./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.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 5a5abe7d84ebfba3a3d05a8884a5cfb8bfd1e0698553d38fcfc4a2d2724f4159 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 03:51:14,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 03:51:14,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 03:51:14,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 03:51:14,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 03:51:14,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 03:51:14,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 03:51:14,422 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 03:51:14,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 03:51:14,427 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 03:51:14,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 03:51:14,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 03:51:14,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 03:51:14,431 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 03:51:14,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 03:51:14,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 03:51:14,435 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 03:51:14,436 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 03:51:14,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 03:51:14,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 03:51:14,444 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 03:51:14,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 03:51:14,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 03:51:14,446 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 03:51:14,447 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 03:51:14,452 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 03:51:14,452 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 03:51:14,453 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 03:51:14,453 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 03:51:14,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 03:51:14,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 03:51:14,456 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 03:51:14,457 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 03:51:14,457 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 03:51:14,458 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 03:51:14,458 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 03:51:14,459 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 03:51:14,459 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 03:51:14,459 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 03:51:14,459 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 03:51:14,460 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 03:51:14,461 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 03:51:14,463 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 03:51:14,486 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 03:51:14,486 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 03:51:14,486 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 03:51:14,486 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 03:51:14,487 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 03:51:14,487 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 03:51:14,488 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 03:51:14,488 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 03:51:14,488 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 03:51:14,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 03:51:14,489 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 03:51:14,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 03:51:14,489 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 03:51:14,490 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 03:51:14,490 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 03:51:14,490 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 03:51:14,490 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 03:51:14,490 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 03:51:14,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 03:51:14,491 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 03:51:14,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 03:51:14,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 03:51:14,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 03:51:14,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 03:51:14,491 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 03:51:14,491 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 03:51:14,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 03:51:14,492 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 03:51:14,492 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 03:51:14,492 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 03:51:14,492 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a5abe7d84ebfba3a3d05a8884a5cfb8bfd1e0698553d38fcfc4a2d2724f4159 [2022-07-23 03:51:14,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 03:51:14,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 03:51:14,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 03:51:14,721 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 03:51:14,722 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 03:51:14,723 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2022-07-23 03:51:14,782 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47d9079a4/51abba9d98d3492ab88314c74c5f1e2b/FLAG8bf72b5df [2022-07-23 03:51:15,410 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 03:51:15,410 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2022-07-23 03:51:15,448 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47d9079a4/51abba9d98d3492ab88314c74c5f1e2b/FLAG8bf72b5df [2022-07-23 03:51:15,568 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47d9079a4/51abba9d98d3492ab88314c74c5f1e2b [2022-07-23 03:51:15,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 03:51:15,571 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 03:51:15,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 03:51:15,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 03:51:15,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 03:51:15,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:51:15" (1/1) ... [2022-07-23 03:51:15,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a4652f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:51:15, skipping insertion in model container [2022-07-23 03:51:15,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:51:15" (1/1) ... [2022-07-23 03:51:15,583 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 03:51:15,706 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 03:51:18,002 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459471,459484] [2022-07-23 03:51:18,004 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459640,459653] [2022-07-23 03:51:18,005 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459807,459820] [2022-07-23 03:51:18,005 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459975,459988] [2022-07-23 03:51:18,053 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 03:51:18,114 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 03:51:18,329 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: eeprom_val = (unsigned int )eeprom_val & 255U [9064] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-23 03:51:18,335 INFO L158 Benchmark]: Toolchain (without parser) took 2762.23ms. Allocated memory was 117.4MB in the beginning and 157.3MB in the end (delta: 39.8MB). Free memory was 70.4MB in the beginning and 61.4MB in the end (delta: 9.1MB). Peak memory consumption was 68.6MB. Max. memory is 16.1GB. [2022-07-23 03:51:18,335 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 117.4MB. Free memory is still 71.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 03:51:18,336 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2759.11ms. Allocated memory was 117.4MB in the beginning and 157.3MB in the end (delta: 39.8MB). Free memory was 70.4MB in the beginning and 61.4MB in the end (delta: 9.1MB). Peak memory consumption was 68.6MB. Max. memory is 16.1GB. [2022-07-23 03:51:18,337 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 117.4MB. Free memory is still 71.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2759.11ms. Allocated memory was 117.4MB in the beginning and 157.3MB in the end (delta: 39.8MB). Free memory was 70.4MB in the beginning and 61.4MB in the end (delta: 9.1MB). Peak memory consumption was 68.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: eeprom_val = (unsigned int )eeprom_val & 255U [9064] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: eeprom_val = (unsigned int )eeprom_val & 255U [9064]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.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 5a5abe7d84ebfba3a3d05a8884a5cfb8bfd1e0698553d38fcfc4a2d2724f4159 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 03:51:19,877 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 03:51:19,879 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 03:51:19,916 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 03:51:19,917 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 03:51:19,917 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 03:51:19,920 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 03:51:19,922 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 03:51:19,924 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 03:51:19,928 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 03:51:19,929 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 03:51:19,930 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 03:51:19,931 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 03:51:19,932 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 03:51:19,933 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 03:51:19,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 03:51:19,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 03:51:19,942 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 03:51:19,945 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 03:51:19,949 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 03:51:19,950 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 03:51:19,951 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 03:51:19,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 03:51:19,953 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 03:51:19,954 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 03:51:19,959 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 03:51:19,959 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 03:51:19,959 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 03:51:19,960 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 03:51:19,960 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 03:51:19,961 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 03:51:19,961 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 03:51:19,962 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 03:51:19,963 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 03:51:19,964 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 03:51:19,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 03:51:19,965 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 03:51:19,965 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 03:51:19,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 03:51:19,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 03:51:19,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 03:51:19,967 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 03:51:19,973 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-23 03:51:19,990 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 03:51:19,990 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 03:51:19,990 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 03:51:19,991 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 03:51:19,991 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 03:51:19,991 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 03:51:19,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 03:51:19,992 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 03:51:19,992 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 03:51:19,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 03:51:19,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 03:51:19,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 03:51:19,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 03:51:19,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 03:51:19,998 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-23 03:51:19,998 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-23 03:51:19,998 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-23 03:51:19,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 03:51:19,999 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 03:51:19,999 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 03:51:19,999 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 03:51:19,999 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 03:51:19,999 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 03:51:20,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 03:51:20,000 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 03:51:20,000 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 03:51:20,001 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 03:51:20,001 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-23 03:51:20,001 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-23 03:51:20,001 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 03:51:20,001 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 03:51:20,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 03:51:20,002 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-23 03:51:20,002 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a5abe7d84ebfba3a3d05a8884a5cfb8bfd1e0698553d38fcfc4a2d2724f4159 [2022-07-23 03:51:20,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 03:51:20,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 03:51:20,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 03:51:20,300 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 03:51:20,301 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 03:51:20,302 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2022-07-23 03:51:20,361 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f15fc4e8/38201c9d2ebb42bcb2ca6b3c42a8f9c2/FLAG1af91bc8a [2022-07-23 03:51:21,048 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 03:51:21,049 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2022-07-23 03:51:21,123 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f15fc4e8/38201c9d2ebb42bcb2ca6b3c42a8f9c2/FLAG1af91bc8a [2022-07-23 03:51:21,389 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f15fc4e8/38201c9d2ebb42bcb2ca6b3c42a8f9c2 [2022-07-23 03:51:21,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 03:51:21,392 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 03:51:21,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 03:51:21,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 03:51:21,396 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 03:51:21,396 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:51:21" (1/1) ... [2022-07-23 03:51:21,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eb6f8d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:51:21, skipping insertion in model container [2022-07-23 03:51:21,397 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:51:21" (1/1) ... [2022-07-23 03:51:21,403 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 03:51:21,528 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 03:51:23,424 WARN L570 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2022-07-23 03:51:23,450 WARN L570 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2022-07-23 03:51:23,469 WARN L570 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2022-07-23 03:51:23,850 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459471,459484] [2022-07-23 03:51:23,852 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459640,459653] [2022-07-23 03:51:23,855 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459807,459820] [2022-07-23 03:51:23,855 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459975,459988] [2022-07-23 03:51:23,873 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 03:51:23,932 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-23 03:51:24,006 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 03:51:24,269 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459471,459484] [2022-07-23 03:51:24,269 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459640,459653] [2022-07-23 03:51:24,269 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459807,459820] [2022-07-23 03:51:24,270 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459975,459988] [2022-07-23 03:51:24,274 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 03:51:24,296 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 03:51:24,667 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459471,459484] [2022-07-23 03:51:24,683 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459640,459653] [2022-07-23 03:51:24,684 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459807,459820] [2022-07-23 03:51:24,684 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[459975,459988] [2022-07-23 03:51:24,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 03:51:24,921 INFO L208 MainTranslator]: Completed translation [2022-07-23 03:51:24,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:51:24 WrapperNode [2022-07-23 03:51:24,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 03:51:24,924 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 03:51:24,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 03:51:24,924 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 03:51:24,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:51:24" (1/1) ... [2022-07-23 03:51:25,016 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:51:24" (1/1) ... [2022-07-23 03:51:25,182 INFO L137 Inliner]: procedures = 537, calls = 3749, calls flagged for inlining = 276, calls inlined = 260, statements flattened = 6599 [2022-07-23 03:51:25,183 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 03:51:25,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 03:51:25,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 03:51:25,184 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 03:51:25,190 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:51:24" (1/1) ... [2022-07-23 03:51:25,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:51:24" (1/1) ... [2022-07-23 03:51:25,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:51:24" (1/1) ... [2022-07-23 03:51:25,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:51:24" (1/1) ... [2022-07-23 03:51:25,349 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:51:24" (1/1) ... [2022-07-23 03:51:25,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:51:24" (1/1) ... [2022-07-23 03:51:25,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:51:24" (1/1) ... [2022-07-23 03:51:25,481 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 03:51:25,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 03:51:25,482 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 03:51:25,482 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 03:51:25,483 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:51:24" (1/1) ... [2022-07-23 03:51:25,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 03:51:25,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 03:51:25,517 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-23 03:51:25,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-23 03:51:25,542 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread8 [2022-07-23 03:51:25,543 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread8 [2022-07-23 03:51:25,543 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2022-07-23 03:51:25,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2022-07-23 03:51:25,543 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_tx_ring [2022-07-23 03:51:25,543 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_tx_ring [2022-07-23 03:51:25,543 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8 [2022-07-23 03:51:25,543 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8 [2022-07-23 03:51:25,543 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-23 03:51:25,544 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-23 03:51:25,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-23 03:51:25,544 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-23 03:51:25,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 03:51:25,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 03:51:25,544 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_init [2022-07-23 03:51:25,544 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_init [2022-07-23 03:51:25,544 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_calc_rssi [2022-07-23 03:51:25,544 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_calc_rssi [2022-07-23 03:51:25,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-23 03:51:25,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-23 03:51:25,545 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-23 03:51:25,545 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-23 03:51:25,545 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-23 03:51:25,545 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-23 03:51:25,545 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-23 03:51:25,545 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-23 03:51:25,546 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_write_phy_antenna [2022-07-23 03:51:25,546 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_write_phy_antenna [2022-07-23 03:51:25,546 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_init [2022-07-23 03:51:25,546 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_init [2022-07-23 03:51:25,546 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread32 [2022-07-23 03:51:25,546 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread32 [2022-07-23 03:51:25,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-23 03:51:25,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-23 03:51:25,547 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_rx_ring [2022-07-23 03:51:25,547 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_rx_ring [2022-07-23 03:51:25,547 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_bss_info_changed [2022-07-23 03:51:25,547 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_bss_info_changed [2022-07-23 03:51:25,547 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_calc_rssi [2022-07-23 03:51:25,547 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_calc_rssi [2022-07-23 03:51:25,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-23 03:51:25,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-23 03:51:25,548 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-23 03:51:25,548 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-23 03:51:25,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rtl8180_driver_exit_14_2 [2022-07-23 03:51:25,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rtl8180_driver_exit_14_2 [2022-07-23 03:51:25,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 03:51:25,548 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_set_tx_power [2022-07-23 03:51:25,548 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_set_tx_power [2022-07-23 03:51:25,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-23 03:51:25,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-23 03:51:25,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-23 03:51:25,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-23 03:51:25,549 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread16 [2022-07-23 03:51:25,549 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread16 [2022-07-23 03:51:25,549 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam [2022-07-23 03:51:25,549 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam [2022-07-23 03:51:25,549 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_tx_rate [2022-07-23 03:51:25,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_tx_rate [2022-07-23 03:51:25,550 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_conf_erp [2022-07-23 03:51:25,550 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_conf_erp [2022-07-23 03:51:25,550 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-23 03:51:25,550 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-23 03:51:25,550 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-23 03:51:25,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-23 03:51:25,550 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_stop [2022-07-23 03:51:25,550 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_stop [2022-07-23 03:51:25,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-23 03:51:25,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-23 03:51:25,551 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_stop [2022-07-23 03:51:25,551 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_stop [2022-07-23 03:51:25,551 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-23 03:51:25,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-23 03:51:25,551 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_get_tsf [2022-07-23 03:51:25,551 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_get_tsf [2022-07-23 03:51:25,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-23 03:51:25,551 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-23 03:51:25,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-23 03:51:25,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-23 03:51:25,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-23 03:51:25,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-23 03:51:25,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-23 03:51:25,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-23 03:51:25,552 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2022-07-23 03:51:25,552 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2022-07-23 03:51:25,552 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_add_interface [2022-07-23 03:51:25,553 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_add_interface [2022-07-23 03:51:25,553 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_write_phy_antenna [2022-07-23 03:51:25,553 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_write_phy_antenna [2022-07-23 03:51:25,553 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-23 03:51:25,553 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-23 03:51:25,553 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-23 03:51:25,553 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-23 03:51:25,553 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_channel [2022-07-23 03:51:25,553 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_channel [2022-07-23 03:51:25,554 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_tx_power [2022-07-23 03:51:25,554 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_tx_power [2022-07-23 03:51:25,554 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_set_channel [2022-07-23 03:51:25,554 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_set_channel [2022-07-23 03:51:25,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-23 03:51:25,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-23 03:51:25,554 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-07-23 03:51:25,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-07-23 03:51:25,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 03:51:25,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-23 03:51:25,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-23 03:51:25,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-23 03:51:25,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-23 03:51:25,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 03:51:25,555 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-07-23 03:51:25,555 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-07-23 03:51:25,556 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2022-07-23 03:51:25,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2022-07-23 03:51:25,556 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_cck [2022-07-23 03:51:25,556 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_cck [2022-07-23 03:51:25,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-23 03:51:25,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-23 03:51:25,556 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-23 03:51:25,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-23 03:51:25,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 03:51:25,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-23 03:51:25,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-23 03:51:25,557 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-23 03:51:25,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-23 03:51:25,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-23 03:51:25,557 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_rts_cts_rate [2022-07-23 03:51:25,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_rts_cts_rate [2022-07-23 03:51:25,557 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_start [2022-07-23 03:51:25,557 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_start [2022-07-23 03:51:25,558 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_set_channel [2022-07-23 03:51:25,558 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_set_channel [2022-07-23 03:51:25,558 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-23 03:51:25,558 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-23 03:51:25,558 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_resume [2022-07-23 03:51:25,558 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_resume [2022-07-23 03:51:25,558 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_ofdm [2022-07-23 03:51:25,558 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_ofdm [2022-07-23 03:51:25,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_rtl8180_priv [2022-07-23 03:51:25,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_rtl8180_priv [2022-07-23 03:51:25,559 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_calc_rssi [2022-07-23 03:51:25,559 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_calc_rssi [2022-07-23 03:51:25,559 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_write_phy [2022-07-23 03:51:25,559 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_write_phy [2022-07-23 03:51:25,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-23 03:51:25,559 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-07-23 03:51:25,559 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-07-23 03:51:25,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 03:51:25,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 03:51:25,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-23 03:51:25,560 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-23 03:51:25,560 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-23 03:51:25,560 INFO L130 BoogieDeclarations]: Found specification of procedure write_sa2400 [2022-07-23 03:51:25,560 INFO L138 BoogieDeclarations]: Found implementation of procedure write_sa2400 [2022-07-23 03:51:25,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-23 03:51:25,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-23 03:51:25,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-23 03:51:25,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-23 03:51:25,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-23 03:51:25,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 03:51:25,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 03:51:25,561 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_stop [2022-07-23 03:51:25,561 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_stop [2022-07-23 03:51:25,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-23 03:51:25,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-23 03:51:25,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ieee80211_free_hw [2022-07-23 03:51:25,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ieee80211_free_hw [2022-07-23 03:51:25,562 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_init [2022-07-23 03:51:25,562 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_init [2022-07-23 03:51:25,562 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_init [2022-07-23 03:51:25,562 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_init [2022-07-23 03:51:25,562 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove [2022-07-23 03:51:25,562 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove [2022-07-23 03:51:25,562 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-07-23 03:51:25,562 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-07-23 03:51:25,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-23 03:51:25,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-23 03:51:25,563 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-23 03:51:25,563 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-23 03:51:25,563 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_stop [2022-07-23 03:51:25,563 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_stop [2022-07-23 03:51:25,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-23 03:51:25,563 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-23 03:51:25,563 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-23 03:51:25,563 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-23 03:51:25,564 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write [2022-07-23 03:51:25,564 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write [2022-07-23 03:51:25,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 03:51:25,564 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_write_phy_antenna [2022-07-23 03:51:25,564 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_write_phy_antenna [2022-07-23 03:51:25,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 03:51:25,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-23 03:51:25,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-23 03:51:25,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-23 03:51:25,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-23 03:51:25,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 03:51:25,565 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-07-23 03:51:25,565 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-07-23 03:51:25,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-23 03:51:25,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-23 03:51:25,565 INFO L130 BoogieDeclarations]: Found specification of procedure write_max2820 [2022-07-23 03:51:25,565 INFO L138 BoogieDeclarations]: Found implementation of procedure write_max2820 [2022-07-23 03:51:25,565 INFO L130 BoogieDeclarations]: Found specification of procedure write_grf5101 [2022-07-23 03:51:25,565 INFO L138 BoogieDeclarations]: Found implementation of procedure write_grf5101 [2022-07-23 03:51:25,566 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove_interface [2022-07-23 03:51:25,566 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove_interface [2022-07-23 03:51:25,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_61 [2022-07-23 03:51:25,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_61 [2022-07-23 03:51:25,566 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-07-23 03:51:25,566 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-07-23 03:51:25,566 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_read [2022-07-23 03:51:25,566 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_read [2022-07-23 03:51:25,566 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-23 03:51:25,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-23 03:51:25,567 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_set_channel [2022-07-23 03:51:25,567 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_set_channel [2022-07-23 03:51:25,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-23 03:51:25,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-23 03:51:25,567 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_read [2022-07-23 03:51:25,567 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_read [2022-07-23 03:51:25,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-23 03:51:25,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-23 03:51:25,567 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-07-23 03:51:25,568 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-07-23 03:51:25,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-23 03:51:25,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-23 03:51:25,568 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_tx [2022-07-23 03:51:25,568 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_tx [2022-07-23 03:51:25,568 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_configure_filter [2022-07-23 03:51:25,568 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_configure_filter [2022-07-23 03:51:25,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_rtl8180_priv [2022-07-23 03:51:25,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_rtl8180_priv [2022-07-23 03:51:25,569 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-07-23 03:51:25,569 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-07-23 03:51:25,569 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-07-23 03:51:25,569 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-07-23 03:51:25,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-23 03:51:25,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-23 03:51:25,569 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_prepare_multicast [2022-07-23 03:51:25,569 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_prepare_multicast [2022-07-23 03:51:25,569 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-23 03:51:25,570 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-23 03:51:25,570 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32 [2022-07-23 03:51:25,570 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32 [2022-07-23 03:51:25,570 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_multiread [2022-07-23 03:51:25,570 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_multiread [2022-07-23 03:51:25,570 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-07-23 03:51:25,570 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-07-23 03:51:25,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-07-23 03:51:25,570 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_config [2022-07-23 03:51:25,571 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_config [2022-07-23 03:51:25,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-23 03:51:25,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-23 03:51:25,571 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_tx [2022-07-23 03:51:25,571 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_tx [2022-07-23 03:51:25,571 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16 [2022-07-23 03:51:25,571 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16 [2022-07-23 03:51:25,571 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2022-07-23 03:51:25,571 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2022-07-23 03:51:26,435 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 03:51:26,438 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 03:51:26,659 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 03:52:05,001 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-23 03:52:05,142 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 03:52:05,175 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 03:52:05,175 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-23 03:52:05,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:52:05 BoogieIcfgContainer [2022-07-23 03:52:05,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 03:52:05,185 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 03:52:05,185 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 03:52:05,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 03:52:05,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 03:51:21" (1/3) ... [2022-07-23 03:52:05,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cabb4b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 03:52:05, skipping insertion in model container [2022-07-23 03:52:05,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:51:24" (2/3) ... [2022-07-23 03:52:05,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cabb4b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 03:52:05, skipping insertion in model container [2022-07-23 03:52:05,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:52:05" (3/3) ... [2022-07-23 03:52:05,192 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2022-07-23 03:52:05,206 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 03:52:05,206 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-23 03:52:05,331 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 03:52:05,340 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@623e8160, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@79638205 [2022-07-23 03:52:05,341 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-23 03:52:05,354 INFO L276 IsEmpty]: Start isEmpty. Operand has 3088 states, 1764 states have (on average 1.251700680272109) internal successors, (2208), 1802 states have internal predecessors, (2208), 1209 states have call successors, (1209), 113 states have call predecessors, (1209), 112 states have return successors, (1201), 1184 states have call predecessors, (1201), 1201 states have call successors, (1201) [2022-07-23 03:52:05,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2022-07-23 03:52:05,396 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:52:05,397 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 03:52:05,398 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 03:52:05,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:52:05,404 INFO L85 PathProgramCache]: Analyzing trace with hash 978317410, now seen corresponding path program 1 times [2022-07-23 03:52:05,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:52:05,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [351717694] [2022-07-23 03:52:05,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:52:05,428 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:52:05,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:52:05,431 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 03:52:05,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-23 03:52:12,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:52:13,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 3751 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 03:52:13,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:52:13,523 INFO L134 CoverageAnalysis]: Checked inductivity of 5778 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 5670 trivial. 0 not checked. [2022-07-23 03:52:13,523 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 03:52:13,524 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:52:13,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [351717694] [2022-07-23 03:52:13,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [351717694] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 03:52:13,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 03:52:13,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 03:52:13,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702680684] [2022-07-23 03:52:13,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:52:13,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 03:52:13,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:52:13,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 03:52:13,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:52:13,598 INFO L87 Difference]: Start difference. First operand has 3088 states, 1764 states have (on average 1.251700680272109) internal successors, (2208), 1802 states have internal predecessors, (2208), 1209 states have call successors, (1209), 113 states have call predecessors, (1209), 112 states have return successors, (1201), 1184 states have call predecessors, (1201), 1201 states have call successors, (1201) Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-07-23 03:52:14,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:52:14,714 INFO L93 Difference]: Finished difference Result 9016 states and 13606 transitions. [2022-07-23 03:52:14,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 03:52:14,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 424 [2022-07-23 03:52:14,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:52:14,812 INFO L225 Difference]: With dead ends: 9016 [2022-07-23 03:52:14,812 INFO L226 Difference]: Without dead ends: 5991 [2022-07-23 03:52:14,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 422 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:52:14,859 INFO L413 NwaCegarLoop]: 5753 mSDtfsCounter, 4395 mSDsluCounter, 4554 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4395 SdHoareTripleChecker+Valid, 10307 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-23 03:52:14,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4395 Valid, 10307 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-23 03:52:14,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5991 states. [2022-07-23 03:52:15,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5991 to 5987. [2022-07-23 03:52:15,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5987 states, 3430 states have (on average 1.2486880466472303) internal successors, (4283), 3501 states have internal predecessors, (4283), 2334 states have call successors, (2334), 221 states have call predecessors, (2334), 220 states have return successors, (2330), 2296 states have call predecessors, (2330), 2330 states have call successors, (2330) [2022-07-23 03:52:15,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5987 states to 5987 states and 8947 transitions. [2022-07-23 03:52:15,387 INFO L78 Accepts]: Start accepts. Automaton has 5987 states and 8947 transitions. Word has length 424 [2022-07-23 03:52:15,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:52:15,391 INFO L495 AbstractCegarLoop]: Abstraction has 5987 states and 8947 transitions. [2022-07-23 03:52:15,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-07-23 03:52:15,392 INFO L276 IsEmpty]: Start isEmpty. Operand 5987 states and 8947 transitions. [2022-07-23 03:52:15,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2022-07-23 03:52:15,400 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:52:15,400 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 03:52:15,511 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-23 03:52:15,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:52:15,602 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 03:52:15,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:52:15,602 INFO L85 PathProgramCache]: Analyzing trace with hash -548436740, now seen corresponding path program 1 times [2022-07-23 03:52:15,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:52:15,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [271568976] [2022-07-23 03:52:15,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:52:15,608 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:52:15,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:52:15,632 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 03:52:15,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-23 03:52:22,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:52:23,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 3775 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 03:52:23,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:52:23,502 INFO L134 CoverageAnalysis]: Checked inductivity of 5778 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 5670 trivial. 0 not checked. [2022-07-23 03:52:23,502 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 03:52:23,502 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:52:23,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [271568976] [2022-07-23 03:52:23,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [271568976] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 03:52:23,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 03:52:23,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 03:52:23,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623588333] [2022-07-23 03:52:23,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:52:23,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 03:52:23,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:52:23,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 03:52:23,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:52:23,508 INFO L87 Difference]: Start difference. First operand 5987 states and 8947 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-07-23 03:52:24,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:52:24,339 INFO L93 Difference]: Finished difference Result 17497 states and 26217 transitions. [2022-07-23 03:52:24,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 03:52:24,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 425 [2022-07-23 03:52:24,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:52:24,439 INFO L225 Difference]: With dead ends: 17497 [2022-07-23 03:52:24,439 INFO L226 Difference]: Without dead ends: 11587 [2022-07-23 03:52:24,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 423 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:52:24,489 INFO L413 NwaCegarLoop]: 5775 mSDtfsCounter, 4263 mSDsluCounter, 4561 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4263 SdHoareTripleChecker+Valid, 10336 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-23 03:52:24,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4263 Valid, 10336 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-23 03:52:24,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11587 states. [2022-07-23 03:52:25,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11587 to 11558. [2022-07-23 03:52:25,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11558 states, 6579 states have (on average 1.2479100167198662) internal successors, (8210), 6715 states have internal predecessors, (8210), 4543 states have call successors, (4543), 436 states have call predecessors, (4543), 433 states have return successors, (4585), 4462 states have call predecessors, (4585), 4539 states have call successors, (4585) [2022-07-23 03:52:25,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11558 states to 11558 states and 17338 transitions. [2022-07-23 03:52:25,277 INFO L78 Accepts]: Start accepts. Automaton has 11558 states and 17338 transitions. Word has length 425 [2022-07-23 03:52:25,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:52:25,279 INFO L495 AbstractCegarLoop]: Abstraction has 11558 states and 17338 transitions. [2022-07-23 03:52:25,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-07-23 03:52:25,280 INFO L276 IsEmpty]: Start isEmpty. Operand 11558 states and 17338 transitions. [2022-07-23 03:52:25,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2022-07-23 03:52:25,292 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:52:25,293 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 03:52:25,391 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-23 03:52:25,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:52:25,507 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 03:52:25,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:52:25,509 INFO L85 PathProgramCache]: Analyzing trace with hash -2102311554, now seen corresponding path program 1 times [2022-07-23 03:52:25,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:52:25,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1407159487] [2022-07-23 03:52:25,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:52:25,513 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:52:25,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:52:25,524 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 03:52:25,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-23 03:52:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:52:32,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 3876 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 03:52:32,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:52:32,771 INFO L134 CoverageAnalysis]: Checked inductivity of 6154 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 6015 trivial. 0 not checked. [2022-07-23 03:52:32,771 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 03:52:32,771 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:52:32,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1407159487] [2022-07-23 03:52:32,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1407159487] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 03:52:32,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 03:52:32,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 03:52:32,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817030695] [2022-07-23 03:52:32,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:52:32,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 03:52:32,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:52:32,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 03:52:32,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:52:32,773 INFO L87 Difference]: Start difference. First operand 11558 states and 17338 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-07-23 03:52:34,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:52:34,148 INFO L93 Difference]: Finished difference Result 23065 states and 34593 transitions. [2022-07-23 03:52:34,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 03:52:34,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 480 [2022-07-23 03:52:34,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:52:34,366 INFO L225 Difference]: With dead ends: 23065 [2022-07-23 03:52:34,366 INFO L226 Difference]: Without dead ends: 17235 [2022-07-23 03:52:34,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 478 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:52:34,435 INFO L413 NwaCegarLoop]: 8941 mSDtfsCounter, 4355 mSDsluCounter, 4559 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4355 SdHoareTripleChecker+Valid, 13500 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-23 03:52:34,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4355 Valid, 13500 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-23 03:52:34,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17235 states. [2022-07-23 03:52:35,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17235 to 17231. [2022-07-23 03:52:35,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17231 states, 9808 states have (on average 1.2483686786296901) internal successors, (12244), 10008 states have internal predecessors, (12244), 6772 states have call successors, (6772), 652 states have call predecessors, (6772), 648 states have return successors, (6837), 6654 states have call predecessors, (6837), 6768 states have call successors, (6837) [2022-07-23 03:52:35,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17231 states to 17231 states and 25853 transitions. [2022-07-23 03:52:35,833 INFO L78 Accepts]: Start accepts. Automaton has 17231 states and 25853 transitions. Word has length 480 [2022-07-23 03:52:35,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:52:35,834 INFO L495 AbstractCegarLoop]: Abstraction has 17231 states and 25853 transitions. [2022-07-23 03:52:35,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-07-23 03:52:35,835 INFO L276 IsEmpty]: Start isEmpty. Operand 17231 states and 25853 transitions. [2022-07-23 03:52:35,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2022-07-23 03:52:35,848 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:52:35,849 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 03:52:36,012 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-23 03:52:36,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:52:36,080 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 03:52:36,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:52:36,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1961762944, now seen corresponding path program 1 times [2022-07-23 03:52:36,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:52:36,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1607238597] [2022-07-23 03:52:36,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:52:36,086 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:52:36,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:52:36,088 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 03:52:36,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-23 03:52:44,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:52:44,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 3876 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 03:52:44,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:52:56,539 INFO L134 CoverageAnalysis]: Checked inductivity of 6154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6154 trivial. 0 not checked. [2022-07-23 03:52:56,540 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 03:52:56,540 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:52:56,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1607238597] [2022-07-23 03:52:56,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1607238597] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 03:52:56,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 03:52:56,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 03:52:56,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032485721] [2022-07-23 03:52:56,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:52:56,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 03:52:56,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:52:56,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 03:52:56,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 03:52:56,541 INFO L87 Difference]: Start difference. First operand 17231 states and 25853 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) [2022-07-23 03:52:57,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:52:57,570 INFO L93 Difference]: Finished difference Result 17237 states and 25858 transitions. [2022-07-23 03:52:57,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 03:52:57,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) Word has length 480 [2022-07-23 03:52:57,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:52:57,673 INFO L225 Difference]: With dead ends: 17237 [2022-07-23 03:52:57,674 INFO L226 Difference]: Without dead ends: 17235 [2022-07-23 03:52:57,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 481 GetRequests, 476 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-23 03:52:57,693 INFO L413 NwaCegarLoop]: 4583 mSDtfsCounter, 4424 mSDsluCounter, 9154 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4425 SdHoareTripleChecker+Valid, 13737 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 03:52:57,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4425 Valid, 13737 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 03:52:57,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17235 states. [2022-07-23 03:52:58,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17235 to 17235. [2022-07-23 03:52:58,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17235 states, 9811 states have (on average 1.2482927326470288) internal successors, (12247), 10011 states have internal predecessors, (12247), 6772 states have call successors, (6772), 653 states have call predecessors, (6772), 649 states have return successors, (6837), 6654 states have call predecessors, (6837), 6768 states have call successors, (6837) [2022-07-23 03:52:58,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17235 states to 17235 states and 25856 transitions. [2022-07-23 03:52:58,724 INFO L78 Accepts]: Start accepts. Automaton has 17235 states and 25856 transitions. Word has length 480 [2022-07-23 03:52:58,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:52:58,725 INFO L495 AbstractCegarLoop]: Abstraction has 17235 states and 25856 transitions. [2022-07-23 03:52:58,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 3 states have internal predecessors, (81), 1 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) [2022-07-23 03:52:58,726 INFO L276 IsEmpty]: Start isEmpty. Operand 17235 states and 25856 transitions. [2022-07-23 03:52:58,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2022-07-23 03:52:58,738 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:52:58,738 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 03:52:58,850 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-23 03:52:58,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:52:58,952 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 03:52:58,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:52:58,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1948428257, now seen corresponding path program 1 times [2022-07-23 03:52:58,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:52:58,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1046812708] [2022-07-23 03:52:58,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:52:58,958 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:52:58,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:52:58,959 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 03:52:58,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-23 03:53:06,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:53:06,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 3883 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 03:53:06,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:53:18,568 INFO L134 CoverageAnalysis]: Checked inductivity of 6156 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6154 trivial. 0 not checked. [2022-07-23 03:53:18,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 03:53:22,000 INFO L134 CoverageAnalysis]: Checked inductivity of 6156 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6154 trivial. 0 not checked. [2022-07-23 03:53:22,001 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:53:22,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1046812708] [2022-07-23 03:53:22,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1046812708] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 03:53:22,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 03:53:22,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 03:53:22,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213289599] [2022-07-23 03:53:22,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:53:22,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 03:53:22,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:53:22,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 03:53:22,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 03:53:22,002 INFO L87 Difference]: Start difference. First operand 17235 states and 25856 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-07-23 03:53:23,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:53:23,049 INFO L93 Difference]: Finished difference Result 17241 states and 25861 transitions. [2022-07-23 03:53:23,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 03:53:23,050 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 485 [2022-07-23 03:53:23,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:53:23,166 INFO L225 Difference]: With dead ends: 17241 [2022-07-23 03:53:23,166 INFO L226 Difference]: Without dead ends: 17239 [2022-07-23 03:53:23,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 971 GetRequests, 963 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 03:53:23,186 INFO L413 NwaCegarLoop]: 4586 mSDtfsCounter, 4469 mSDsluCounter, 9153 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4479 SdHoareTripleChecker+Valid, 13739 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 03:53:23,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4479 Valid, 13739 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 03:53:23,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17239 states. [2022-07-23 03:53:24,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17239 to 17239. [2022-07-23 03:53:24,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17239 states, 9814 states have (on average 1.2482168330955778) internal successors, (12250), 10014 states have internal predecessors, (12250), 6772 states have call successors, (6772), 654 states have call predecessors, (6772), 650 states have return successors, (6837), 6654 states have call predecessors, (6837), 6768 states have call successors, (6837) [2022-07-23 03:53:24,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17239 states to 17239 states and 25859 transitions. [2022-07-23 03:53:24,400 INFO L78 Accepts]: Start accepts. Automaton has 17239 states and 25859 transitions. Word has length 485 [2022-07-23 03:53:24,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:53:24,401 INFO L495 AbstractCegarLoop]: Abstraction has 17239 states and 25859 transitions. [2022-07-23 03:53:24,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-07-23 03:53:24,402 INFO L276 IsEmpty]: Start isEmpty. Operand 17239 states and 25859 transitions. [2022-07-23 03:53:24,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 491 [2022-07-23 03:53:24,418 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:53:24,418 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 03:53:24,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-23 03:53:24,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:53:24,644 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 03:53:24,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:53:24,645 INFO L85 PathProgramCache]: Analyzing trace with hash 653034144, now seen corresponding path program 1 times [2022-07-23 03:53:24,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:53:24,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2142753983] [2022-07-23 03:53:24,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:53:24,650 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:53:24,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:53:24,658 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 03:53:24,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-23 03:53:31,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:53:31,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 3890 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 03:53:31,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:53:43,643 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6158 trivial. 0 not checked. [2022-07-23 03:53:43,643 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 03:53:47,098 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6158 trivial. 0 not checked. [2022-07-23 03:53:47,099 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:53:47,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2142753983] [2022-07-23 03:53:47,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2142753983] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 03:53:47,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 03:53:47,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 03:53:47,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263915828] [2022-07-23 03:53:47,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:53:47,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 03:53:47,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:53:47,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 03:53:47,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 03:53:47,101 INFO L87 Difference]: Start difference. First operand 17239 states and 25859 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-07-23 03:53:48,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:53:48,374 INFO L93 Difference]: Finished difference Result 17245 states and 25864 transitions. [2022-07-23 03:53:48,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 03:53:48,374 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 490 [2022-07-23 03:53:48,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:53:48,483 INFO L225 Difference]: With dead ends: 17245 [2022-07-23 03:53:48,483 INFO L226 Difference]: Without dead ends: 17243 [2022-07-23 03:53:48,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 981 GetRequests, 973 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 03:53:48,505 INFO L413 NwaCegarLoop]: 4586 mSDtfsCounter, 4469 mSDsluCounter, 9153 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4478 SdHoareTripleChecker+Valid, 13739 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 03:53:48,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4478 Valid, 13739 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 03:53:48,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17243 states. [2022-07-23 03:53:49,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17243 to 17243. [2022-07-23 03:53:49,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17243 states, 9817 states have (on average 1.2481409799327696) internal successors, (12253), 10017 states have internal predecessors, (12253), 6772 states have call successors, (6772), 655 states have call predecessors, (6772), 651 states have return successors, (6837), 6654 states have call predecessors, (6837), 6768 states have call successors, (6837) [2022-07-23 03:53:49,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17243 states to 17243 states and 25862 transitions. [2022-07-23 03:53:49,612 INFO L78 Accepts]: Start accepts. Automaton has 17243 states and 25862 transitions. Word has length 490 [2022-07-23 03:53:49,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:53:49,613 INFO L495 AbstractCegarLoop]: Abstraction has 17243 states and 25862 transitions. [2022-07-23 03:53:49,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-07-23 03:53:49,613 INFO L276 IsEmpty]: Start isEmpty. Operand 17243 states and 25862 transitions. [2022-07-23 03:53:49,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2022-07-23 03:53:49,630 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:53:49,630 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 03:53:49,761 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-23 03:53:49,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:53:49,856 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 03:53:49,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:53:49,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1281902907, now seen corresponding path program 1 times [2022-07-23 03:53:49,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:53:49,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1248315183] [2022-07-23 03:53:49,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:53:49,864 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:53:49,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:53:49,866 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 03:53:49,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-23 03:53:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:53:57,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 3944 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 03:53:57,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:53:57,423 INFO L134 CoverageAnalysis]: Checked inductivity of 6183 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 6037 trivial. 0 not checked. [2022-07-23 03:53:57,423 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 03:53:57,423 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:53:57,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1248315183] [2022-07-23 03:53:57,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1248315183] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 03:53:57,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 03:53:57,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 03:53:57,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677711284] [2022-07-23 03:53:57,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:53:57,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 03:53:57,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:53:57,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 03:53:57,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:53:57,425 INFO L87 Difference]: Start difference. First operand 17243 states and 25862 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2022-07-23 03:53:58,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:53:58,748 INFO L93 Difference]: Finished difference Result 34467 states and 51682 transitions. [2022-07-23 03:53:58,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 03:53:58,749 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) Word has length 506 [2022-07-23 03:53:58,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:53:58,861 INFO L225 Difference]: With dead ends: 34467 [2022-07-23 03:53:58,861 INFO L226 Difference]: Without dead ends: 22952 [2022-07-23 03:53:58,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 505 GetRequests, 504 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 03:53:58,915 INFO L413 NwaCegarLoop]: 8953 mSDtfsCounter, 4386 mSDsluCounter, 4561 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4386 SdHoareTripleChecker+Valid, 13514 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-23 03:53:58,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4386 Valid, 13514 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-23 03:53:58,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22952 states. [2022-07-23 03:53:59,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22952 to 22918. [2022-07-23 03:54:00,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22918 states, 13048 states have (on average 1.2483905579399142) internal successors, (16289), 13312 states have internal predecessors, (16289), 9001 states have call successors, (9001), 871 states have call predecessors, (9001), 866 states have return successors, (9089), 8846 states have call predecessors, (9089), 8997 states have call successors, (9089) [2022-07-23 03:54:00,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22918 states to 22918 states and 34379 transitions. [2022-07-23 03:54:00,304 INFO L78 Accepts]: Start accepts. Automaton has 22918 states and 34379 transitions. Word has length 506 [2022-07-23 03:54:00,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:54:00,305 INFO L495 AbstractCegarLoop]: Abstraction has 22918 states and 34379 transitions. [2022-07-23 03:54:00,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (53), 3 states have call predecessors, (53), 3 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2022-07-23 03:54:00,306 INFO L276 IsEmpty]: Start isEmpty. Operand 22918 states and 34379 transitions. [2022-07-23 03:54:00,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2022-07-23 03:54:00,322 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:54:00,322 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 03:54:00,433 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-23 03:54:00,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:54:00,536 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 03:54:00,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:54:00,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1526343553, now seen corresponding path program 1 times [2022-07-23 03:54:00,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:54:00,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1528674640] [2022-07-23 03:54:00,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:54:00,541 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:54:00,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:54:00,552 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 03:54:00,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-23 03:54:07,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:54:07,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 3897 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 03:54:07,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:54:19,270 INFO L134 CoverageAnalysis]: Checked inductivity of 6172 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6166 trivial. 0 not checked. [2022-07-23 03:54:19,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 03:54:22,319 INFO L134 CoverageAnalysis]: Checked inductivity of 6172 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6166 trivial. 0 not checked. [2022-07-23 03:54:22,320 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:54:22,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1528674640] [2022-07-23 03:54:22,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1528674640] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 03:54:22,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 03:54:22,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 03:54:22,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033021237] [2022-07-23 03:54:22,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:54:22,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 03:54:22,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:54:22,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 03:54:22,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 03:54:22,321 INFO L87 Difference]: Start difference. First operand 22918 states and 34379 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2022-07-23 03:54:23,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:54:23,456 INFO L93 Difference]: Finished difference Result 22924 states and 34384 transitions. [2022-07-23 03:54:23,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 03:54:23,461 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 495 [2022-07-23 03:54:23,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:54:23,580 INFO L225 Difference]: With dead ends: 22924 [2022-07-23 03:54:23,581 INFO L226 Difference]: Without dead ends: 22922 [2022-07-23 03:54:23,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 991 GetRequests, 983 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 03:54:23,601 INFO L413 NwaCegarLoop]: 4586 mSDtfsCounter, 4469 mSDsluCounter, 9153 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4477 SdHoareTripleChecker+Valid, 13739 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 03:54:23,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4477 Valid, 13739 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 03:54:23,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22922 states. [2022-07-23 03:54:24,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22922 to 22922. [2022-07-23 03:54:24,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22922 states, 13051 states have (on average 1.2483334610374683) internal successors, (16292), 13315 states have internal predecessors, (16292), 9001 states have call successors, (9001), 872 states have call predecessors, (9001), 867 states have return successors, (9089), 8846 states have call predecessors, (9089), 8997 states have call successors, (9089) [2022-07-23 03:54:24,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22922 states to 22922 states and 34382 transitions. [2022-07-23 03:54:24,954 INFO L78 Accepts]: Start accepts. Automaton has 22922 states and 34382 transitions. Word has length 495 [2022-07-23 03:54:24,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:54:24,955 INFO L495 AbstractCegarLoop]: Abstraction has 22922 states and 34382 transitions. [2022-07-23 03:54:24,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2022-07-23 03:54:24,956 INFO L276 IsEmpty]: Start isEmpty. Operand 22922 states and 34382 transitions. [2022-07-23 03:54:24,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2022-07-23 03:54:24,975 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:54:24,975 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 03:54:25,097 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-23 03:54:25,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:54:25,200 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 03:54:25,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:54:25,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1759547968, now seen corresponding path program 1 times [2022-07-23 03:54:25,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:54:25,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1466298843] [2022-07-23 03:54:25,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:54:25,204 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:54:25,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:54:25,212 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 03:54:25,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-23 03:54:32,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:54:33,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 3904 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 03:54:33,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:54:43,380 INFO L134 CoverageAnalysis]: Checked inductivity of 6186 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6178 trivial. 0 not checked. [2022-07-23 03:54:43,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 03:54:46,302 INFO L134 CoverageAnalysis]: Checked inductivity of 6186 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6178 trivial. 0 not checked. [2022-07-23 03:54:46,303 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:54:46,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1466298843] [2022-07-23 03:54:46,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1466298843] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 03:54:46,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 03:54:46,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 03:54:46,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494237100] [2022-07-23 03:54:46,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:54:46,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 03:54:46,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:54:46,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 03:54:46,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 03:54:46,305 INFO L87 Difference]: Start difference. First operand 22922 states and 34382 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-07-23 03:54:47,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:54:47,655 INFO L93 Difference]: Finished difference Result 22928 states and 34387 transitions. [2022-07-23 03:54:47,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 03:54:47,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 500 [2022-07-23 03:54:47,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:54:47,813 INFO L225 Difference]: With dead ends: 22928 [2022-07-23 03:54:47,813 INFO L226 Difference]: Without dead ends: 22926 [2022-07-23 03:54:47,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1001 GetRequests, 993 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 03:54:47,834 INFO L413 NwaCegarLoop]: 4586 mSDtfsCounter, 4469 mSDsluCounter, 9153 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4476 SdHoareTripleChecker+Valid, 13739 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 03:54:47,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4476 Valid, 13739 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 03:54:47,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22926 states. [2022-07-23 03:54:49,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22926 to 22926. [2022-07-23 03:54:49,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22926 states, 13054 states have (on average 1.248276390378428) internal successors, (16295), 13318 states have internal predecessors, (16295), 9001 states have call successors, (9001), 873 states have call predecessors, (9001), 868 states have return successors, (9089), 8846 states have call predecessors, (9089), 8997 states have call successors, (9089) [2022-07-23 03:54:49,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22926 states to 22926 states and 34385 transitions. [2022-07-23 03:54:49,298 INFO L78 Accepts]: Start accepts. Automaton has 22926 states and 34385 transitions. Word has length 500 [2022-07-23 03:54:49,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:54:49,298 INFO L495 AbstractCegarLoop]: Abstraction has 22926 states and 34385 transitions. [2022-07-23 03:54:49,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-07-23 03:54:49,299 INFO L276 IsEmpty]: Start isEmpty. Operand 22926 states and 34385 transitions. [2022-07-23 03:54:49,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2022-07-23 03:54:49,315 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:54:49,315 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 03:54:49,417 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-07-23 03:54:49,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:54:49,532 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 03:54:49,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:54:49,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1111289633, now seen corresponding path program 1 times [2022-07-23 03:54:49,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:54:49,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2059380150] [2022-07-23 03:54:49,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:54:49,535 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:54:49,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:54:49,536 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 03:54:49,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-23 03:54:56,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:54:56,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 3911 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 03:54:56,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 03:55:06,910 INFO L134 CoverageAnalysis]: Checked inductivity of 6204 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6194 trivial. 0 not checked. [2022-07-23 03:55:06,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 03:55:09,861 INFO L134 CoverageAnalysis]: Checked inductivity of 6204 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6194 trivial. 0 not checked. [2022-07-23 03:55:09,862 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-23 03:55:09,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2059380150] [2022-07-23 03:55:09,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2059380150] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 03:55:09,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 03:55:09,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-23 03:55:09,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152047086] [2022-07-23 03:55:09,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 03:55:09,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 03:55:09,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-23 03:55:09,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 03:55:09,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 03:55:09,863 INFO L87 Difference]: Start difference. First operand 22926 states and 34385 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-07-23 03:55:11,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 03:55:11,074 INFO L93 Difference]: Finished difference Result 22932 states and 34390 transitions. [2022-07-23 03:55:11,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 03:55:11,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 505 [2022-07-23 03:55:11,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 03:55:11,203 INFO L225 Difference]: With dead ends: 22932 [2022-07-23 03:55:11,203 INFO L226 Difference]: Without dead ends: 22930 [2022-07-23 03:55:11,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1011 GetRequests, 1003 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 03:55:11,225 INFO L413 NwaCegarLoop]: 4586 mSDtfsCounter, 4469 mSDsluCounter, 9153 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4475 SdHoareTripleChecker+Valid, 13739 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 03:55:11,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4475 Valid, 13739 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 03:55:11,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22930 states. [2022-07-23 03:55:12,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22930 to 22930. [2022-07-23 03:55:12,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22930 states, 13057 states have (on average 1.248219345944704) internal successors, (16298), 13321 states have internal predecessors, (16298), 9001 states have call successors, (9001), 874 states have call predecessors, (9001), 869 states have return successors, (9089), 8846 states have call predecessors, (9089), 8997 states have call successors, (9089) [2022-07-23 03:55:12,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22930 states to 22930 states and 34388 transitions. [2022-07-23 03:55:12,714 INFO L78 Accepts]: Start accepts. Automaton has 22930 states and 34388 transitions. Word has length 505 [2022-07-23 03:55:12,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 03:55:12,715 INFO L495 AbstractCegarLoop]: Abstraction has 22930 states and 34388 transitions. [2022-07-23 03:55:12,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-07-23 03:55:12,715 INFO L276 IsEmpty]: Start isEmpty. Operand 22930 states and 34388 transitions. [2022-07-23 03:55:12,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2022-07-23 03:55:12,778 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 03:55:12,779 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 03:55:12,950 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-23 03:55:12,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-23 03:55:12,980 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-23 03:55:12,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 03:55:12,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1611620128, now seen corresponding path program 1 times [2022-07-23 03:55:12,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-23 03:55:12,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [943475614] [2022-07-23 03:55:12,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 03:55:12,983 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-23 03:55:12,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-23 03:55:12,985 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-23 03:55:12,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-23 03:55:19,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 03:55:19,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 3918 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 03:55:19,832 INFO L286 TraceCheckSpWp]: Computing forward predicates...