022-07-14 03:01:57,703 INFO L226 Difference]: Without dead ends: 41495 [2022-07-14 03:01:57,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 471 GetRequests, 463 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:01:57,723 INFO L413 NwaCegarLoop]: 2820 mSDtfsCounter, 2378 mSDsluCounter, 6048 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2383 SdHoareTripleChecker+Valid, 8868 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 03:01:57,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2383 Valid, 8868 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 03:01:57,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41495 states. [2022-07-14 03:01:59,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41495 to 41495. [2022-07-14 03:01:59,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41495 states, 28905 states have (on average 1.26476388168137) internal successors, (36558), 29397 states have internal predecessors, (36558), 10000 states have call successors, (10000), 2611 states have call predecessors, (10000), 2587 states have return successors, (10017), 9797 states have call predecessors, (10017), 9996 states have call successors, (10017) [2022-07-14 03:01:59,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41495 states to 41495 states and 56575 transitions. [2022-07-14 03:01:59,289 INFO L78 Accepts]: Start accepts. Automaton has 41495 states and 56575 transitions. Word has length 235 [2022-07-14 03:01:59,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:01:59,290 INFO L495 AbstractCegarLoop]: Abstraction has 41495 states and 56575 transitions. [2022-07-14 03:01:59,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-14 03:01:59,291 INFO L276 IsEmpty]: Start isEmpty. Operand 41495 states and 56575 transitions. [2022-07-14 03:01:59,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-07-14 03:01:59,293 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:01:59,294 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 8, 7, 7, 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, 1] [2022-07-14 03:01:59,326 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-14 03:01:59,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:01:59,507 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)] === [2022-07-14 03:01:59,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:01:59,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1271756931, now seen corresponding path program 1 times [2022-07-14 03:01:59,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:01:59,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1718643261] [2022-07-14 03:01:59,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:01:59,509 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:01:59,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:01:59,511 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) [2022-07-14 03:01:59,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-14 03:02:00,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:02:00,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 1323 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:02:00,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:02:01,056 INFO L134 CoverageAnalysis]: Checked inductivity of 777 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 763 trivial. 0 not checked. [2022-07-14 03:02:01,057 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:02:01,479 INFO L134 CoverageAnalysis]: Checked inductivity of 777 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 763 trivial. 0 not checked. [2022-07-14 03:02:01,479 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:02:01,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1718643261] [2022-07-14 03:02:01,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1718643261] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:02:01,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:02:01,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:02:01,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897032825] [2022-07-14 03:02:01,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:02:01,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:02:01,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:02:01,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:02:01,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:02:01,482 INFO L87 Difference]: Start difference. First operand 41495 states and 56575 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-14 03:02:02,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:02:02,592 INFO L93 Difference]: Finished difference Result 41501 states and 56580 transitions. [2022-07-14 03:02:02,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:02:02,593 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 240 [2022-07-14 03:02:02,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:02:02,750 INFO L225 Difference]: With dead ends: 41501 [2022-07-14 03:02:02,750 INFO L226 Difference]: Without dead ends: 41499 [2022-07-14 03:02:02,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 481 GetRequests, 473 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:02:02,783 INFO L413 NwaCegarLoop]: 2725 mSDtfsCounter, 2658 mSDsluCounter, 5431 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2662 SdHoareTripleChecker+Valid, 8156 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 03:02:02,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2662 Valid, 8156 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 03:02:02,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41499 states. [2022-07-14 03:02:04,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41499 to 41499. [2022-07-14 03:02:04,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41499 states, 28908 states have (on average 1.264736405147364) internal successors, (36561), 29400 states have internal predecessors, (36561), 10000 states have call successors, (10000), 2612 states have call predecessors, (10000), 2588 states have return successors, (10017), 9797 states have call predecessors, (10017), 9996 states have call successors, (10017) [2022-07-14 03:02:04,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41499 states to 41499 states and 56578 transitions. [2022-07-14 03:02:04,415 INFO L78 Accepts]: Start accepts. Automaton has 41499 states and 56578 transitions. Word has length 240 [2022-07-14 03:02:04,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:02:04,416 INFO L495 AbstractCegarLoop]: Abstraction has 41499 states and 56578 transitions. [2022-07-14 03:02:04,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-14 03:02:04,417 INFO L276 IsEmpty]: Start isEmpty. Operand 41499 states and 56578 transitions. [2022-07-14 03:02:04,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-07-14 03:02:04,420 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:02:04,420 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 9, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:02:04,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-14 03:02:04,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:02:04,628 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)] === [2022-07-14 03:02:04,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:02:04,628 INFO L85 PathProgramCache]: Analyzing trace with hash 678443581, now seen corresponding path program 1 times [2022-07-14 03:02:04,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:02:04,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [564044766] [2022-07-14 03:02:04,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:02:04,630 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:02:04,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:02:04,635 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) [2022-07-14 03:02:04,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-14 03:02:05,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:02:05,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 1330 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:02:05,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:02:06,311 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 791 trivial. 0 not checked. [2022-07-14 03:02:06,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:02:06,635 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 791 trivial. 0 not checked. [2022-07-14 03:02:06,636 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:02:06,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [564044766] [2022-07-14 03:02:06,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [564044766] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:02:06,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:02:06,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:02:06,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231268431] [2022-07-14 03:02:06,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:02:06,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:02:06,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:02:06,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:02:06,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:02:06,637 INFO L87 Difference]: Start difference. First operand 41499 states and 56578 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-14 03:02:07,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:02:07,967 INFO L93 Difference]: Finished difference Result 41505 states and 56583 transitions. [2022-07-14 03:02:07,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:02:07,968 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 245 [2022-07-14 03:02:07,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:02:08,144 INFO L225 Difference]: With dead ends: 41505 [2022-07-14 03:02:08,144 INFO L226 Difference]: Without dead ends: 41503 [2022-07-14 03:02:08,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 483 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:02:08,172 INFO L413 NwaCegarLoop]: 2725 mSDtfsCounter, 2658 mSDsluCounter, 5431 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2661 SdHoareTripleChecker+Valid, 8156 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 03:02:08,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2661 Valid, 8156 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 03:02:08,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41503 states. [2022-07-14 03:02:09,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41503 to 41503. [2022-07-14 03:02:09,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41503 states, 28911 states have (on average 1.2647089343156583) internal successors, (36564), 29403 states have internal predecessors, (36564), 10000 states have call successors, (10000), 2613 states have call predecessors, (10000), 2589 states have return successors, (10017), 9797 states have call predecessors, (10017), 9996 states have call successors, (10017) [2022-07-14 03:02:10,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41503 states to 41503 states and 56581 transitions. [2022-07-14 03:02:10,100 INFO L78 Accepts]: Start accepts. Automaton has 41503 states and 56581 transitions. Word has length 245 [2022-07-14 03:02:10,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:02:10,101 INFO L495 AbstractCegarLoop]: Abstraction has 41503 states and 56581 transitions. [2022-07-14 03:02:10,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-14 03:02:10,102 INFO L276 IsEmpty]: Start isEmpty. Operand 41503 states and 56581 transitions. [2022-07-14 03:02:10,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-07-14 03:02:10,105 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:02:10,106 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 10, 9, 9, 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, 1, 1, 1, 1, 1] [2022-07-14 03:02:10,137 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-14 03:02:10,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:02:10,320 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)] === [2022-07-14 03:02:10,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:02:10,320 INFO L85 PathProgramCache]: Analyzing trace with hash -659466435, now seen corresponding path program 1 times [2022-07-14 03:02:10,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:02:10,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [80210301] [2022-07-14 03:02:10,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:02:10,325 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:02:10,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:02:10,332 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) [2022-07-14 03:02:10,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-14 03:02:11,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:02:11,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 1337 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:02:11,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:02:12,338 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 823 trivial. 0 not checked. [2022-07-14 03:02:12,339 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:02:12,725 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 823 trivial. 0 not checked. [2022-07-14 03:02:12,726 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:02:12,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [80210301] [2022-07-14 03:02:12,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [80210301] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:02:12,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:02:12,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:02:12,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978162355] [2022-07-14 03:02:12,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:02:12,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:02:12,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:02:12,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:02:12,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:02:12,727 INFO L87 Difference]: Start difference. First operand 41503 states and 56581 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-14 03:02:14,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:02:14,054 INFO L93 Difference]: Finished difference Result 41509 states and 56586 transitions. [2022-07-14 03:02:14,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:02:14,054 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 250 [2022-07-14 03:02:14,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:02:14,199 INFO L225 Difference]: With dead ends: 41509 [2022-07-14 03:02:14,199 INFO L226 Difference]: Without dead ends: 41507 [2022-07-14 03:02:14,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 493 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:02:14,234 INFO L413 NwaCegarLoop]: 2725 mSDtfsCounter, 2658 mSDsluCounter, 5431 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2660 SdHoareTripleChecker+Valid, 8156 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 03:02:14,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2660 Valid, 8156 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 03:02:14,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41507 states. [2022-07-14 03:02:15,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41507 to 41507. [2022-07-14 03:02:15,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41507 states, 28914 states have (on average 1.264681469184478) internal successors, (36567), 29406 states have internal predecessors, (36567), 10000 states have call successors, (10000), 2614 states have call predecessors, (10000), 2590 states have return successors, (10017), 9797 states have call predecessors, (10017), 9996 states have call successors, (10017) [2022-07-14 03:02:16,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41507 states to 41507 states and 56584 transitions. [2022-07-14 03:02:16,129 INFO L78 Accepts]: Start accepts. Automaton has 41507 states and 56584 transitions. Word has length 250 [2022-07-14 03:02:16,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:02:16,130 INFO L495 AbstractCegarLoop]: Abstraction has 41507 states and 56584 transitions. [2022-07-14 03:02:16,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-14 03:02:16,130 INFO L276 IsEmpty]: Start isEmpty. Operand 41507 states and 56584 transitions. [2022-07-14 03:02:16,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2022-07-14 03:02:16,134 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:02:16,134 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 11, 11, 11, 11, 11, 11, 11, 10, 10, 6, 6, 6, 3, 3, 3, 3, 3, 3, 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] [2022-07-14 03:02:16,162 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-14 03:02:16,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:02:16,349 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)] === [2022-07-14 03:02:16,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:02:16,349 INFO L85 PathProgramCache]: Analyzing trace with hash -2071201209, now seen corresponding path program 1 times [2022-07-14 03:02:16,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:02:16,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1604163193] [2022-07-14 03:02:16,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:02:16,351 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:02:16,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:02:16,353 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) [2022-07-14 03:02:16,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-14 03:02:17,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:02:17,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 1428 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-14 03:02:17,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:02:18,058 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 237 proven. 3 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-07-14 03:02:18,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:02:18,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 51 proven. 18 refuted. 0 times theorem prover too weak. 951 trivial. 0 not checked. [2022-07-14 03:02:18,957 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:02:18,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1604163193] [2022-07-14 03:02:18,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1604163193] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 03:02:18,957 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 03:02:18,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 22 [2022-07-14 03:02:18,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931573377] [2022-07-14 03:02:18,958 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 03:02:18,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-14 03:02:18,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:02:18,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-14 03:02:18,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-07-14 03:02:18,963 INFO L87 Difference]: Start difference. First operand 41507 states and 56584 transitions. Second operand has 22 states, 21 states have (on average 5.476190476190476) internal successors, (115), 20 states have internal predecessors, (115), 6 states have call successors, (57), 3 states have call predecessors, (57), 8 states have return successors, (56), 7 states have call predecessors, (56), 6 states have call successors, (56) [2022-07-14 03:02:40,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:02:40,650 INFO L93 Difference]: Finished difference Result 109808 states and 149603 transitions. [2022-07-14 03:02:40,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-14 03:02:40,651 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 5.476190476190476) internal successors, (115), 20 states have internal predecessors, (115), 6 states have call successors, (57), 3 states have call predecessors, (57), 8 states have return successors, (56), 7 states have call predecessors, (56), 6 states have call successors, (56) Word has length 291 [2022-07-14 03:02:40,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:02:41,057 INFO L225 Difference]: With dead ends: 109808 [2022-07-14 03:02:41,058 INFO L226 Difference]: Without dead ends: 68234 [2022-07-14 03:02:41,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 595 GetRequests, 561 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=181, Invalid=1079, Unknown=0, NotChecked=0, Total=1260 [2022-07-14 03:02:41,195 INFO L413 NwaCegarLoop]: 5947 mSDtfsCounter, 8030 mSDsluCounter, 86117 mSDsCounter, 0 mSdLazyCounter, 7611 mSolverCounterSat, 1596 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8262 SdHoareTripleChecker+Valid, 92064 SdHoareTripleChecker+Invalid, 9207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1596 IncrementalHoareTripleChecker+Valid, 7611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2022-07-14 03:02:41,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8262 Valid, 92064 Invalid, 9207 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1596 Valid, 7611 Invalid, 0 Unknown, 0 Unchecked, 17.9s Time] [2022-07-14 03:02:41,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68234 states. [2022-07-14 03:02:43,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68234 to 54638. [2022-07-14 03:02:43,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54638 states, 38060 states have (on average 1.2641618497109826) internal successors, (48114), 38698 states have internal predecessors, (48114), 13142 states have call successors, (13142), 3462 states have call predecessors, (13142), 3433 states have return successors, (13166), 12889 states have call predecessors, (13166), 13138 states have call successors, (13166) [2022-07-14 03:02:43,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54638 states to 54638 states and 74422 transitions. [2022-07-14 03:02:43,861 INFO L78 Accepts]: Start accepts. Automaton has 54638 states and 74422 transitions. Word has length 291 [2022-07-14 03:02:43,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:02:43,861 INFO L495 AbstractCegarLoop]: Abstraction has 54638 states and 74422 transitions. [2022-07-14 03:02:43,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 5.476190476190476) internal successors, (115), 20 states have internal predecessors, (115), 6 states have call successors, (57), 3 states have call predecessors, (57), 8 states have return successors, (56), 7 states have call predecessors, (56), 6 states have call successors, (56) [2022-07-14 03:02:43,862 INFO L276 IsEmpty]: Start isEmpty. Operand 54638 states and 74422 transitions. [2022-07-14 03:02:43,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-07-14 03:02:43,865 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:02:43,865 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 11, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:02:43,922 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-07-14 03:02:44,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:02:44,079 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)] === [2022-07-14 03:02:44,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:02:44,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1514704387, now seen corresponding path program 1 times [2022-07-14 03:02:44,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:02:44,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1798189296] [2022-07-14 03:02:44,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:02:44,081 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:02:44,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:02:44,082 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) [2022-07-14 03:02:44,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-07-14 03:02:45,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:02:45,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 1344 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 03:02:45,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 03:02:46,119 INFO L134 CoverageAnalysis]: Checked inductivity of 879 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 859 trivial. 0 not checked. [2022-07-14 03:02:46,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 03:02:46,467 INFO L134 CoverageAnalysis]: Checked inductivity of 879 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 859 trivial. 0 not checked. [2022-07-14 03:02:46,467 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 03:02:46,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1798189296] [2022-07-14 03:02:46,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1798189296] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 03:02:46,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 03:02:46,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 03:02:46,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071221610] [2022-07-14 03:02:46,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:02:46,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:02:46,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 03:02:46,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:02:46,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 03:02:46,468 INFO L87 Difference]: Start difference. First operand 54638 states and 74422 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-14 03:02:48,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:02:48,498 INFO L93 Difference]: Finished difference Result 54644 states and 74427 transitions. [2022-07-14 03:02:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 03:02:48,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 255 [2022-07-14 03:02:48,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:02:48,764 INFO L225 Difference]: With dead ends: 54644 [2022-07-14 03:02:48,764 INFO L226 Difference]: Without dead ends: 54640 [2022-07-14 03:02:48,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 511 GetRequests, 503 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 03:02:48,796 INFO L413 NwaCegarLoop]: 2725 mSDtfsCounter, 2658 mSDsluCounter, 5431 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2659 SdHoareTripleChecker+Valid, 8156 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 03:02:48,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2659 Valid, 8156 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 03:02:48,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54640 states. [2022-07-14 03:02:51,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54640 to 54640. [2022-07-14 03:02:51,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54640 states, 38062 states have (on average 1.2641216961799169) internal successors, (48115), 38699 states have internal predecessors, (48115), 13142 states have call successors, (13142), 3463 states have call predecessors, (13142), 3433 states have return successors, (13166), 12889 states have call predecessors, (13166), 13138 states have call successors, (13166) [2022-07-14 03:02:51,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54640 states to 54640 states and 74423 transitions. [2022-07-14 03:02:51,323 INFO L78 Accepts]: Start accepts. Automaton has 54640 states and 74423 transitions. Word has length 255 [2022-07-14 03:02:51,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:02:51,324 INFO L495 AbstractCegarLoop]: Abstraction has 54640 states and 74423 transitions. [2022-07-14 03:02:51,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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) [2022-07-14 03:02:51,324 INFO L276 IsEmpty]: Start isEmpty. Operand 54640 states and 74423 transitions. [2022-07-14 03:02:51,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-07-14 03:02:51,327 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:02:51,327 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 11, 11, 11, 11, 11, 11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 03:02:51,350 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2022-07-14 03:02:51,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 03:02:51,550 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)] === [2022-07-14 03:02:51,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:02:51,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1305401603, now seen corresponding path program 1 times [2022-07-14 03:02:51,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 03:02:51,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1046119243] [2022-07-14 03:02:51,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:02:51,555 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 03:02:51,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 03:02:51,556 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) [2022-07-14 03:02:51,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process