./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 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-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-?-6c24879 [2022-07-12 15:19:00,833 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 15:19:00,834 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 15:19:00,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 15:19:00,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 15:19:00,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 15:19:00,884 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 15:19:00,887 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 15:19:00,888 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 15:19:00,892 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 15:19:00,893 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 15:19:00,894 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 15:19:00,894 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 15:19:00,896 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 15:19:00,898 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 15:19:00,899 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 15:19:00,900 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 15:19:00,902 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 15:19:00,905 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 15:19:00,907 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 15:19:00,910 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 15:19:00,911 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 15:19:00,912 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 15:19:00,913 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 15:19:00,914 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 15:19:00,920 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 15:19:00,921 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 15:19:00,921 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 15:19:00,922 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 15:19:00,923 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 15:19:00,923 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 15:19:00,924 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 15:19:00,925 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 15:19:00,926 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 15:19:00,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 15:19:00,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 15:19:00,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 15:19:00,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 15:19:00,928 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 15:19:00,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 15:19:00,930 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 15:19:00,932 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 15:19:00,934 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 15:19:00,961 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 15:19:00,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 15:19:00,962 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 15:19:00,962 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 15:19:00,962 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 15:19:00,962 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 15:19:00,963 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 15:19:00,963 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 15:19:00,963 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 15:19:00,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 15:19:00,964 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 15:19:00,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 15:19:00,964 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 15:19:00,965 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 15:19:00,965 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 15:19:00,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 15:19:00,965 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 15:19:00,965 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 15:19:00,966 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 15:19:00,966 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 15:19:00,966 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 15:19:00,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 15:19:00,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 15:19:00,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 15:19:00,967 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 15:19:00,967 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 15:19:00,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 15:19:00,967 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 15:19:00,968 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 15:19:00,968 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 15:19:00,968 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82e959473290e80a4f353bcd3c2747bafa4ce239975e14e29f8e5bf5eff4b01b [2022-07-12 15:19:01,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 15:19:01,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 15:19:01,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 15:19:01,214 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 15:19:01,216 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 15:19:01,218 INFO L432 ainManager$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 [2022-07-12 15:19:01,290 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bae8527f/40d5b35a95c0496998dad03e52d976ff/FLAG6130e8b09 [2022-07-12 15:19:02,057 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 15:19:02,058 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 [2022-07-12 15:19:02,108 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bae8527f/40d5b35a95c0496998dad03e52d976ff/FLAG6130e8b09 [2022-07-12 15:19:02,304 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bae8527f/40d5b35a95c0496998dad03e52d976ff [2022-07-12 15:19:02,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 15:19:02,308 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 15:19:02,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 15:19:02,312 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 15:19:02,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 15:19:02,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:19:02" (1/1) ... [2022-07-12 15:19:02,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@136455ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:19:02, skipping insertion in model container [2022-07-12 15:19:02,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:19:02" (1/1) ... [2022-07-12 15:19:02,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 15:19:02,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 15:19:05,156 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] [2022-07-12 15:19:05,160 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] [2022-07-12 15:19:05,162 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] [2022-07-12 15:19:05,163 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] [2022-07-12 15:19:05,190 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 15:19:05,235 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 15:19:05,482 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) [2022-07-12 15:19:05,491 INFO L158 Benchmark]: Toolchain (without parser) took 3181.42ms. Allocated memory was 86.0MB in the beginning and 153.1MB in the end (delta: 67.1MB). Free memory was 38.7MB in the beginning and 65.9MB in the end (delta: -27.2MB). Peak memory consumption was 58.9MB. Max. memory is 16.1GB. [2022-07-12 15:19:05,492 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 86.0MB. Free memory was 42.1MB in the beginning and 42.0MB in the end (delta: 47.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 15:19:05,493 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3177.60ms. Allocated memory was 86.0MB in the beginning and 153.1MB in the end (delta: 67.1MB). Free memory was 38.4MB in the beginning and 65.9MB in the end (delta: -27.5MB). Peak memory consumption was 58.9MB. Max. memory is 16.1GB. [2022-07-12 15:19:05,495 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 86.0MB. Free memory was 42.1MB in the beginning and 42.0MB in the end (delta: 47.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3177.60ms. Allocated memory was 86.0MB in the beginning and 153.1MB in the end (delta: 67.1MB). Free memory was 38.4MB in the beginning and 65.9MB in the end (delta: -27.5MB). Peak memory consumption was 58.9MB. 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-?-6c24879 [2022-07-12 15:19:07,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 15:19:07,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 15:19:07,338 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 15:19:07,339 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 15:19:07,340 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 15:19:07,344 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 15:19:07,347 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 15:19:07,348 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 15:19:07,353 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 15:19:07,353 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 15:19:07,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 15:19:07,356 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 15:19:07,358 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 15:19:07,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 15:19:07,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 15:19:07,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 15:19:07,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 15:19:07,367 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 15:19:07,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 15:19:07,374 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 15:19:07,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 15:19:07,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 15:19:07,377 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 15:19:07,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 15:19:07,384 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 15:19:07,384 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 15:19:07,384 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 15:19:07,385 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 15:19:07,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 15:19:07,386 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 15:19:07,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 15:19:07,388 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 15:19:07,389 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 15:19:07,390 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 15:19:07,391 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 15:19:07,391 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 15:19:07,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 15:19:07,392 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 15:19:07,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 15:19:07,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 15:19:07,394 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 15:19:07,397 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 15:19:07,429 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 15:19:07,430 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 15:19:07,430 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 15:19:07,431 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 15:19:07,431 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 15:19:07,431 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 15:19:07,432 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 15:19:07,433 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 15:19:07,433 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 15:19:07,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 15:19:07,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 15:19:07,434 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 15:19:07,434 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 15:19:07,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 15:19:07,435 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 15:19:07,443 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 15:19:07,443 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 15:19:07,443 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 15:19:07,444 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 15:19:07,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 15:19:07,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 15:19:07,444 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 15:19:07,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 15:19:07,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 15:19:07,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 15:19:07,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 15:19:07,446 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 15:19:07,446 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 15:19:07,446 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 15:19:07,446 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 15:19:07,446 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 15:19:07,447 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 15:19:07,447 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 15:19:07,447 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82e959473290e80a4f353bcd3c2747bafa4ce239975e14e29f8e5bf5eff4b01b [2022-07-12 15:19:07,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 15:19:07,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 15:19:07,779 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 15:19:07,780 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 15:19:07,781 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 15:19:07,782 INFO L432 ainManager$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 [2022-07-12 15:19:07,831 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f406084d/61f49ad31c274b39bd79378dc221e64b/FLAG9a02887cc [2022-07-12 15:19:08,629 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 15:19:08,631 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 [2022-07-12 15:19:08,691 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f406084d/61f49ad31c274b39bd79378dc221e64b/FLAG9a02887cc [2022-07-12 15:19:08,854 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f406084d/61f49ad31c274b39bd79378dc221e64b [2022-07-12 15:19:08,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 15:19:08,858 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 15:19:08,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 15:19:08,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 15:19:08,862 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 15:19:08,863 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:19:08" (1/1) ... [2022-07-12 15:19:08,864 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b209293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:19:08, skipping insertion in model container [2022-07-12 15:19:08,864 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:19:08" (1/1) ... [2022-07-12 15:19:08,872 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 15:19:09,014 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 15:19:11,737 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] [2022-07-12 15:19:11,740 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] [2022-07-12 15:19:11,741 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] [2022-07-12 15:19:11,741 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] [2022-07-12 15:19:11,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 15:19:11,788 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 15:19:11,868 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 15:19:12,132 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] [2022-07-12 15:19:12,133 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] [2022-07-12 15:19:12,134 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] [2022-07-12 15:19:12,134 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] [2022-07-12 15:19:12,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 15:19:12,169 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 15:19:12,448 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] [2022-07-12 15:19:12,449 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] [2022-07-12 15:19:12,449 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] [2022-07-12 15:19:12,449 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] [2022-07-12 15:19:12,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 15:19:12,778 INFO L208 MainTranslator]: Completed translation [2022-07-12 15:19:12,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:19:12 WrapperNode [2022-07-12 15:19:12,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 15:19:12,780 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 15:19:12,781 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 15:19:12,781 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 15:19:12,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:19:12" (1/1) ... [2022-07-12 15:19:12,891 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:19:12" (1/1) ... [2022-07-12 15:19:13,080 INFO L137 Inliner]: procedures = 463, calls = 1948, calls flagged for inlining = 238, calls inlined = 222, statements flattened = 5029 [2022-07-12 15:19:13,082 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 15:19:13,083 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 15:19:13,083 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 15:19:13,083 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 15:19:13,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:19:12" (1/1) ... [2022-07-12 15:19:13,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:19:12" (1/1) ... [2022-07-12 15:19:13,132 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:19:12" (1/1) ... [2022-07-12 15:19:13,133 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:19:12" (1/1) ... [2022-07-12 15:19:13,255 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:19:12" (1/1) ... [2022-07-12 15:19:13,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:19:12" (1/1) ... [2022-07-12 15:19:13,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:19:12" (1/1) ... [2022-07-12 15:19:13,411 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 15:19:13,412 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 15:19:13,413 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 15:19:13,413 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 15:19:13,414 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:19:12" (1/1) ... [2022-07-12 15:19:13,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 15:19:13,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 15:19:13,446 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 15:19:13,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 15:19:13,490 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rxfilter [2022-07-12 15:19:13,490 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rxfilter [2022-07-12 15:19:13,490 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-07-12 15:19:13,490 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-07-12 15:19:13,490 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-12 15:19:13,491 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-12 15:19:13,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 15:19:13,491 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 15:19:13,491 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-12 15:19:13,492 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-12 15:19:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-12 15:19:13,492 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-12 15:19:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 15:19:13,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 15:19:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-12 15:19:13,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-12 15:19:13,493 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-12 15:19:13,493 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-12 15:19:13,493 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-12 15:19:13,493 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-12 15:19:13,494 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-07-12 15:19:13,494 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-07-12 15:19:13,494 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_default_phy [2022-07-12 15:19:13,494 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_default_phy [2022-07-12 15:19:13,494 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-07-12 15:19:13,494 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-07-12 15:19:13,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_75 [2022-07-12 15:19:13,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_75 [2022-07-12 15:19:13,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_66 [2022-07-12 15:19:13,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_66 [2022-07-12 15:19:13,495 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-12 15:19:13,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-12 15:19:13,496 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-12 15:19:13,496 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-12 15:19:13,496 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_check_mode [2022-07-12 15:19:13,496 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_check_mode [2022-07-12 15:19:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-12 15:19:13,497 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-12 15:19:13,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-12 15:19:13,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-12 15:19:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-12 15:19:13,498 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-12 15:19:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-12 15:19:13,499 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-12 15:19:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-12 15:19:13,499 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-12 15:19:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-12 15:19:13,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-12 15:19:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_remove [2022-07-12 15:19:13,500 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_remove [2022-07-12 15:19:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure sis630_set_eq [2022-07-12 15:19:13,500 INFO L138 BoogieDeclarations]: Found implementation of procedure sis630_set_eq [2022-07-12 15:19:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_device [2022-07-12 15:19:13,501 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_device [2022-07-12 15:19:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-12 15:19:13,501 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-12 15:19:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 15:19:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-12 15:19:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 15:19:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 15:19:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-12 15:19:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sis900_cleanup_module_14_2 [2022-07-12 15:19:13,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sis900_cleanup_module_14_2 [2022-07-12 15:19:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_tx_ring [2022-07-12 15:19:13,503 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_tx_ring [2022-07-12 15:19:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-12 15:19:13,503 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-12 15:19:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_sis900_private [2022-07-12 15:19:13,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_sis900_private [2022-07-12 15:19:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 15:19:13,504 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 15:19:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-12 15:19:13,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-12 15:19:13,504 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_mode [2022-07-12 15:19:13,505 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_mode [2022-07-12 15:19:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-07-12 15:19:13,505 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-07-12 15:19:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_sis900_private [2022-07-12 15:19:13,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_sis900_private [2022-07-12 15:19:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 15:19:13,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 15:19:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-12 15:19:13,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-12 15:19:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-12 15:19:13,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-12 15:19:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-12 15:19:13,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-12 15:19:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-12 15:19:13,507 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-12 15:19:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_interrupt [2022-07-12 15:19:13,508 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_interrupt [2022-07-12 15:19:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_reset_phy [2022-07-12 15:19:13,508 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_reset_phy [2022-07-12 15:19:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-12 15:19:13,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-12 15:19:13,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 15:19:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-12 15:19:13,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-12 15:19:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-12 15:19:13,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-12 15:19:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 15:19:13,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-12 15:19:13,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-12 15:19:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 15:19:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-07-12 15:19:13,513 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-07-12 15:19:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_open [2022-07-12 15:19:13,514 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_open [2022-07-12 15:19:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 15:19:13,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 15:19:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_nway_reset [2022-07-12 15:19:13,516 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_nway_reset [2022-07-12 15:19:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-12 15:19:13,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-12 15:19:13,521 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 15:19:13,522 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 15:19:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-12 15:19:13,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-12 15:19:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-07-12 15:19:13,522 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-07-12 15:19:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 15:19:13,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 15:19:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 15:19:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_close [2022-07-12 15:19:13,523 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_close [2022-07-12 15:19:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 15:19:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 15:19:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-12 15:19:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 15:19:13,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 15:19:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-12 15:19:13,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-12 15:19:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-12 15:19:13,524 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-12 15:19:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-12 15:19:13,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-12 15:19:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_reset [2022-07-12 15:19:13,525 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_reset [2022-07-12 15:19:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-12 15:19:13,525 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-12 15:19:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-12 15:19:13,525 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-12 15:19:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-12 15:19:13,525 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-12 15:19:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-12 15:19:13,526 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-12 15:19:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2022-07-12 15:19:13,526 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2022-07-12 15:19:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-12 15:19:13,526 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-12 15:19:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 15:19:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-12 15:19:13,526 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-12 15:19:13,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_74 [2022-07-12 15:19:13,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_74 [2022-07-12 15:19:13,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 15:19:13,528 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-12 15:19:13,528 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-12 15:19:13,528 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rx_ring [2022-07-12 15:19:13,528 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rx_ring [2022-07-12 15:19:13,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 15:19:13,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 15:19:13,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 15:19:13,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 15:19:13,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 15:19:13,529 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-07-12 15:19:13,529 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-07-12 15:19:13,529 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-12 15:19:13,529 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-12 15:19:13,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-12 15:19:13,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-12 15:19:13,530 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hw_addr_random [2022-07-12 15:19:13,530 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hw_addr_random [2022-07-12 15:19:13,530 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-12 15:19:13,530 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-12 15:19:13,530 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-07-12 15:19:13,530 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-07-12 15:19:13,530 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_poll [2022-07-12 15:19:13,530 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_poll [2022-07-12 15:19:13,531 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-12 15:19:13,531 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-12 15:19:13,531 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-12 15:19:13,531 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-12 15:19:13,531 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-07-12 15:19:13,531 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-07-12 15:19:13,531 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-12 15:19:13,532 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-12 15:19:13,532 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 15:19:13,532 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 15:19:13,532 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_resume [2022-07-12 15:19:13,532 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_resume [2022-07-12 15:19:13,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 15:19:13,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 15:19:13,532 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2022-07-12 15:19:13,533 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2022-07-12 15:19:13,533 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_idle [2022-07-12 15:19:13,533 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_idle [2022-07-12 15:19:13,533 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_tx_timeout [2022-07-12 15:19:13,533 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_tx_timeout [2022-07-12 15:19:13,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-12 15:19:13,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-12 15:19:13,533 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-07-12 15:19:13,534 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-07-12 15:19:13,534 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-12 15:19:13,534 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-12 15:19:13,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-12 15:19:13,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-12 15:19:14,398 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 15:19:14,402 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 15:19:14,808 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 15:19:43,546 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-12 15:19:43,634 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 15:19:43,658 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 15:19:43,660 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 15:19:43,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 03:19:43 BoogieIcfgContainer [2022-07-12 15:19:43,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 15:19:43,666 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 15:19:43,666 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 15:19:43,669 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 15:19:43,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 03:19:08" (1/3) ... [2022-07-12 15:19:43,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e93163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 03:19:43, skipping insertion in model container [2022-07-12 15:19:43,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:19:12" (2/3) ... [2022-07-12 15:19:43,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e93163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 03:19:43, skipping insertion in model container [2022-07-12 15:19:43,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 03:19:43" (3/3) ... [2022-07-12 15:19:43,672 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i [2022-07-12 15:19:43,686 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 15:19:43,687 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-12 15:19:43,790 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 15:19:43,797 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@689f4303, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@77e56bdf [2022-07-12 15:19:43,798 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-12 15:19:43,812 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) [2022-07-12 15:19:43,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-07-12 15:19:43,840 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:19:43,841 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] [2022-07-12 15:19:43,842 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:19:43,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:19:43,848 INFO L85 PathProgramCache]: Analyzing trace with hash -511834341, now seen corresponding path program 1 times [2022-07-12 15:19:43,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:19:43,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [381604191] [2022-07-12 15:19:43,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:19:43,868 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:19:43,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:19:43,876 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:19:43,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 15:19:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:45,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 1149 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:19:45,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:19:45,197 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2022-07-12 15:19:45,197 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:19:45,198 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:19:45,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [381604191] [2022-07-12 15:19:45,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [381604191] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:19:45,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:19:45,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:19:45,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863194191] [2022-07-12 15:19:45,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:19:45,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:19:45,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:19:45,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:19:45,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:19:45,236 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) [2022-07-12 15:19:45,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:19:45,756 INFO L93 Difference]: Finished difference Result 5732 states and 8177 transitions. [2022-07-12 15:19:45,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:19:45,759 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 [2022-07-12 15:19:45,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:19:45,809 INFO L225 Difference]: With dead ends: 5732 [2022-07-12 15:19:45,809 INFO L226 Difference]: Without dead ends: 3789 [2022-07-12 15:19:45,833 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 [2022-07-12 15:19:45,839 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 [2022-07-12 15:19:45,840 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] [2022-07-12 15:19:45,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3789 states. [2022-07-12 15:19:46,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3789 to 3785. [2022-07-12 15:19:46,184 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) [2022-07-12 15:19:46,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3785 states to 3785 states and 5300 transitions. [2022-07-12 15:19:46,219 INFO L78 Accepts]: Start accepts. Automaton has 3785 states and 5300 transitions. Word has length 149 [2022-07-12 15:19:46,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:19:46,222 INFO L495 AbstractCegarLoop]: Abstraction has 3785 states and 5300 transitions. [2022-07-12 15:19:46,222 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) [2022-07-12 15:19:46,223 INFO L276 IsEmpty]: Start isEmpty. Operand 3785 states and 5300 transitions. [2022-07-12 15:19:46,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-07-12 15:19:46,233 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:19:46,233 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] [2022-07-12 15:19:46,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 15:19:46,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:19:46,448 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:19:46,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:19:46,448 INFO L85 PathProgramCache]: Analyzing trace with hash 474246430, now seen corresponding path program 1 times [2022-07-12 15:19:46,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:19:46,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1515635908] [2022-07-12 15:19:46,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:19:46,450 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:19:46,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:19:46,454 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:19:46,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 15:19:47,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:47,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 1198 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:19:47,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:19:47,633 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2022-07-12 15:19:47,633 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:19:47,633 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:19:47,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1515635908] [2022-07-12 15:19:47,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1515635908] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:19:47,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:19:47,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:19:47,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238202181] [2022-07-12 15:19:47,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:19:47,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:19:47,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:19:47,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:19:47,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:19:47,636 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) [2022-07-12 15:19:48,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:19:48,152 INFO L93 Difference]: Finished difference Result 11169 states and 15652 transitions. [2022-07-12 15:19:48,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:19:48,153 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 [2022-07-12 15:19:48,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:19:48,355 INFO L225 Difference]: With dead ends: 11169 [2022-07-12 15:19:48,355 INFO L226 Difference]: Without dead ends: 7411 [2022-07-12 15:19:48,379 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 [2022-07-12 15:19:48,381 INFO L413 NwaCegarLoop]: 3243 mSDtfsCounter, 2650 mSDsluCounter, 2644 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-07-12 15:19:48,381 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] [2022-07-12 15:19:48,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7411 states. [2022-07-12 15:19:48,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7411 to 7382. [2022-07-12 15:19:48,698 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) [2022-07-12 15:19:48,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7382 states to 7382 states and 10345 transitions. [2022-07-12 15:19:48,754 INFO L78 Accepts]: Start accepts. Automaton has 7382 states and 10345 transitions. Word has length 153 [2022-07-12 15:19:48,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:19:48,759 INFO L495 AbstractCegarLoop]: Abstraction has 7382 states and 10345 transitions. [2022-07-12 15:19:48,759 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) [2022-07-12 15:19:48,759 INFO L276 IsEmpty]: Start isEmpty. Operand 7382 states and 10345 transitions. [2022-07-12 15:19:48,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-12 15:19:48,763 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:19:48,763 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] [2022-07-12 15:19:48,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 15:19:48,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:19:48,980 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:19:48,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:19:48,980 INFO L85 PathProgramCache]: Analyzing trace with hash 501804944, now seen corresponding path program 1 times [2022-07-12 15:19:48,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:19:48,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [463571235] [2022-07-12 15:19:48,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:19:48,982 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:19:48,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:19:48,984 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:19:48,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 15:19:50,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:50,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 1187 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:19:50,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:19:50,213 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2022-07-12 15:19:50,213 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:19:50,213 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:19:50,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [463571235] [2022-07-12 15:19:50,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [463571235] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:19:50,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:19:50,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:19:50,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523241208] [2022-07-12 15:19:50,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:19:50,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:19:50,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:19:50,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:19:50,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:19:50,215 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) [2022-07-12 15:19:51,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:19:51,072 INFO L93 Difference]: Finished difference Result 20898 states and 29297 transitions. [2022-07-12 15:19:51,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:19:51,073 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 [2022-07-12 15:19:51,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:19:51,181 INFO L225 Difference]: With dead ends: 20898 [2022-07-12 15:19:51,181 INFO L226 Difference]: Without dead ends: 13543 [2022-07-12 15:19:51,220 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 [2022-07-12 15:19:51,225 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, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 15:19:51,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2268 Valid, 5804 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 15:19:51,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13543 states. [2022-07-12 15:19:51,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13543 to 13512. [2022-07-12 15:19:51,960 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) [2022-07-12 15:19:52,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13512 states to 13512 states and 18931 transitions. [2022-07-12 15:19:52,064 INFO L78 Accepts]: Start accepts. Automaton has 13512 states and 18931 transitions. Word has length 156 [2022-07-12 15:19:52,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:19:52,066 INFO L495 AbstractCegarLoop]: Abstraction has 13512 states and 18931 transitions. [2022-07-12 15:19:52,067 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) [2022-07-12 15:19:52,067 INFO L276 IsEmpty]: Start isEmpty. Operand 13512 states and 18931 transitions. [2022-07-12 15:19:52,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-07-12 15:19:52,071 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:19:52,071 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] [2022-07-12 15:19:52,115 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-12 15:19:52,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:19:52,288 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:19:52,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:19:52,288 INFO L85 PathProgramCache]: Analyzing trace with hash -585811610, now seen corresponding path program 1 times [2022-07-12 15:19:52,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:19:52,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [201819113] [2022-07-12 15:19:52,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:19:52,290 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:19:52,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:19:52,293 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:19:52,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 15:19:53,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:53,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 1270 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:19:53,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:19:53,574 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2022-07-12 15:19:53,574 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:19:53,575 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:19:53,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [201819113] [2022-07-12 15:19:53,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [201819113] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:19:53,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:19:53,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:19:53,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484414338] [2022-07-12 15:19:53,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:19:53,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:19:53,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:19:53,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:19:53,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:19:53,576 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) [2022-07-12 15:19:54,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:19:54,327 INFO L93 Difference]: Finished difference Result 24124 states and 33746 transitions. [2022-07-12 15:19:54,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:19:54,328 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 [2022-07-12 15:19:54,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:19:54,396 INFO L225 Difference]: With dead ends: 24124 [2022-07-12 15:19:54,397 INFO L226 Difference]: Without dead ends: 10639 [2022-07-12 15:19:54,454 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 [2022-07-12 15:19:54,457 INFO L413 NwaCegarLoop]: 3786 mSDtfsCounter, 1536 mSDsluCounter, 2660 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2022-07-12 15:19:54,458 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] [2022-07-12 15:19:54,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10639 states. [2022-07-12 15:19:54,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10639 to 10608. [2022-07-12 15:19:54,870 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) [2022-07-12 15:19:54,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10608 states to 10608 states and 14734 transitions. [2022-07-12 15:19:54,935 INFO L78 Accepts]: Start accepts. Automaton has 10608 states and 14734 transitions. Word has length 165 [2022-07-12 15:19:54,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:19:54,935 INFO L495 AbstractCegarLoop]: Abstraction has 10608 states and 14734 transitions. [2022-07-12 15:19:54,936 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) [2022-07-12 15:19:54,936 INFO L276 IsEmpty]: Start isEmpty. Operand 10608 states and 14734 transitions. [2022-07-12 15:19:54,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-07-12 15:19:54,940 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:19:54,941 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] [2022-07-12 15:19:54,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-12 15:19:55,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:19:55,159 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)] === [2022-07-12 15:19:55,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:19:55,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1098294467, now seen corresponding path program 1 times [2022-07-12 15:19:55,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:19:55,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [830424000] [2022-07-12 15:19:55,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:19:55,162 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:19:55,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:19:55,164 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:19:55,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-12 15:19:56,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:56,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 1274 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:19:56,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:19:56,886 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 679 trivial. 0 not checked. [2022-07-12 15:19:56,886 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:19:56,886 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:19:56,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [830424000] [2022-07-12 15:19:56,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [830424000] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:19:56,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:19:56,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:19:56,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215417051] [2022-07-12 15:19:56,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:19:56,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:19:56,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:19:56,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:19:56,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:19:56,888 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) [2022-07-12 15:19:57,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:19:57,275 INFO L93 Difference]: Finished difference Result 10614 states and 14739 transitions. [2022-07-12 15:19:57,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:19:57,276 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 [2022-07-12 15:19:57,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:19:57,334 INFO L225 Difference]: With dead ends: 10614 [2022-07-12 15:19:57,334 INFO L226 Difference]: Without dead ends: 10612 [2022-07-12 15:19:57,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:19:57,345 INFO L413 NwaCegarLoop]: 2722 mSDtfsCounter, 2638 mSDsluCounter, 5432 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2639 SdHoareTripleChecker+Valid, 8154 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:19:57,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2639 Valid, 8154 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:19:57,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10612 states. [2022-07-12 15:19:57,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10612 to 10612. [2022-07-12 15:19:57,801 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) [2022-07-12 15:19:57,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10612 states to 10612 states and 14737 transitions. [2022-07-12 15:19:57,850 INFO L78 Accepts]: Start accepts. Automaton has 10612 states and 14737 transitions. Word has length 205 [2022-07-12 15:19:57,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:19:57,851 INFO L495 AbstractCegarLoop]: Abstraction has 10612 states and 14737 transitions. [2022-07-12 15:19:57,851 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) [2022-07-12 15:19:57,851 INFO L276 IsEmpty]: Start isEmpty. Operand 10612 states and 14737 transitions. [2022-07-12 15:19:57,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-07-12 15:19:57,855 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:19:57,856 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] [2022-07-12 15:19:57,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-12 15:19:58,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:19:58,076 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)] === [2022-07-12 15:19:58,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:19:58,076 INFO L85 PathProgramCache]: Analyzing trace with hash 2033981501, now seen corresponding path program 1 times [2022-07-12 15:19:58,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:19:58,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [263129359] [2022-07-12 15:19:58,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:19:58,077 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:19:58,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:19:58,079 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:19:58,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-12 15:19:59,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:19:59,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 1281 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:19:59,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:19:59,883 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 679 trivial. 0 not checked. [2022-07-12 15:19:59,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:20:00,352 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 679 trivial. 0 not checked. [2022-07-12 15:20:00,352 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:20:00,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [263129359] [2022-07-12 15:20:00,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [263129359] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:20:00,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:20:00,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:20:00,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187836514] [2022-07-12 15:20:00,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:20:00,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:20:00,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:20:00,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:20:00,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:20:00,354 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) [2022-07-12 15:20:00,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:20:00,764 INFO L93 Difference]: Finished difference Result 10618 states and 14742 transitions. [2022-07-12 15:20:00,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:20:00,764 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 [2022-07-12 15:20:00,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:20:00,815 INFO L225 Difference]: With dead ends: 10618 [2022-07-12 15:20:00,815 INFO L226 Difference]: Without dead ends: 10616 [2022-07-12 15:20:00,824 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 [2022-07-12 15:20:00,825 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 [2022-07-12 15:20:00,826 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] [2022-07-12 15:20:00,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10616 states. [2022-07-12 15:20:01,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10616 to 10616. [2022-07-12 15:20:01,262 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) [2022-07-12 15:20:01,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10616 states to 10616 states and 14740 transitions. [2022-07-12 15:20:01,313 INFO L78 Accepts]: Start accepts. Automaton has 10616 states and 14740 transitions. Word has length 210 [2022-07-12 15:20:01,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:20:01,316 INFO L495 AbstractCegarLoop]: Abstraction has 10616 states and 14740 transitions. [2022-07-12 15:20:01,316 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) [2022-07-12 15:20:01,316 INFO L276 IsEmpty]: Start isEmpty. Operand 10616 states and 14740 transitions. [2022-07-12 15:20:01,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-07-12 15:20:01,320 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:20:01,321 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] [2022-07-12 15:20:01,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-12 15:20:01,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:20:01,544 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:20:01,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:20:01,544 INFO L85 PathProgramCache]: Analyzing trace with hash 567579389, now seen corresponding path program 1 times [2022-07-12 15:20:01,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:20:01,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1253074150] [2022-07-12 15:20:01,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:20:01,545 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:20:01,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:20:01,546 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:20:01,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-12 15:20:02,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:02,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 1288 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:20:02,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:20:03,283 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2022-07-12 15:20:03,284 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:20:03,647 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2022-07-12 15:20:03,647 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:20:03,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1253074150] [2022-07-12 15:20:03,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1253074150] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:20:03,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:20:03,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:20:03,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096333965] [2022-07-12 15:20:03,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:20:03,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:20:03,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:20:03,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:20:03,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:20:03,650 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) [2022-07-12 15:20:04,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:20:04,324 INFO L93 Difference]: Finished difference Result 10622 states and 14745 transitions. [2022-07-12 15:20:04,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:20:04,324 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 [2022-07-12 15:20:04,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:20:04,433 INFO L225 Difference]: With dead ends: 10622 [2022-07-12 15:20:04,434 INFO L226 Difference]: Without dead ends: 10620 [2022-07-12 15:20:04,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 423 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:20:04,446 INFO L413 NwaCegarLoop]: 2725 mSDtfsCounter, 2658 mSDsluCounter, 5431 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-07-12 15:20:04,446 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] [2022-07-12 15:20:04,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10620 states. [2022-07-12 15:20:04,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10620 to 10620. [2022-07-12 15:20:05,003 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) [2022-07-12 15:20:05,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10620 states to 10620 states and 14743 transitions. [2022-07-12 15:20:05,064 INFO L78 Accepts]: Start accepts. Automaton has 10620 states and 14743 transitions. Word has length 215 [2022-07-12 15:20:05,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:20:05,065 INFO L495 AbstractCegarLoop]: Abstraction has 10620 states and 14743 transitions. [2022-07-12 15:20:05,065 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) [2022-07-12 15:20:05,065 INFO L276 IsEmpty]: Start isEmpty. Operand 10620 states and 14743 transitions. [2022-07-12 15:20:05,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-07-12 15:20:05,070 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:20:05,070 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] [2022-07-12 15:20:05,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-12 15:20:05,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:20:05,292 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:20:05,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:20:05,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1378185684, now seen corresponding path program 1 times [2022-07-12 15:20:05,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:20:05,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [110377845] [2022-07-12 15:20:05,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:20:05,294 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:20:05,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:20:05,296 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:20:05,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-12 15:20:06,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:06,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 1342 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:20:06,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:20:06,635 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2022-07-12 15:20:06,635 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:20:06,635 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:20:06,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [110377845] [2022-07-12 15:20:06,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [110377845] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:20:06,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:20:06,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:20:06,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83735823] [2022-07-12 15:20:06,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:20:06,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:20:06,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:20:06,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:20:06,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:20:06,637 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) [2022-07-12 15:20:07,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:20:07,332 INFO L93 Difference]: Finished difference Result 30593 states and 42516 transitions. [2022-07-12 15:20:07,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:20:07,333 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 [2022-07-12 15:20:07,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:20:07,434 INFO L225 Difference]: With dead ends: 30593 [2022-07-12 15:20:07,435 INFO L226 Difference]: Without dead ends: 20367 [2022-07-12 15:20:07,476 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 [2022-07-12 15:20:07,477 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 [2022-07-12 15:20:07,477 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] [2022-07-12 15:20:07,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20367 states. [2022-07-12 15:20:08,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20367 to 20333. [2022-07-12 15:20:08,380 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) [2022-07-12 15:20:08,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20333 states to 20333 states and 28229 transitions. [2022-07-12 15:20:08,498 INFO L78 Accepts]: Start accepts. Automaton has 20333 states and 28229 transitions. Word has length 231 [2022-07-12 15:20:08,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:20:08,498 INFO L495 AbstractCegarLoop]: Abstraction has 20333 states and 28229 transitions. [2022-07-12 15:20:08,499 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) [2022-07-12 15:20:08,499 INFO L276 IsEmpty]: Start isEmpty. Operand 20333 states and 28229 transitions. [2022-07-12 15:20:08,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-07-12 15:20:08,505 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:20:08,505 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] [2022-07-12 15:20:08,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-12 15:20:08,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:20:08,728 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:20:08,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:20:08,728 INFO L85 PathProgramCache]: Analyzing trace with hash 650400426, now seen corresponding path program 1 times [2022-07-12 15:20:08,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:20:08,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1358436586] [2022-07-12 15:20:08,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:20:08,730 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:20:08,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:20:08,732 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:20:08,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-12 15:20:09,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:09,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 1342 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:20:09,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:20:09,927 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2022-07-12 15:20:09,927 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:20:09,927 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:20:09,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1358436586] [2022-07-12 15:20:09,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1358436586] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:20:09,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:20:09,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:20:09,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201022549] [2022-07-12 15:20:09,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:20:09,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:20:09,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:20:09,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:20:09,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:20:09,929 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) [2022-07-12 15:20:10,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:20:10,887 INFO L93 Difference]: Finished difference Result 49981 states and 69435 transitions. [2022-07-12 15:20:10,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:20:10,888 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 [2022-07-12 15:20:10,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:20:11,085 INFO L225 Difference]: With dead ends: 49981 [2022-07-12 15:20:11,086 INFO L226 Difference]: Without dead ends: 30042 [2022-07-12 15:20:11,182 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 [2022-07-12 15:20:11,182 INFO L413 NwaCegarLoop]: 5222 mSDtfsCounter, 2573 mSDsluCounter, 2698 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2022-07-12 15:20:11,183 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] [2022-07-12 15:20:11,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30042 states. [2022-07-12 15:20:12,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30042 to 30038. [2022-07-12 15:20:12,511 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) [2022-07-12 15:20:12,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30038 states to 30038 states and 41707 transitions. [2022-07-12 15:20:12,650 INFO L78 Accepts]: Start accepts. Automaton has 30038 states and 41707 transitions. Word has length 231 [2022-07-12 15:20:12,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:20:12,651 INFO L495 AbstractCegarLoop]: Abstraction has 30038 states and 41707 transitions. [2022-07-12 15:20:12,651 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) [2022-07-12 15:20:12,651 INFO L276 IsEmpty]: Start isEmpty. Operand 30038 states and 41707 transitions. [2022-07-12 15:20:12,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-07-12 15:20:12,656 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:20:12,657 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] [2022-07-12 15:20:12,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-12 15:20:12,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:20:12,871 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:20:12,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:20:12,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1892161539, now seen corresponding path program 1 times [2022-07-12 15:20:12,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:20:12,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1628210627] [2022-07-12 15:20:12,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:20:12,874 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:20:12,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:20:12,876 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:20:12,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-12 15:20:13,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:13,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 1295 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:20:13,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:20:14,479 INFO L134 CoverageAnalysis]: Checked inductivity of 697 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 691 trivial. 0 not checked. [2022-07-12 15:20:14,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:20:14,853 INFO L134 CoverageAnalysis]: Checked inductivity of 697 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 691 trivial. 0 not checked. [2022-07-12 15:20:14,853 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:20:14,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1628210627] [2022-07-12 15:20:14,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1628210627] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:20:14,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:20:14,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:20:14,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097720417] [2022-07-12 15:20:14,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:20:14,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:20:14,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:20:14,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:20:14,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:20:14,855 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) [2022-07-12 15:20:15,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:20:15,763 INFO L93 Difference]: Finished difference Result 30044 states and 41712 transitions. [2022-07-12 15:20:15,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:20:15,764 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 [2022-07-12 15:20:15,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:20:16,022 INFO L225 Difference]: With dead ends: 30044 [2022-07-12 15:20:16,023 INFO L226 Difference]: Without dead ends: 30042 [2022-07-12 15:20:16,040 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 [2022-07-12 15:20:16,040 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 [2022-07-12 15:20:16,041 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] [2022-07-12 15:20:16,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30042 states. [2022-07-12 15:20:17,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30042 to 30042. [2022-07-12 15:20:17,082 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) [2022-07-12 15:20:17,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30042 states to 30042 states and 41710 transitions. [2022-07-12 15:20:17,207 INFO L78 Accepts]: Start accepts. Automaton has 30042 states and 41710 transitions. Word has length 220 [2022-07-12 15:20:17,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:20:17,208 INFO L495 AbstractCegarLoop]: Abstraction has 30042 states and 41710 transitions. [2022-07-12 15:20:17,208 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) [2022-07-12 15:20:17,208 INFO L276 IsEmpty]: Start isEmpty. Operand 30042 states and 41710 transitions. [2022-07-12 15:20:17,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-07-12 15:20:17,213 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:20:17,213 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] [2022-07-12 15:20:17,241 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-12 15:20:17,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:20:17,414 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:20:17,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:20:17,414 INFO L85 PathProgramCache]: Analyzing trace with hash 331270845, now seen corresponding path program 1 times [2022-07-12 15:20:17,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:20:17,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [196947985] [2022-07-12 15:20:17,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:20:17,416 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:20:17,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:20:17,417 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:20:17,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-12 15:20:18,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:18,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 1302 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:20:18,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:20:19,032 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2022-07-12 15:20:19,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:20:19,395 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2022-07-12 15:20:19,396 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:20:19,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [196947985] [2022-07-12 15:20:19,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [196947985] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:20:19,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:20:19,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:20:19,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574302751] [2022-07-12 15:20:19,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:20:19,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:20:19,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:20:19,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:20:19,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:20:19,398 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) [2022-07-12 15:20:20,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:20:20,156 INFO L93 Difference]: Finished difference Result 30048 states and 41715 transitions. [2022-07-12 15:20:20,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:20:20,157 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 [2022-07-12 15:20:20,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:20:20,433 INFO L225 Difference]: With dead ends: 30048 [2022-07-12 15:20:20,433 INFO L226 Difference]: Without dead ends: 30046 [2022-07-12 15:20:20,451 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 [2022-07-12 15:20:20,452 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 [2022-07-12 15:20:20,452 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] [2022-07-12 15:20:20,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30046 states. [2022-07-12 15:20:21,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30046 to 30046. [2022-07-12 15:20:21,643 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) [2022-07-12 15:20:21,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30046 states to 30046 states and 41713 transitions. [2022-07-12 15:20:21,775 INFO L78 Accepts]: Start accepts. Automaton has 30046 states and 41713 transitions. Word has length 225 [2022-07-12 15:20:21,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:20:21,775 INFO L495 AbstractCegarLoop]: Abstraction has 30046 states and 41713 transitions. [2022-07-12 15:20:21,776 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) [2022-07-12 15:20:21,776 INFO L276 IsEmpty]: Start isEmpty. Operand 30046 states and 41713 transitions. [2022-07-12 15:20:21,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-07-12 15:20:21,781 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:20:21,781 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] [2022-07-12 15:20:21,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-12 15:20:21,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:20:21,982 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)] === [2022-07-12 15:20:21,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:20:21,982 INFO L85 PathProgramCache]: Analyzing trace with hash 800071140, now seen corresponding path program 1 times [2022-07-12 15:20:21,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:20:21,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [754192349] [2022-07-12 15:20:21,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:20:21,984 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:20:21,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:20:21,985 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:20:21,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-12 15:20:23,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:23,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 1412 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:20:23,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:20:23,259 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 582 trivial. 0 not checked. [2022-07-12 15:20:23,259 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:20:23,259 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:20:23,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [754192349] [2022-07-12 15:20:23,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [754192349] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:20:23,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:20:23,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:20:23,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549496794] [2022-07-12 15:20:23,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:20:23,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:20:23,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:20:23,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:20:23,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:20:23,261 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) [2022-07-12 15:20:24,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:20:24,853 INFO L93 Difference]: Finished difference Result 69309 states and 96173 transitions. [2022-07-12 15:20:24,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:20:24,853 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 [2022-07-12 15:20:24,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:20:25,010 INFO L225 Difference]: With dead ends: 69309 [2022-07-12 15:20:25,011 INFO L226 Difference]: Without dead ends: 39657 [2022-07-12 15:20:25,103 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 [2022-07-12 15:20:25,103 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, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 15:20:25,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1520 Valid, 6860 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 15:20:25,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39657 states. [2022-07-12 15:20:26,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39657 to 39606. [2022-07-12 15:20:26,700 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) [2022-07-12 15:20:26,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39606 states to 39606 states and 54769 transitions. [2022-07-12 15:20:26,861 INFO L78 Accepts]: Start accepts. Automaton has 39606 states and 54769 transitions. Word has length 229 [2022-07-12 15:20:26,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:20:26,862 INFO L495 AbstractCegarLoop]: Abstraction has 39606 states and 54769 transitions. [2022-07-12 15:20:26,862 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) [2022-07-12 15:20:26,862 INFO L276 IsEmpty]: Start isEmpty. Operand 39606 states and 54769 transitions. [2022-07-12 15:20:26,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-07-12 15:20:26,866 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:20:26,866 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] [2022-07-12 15:20:26,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-12 15:20:27,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:20:27,092 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:20:27,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:20:27,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1643427773, now seen corresponding path program 1 times [2022-07-12 15:20:27,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:20:27,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [790941236] [2022-07-12 15:20:27,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:20:27,093 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:20:27,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:20:27,095 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:20:27,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-12 15:20:28,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:28,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 1309 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:20:28,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:20:28,928 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 719 trivial. 0 not checked. [2022-07-12 15:20:28,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:20:29,295 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 719 trivial. 0 not checked. [2022-07-12 15:20:29,295 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:20:29,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [790941236] [2022-07-12 15:20:29,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [790941236] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:20:29,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:20:29,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:20:29,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483347063] [2022-07-12 15:20:29,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:20:29,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:20:29,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:20:29,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:20:29,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:20:29,297 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) [2022-07-12 15:20:30,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:20:30,483 INFO L93 Difference]: Finished difference Result 39612 states and 54774 transitions. [2022-07-12 15:20:30,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:20:30,484 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 [2022-07-12 15:20:30,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:20:30,689 INFO L225 Difference]: With dead ends: 39612 [2022-07-12 15:20:30,689 INFO L226 Difference]: Without dead ends: 39610 [2022-07-12 15:20:30,724 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 [2022-07-12 15:20:30,725 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 [2022-07-12 15:20:30,725 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] [2022-07-12 15:20:30,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39610 states. [2022-07-12 15:20:32,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39610 to 39610. [2022-07-12 15:20:32,120 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) [2022-07-12 15:20:32,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39610 states to 39610 states and 54772 transitions. [2022-07-12 15:20:32,502 INFO L78 Accepts]: Start accepts. Automaton has 39610 states and 54772 transitions. Word has length 230 [2022-07-12 15:20:32,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:20:32,503 INFO L495 AbstractCegarLoop]: Abstraction has 39610 states and 54772 transitions. [2022-07-12 15:20:32,503 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) [2022-07-12 15:20:32,503 INFO L276 IsEmpty]: Start isEmpty. Operand 39610 states and 54772 transitions. [2022-07-12 15:20:32,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-07-12 15:20:32,507 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:20:32,508 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] [2022-07-12 15:20:32,547 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2022-07-12 15:20:32,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:20:32,723 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:20:32,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:20:32,724 INFO L85 PathProgramCache]: Analyzing trace with hash 428343933, now seen corresponding path program 1 times [2022-07-12 15:20:32,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:20:32,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [350370310] [2022-07-12 15:20:32,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:20:32,725 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:20:32,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:20:32,727 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:20:32,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-12 15:20:33,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:33,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 1316 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:20:33,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:20:34,434 INFO L134 CoverageAnalysis]: Checked inductivity of 751 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 739 trivial. 0 not checked. [2022-07-12 15:20:34,434 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:20:34,791 INFO L134 CoverageAnalysis]: Checked inductivity of 751 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 739 trivial. 0 not checked. [2022-07-12 15:20:34,791 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:20:34,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [350370310] [2022-07-12 15:20:34,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [350370310] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:20:34,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:20:34,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:20:34,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481137790] [2022-07-12 15:20:34,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:20:34,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:20:34,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:20:34,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:20:34,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:20:34,793 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) [2022-07-12 15:20:36,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:20:36,083 INFO L93 Difference]: Finished difference Result 41497 states and 56577 transitions. [2022-07-12 15:20:36,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:20:36,084 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 [2022-07-12 15:20:36,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:20:36,292 INFO L225 Difference]: With dead ends: 41497 [2022-07-12 15:20:36,292 INFO L226 Difference]: Without dead ends: 41495 [2022-07-12 15:20:36,324 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 [2022-07-12 15:20:36,325 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 [2022-07-12 15:20:36,325 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] [2022-07-12 15:20:36,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41495 states. [2022-07-12 15:20:37,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41495 to 41495. [2022-07-12 15:20:37,922 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) [2022-07-12 15:20:38,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41495 states to 41495 states and 56575 transitions. [2022-07-12 15:20:38,160 INFO L78 Accepts]: Start accepts. Automaton has 41495 states and 56575 transitions. Word has length 235 [2022-07-12 15:20:38,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:20:38,161 INFO L495 AbstractCegarLoop]: Abstraction has 41495 states and 56575 transitions. [2022-07-12 15:20:38,161 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) [2022-07-12 15:20:38,161 INFO L276 IsEmpty]: Start isEmpty. Operand 41495 states and 56575 transitions. [2022-07-12 15:20:38,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-07-12 15:20:38,166 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:20:38,166 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] [2022-07-12 15:20:38,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-12 15:20:38,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:20:38,380 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:20:38,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:20:38,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1271756931, now seen corresponding path program 1 times [2022-07-12 15:20:38,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:20:38,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [240821605] [2022-07-12 15:20:38,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:20:38,381 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:20:38,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:20:38,383 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:20:38,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-12 15:20:39,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:39,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 1323 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:20:39,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:20:40,595 INFO L134 CoverageAnalysis]: Checked inductivity of 777 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 763 trivial. 0 not checked. [2022-07-12 15:20:40,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:20:41,130 INFO L134 CoverageAnalysis]: Checked inductivity of 777 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 763 trivial. 0 not checked. [2022-07-12 15:20:41,131 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:20:41,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [240821605] [2022-07-12 15:20:41,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [240821605] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:20:41,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:20:41,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:20:41,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662419531] [2022-07-12 15:20:41,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:20:41,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:20:41,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:20:41,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:20:41,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:20:41,133 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) [2022-07-12 15:20:42,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:20:42,599 INFO L93 Difference]: Finished difference Result 41501 states and 56580 transitions. [2022-07-12 15:20:42,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:20:42,600 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 [2022-07-12 15:20:42,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:20:42,814 INFO L225 Difference]: With dead ends: 41501 [2022-07-12 15:20:42,814 INFO L226 Difference]: Without dead ends: 41499 [2022-07-12 15:20:42,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 481 GetRequests, 473 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:20:42,851 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 [2022-07-12 15:20:42,851 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] [2022-07-12 15:20:42,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41499 states. [2022-07-12 15:20:44,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41499 to 41499. [2022-07-12 15:20:44,479 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) [2022-07-12 15:20:44,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41499 states to 41499 states and 56578 transitions. [2022-07-12 15:20:44,640 INFO L78 Accepts]: Start accepts. Automaton has 41499 states and 56578 transitions. Word has length 240 [2022-07-12 15:20:44,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:20:44,641 INFO L495 AbstractCegarLoop]: Abstraction has 41499 states and 56578 transitions. [2022-07-12 15:20:44,641 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) [2022-07-12 15:20:44,641 INFO L276 IsEmpty]: Start isEmpty. Operand 41499 states and 56578 transitions. [2022-07-12 15:20:44,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-07-12 15:20:44,645 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:20:44,646 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] [2022-07-12 15:20:44,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-12 15:20:44,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:20:44,868 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)] === [2022-07-12 15:20:44,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:20:44,868 INFO L85 PathProgramCache]: Analyzing trace with hash 678443581, now seen corresponding path program 1 times [2022-07-12 15:20:44,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:20:44,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [614245036] [2022-07-12 15:20:44,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:20:44,869 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:20:44,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:20:44,870 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) [2022-07-12 15:20:44,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-12 15:20:45,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:45,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 1330 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:20:45,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:20:46,997 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 791 trivial. 0 not checked. [2022-07-12 15:20:46,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:20:47,513 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 791 trivial. 0 not checked. [2022-07-12 15:20:47,514 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:20:47,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [614245036] [2022-07-12 15:20:47,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [614245036] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:20:47,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:20:47,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:20:47,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770207408] [2022-07-12 15:20:47,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:20:47,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:20:47,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:20:47,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:20:47,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:20:47,515 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) [2022-07-12 15:20:48,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:20:48,889 INFO L93 Difference]: Finished difference Result 41505 states and 56583 transitions. [2022-07-12 15:20:48,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:20:48,889 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 [2022-07-12 15:20:48,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:20:49,039 INFO L225 Difference]: With dead ends: 41505 [2022-07-12 15:20:49,039 INFO L226 Difference]: Without dead ends: 41503 [2022-07-12 15:20:49,065 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 [2022-07-12 15:20:49,066 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, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:20:49,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2661 Valid, 8156 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:20:49,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41503 states. [2022-07-12 15:20:50,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41503 to 41503. [2022-07-12 15:20:50,633 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) [2022-07-12 15:20:50,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41503 states to 41503 states and 56581 transitions. [2022-07-12 15:20:50,856 INFO L78 Accepts]: Start accepts. Automaton has 41503 states and 56581 transitions. Word has length 245 [2022-07-12 15:20:50,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:20:50,857 INFO L495 AbstractCegarLoop]: Abstraction has 41503 states and 56581 transitions. [2022-07-12 15:20:50,857 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) [2022-07-12 15:20:50,857 INFO L276 IsEmpty]: Start isEmpty. Operand 41503 states and 56581 transitions. [2022-07-12 15:20:50,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-07-12 15:20:50,864 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:20:50,864 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] [2022-07-12 15:20:50,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-12 15:20:51,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:20:51,080 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)] === [2022-07-12 15:20:51,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:20:51,080 INFO L85 PathProgramCache]: Analyzing trace with hash -659466435, now seen corresponding path program 1 times [2022-07-12 15:20:51,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:20:51,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [551946673] [2022-07-12 15:20:51,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:20:51,082 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:20:51,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:20:51,084 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) [2022-07-12 15:20:51,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-12 15:20:52,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:52,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 1337 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:20:52,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:20:53,375 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 823 trivial. 0 not checked. [2022-07-12 15:20:53,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:20:53,859 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 823 trivial. 0 not checked. [2022-07-12 15:20:53,860 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:20:53,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [551946673] [2022-07-12 15:20:53,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [551946673] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:20:53,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:20:53,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:20:53,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626973215] [2022-07-12 15:20:53,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:20:53,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:20:53,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:20:53,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:20:53,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:20:53,862 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) [2022-07-12 15:20:55,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:20:55,199 INFO L93 Difference]: Finished difference Result 41509 states and 56586 transitions. [2022-07-12 15:20:55,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:20:55,200 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 [2022-07-12 15:20:55,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:20:55,378 INFO L225 Difference]: With dead ends: 41509 [2022-07-12 15:20:55,379 INFO L226 Difference]: Without dead ends: 41507 [2022-07-12 15:20:55,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 493 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:20:55,408 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, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:20:55,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2660 Valid, 8156 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:20:55,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41507 states. [2022-07-12 15:20:56,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41507 to 41507. [2022-07-12 15:20:56,835 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) [2022-07-12 15:20:57,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41507 states to 41507 states and 56584 transitions. [2022-07-12 15:20:57,177 INFO L78 Accepts]: Start accepts. Automaton has 41507 states and 56584 transitions. Word has length 250 [2022-07-12 15:20:57,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:20:57,178 INFO L495 AbstractCegarLoop]: Abstraction has 41507 states and 56584 transitions. [2022-07-12 15:20:57,178 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) [2022-07-12 15:20:57,178 INFO L276 IsEmpty]: Start isEmpty. Operand 41507 states and 56584 transitions. [2022-07-12 15:20:57,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2022-07-12 15:20:57,183 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:20:57,184 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] [2022-07-12 15:20:57,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-12 15:20:57,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:20:57,400 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)] === [2022-07-12 15:20:57,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:20:57,400 INFO L85 PathProgramCache]: Analyzing trace with hash -2071201209, now seen corresponding path program 1 times [2022-07-12 15:20:57,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:20:57,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1278667397] [2022-07-12 15:20:57,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:20:57,402 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:20:57,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:20:57,403 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) [2022-07-12 15:20:57,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-12 15:20:58,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:20:58,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 1428 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-12 15:20:58,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:20:59,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 237 proven. 3 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-07-12 15:20:59,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:21:00,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 51 proven. 18 refuted. 0 times theorem prover too weak. 951 trivial. 0 not checked. [2022-07-12 15:21:00,344 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:21:00,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1278667397] [2022-07-12 15:21:00,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1278667397] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 15:21:00,344 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 15:21:00,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 22 [2022-07-12 15:21:00,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191542561] [2022-07-12 15:21:00,345 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 15:21:00,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-12 15:21:00,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:21:00,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-12 15:21:00,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-07-12 15:21:00,346 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) [2022-07-12 15:21:23,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:21:23,246 INFO L93 Difference]: Finished difference Result 109808 states and 149603 transitions. [2022-07-12 15:21:23,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-12 15:21:23,248 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 [2022-07-12 15:21:23,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:21:23,589 INFO L225 Difference]: With dead ends: 109808 [2022-07-12 15:21:23,589 INFO L226 Difference]: Without dead ends: 68234 [2022-07-12 15:21:23,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 595 GetRequests, 561 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=181, Invalid=1079, Unknown=0, NotChecked=0, Total=1260 [2022-07-12 15:21:23,732 INFO L413 NwaCegarLoop]: 5947 mSDtfsCounter, 8030 mSDsluCounter, 86117 mSDsCounter, 0 mSdLazyCounter, 7611 mSolverCounterSat, 1596 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.9s 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, 18.7s IncrementalHoareTripleChecker+Time [2022-07-12 15:21:23,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8262 Valid, 92064 Invalid, 9207 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1596 Valid, 7611 Invalid, 0 Unknown, 0 Unchecked, 18.7s Time] [2022-07-12 15:21:23,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68234 states. [2022-07-12 15:21:26,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68234 to 54638. [2022-07-12 15:21:26,363 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) [2022-07-12 15:21:26,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54638 states to 54638 states and 74422 transitions. [2022-07-12 15:21:26,633 INFO L78 Accepts]: Start accepts. Automaton has 54638 states and 74422 transitions. Word has length 291 [2022-07-12 15:21:26,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:21:26,634 INFO L495 AbstractCegarLoop]: Abstraction has 54638 states and 74422 transitions. [2022-07-12 15:21:26,634 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) [2022-07-12 15:21:26,634 INFO L276 IsEmpty]: Start isEmpty. Operand 54638 states and 74422 transitions. [2022-07-12 15:21:26,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-07-12 15:21:26,638 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:21:26,639 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] [2022-07-12 15:21:26,679 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-07-12 15:21:26,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:21:26,859 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)] === [2022-07-12 15:21:26,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:21:26,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1514704387, now seen corresponding path program 1 times [2022-07-12 15:21:26,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:21:26,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1906660845] [2022-07-12 15:21:26,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:21:26,862 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:21:26,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:21:26,863 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) [2022-07-12 15:21:26,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-07-12 15:21:27,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:27,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 1344 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:21:27,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:21:28,800 INFO L134 CoverageAnalysis]: Checked inductivity of 879 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 859 trivial. 0 not checked. [2022-07-12 15:21:28,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:21:29,369 INFO L134 CoverageAnalysis]: Checked inductivity of 879 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 859 trivial. 0 not checked. [2022-07-12 15:21:29,370 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:21:29,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1906660845] [2022-07-12 15:21:29,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1906660845] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:21:29,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:21:29,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:21:29,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728858211] [2022-07-12 15:21:29,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:21:29,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:21:29,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:21:29,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:21:29,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:21:29,372 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) [2022-07-12 15:21:31,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:21:31,203 INFO L93 Difference]: Finished difference Result 54644 states and 74427 transitions. [2022-07-12 15:21:31,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:21:31,203 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 [2022-07-12 15:21:31,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:21:31,442 INFO L225 Difference]: With dead ends: 54644 [2022-07-12 15:21:31,442 INFO L226 Difference]: Without dead ends: 54640 [2022-07-12 15:21:31,476 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 [2022-07-12 15:21:31,476 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, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:21:31,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2659 Valid, 8156 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:21:31,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54640 states. [2022-07-12 15:21:33,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54640 to 54640. [2022-07-12 15:21:33,879 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) [2022-07-12 15:21:34,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54640 states to 54640 states and 74423 transitions. [2022-07-12 15:21:34,308 INFO L78 Accepts]: Start accepts. Automaton has 54640 states and 74423 transitions. Word has length 255 [2022-07-12 15:21:34,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:21:34,309 INFO L495 AbstractCegarLoop]: Abstraction has 54640 states and 74423 transitions. [2022-07-12 15:21:34,309 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) [2022-07-12 15:21:34,309 INFO L276 IsEmpty]: Start isEmpty. Operand 54640 states and 74423 transitions. [2022-07-12 15:21:34,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-07-12 15:21:34,312 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:21:34,312 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] [2022-07-12 15:21:34,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-07-12 15:21:34,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:21:34,513 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)] === [2022-07-12 15:21:34,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:21:34,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1305401603, now seen corresponding path program 1 times [2022-07-12 15:21:34,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:21:34,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [275281623] [2022-07-12 15:21:34,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:21:34,515 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:21:34,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:21:34,516 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) [2022-07-12 15:21:34,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-07-12 15:21:35,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:35,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 1351 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:21:35,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:21:36,630 INFO L134 CoverageAnalysis]: Checked inductivity of 921 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 899 trivial. 0 not checked. [2022-07-12 15:21:36,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:21:37,161 INFO L134 CoverageAnalysis]: Checked inductivity of 921 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 899 trivial. 0 not checked. [2022-07-12 15:21:37,162 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:21:37,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [275281623] [2022-07-12 15:21:37,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [275281623] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:21:37,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:21:37,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:21:37,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835533503] [2022-07-12 15:21:37,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:21:37,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:21:37,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:21:37,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:21:37,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:21:37,165 INFO L87 Difference]: Start difference. First operand 54640 states and 74423 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, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-12 15:21:39,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:21:39,340 INFO L93 Difference]: Finished difference Result 54640 states and 74423 transitions. [2022-07-12 15:21:39,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:21:39,340 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, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 260 [2022-07-12 15:21:39,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:21:39,578 INFO L225 Difference]: With dead ends: 54640 [2022-07-12 15:21:39,578 INFO L226 Difference]: Without dead ends: 53964 [2022-07-12 15:21:39,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 521 GetRequests, 513 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:21:39,605 INFO L413 NwaCegarLoop]: 2723 mSDtfsCounter, 2654 mSDsluCounter, 5430 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2654 SdHoareTripleChecker+Valid, 8153 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 15:21:39,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2654 Valid, 8153 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 15:21:39,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53964 states. [2022-07-12 15:21:41,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53964 to 40969. [2022-07-12 15:21:41,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40969 states, 28563 states have (on average 1.2635927598641599) internal successors, (36092), 29016 states have internal predecessors, (36092), 9828 states have call successors, (9828), 2591 states have call predecessors, (9828), 2576 states have return successors, (9849), 9670 states have call predecessors, (9849), 9828 states have call successors, (9849) [2022-07-12 15:21:41,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40969 states to 40969 states and 55769 transitions. [2022-07-12 15:21:41,903 INFO L78 Accepts]: Start accepts. Automaton has 40969 states and 55769 transitions. Word has length 260 [2022-07-12 15:21:41,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:21:41,903 INFO L495 AbstractCegarLoop]: Abstraction has 40969 states and 55769 transitions. [2022-07-12 15:21:41,903 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, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-12 15:21:41,903 INFO L276 IsEmpty]: Start isEmpty. Operand 40969 states and 55769 transitions. [2022-07-12 15:21:41,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2022-07-12 15:21:41,908 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:21:41,909 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 11, 11, 11, 11, 11, 11, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:21:41,938 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Ended with exit code 0 [2022-07-12 15:21:42,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:21:42,112 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:21:42,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:21:42,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1550306375, now seen corresponding path program 1 times [2022-07-12 15:21:42,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:21:42,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [230959710] [2022-07-12 15:21:42,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:21:42,114 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:21:42,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:21:42,119 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 15:21:42,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-07-12 15:21:43,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:21:43,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 1552 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:21:43,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:21:43,399 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2022-07-12 15:21:43,400 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:21:43,400 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:21:43,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [230959710] [2022-07-12 15:21:43,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [230959710] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:21:43,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:21:43,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:21:43,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396424188] [2022-07-12 15:21:43,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:21:43,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:21:43,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:21:43,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:21:43,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:21:43,403 INFO L87 Difference]: Start difference. First operand 40969 states and 55769 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29)