./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.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 5663310b82fa3e5d48c5bcacd13ac8ac886029c41a2f8f3bd2b8442c496a9447 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 02:21:17,410 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 02:21:17,414 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 02:21:17,460 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 02:21:17,461 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 02:21:17,462 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 02:21:17,464 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 02:21:17,466 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 02:21:17,468 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 02:21:17,472 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 02:21:17,473 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 02:21:17,475 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 02:21:17,476 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 02:21:17,477 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 02:21:17,478 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 02:21:17,481 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 02:21:17,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 02:21:17,484 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 02:21:17,485 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 02:21:17,490 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 02:21:17,492 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 02:21:17,493 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 02:21:17,493 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 02:21:17,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 02:21:17,496 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 02:21:17,502 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 02:21:17,503 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 02:21:17,503 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 02:21:17,504 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 02:21:17,505 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 02:21:17,506 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 02:21:17,506 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 02:21:17,508 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 02:21:17,508 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 02:21:17,509 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 02:21:17,510 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 02:21:17,511 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 02:21:17,511 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 02:21:17,511 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 02:21:17,512 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 02:21:17,512 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 02:21:17,514 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 02:21:17,515 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-20 02:21:17,544 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 02:21:17,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 02:21:17,545 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 02:21:17,545 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 02:21:17,546 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 02:21:17,546 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 02:21:17,546 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 02:21:17,547 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 02:21:17,547 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 02:21:17,548 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 02:21:17,548 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 02:21:17,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 02:21:17,549 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 02:21:17,549 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 02:21:17,549 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 02:21:17,549 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 02:21:17,550 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 02:21:17,550 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 02:21:17,550 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 02:21:17,550 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 02:21:17,550 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 02:21:17,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 02:21:17,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 02:21:17,551 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 02:21:17,551 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 02:21:17,552 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 02:21:17,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 02:21:17,552 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 02:21:17,552 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 02:21:17,552 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 02:21:17,553 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5663310b82fa3e5d48c5bcacd13ac8ac886029c41a2f8f3bd2b8442c496a9447 [2022-07-20 02:21:17,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 02:21:17,835 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 02:21:17,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 02:21:17,839 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 02:21:17,839 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 02:21:17,840 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i [2022-07-20 02:21:17,910 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4abdcfc69/24e16538a8fd41158d723cbdfce68d58/FLAG84448e840 [2022-07-20 02:21:18,774 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 02:21:18,775 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i [2022-07-20 02:21:18,830 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4abdcfc69/24e16538a8fd41158d723cbdfce68d58/FLAG84448e840 [2022-07-20 02:21:19,259 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4abdcfc69/24e16538a8fd41158d723cbdfce68d58 [2022-07-20 02:21:19,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 02:21:19,262 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 02:21:19,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 02:21:19,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 02:21:19,272 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 02:21:19,273 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:21:19" (1/1) ... [2022-07-20 02:21:19,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@651cf821 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:21:19, skipping insertion in model container [2022-07-20 02:21:19,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:21:19" (1/1) ... [2022-07-20 02:21:19,279 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 02:21:19,452 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 02:21:24,743 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[408897,408910] [2022-07-20 02:21:24,746 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409066,409079] [2022-07-20 02:21:24,748 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409233,409246] [2022-07-20 02:21:24,748 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409401,409414] [2022-07-20 02:21:24,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 02:21:24,816 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 02:21:25,034 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: reg = (unsigned int )((u16 )((int )reg >> 8)) & 3U [7799] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-20 02:21:25,042 INFO L158 Benchmark]: Toolchain (without parser) took 5777.07ms. Allocated memory was 98.6MB in the beginning and 178.3MB in the end (delta: 79.7MB). Free memory was 64.6MB in the beginning and 112.0MB in the end (delta: -47.4MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. [2022-07-20 02:21:25,043 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 81.8MB. Free memory was 51.0MB in the beginning and 51.0MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 02:21:25,045 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5772.69ms. Allocated memory was 98.6MB in the beginning and 178.3MB in the end (delta: 79.7MB). Free memory was 64.2MB in the beginning and 112.0MB in the end (delta: -47.8MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. [2022-07-20 02:21:25,047 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 81.8MB. Free memory was 51.0MB in the beginning and 51.0MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5772.69ms. Allocated memory was 98.6MB in the beginning and 178.3MB in the end (delta: 79.7MB). Free memory was 64.2MB in the beginning and 112.0MB in the end (delta: -47.8MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: reg = (unsigned int )((u16 )((int )reg >> 8)) & 3U [7799] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: reg = (unsigned int )((u16 )((int )reg >> 8)) & 3U [7799]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.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 5663310b82fa3e5d48c5bcacd13ac8ac886029c41a2f8f3bd2b8442c496a9447 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 02:21:27,107 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 02:21:27,110 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 02:21:27,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 02:21:27,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 02:21:27,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 02:21:27,154 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 02:21:27,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 02:21:27,158 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 02:21:27,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 02:21:27,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 02:21:27,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 02:21:27,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 02:21:27,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 02:21:27,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 02:21:27,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 02:21:27,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 02:21:27,166 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 02:21:27,168 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 02:21:27,169 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 02:21:27,171 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 02:21:27,172 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 02:21:27,173 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 02:21:27,174 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 02:21:27,175 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 02:21:27,178 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 02:21:27,179 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 02:21:27,179 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 02:21:27,180 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 02:21:27,181 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 02:21:27,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 02:21:27,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 02:21:27,182 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 02:21:27,183 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 02:21:27,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 02:21:27,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 02:21:27,185 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 02:21:27,186 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 02:21:27,186 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 02:21:27,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 02:21:27,187 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 02:21:27,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 02:21:27,189 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-20 02:21:27,211 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 02:21:27,212 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 02:21:27,212 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 02:21:27,212 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 02:21:27,213 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 02:21:27,214 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 02:21:27,214 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 02:21:27,214 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 02:21:27,215 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 02:21:27,215 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 02:21:27,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 02:21:27,215 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 02:21:27,216 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 02:21:27,216 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 02:21:27,216 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-20 02:21:27,216 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-20 02:21:27,217 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-20 02:21:27,217 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 02:21:27,217 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 02:21:27,217 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 02:21:27,218 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 02:21:27,218 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 02:21:27,218 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 02:21:27,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 02:21:27,219 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 02:21:27,219 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 02:21:27,219 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 02:21:27,219 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-20 02:21:27,219 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-20 02:21:27,220 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 02:21:27,220 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 02:21:27,220 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 02:21:27,220 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-20 02:21:27,221 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5663310b82fa3e5d48c5bcacd13ac8ac886029c41a2f8f3bd2b8442c496a9447 [2022-07-20 02:21:27,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 02:21:27,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 02:21:27,615 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 02:21:27,616 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 02:21:27,617 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 02:21:27,619 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i [2022-07-20 02:21:27,696 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/052879c11/eb825ba7689e4579884e158704731baa/FLAG868f72e7e [2022-07-20 02:21:28,625 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 02:21:28,626 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i [2022-07-20 02:21:28,682 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/052879c11/eb825ba7689e4579884e158704731baa/FLAG868f72e7e [2022-07-20 02:21:29,117 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/052879c11/eb825ba7689e4579884e158704731baa [2022-07-20 02:21:29,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 02:21:29,120 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 02:21:29,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 02:21:29,123 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 02:21:29,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 02:21:29,126 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:21:29" (1/1) ... [2022-07-20 02:21:29,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@155407f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:21:29, skipping insertion in model container [2022-07-20 02:21:29,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:21:29" (1/1) ... [2022-07-20 02:21:29,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 02:21:29,292 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 02:21:32,156 WARN L570 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2022-07-20 02:21:32,205 WARN L570 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2022-07-20 02:21:33,342 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[408897,408910] [2022-07-20 02:21:33,346 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409066,409079] [2022-07-20 02:21:33,346 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409233,409246] [2022-07-20 02:21:33,347 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409401,409414] [2022-07-20 02:21:33,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 02:21:33,415 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-20 02:21:33,503 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 02:21:33,810 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[408897,408910] [2022-07-20 02:21:33,811 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409066,409079] [2022-07-20 02:21:33,811 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409233,409246] [2022-07-20 02:21:33,812 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409401,409414] [2022-07-20 02:21:33,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 02:21:33,843 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 02:21:34,239 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[408897,408910] [2022-07-20 02:21:34,241 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409066,409079] [2022-07-20 02:21:34,242 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409233,409246] [2022-07-20 02:21:34,242 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409401,409414] [2022-07-20 02:21:34,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 02:21:34,527 INFO L208 MainTranslator]: Completed translation [2022-07-20 02:21:34,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:21:34 WrapperNode [2022-07-20 02:21:34,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 02:21:34,530 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 02:21:34,530 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 02:21:34,531 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 02:21:34,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:21:34" (1/1) ... [2022-07-20 02:21:34,660 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:21:34" (1/1) ... [2022-07-20 02:21:34,850 INFO L137 Inliner]: procedures = 587, calls = 2923, calls flagged for inlining = 287, calls inlined = 255, statements flattened = 6318 [2022-07-20 02:21:34,851 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 02:21:34,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 02:21:34,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 02:21:34,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 02:21:34,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:21:34" (1/1) ... [2022-07-20 02:21:34,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:21:34" (1/1) ... [2022-07-20 02:21:34,888 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:21:34" (1/1) ... [2022-07-20 02:21:34,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:21:34" (1/1) ... [2022-07-20 02:21:35,073 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:21:34" (1/1) ... [2022-07-20 02:21:35,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:21:34" (1/1) ... [2022-07-20 02:21:35,143 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:21:34" (1/1) ... [2022-07-20 02:21:35,183 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 02:21:35,185 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 02:21:35,185 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 02:21:35,185 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 02:21:35,186 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:21:34" (1/1) ... [2022-07-20 02:21:35,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 02:21:35,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 02:21:35,221 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-20 02:21:35,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-20 02:21:35,268 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_link_speed [2022-07-20 02:21:35,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_link_speed [2022-07-20 02:21:35,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_hw_lock_of_ql3_adapter [2022-07-20 02:21:35,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_hw_lock_of_ql3_adapter [2022-07-20 02:21:35,269 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-20 02:21:35,269 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-20 02:21:35,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-20 02:21:35,269 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-20 02:21:35,269 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-20 02:21:35,269 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-20 02:21:35,270 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-07-20 02:21:35,270 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-07-20 02:21:35,270 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_close [2022-07-20 02:21:35,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_close [2022-07-20 02:21:35,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-20 02:21:35,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-20 02:21:35,271 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-20 02:21:35,271 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-20 02:21:35,271 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2022-07-20 02:21:35,272 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2022-07-20 02:21:35,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-20 02:21:35,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-20 02:21:35,272 INFO L130 BoogieDeclarations]: Found specification of procedure ql_this_adapter_controls_port [2022-07-20 02:21:35,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_this_adapter_controls_port [2022-07-20 02:21:35,272 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_interrupts [2022-07-20 02:21:35,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_interrupts [2022-07-20 02:21:35,273 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-20 02:21:35,273 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-20 02:21:35,273 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-20 02:21:35,273 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-20 02:21:35,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2022-07-20 02:21:35,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2022-07-20 02:21:35,274 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_common_reg_l [2022-07-20 02:21:35,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_common_reg_l [2022-07-20 02:21:35,274 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_send_free_list [2022-07-20 02:21:35,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_send_free_list [2022-07-20 02:21:35,275 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-20 02:21:35,275 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-20 02:21:35,276 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-20 02:21:35,276 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-20 02:21:35,276 INFO L130 BoogieDeclarations]: Found specification of procedure ssleep [2022-07-20 02:21:35,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ssleep [2022-07-20 02:21:35,277 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-07-20 02:21:35,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-07-20 02:21:35,277 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cycle_adapter [2022-07-20 02:21:35,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cycle_adapter [2022-07-20 02:21:35,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-20 02:21:35,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-20 02:21:35,278 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mac_cfg_soft_reset [2022-07-20 02:21:35,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mac_cfg_soft_reset [2022-07-20 02:21:35,279 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-20 02:21:35,279 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-20 02:21:35,279 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-20 02:21:35,279 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-20 02:21:35,279 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_disable_scan_mode [2022-07-20 02:21:35,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_disable_scan_mode [2022-07-20 02:21:35,279 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-20 02:21:35,280 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-20 02:21:35,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-20 02:21:35,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-20 02:21:35,281 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-20 02:21:35,281 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-20 02:21:35,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 02:21:35,281 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-20 02:21:35,281 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-20 02:21:35,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-20 02:21:35,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-20 02:21:35,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-20 02:21:35,282 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_page0_reg_l [2022-07-20 02:21:35,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_page0_reg_l [2022-07-20 02:21:35,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-20 02:21:35,282 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2022-07-20 02:21:35,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2022-07-20 02:21:35,283 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-20 02:21:35,283 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-20 02:21:35,283 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-07-20 02:21:35,284 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-07-20 02:21:35,284 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-20 02:21:35,284 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-20 02:21:35,285 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-20 02:21:35,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-20 02:21:35,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-20 02:21:35,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-20 02:21:35,285 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page1_reg [2022-07-20 02:21:35,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page1_reg [2022-07-20 02:21:35,285 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-20 02:21:35,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-07-20 02:21:35,286 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-20 02:21:35,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-20 02:21:35,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-20 02:21:35,286 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-20 02:21:35,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-20 02:21:35,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-20 02:21:35,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-20 02:21:35,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-20 02:21:35,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-20 02:21:35,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-20 02:21:35,288 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-07-20 02:21:35,289 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-07-20 02:21:35,289 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-20 02:21:35,290 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-20 02:21:35,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_hw_lock_of_ql3_adapter [2022-07-20 02:21:35,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_hw_lock_of_ql3_adapter [2022-07-20 02:21:35,292 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_register_page [2022-07-20 02:21:35,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_register_page [2022-07-20 02:21:35,293 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-20 02:21:35,293 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-20 02:21:35,293 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_read_reg_ex [2022-07-20 02:21:35,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_read_reg_ex [2022-07-20 02:21:35,294 INFO L130 BoogieDeclarations]: Found specification of procedure ql_phy_init_ex [2022-07-20 02:21:35,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_phy_init_ex [2022-07-20 02:21:35,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-20 02:21:35,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-20 02:21:35,298 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_common_reg_l [2022-07-20 02:21:35,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_common_reg_l [2022-07-20 02:21:35,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 02:21:35,299 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_common_reg [2022-07-20 02:21:35,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_common_reg [2022-07-20 02:21:35,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-20 02:21:35,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-20 02:21:35,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-20 02:21:35,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-20 02:21:35,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-07-20 02:21:35,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-07-20 02:21:35,301 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2022-07-20 02:21:35,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2022-07-20 02:21:35,301 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page2_reg [2022-07-20 02:21:35,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page2_reg [2022-07-20 02:21:35,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 02:21:35,302 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_common_reg [2022-07-20 02:21:35,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_common_reg [2022-07-20 02:21:35,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-20 02:21:35,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-20 02:21:35,302 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-20 02:21:35,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-20 02:21:35,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 02:21:35,303 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_read_reg [2022-07-20 02:21:35,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_read_reg [2022-07-20 02:21:35,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-20 02:21:35,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-20 02:21:35,303 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-20 02:21:35,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-20 02:21:35,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-20 02:21:35,304 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2022-07-20 02:21:35,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2022-07-20 02:21:35,304 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-20 02:21:35,304 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-20 02:21:35,304 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_nvram_reg [2022-07-20 02:21:35,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_nvram_reg [2022-07-20 02:21:35,304 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-07-20 02:21:35,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-07-20 02:21:35,305 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-20 02:21:35,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-20 02:21:35,305 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-20 02:21:35,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-20 02:21:35,305 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-07-20 02:21:35,305 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-07-20 02:21:35,306 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-20 02:21:35,306 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-20 02:21:35,306 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_for_drvr_lock [2022-07-20 02:21:35,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_for_drvr_lock [2022-07-20 02:21:35,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-20 02:21:35,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-20 02:21:35,306 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-07-20 02:21:35,307 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-07-20 02:21:35,307 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_enable_scan_mode [2022-07-20 02:21:35,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_enable_scan_mode [2022-07-20 02:21:35,308 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-07-20 02:21:35,308 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-07-20 02:21:35,308 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-20 02:21:35,308 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-20 02:21:35,308 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-20 02:21:35,308 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-20 02:21:35,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-20 02:21:35,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 02:21:35,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 02:21:35,311 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_for_mii_ready [2022-07-20 02:21:35,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_for_mii_ready [2022-07-20 02:21:35,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-20 02:21:35,315 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-20 02:21:35,315 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-20 02:21:35,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-20 02:21:35,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-20 02:21:35,315 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_large_buffers [2022-07-20 02:21:35,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_large_buffers [2022-07-20 02:21:35,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-20 02:21:35,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-20 02:21:35,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-20 02:21:35,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-20 02:21:35,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-20 02:21:35,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-20 02:21:35,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-20 02:21:35,317 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-20 02:21:35,317 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-20 02:21:35,317 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2022-07-20 02:21:35,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2022-07-20 02:21:35,318 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-07-20 02:21:35,318 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-07-20 02:21:35,318 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-07-20 02:21:35,318 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-07-20 02:21:35,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-20 02:21:35,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-20 02:21:35,319 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_page0_reg [2022-07-20 02:21:35,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_page0_reg [2022-07-20 02:21:35,319 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-20 02:21:35,319 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-20 02:21:35,319 INFO L130 BoogieDeclarations]: Found specification of procedure PHY_Setup [2022-07-20 02:21:35,319 INFO L138 BoogieDeclarations]: Found implementation of procedure PHY_Setup [2022-07-20 02:21:35,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-20 02:21:35,320 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-20 02:21:35,320 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_buffer_queues [2022-07-20 02:21:35,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_buffer_queues [2022-07-20 02:21:35,320 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-20 02:21:35,320 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-20 02:21:35,320 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-20 02:21:35,321 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-20 02:21:35,321 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-07-20 02:21:35,321 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-07-20 02:21:35,321 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_remove [2022-07-20 02:21:35,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_remove [2022-07-20 02:21:35,321 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-20 02:21:35,321 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-20 02:21:35,321 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-07-20 02:21:35,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-07-20 02:21:35,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 02:21:35,322 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-20 02:21:35,323 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-20 02:21:35,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 02:21:35,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-20 02:21:35,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-20 02:21:35,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-20 02:21:35,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-20 02:21:35,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 02:21:35,328 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-07-20 02:21:35,328 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-07-20 02:21:35,328 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-20 02:21:35,329 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-20 02:21:35,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-20 02:21:35,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-20 02:21:35,330 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-20 02:21:35,330 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-20 02:21:35,331 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_page0_reg [2022-07-20 02:21:35,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_page0_reg [2022-07-20 02:21:35,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-07-20 02:21:35,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-07-20 02:21:35,331 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-20 02:21:35,331 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-20 02:21:35,331 INFO L130 BoogieDeclarations]: Found specification of procedure ql_is_link_full_dup [2022-07-20 02:21:35,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_is_link_full_dup [2022-07-20 02:21:35,332 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_open [2022-07-20 02:21:35,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_open [2022-07-20 02:21:35,332 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-20 02:21:35,332 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-20 02:21:35,332 INFO L130 BoogieDeclarations]: Found specification of procedure ql3xxx_tx_timeout [2022-07-20 02:21:35,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ql3xxx_tx_timeout [2022-07-20 02:21:35,333 INFO L130 BoogieDeclarations]: Found specification of procedure ql_supported_modes [2022-07-20 02:21:35,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_supported_modes [2022-07-20 02:21:35,333 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-07-20 02:21:35,333 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-07-20 02:21:35,333 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-20 02:21:35,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-20 02:21:35,333 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-20 02:21:35,333 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-20 02:21:35,334 INFO L130 BoogieDeclarations]: Found specification of procedure ql_is_fiber [2022-07-20 02:21:35,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_is_fiber [2022-07-20 02:21:35,334 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-07-20 02:21:35,334 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-07-20 02:21:35,334 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-20 02:21:35,334 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-20 02:21:35,334 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_net_req_rsp_queues [2022-07-20 02:21:35,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_net_req_rsp_queues [2022-07-20 02:21:35,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-20 02:21:35,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-20 02:21:35,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-20 02:21:35,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-20 02:21:35,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-20 02:21:35,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-20 02:21:35,336 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_write_reg_ex [2022-07-20 02:21:35,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_write_reg_ex [2022-07-20 02:21:35,336 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2022-07-20 02:21:35,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2022-07-20 02:21:35,337 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-20 02:21:35,337 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-20 02:21:35,337 INFO L130 BoogieDeclarations]: Found specification of procedure ql_port_start [2022-07-20 02:21:35,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_port_start [2022-07-20 02:21:35,337 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-07-20 02:21:35,337 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-07-20 02:21:35,338 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_auto_cfg_status [2022-07-20 02:21:35,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_auto_cfg_status [2022-07-20 02:21:35,338 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mii_write_reg [2022-07-20 02:21:35,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mii_write_reg [2022-07-20 02:21:35,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-20 02:21:35,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-20 02:21:35,338 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-07-20 02:21:35,338 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-07-20 02:21:35,339 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-07-20 02:21:35,339 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-07-20 02:21:35,339 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-20 02:21:35,339 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-20 02:21:35,339 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-07-20 02:21:35,339 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2022-07-20 02:21:35,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2022-07-20 02:21:35,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-20 02:21:35,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-20 02:21:36,263 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 02:21:36,269 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 02:21:36,620 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-20 02:22:19,564 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-20 02:22:19,654 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 02:22:19,676 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 02:22:19,676 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-20 02:22:19,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:22:19 BoogieIcfgContainer [2022-07-20 02:22:19,683 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 02:22:19,685 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 02:22:19,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 02:22:19,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 02:22:19,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 02:21:29" (1/3) ... [2022-07-20 02:22:19,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52028ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:22:19, skipping insertion in model container [2022-07-20 02:22:19,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:21:34" (2/3) ... [2022-07-20 02:22:19,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52028ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:22:19, skipping insertion in model container [2022-07-20 02:22:19,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:22:19" (3/3) ... [2022-07-20 02:22:19,692 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i [2022-07-20 02:22:19,706 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 02:22:19,707 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-20 02:22:19,806 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 02:22:19,812 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@46013c2b, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@50f0d267 [2022-07-20 02:22:19,813 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-20 02:22:19,832 INFO L276 IsEmpty]: Start isEmpty. Operand has 2500 states, 1648 states have (on average 1.258495145631068) internal successors, (2074), 1699 states have internal predecessors, (2074), 714 states have call successors, (714), 136 states have call predecessors, (714), 135 states have return successors, (709), 694 states have call predecessors, (709), 709 states have call successors, (709) [2022-07-20 02:22:19,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-20 02:22:19,845 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:22:19,846 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:22:19,846 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:22:19,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:22:19,850 INFO L85 PathProgramCache]: Analyzing trace with hash 404930848, now seen corresponding path program 1 times [2022-07-20 02:22:19,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:22:19,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1299540646] [2022-07-20 02:22:19,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:22:19,866 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:22:19,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:22:19,869 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:22:19,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-20 02:22:21,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:22:21,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 1224 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 02:22:21,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:22:21,258 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-20 02:22:21,259 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:22:21,259 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:22:21,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1299540646] [2022-07-20 02:22:21,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1299540646] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:22:21,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:22:21,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 02:22:21,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737316951] [2022-07-20 02:22:21,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:22:21,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 02:22:21,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:22:21,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 02:22:21,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:22:21,299 INFO L87 Difference]: Start difference. First operand has 2500 states, 1648 states have (on average 1.258495145631068) internal successors, (2074), 1699 states have internal predecessors, (2074), 714 states have call successors, (714), 136 states have call predecessors, (714), 135 states have return successors, (709), 694 states have call predecessors, (709), 709 states have call successors, (709) Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-20 02:22:21,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:22:21,886 INFO L93 Difference]: Finished difference Result 7383 states and 10536 transitions. [2022-07-20 02:22:21,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 02:22:21,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 112 [2022-07-20 02:22:21,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:22:21,938 INFO L225 Difference]: With dead ends: 7383 [2022-07-20 02:22:21,938 INFO L226 Difference]: Without dead ends: 4894 [2022-07-20 02:22:21,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:22:21,966 INFO L413 NwaCegarLoop]: 4176 mSDtfsCounter, 3386 mSDsluCounter, 3443 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3386 SdHoareTripleChecker+Valid, 7619 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 02:22:21,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3386 Valid, 7619 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 02:22:21,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4894 states. [2022-07-20 02:22:22,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4894 to 4890. [2022-07-20 02:22:22,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4890 states, 3236 states have (on average 1.2533992583436342) internal successors, (4056), 3336 states have internal predecessors, (4056), 1384 states have call successors, (1384), 268 states have call predecessors, (1384), 267 states have return successors, (1381), 1351 states have call predecessors, (1381), 1381 states have call successors, (1381) [2022-07-20 02:22:22,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4890 states to 4890 states and 6821 transitions. [2022-07-20 02:22:22,312 INFO L78 Accepts]: Start accepts. Automaton has 4890 states and 6821 transitions. Word has length 112 [2022-07-20 02:22:22,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:22:22,313 INFO L495 AbstractCegarLoop]: Abstraction has 4890 states and 6821 transitions. [2022-07-20 02:22:22,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-20 02:22:22,313 INFO L276 IsEmpty]: Start isEmpty. Operand 4890 states and 6821 transitions. [2022-07-20 02:22:22,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-20 02:22:22,317 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:22:22,318 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:22:22,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-20 02:22:22,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:22:22,540 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:22:22,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:22:22,540 INFO L85 PathProgramCache]: Analyzing trace with hash -376960966, now seen corresponding path program 1 times [2022-07-20 02:22:22,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:22:22,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1720512790] [2022-07-20 02:22:22,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:22:22,542 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:22:22,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:22:22,543 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:22:22,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-20 02:22:23,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:22:23,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 1295 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 02:22:23,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:22:23,834 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-20 02:22:23,834 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:22:23,834 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:22:23,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1720512790] [2022-07-20 02:22:23,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1720512790] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:22:23,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:22:23,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 02:22:23,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825710255] [2022-07-20 02:22:23,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:22:23,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 02:22:23,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:22:23,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 02:22:23,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:22:23,837 INFO L87 Difference]: Start difference. First operand 4890 states and 6821 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-20 02:22:24,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:22:24,469 INFO L93 Difference]: Finished difference Result 9061 states and 12519 transitions. [2022-07-20 02:22:24,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 02:22:24,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 117 [2022-07-20 02:22:24,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:22:24,502 INFO L225 Difference]: With dead ends: 9061 [2022-07-20 02:22:24,502 INFO L226 Difference]: Without dead ends: 4192 [2022-07-20 02:22:24,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:22:24,534 INFO L413 NwaCegarLoop]: 3749 mSDtfsCounter, 1143 mSDsluCounter, 3407 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 7156 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 02:22:24,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1143 Valid, 7156 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 02:22:24,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4192 states. [2022-07-20 02:22:24,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4192 to 4166. [2022-07-20 02:22:24,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4166 states, 2791 states have (on average 1.2393407380867072) internal successors, (3459), 2858 states have internal predecessors, (3459), 1102 states have call successors, (1102), 271 states have call predecessors, (1102), 270 states have return successors, (1099), 1081 states have call predecessors, (1099), 1099 states have call successors, (1099) [2022-07-20 02:22:24,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4166 states to 4166 states and 5660 transitions. [2022-07-20 02:22:24,803 INFO L78 Accepts]: Start accepts. Automaton has 4166 states and 5660 transitions. Word has length 117 [2022-07-20 02:22:24,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:22:24,806 INFO L495 AbstractCegarLoop]: Abstraction has 4166 states and 5660 transitions. [2022-07-20 02:22:24,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-20 02:22:24,806 INFO L276 IsEmpty]: Start isEmpty. Operand 4166 states and 5660 transitions. [2022-07-20 02:22:24,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-07-20 02:22:24,809 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:22:24,810 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:22:24,854 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-20 02:22:25,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:22:25,011 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:22:25,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:22:25,012 INFO L85 PathProgramCache]: Analyzing trace with hash 656615772, now seen corresponding path program 1 times [2022-07-20 02:22:25,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:22:25,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [26506973] [2022-07-20 02:22:25,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:22:25,013 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:22:25,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:22:25,015 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:22:25,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-20 02:22:26,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:22:26,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 1274 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 02:22:26,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:22:26,262 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-20 02:22:26,262 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:22:26,262 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:22:26,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [26506973] [2022-07-20 02:22:26,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [26506973] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:22:26,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:22:26,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 02:22:26,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208772217] [2022-07-20 02:22:26,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:22:26,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 02:22:26,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:22:26,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 02:22:26,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:22:26,264 INFO L87 Difference]: Start difference. First operand 4166 states and 5660 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-20 02:22:26,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:22:26,691 INFO L93 Difference]: Finished difference Result 11244 states and 15314 transitions. [2022-07-20 02:22:26,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 02:22:26,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 120 [2022-07-20 02:22:26,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:22:26,747 INFO L225 Difference]: With dead ends: 11244 [2022-07-20 02:22:26,748 INFO L226 Difference]: Without dead ends: 7099 [2022-07-20 02:22:26,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:22:26,778 INFO L413 NwaCegarLoop]: 4457 mSDtfsCounter, 3339 mSDsluCounter, 3267 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3339 SdHoareTripleChecker+Valid, 7724 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 02:22:26,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3339 Valid, 7724 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 02:22:26,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7099 states. [2022-07-20 02:22:27,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7099 to 7065. [2022-07-20 02:22:27,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7065 states, 4743 states have (on average 1.2426734134514021) internal successors, (5894), 4865 states have internal predecessors, (5894), 1859 states have call successors, (1859), 465 states have call predecessors, (1859), 460 states have return successors, (1875), 1811 states have call predecessors, (1875), 1856 states have call successors, (1875) [2022-07-20 02:22:27,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7065 states to 7065 states and 9628 transitions. [2022-07-20 02:22:27,120 INFO L78 Accepts]: Start accepts. Automaton has 7065 states and 9628 transitions. Word has length 120 [2022-07-20 02:22:27,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:22:27,121 INFO L495 AbstractCegarLoop]: Abstraction has 7065 states and 9628 transitions. [2022-07-20 02:22:27,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-20 02:22:27,121 INFO L276 IsEmpty]: Start isEmpty. Operand 7065 states and 9628 transitions. [2022-07-20 02:22:27,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-07-20 02:22:27,124 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:22:27,124 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:22:27,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-20 02:22:27,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:22:27,337 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:22:27,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:22:27,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1149806852, now seen corresponding path program 1 times [2022-07-20 02:22:27,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:22:27,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1259317126] [2022-07-20 02:22:27,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:22:27,340 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:22:27,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:22:27,344 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:22:27,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-20 02:22:28,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:22:28,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 1314 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 02:22:28,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:22:28,485 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-20 02:22:28,485 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:22:28,485 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:22:28,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1259317126] [2022-07-20 02:22:28,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1259317126] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:22:28,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:22:28,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 02:22:28,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695824864] [2022-07-20 02:22:28,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:22:28,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 02:22:28,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:22:28,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 02:22:28,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:22:28,487 INFO L87 Difference]: Start difference. First operand 7065 states and 9628 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-20 02:22:29,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:22:29,255 INFO L93 Difference]: Finished difference Result 17952 states and 24573 transitions. [2022-07-20 02:22:29,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 02:22:29,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 135 [2022-07-20 02:22:29,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:22:29,325 INFO L225 Difference]: With dead ends: 17952 [2022-07-20 02:22:29,326 INFO L226 Difference]: Without dead ends: 10908 [2022-07-20 02:22:29,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:22:29,360 INFO L413 NwaCegarLoop]: 4095 mSDtfsCounter, 2988 mSDsluCounter, 3388 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2988 SdHoareTripleChecker+Valid, 7483 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 02:22:29,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2988 Valid, 7483 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 02:22:29,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10908 states. [2022-07-20 02:22:29,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10908 to 10873. [2022-07-20 02:22:29,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10873 states, 7248 states have (on average 1.2425496688741722) internal successors, (9006), 7477 states have internal predecessors, (9006), 2931 states have call successors, (2931), 701 states have call predecessors, (2931), 691 states have return successors, (2968), 2832 states have call predecessors, (2968), 2928 states have call successors, (2968) [2022-07-20 02:22:29,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10873 states to 10873 states and 14905 transitions. [2022-07-20 02:22:29,785 INFO L78 Accepts]: Start accepts. Automaton has 10873 states and 14905 transitions. Word has length 135 [2022-07-20 02:22:29,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:22:29,786 INFO L495 AbstractCegarLoop]: Abstraction has 10873 states and 14905 transitions. [2022-07-20 02:22:29,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-20 02:22:29,787 INFO L276 IsEmpty]: Start isEmpty. Operand 10873 states and 14905 transitions. [2022-07-20 02:22:29,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-07-20 02:22:29,789 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:22:29,789 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 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] [2022-07-20 02:22:29,828 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-20 02:22:30,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:22:30,013 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:22:30,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:22:30,013 INFO L85 PathProgramCache]: Analyzing trace with hash -473532878, now seen corresponding path program 1 times [2022-07-20 02:22:30,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:22:30,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1453382319] [2022-07-20 02:22:30,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:22:30,015 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:22:30,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:22:30,017 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:22:30,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-20 02:22:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:22:31,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 1345 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:22:31,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:22:32,624 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2022-07-20 02:22:32,624 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:22:32,625 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:22:32,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1453382319] [2022-07-20 02:22:32,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1453382319] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:22:32,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:22:32,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 02:22:32,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682174775] [2022-07-20 02:22:32,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:22:32,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:22:32,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:22:32,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:22:32,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 02:22:32,627 INFO L87 Difference]: Start difference. First operand 10873 states and 14905 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-20 02:22:33,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:22:33,087 INFO L93 Difference]: Finished difference Result 10879 states and 14910 transitions. [2022-07-20 02:22:33,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 02:22:33,088 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 164 [2022-07-20 02:22:33,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:22:33,157 INFO L225 Difference]: With dead ends: 10879 [2022-07-20 02:22:33,158 INFO L226 Difference]: Without dead ends: 10877 [2022-07-20 02:22:33,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:22:33,169 INFO L413 NwaCegarLoop]: 3466 mSDtfsCounter, 3395 mSDsluCounter, 6919 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3396 SdHoareTripleChecker+Valid, 10385 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 02:22:33,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3396 Valid, 10385 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 02:22:33,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10877 states. [2022-07-20 02:22:33,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10877 to 10877. [2022-07-20 02:22:33,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10877 states, 7251 states have (on average 1.24244931733554) internal successors, (9009), 7480 states have internal predecessors, (9009), 2931 states have call successors, (2931), 702 states have call predecessors, (2931), 692 states have return successors, (2968), 2832 states have call predecessors, (2968), 2928 states have call successors, (2968) [2022-07-20 02:22:33,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10877 states to 10877 states and 14908 transitions. [2022-07-20 02:22:33,698 INFO L78 Accepts]: Start accepts. Automaton has 10877 states and 14908 transitions. Word has length 164 [2022-07-20 02:22:33,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:22:33,699 INFO L495 AbstractCegarLoop]: Abstraction has 10877 states and 14908 transitions. [2022-07-20 02:22:33,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-07-20 02:22:33,699 INFO L276 IsEmpty]: Start isEmpty. Operand 10877 states and 14908 transitions. [2022-07-20 02:22:33,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-20 02:22:33,702 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:22:33,702 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 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] [2022-07-20 02:22:33,738 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-07-20 02:22:33,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:22:33,916 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:22:33,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:22:33,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1390037152, now seen corresponding path program 1 times [2022-07-20 02:22:33,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:22:33,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [835902979] [2022-07-20 02:22:33,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:22:33,918 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:22:33,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:22:33,919 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:22:33,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-20 02:22:34,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:22:34,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 1352 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:22:34,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:22:36,158 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2022-07-20 02:22:36,159 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:22:36,742 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2022-07-20 02:22:36,743 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:22:36,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [835902979] [2022-07-20 02:22:36,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [835902979] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:22:36,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:22:36,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:22:36,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384893332] [2022-07-20 02:22:36,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:22:36,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:22:36,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:22:36,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:22:36,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:22:36,744 INFO L87 Difference]: Start difference. First operand 10877 states and 14908 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-20 02:22:37,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:22:37,270 INFO L93 Difference]: Finished difference Result 11240 states and 15288 transitions. [2022-07-20 02:22:37,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:22:37,270 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 169 [2022-07-20 02:22:37,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:22:37,334 INFO L225 Difference]: With dead ends: 11240 [2022-07-20 02:22:37,334 INFO L226 Difference]: Without dead ends: 11238 [2022-07-20 02:22:37,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:22:37,348 INFO L413 NwaCegarLoop]: 3504 mSDtfsCounter, 3376 mSDsluCounter, 7134 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3387 SdHoareTripleChecker+Valid, 10638 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 02:22:37,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3387 Valid, 10638 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 02:22:37,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11238 states. [2022-07-20 02:22:37,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11238 to 11234. [2022-07-20 02:22:37,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11234 states, 7461 states have (on average 1.237769735960327) internal successors, (9235), 7698 states have internal predecessors, (9235), 3006 states have call successors, (3006), 774 states have call predecessors, (3006), 764 states have return successors, (3043), 2907 states have call predecessors, (3043), 3003 states have call successors, (3043) [2022-07-20 02:22:37,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11234 states to 11234 states and 15284 transitions. [2022-07-20 02:22:37,932 INFO L78 Accepts]: Start accepts. Automaton has 11234 states and 15284 transitions. Word has length 169 [2022-07-20 02:22:37,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:22:37,933 INFO L495 AbstractCegarLoop]: Abstraction has 11234 states and 15284 transitions. [2022-07-20 02:22:37,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-20 02:22:37,933 INFO L276 IsEmpty]: Start isEmpty. Operand 11234 states and 15284 transitions. [2022-07-20 02:22:37,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-07-20 02:22:37,936 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:22:37,936 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 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] [2022-07-20 02:22:37,978 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-20 02:22:38,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:22:38,152 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:22:38,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:22:38,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1831592626, now seen corresponding path program 1 times [2022-07-20 02:22:38,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:22:38,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [774707019] [2022-07-20 02:22:38,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:22:38,154 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:22:38,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:22:38,156 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:22:38,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-20 02:22:39,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:22:39,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 1359 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:22:39,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:22:40,661 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2022-07-20 02:22:40,661 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:22:41,256 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2022-07-20 02:22:41,256 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:22:41,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [774707019] [2022-07-20 02:22:41,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [774707019] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:22:41,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:22:41,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:22:41,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009321404] [2022-07-20 02:22:41,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:22:41,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:22:41,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:22:41,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:22:41,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:22:41,258 INFO L87 Difference]: Start difference. First operand 11234 states and 15284 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-20 02:22:41,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:22:41,798 INFO L93 Difference]: Finished difference Result 11240 states and 15289 transitions. [2022-07-20 02:22:41,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:22:41,799 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 174 [2022-07-20 02:22:41,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:22:41,871 INFO L225 Difference]: With dead ends: 11240 [2022-07-20 02:22:41,871 INFO L226 Difference]: Without dead ends: 11238 [2022-07-20 02:22:41,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:22:41,884 INFO L413 NwaCegarLoop]: 3469 mSDtfsCounter, 3411 mSDsluCounter, 6918 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3421 SdHoareTripleChecker+Valid, 10387 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 02:22:41,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3421 Valid, 10387 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 02:22:41,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11238 states. [2022-07-20 02:22:42,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11238 to 11238. [2022-07-20 02:22:42,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11238 states, 7464 states have (on average 1.237674169346195) internal successors, (9238), 7701 states have internal predecessors, (9238), 3006 states have call successors, (3006), 775 states have call predecessors, (3006), 765 states have return successors, (3043), 2907 states have call predecessors, (3043), 3003 states have call successors, (3043) [2022-07-20 02:22:42,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11238 states to 11238 states and 15287 transitions. [2022-07-20 02:22:42,448 INFO L78 Accepts]: Start accepts. Automaton has 11238 states and 15287 transitions. Word has length 174 [2022-07-20 02:22:42,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:22:42,449 INFO L495 AbstractCegarLoop]: Abstraction has 11238 states and 15287 transitions. [2022-07-20 02:22:42,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-20 02:22:42,449 INFO L276 IsEmpty]: Start isEmpty. Operand 11238 states and 15287 transitions. [2022-07-20 02:22:42,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-07-20 02:22:42,452 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:22:42,453 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 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] [2022-07-20 02:22:42,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-20 02:22:42,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:22:42,676 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:22:42,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:22:42,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1207099844, now seen corresponding path program 1 times [2022-07-20 02:22:42,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:22:42,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1047847840] [2022-07-20 02:22:42,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:22:42,678 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:22:42,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:22:42,679 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:22:42,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-20 02:22:43,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:22:43,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 1433 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 02:22:43,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:22:44,075 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2022-07-20 02:22:44,075 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:22:44,076 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:22:44,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1047847840] [2022-07-20 02:22:44,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1047847840] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:22:44,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:22:44,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 02:22:44,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256483811] [2022-07-20 02:22:44,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:22:44,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 02:22:44,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:22:44,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 02:22:44,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:22:44,077 INFO L87 Difference]: Start difference. First operand 11238 states and 15287 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-20 02:22:44,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:22:44,838 INFO L93 Difference]: Finished difference Result 24634 states and 33361 transitions. [2022-07-20 02:22:44,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 02:22:44,839 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 177 [2022-07-20 02:22:44,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:22:44,910 INFO L225 Difference]: With dead ends: 24634 [2022-07-20 02:22:44,911 INFO L226 Difference]: Without dead ends: 13482 [2022-07-20 02:22:44,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:22:44,963 INFO L413 NwaCegarLoop]: 4573 mSDtfsCounter, 1134 mSDsluCounter, 3403 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 7976 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 02:22:44,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1134 Valid, 7976 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 02:22:44,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13482 states. [2022-07-20 02:22:45,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13482 to 13441. [2022-07-20 02:22:45,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13441 states, 8963 states have (on average 1.2309494588865335) internal successors, (11033), 9228 states have internal predecessors, (11033), 3500 states have call successors, (3500), 985 states have call predecessors, (3500), 975 states have return successors, (3537), 3389 states have call predecessors, (3537), 3497 states have call successors, (3537) [2022-07-20 02:22:45,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13441 states to 13441 states and 18070 transitions. [2022-07-20 02:22:45,590 INFO L78 Accepts]: Start accepts. Automaton has 13441 states and 18070 transitions. Word has length 177 [2022-07-20 02:22:45,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:22:45,590 INFO L495 AbstractCegarLoop]: Abstraction has 13441 states and 18070 transitions. [2022-07-20 02:22:45,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-20 02:22:45,591 INFO L276 IsEmpty]: Start isEmpty. Operand 13441 states and 18070 transitions. [2022-07-20 02:22:45,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-07-20 02:22:45,593 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:22:45,593 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 3, 3, 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] [2022-07-20 02:22:45,637 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-20 02:22:45,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:22:45,814 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:22:45,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:22:45,815 INFO L85 PathProgramCache]: Analyzing trace with hash 111074208, now seen corresponding path program 1 times [2022-07-20 02:22:45,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:22:45,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1358778245] [2022-07-20 02:22:45,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:22:45,816 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:22:45,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:22:45,819 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:22:45,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-20 02:22:46,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:22:46,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 1366 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:22:46,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:22:48,294 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2022-07-20 02:22:48,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:22:48,852 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2022-07-20 02:22:48,852 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:22:48,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1358778245] [2022-07-20 02:22:48,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1358778245] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:22:48,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:22:48,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:22:48,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957786857] [2022-07-20 02:22:48,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:22:48,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:22:48,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:22:48,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:22:48,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:22:48,854 INFO L87 Difference]: Start difference. First operand 13441 states and 18070 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-20 02:22:49,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:22:49,430 INFO L93 Difference]: Finished difference Result 13447 states and 18075 transitions. [2022-07-20 02:22:49,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:22:49,430 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 179 [2022-07-20 02:22:49,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:22:49,482 INFO L225 Difference]: With dead ends: 13447 [2022-07-20 02:22:49,482 INFO L226 Difference]: Without dead ends: 13445 [2022-07-20 02:22:49,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:22:49,492 INFO L413 NwaCegarLoop]: 3469 mSDtfsCounter, 3411 mSDsluCounter, 6918 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3420 SdHoareTripleChecker+Valid, 10387 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 02:22:49,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3420 Valid, 10387 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 02:22:49,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13445 states. [2022-07-20 02:22:50,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13445 to 13445. [2022-07-20 02:22:50,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13445 states, 8966 states have (on average 1.2308721838054875) internal successors, (11036), 9231 states have internal predecessors, (11036), 3500 states have call successors, (3500), 986 states have call predecessors, (3500), 976 states have return successors, (3537), 3389 states have call predecessors, (3537), 3497 states have call successors, (3537) [2022-07-20 02:22:50,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13445 states to 13445 states and 18073 transitions. [2022-07-20 02:22:50,176 INFO L78 Accepts]: Start accepts. Automaton has 13445 states and 18073 transitions. Word has length 179 [2022-07-20 02:22:50,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:22:50,176 INFO L495 AbstractCegarLoop]: Abstraction has 13445 states and 18073 transitions. [2022-07-20 02:22:50,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-20 02:22:50,177 INFO L276 IsEmpty]: Start isEmpty. Operand 13445 states and 18073 transitions. [2022-07-20 02:22:50,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-20 02:22:50,180 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:22:50,180 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:22:50,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-20 02:22:50,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:22:50,400 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:22:50,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:22:50,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1283809074, now seen corresponding path program 1 times [2022-07-20 02:22:50,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:22:50,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [965750817] [2022-07-20 02:22:50,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:22:50,402 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:22:50,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:22:50,404 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:22:50,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-20 02:22:51,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:22:51,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 1373 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:22:51,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:22:52,894 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2022-07-20 02:22:52,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:22:53,440 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2022-07-20 02:22:53,440 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:22:53,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [965750817] [2022-07-20 02:22:53,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [965750817] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:22:53,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:22:53,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:22:53,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115878979] [2022-07-20 02:22:53,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:22:53,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:22:53,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:22:53,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:22:53,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:22:53,442 INFO L87 Difference]: Start difference. First operand 13445 states and 18073 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-20 02:22:53,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:22:53,969 INFO L93 Difference]: Finished difference Result 13781 states and 18375 transitions. [2022-07-20 02:22:53,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:22:53,969 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 184 [2022-07-20 02:22:53,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:22:54,033 INFO L225 Difference]: With dead ends: 13781 [2022-07-20 02:22:54,034 INFO L226 Difference]: Without dead ends: 13779 [2022-07-20 02:22:54,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:22:54,049 INFO L413 NwaCegarLoop]: 3498 mSDtfsCounter, 2069 mSDsluCounter, 8360 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2077 SdHoareTripleChecker+Valid, 11858 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 02:22:54,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2077 Valid, 11858 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 02:22:54,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13779 states. [2022-07-20 02:22:54,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13779 to 13777. [2022-07-20 02:22:54,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13777 states, 9179 states have (on average 1.2270399825689073) internal successors, (11263), 9452 states have internal predecessors, (11263), 3536 states have call successors, (3536), 1069 states have call predecessors, (3536), 1059 states have return successors, (3573), 3425 states have call predecessors, (3573), 3533 states have call successors, (3573) [2022-07-20 02:22:54,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13777 states to 13777 states and 18372 transitions. [2022-07-20 02:22:54,663 INFO L78 Accepts]: Start accepts. Automaton has 13777 states and 18372 transitions. Word has length 184 [2022-07-20 02:22:54,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:22:54,664 INFO L495 AbstractCegarLoop]: Abstraction has 13777 states and 18372 transitions. [2022-07-20 02:22:54,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-20 02:22:54,664 INFO L276 IsEmpty]: Start isEmpty. Operand 13777 states and 18372 transitions. [2022-07-20 02:22:54,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-20 02:22:54,667 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:22:54,667 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:22:54,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-20 02:22:54,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:22:54,888 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:22:54,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:22:54,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1249468064, now seen corresponding path program 1 times [2022-07-20 02:22:54,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:22:54,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [628853391] [2022-07-20 02:22:54,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:22:54,890 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:22:54,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:22:54,892 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:22:54,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-20 02:22:56,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:22:56,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 1380 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:22:56,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:22:57,625 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2022-07-20 02:22:57,626 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:22:58,181 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2022-07-20 02:22:58,182 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:22:58,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [628853391] [2022-07-20 02:22:58,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [628853391] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:22:58,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:22:58,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:22:58,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905411014] [2022-07-20 02:22:58,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:22:58,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:22:58,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:22:58,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:22:58,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:22:58,183 INFO L87 Difference]: Start difference. First operand 13777 states and 18372 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-20 02:22:58,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:22:58,752 INFO L93 Difference]: Finished difference Result 13783 states and 18377 transitions. [2022-07-20 02:22:58,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:22:58,753 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 189 [2022-07-20 02:22:58,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:22:58,813 INFO L225 Difference]: With dead ends: 13783 [2022-07-20 02:22:58,813 INFO L226 Difference]: Without dead ends: 13781 [2022-07-20 02:22:58,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:22:58,827 INFO L413 NwaCegarLoop]: 3469 mSDtfsCounter, 3411 mSDsluCounter, 6918 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3418 SdHoareTripleChecker+Valid, 10387 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 02:22:58,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3418 Valid, 10387 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 02:22:58,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13781 states. [2022-07-20 02:22:59,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13781 to 13781. [2022-07-20 02:22:59,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13781 states, 9182 states have (on average 1.226965802657373) internal successors, (11266), 9455 states have internal predecessors, (11266), 3536 states have call successors, (3536), 1070 states have call predecessors, (3536), 1060 states have return successors, (3573), 3425 states have call predecessors, (3573), 3533 states have call successors, (3573) [2022-07-20 02:22:59,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13781 states to 13781 states and 18375 transitions. [2022-07-20 02:22:59,516 INFO L78 Accepts]: Start accepts. Automaton has 13781 states and 18375 transitions. Word has length 189 [2022-07-20 02:22:59,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:22:59,518 INFO L495 AbstractCegarLoop]: Abstraction has 13781 states and 18375 transitions. [2022-07-20 02:22:59,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-20 02:22:59,518 INFO L276 IsEmpty]: Start isEmpty. Operand 13781 states and 18375 transitions. [2022-07-20 02:22:59,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-07-20 02:22:59,521 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:22:59,521 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 7, 6, 6, 4, 4, 4, 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] [2022-07-20 02:22:59,554 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-20 02:22:59,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:22:59,748 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:22:59,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:22:59,749 INFO L85 PathProgramCache]: Analyzing trace with hash -335615054, now seen corresponding path program 1 times [2022-07-20 02:22:59,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:22:59,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [715396434] [2022-07-20 02:22:59,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:22:59,750 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:22:59,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:22:59,752 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:22:59,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-20 02:23:00,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:01,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 1387 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:23:01,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:23:02,393 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2022-07-20 02:23:02,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:23:02,964 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2022-07-20 02:23:02,964 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:23:02,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [715396434] [2022-07-20 02:23:02,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [715396434] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:23:02,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:23:02,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:23:02,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605053522] [2022-07-20 02:23:02,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:23:02,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:23:02,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:23:02,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:23:02,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:23:02,967 INFO L87 Difference]: Start difference. First operand 13781 states and 18375 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-20 02:23:03,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:23:03,576 INFO L93 Difference]: Finished difference Result 13787 states and 18380 transitions. [2022-07-20 02:23:03,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:23:03,577 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 194 [2022-07-20 02:23:03,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:23:03,641 INFO L225 Difference]: With dead ends: 13787 [2022-07-20 02:23:03,642 INFO L226 Difference]: Without dead ends: 13785 [2022-07-20 02:23:03,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 381 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:23:03,657 INFO L413 NwaCegarLoop]: 3469 mSDtfsCounter, 3411 mSDsluCounter, 6918 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3417 SdHoareTripleChecker+Valid, 10387 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 02:23:03,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3417 Valid, 10387 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 02:23:03,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13785 states. [2022-07-20 02:23:04,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13785 to 13785. [2022-07-20 02:23:04,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13785 states, 9185 states have (on average 1.2268916712030484) internal successors, (11269), 9458 states have internal predecessors, (11269), 3536 states have call successors, (3536), 1071 states have call predecessors, (3536), 1061 states have return successors, (3573), 3425 states have call predecessors, (3573), 3533 states have call successors, (3573) [2022-07-20 02:23:04,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13785 states to 13785 states and 18378 transitions. [2022-07-20 02:23:04,348 INFO L78 Accepts]: Start accepts. Automaton has 13785 states and 18378 transitions. Word has length 194 [2022-07-20 02:23:04,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:23:04,349 INFO L495 AbstractCegarLoop]: Abstraction has 13785 states and 18378 transitions. [2022-07-20 02:23:04,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-20 02:23:04,349 INFO L276 IsEmpty]: Start isEmpty. Operand 13785 states and 18378 transitions. [2022-07-20 02:23:04,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-07-20 02:23:04,352 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:23:04,352 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 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] [2022-07-20 02:23:04,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-20 02:23:04,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:23:04,571 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:23:04,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:23:04,572 INFO L85 PathProgramCache]: Analyzing trace with hash 928645637, now seen corresponding path program 1 times [2022-07-20 02:23:04,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:23:04,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1691309886] [2022-07-20 02:23:04,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:23:04,573 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:23:04,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:23:04,576 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:23:04,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-20 02:23:05,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:05,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 1443 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 02:23:05,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:23:05,930 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2022-07-20 02:23:05,930 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:23:05,930 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:23:05,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1691309886] [2022-07-20 02:23:05,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1691309886] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:23:05,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:23:05,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 02:23:05,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794907217] [2022-07-20 02:23:05,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:23:05,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 02:23:05,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:23:05,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 02:23:05,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:23:05,932 INFO L87 Difference]: Start difference. First operand 13785 states and 18378 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-07-20 02:23:06,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:23:06,749 INFO L93 Difference]: Finished difference Result 40682 states and 54283 transitions. [2022-07-20 02:23:06,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 02:23:06,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 217 [2022-07-20 02:23:06,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:23:06,850 INFO L225 Difference]: With dead ends: 40682 [2022-07-20 02:23:06,850 INFO L226 Difference]: Without dead ends: 26983 [2022-07-20 02:23:06,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:23:06,910 INFO L413 NwaCegarLoop]: 6822 mSDtfsCounter, 3379 mSDsluCounter, 3456 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3379 SdHoareTripleChecker+Valid, 10278 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 02:23:06,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3379 Valid, 10278 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 02:23:06,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26983 states. [2022-07-20 02:23:07,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26983 to 26932. [2022-07-20 02:23:07,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26932 states, 17953 states have (on average 1.2283183868991254) internal successors, (22052), 18465 states have internal predecessors, (22052), 6901 states have call successors, (6901), 2094 states have call predecessors, (6901), 2075 states have return successors, (6978), 6712 states have call predecessors, (6978), 6898 states have call successors, (6978) [2022-07-20 02:23:08,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26932 states to 26932 states and 35931 transitions. [2022-07-20 02:23:08,038 INFO L78 Accepts]: Start accepts. Automaton has 26932 states and 35931 transitions. Word has length 217 [2022-07-20 02:23:08,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:23:08,038 INFO L495 AbstractCegarLoop]: Abstraction has 26932 states and 35931 transitions. [2022-07-20 02:23:08,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-07-20 02:23:08,039 INFO L276 IsEmpty]: Start isEmpty. Operand 26932 states and 35931 transitions. [2022-07-20 02:23:08,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-20 02:23:08,041 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:23:08,041 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 8, 7, 7, 4, 4, 4, 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] [2022-07-20 02:23:08,068 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-20 02:23:08,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:23:08,256 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:23:08,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:23:08,256 INFO L85 PathProgramCache]: Analyzing trace with hash 800969120, now seen corresponding path program 1 times [2022-07-20 02:23:08,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:23:08,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1734677575] [2022-07-20 02:23:08,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:23:08,258 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:23:08,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:23:08,259 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:23:08,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-20 02:23:09,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:09,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 1394 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:23:09,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:23:10,965 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2022-07-20 02:23:10,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:23:11,643 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2022-07-20 02:23:11,644 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:23:11,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1734677575] [2022-07-20 02:23:11,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1734677575] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:23:11,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:23:11,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:23:11,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584251182] [2022-07-20 02:23:11,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:23:11,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:23:11,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:23:11,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:23:11,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:23:11,646 INFO L87 Difference]: Start difference. First operand 26932 states and 35931 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-20 02:23:12,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:23:12,837 INFO L93 Difference]: Finished difference Result 26938 states and 35936 transitions. [2022-07-20 02:23:12,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:23:12,838 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 199 [2022-07-20 02:23:12,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:23:12,991 INFO L225 Difference]: With dead ends: 26938 [2022-07-20 02:23:12,991 INFO L226 Difference]: Without dead ends: 26936 [2022-07-20 02:23:13,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:23:13,013 INFO L413 NwaCegarLoop]: 3469 mSDtfsCounter, 3411 mSDsluCounter, 6918 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3416 SdHoareTripleChecker+Valid, 10387 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 02:23:13,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3416 Valid, 10387 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 02:23:13,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26936 states. [2022-07-20 02:23:14,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26936 to 26936. [2022-07-20 02:23:14,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26936 states, 17956 states have (on average 1.2282802405881041) internal successors, (22055), 18468 states have internal predecessors, (22055), 6901 states have call successors, (6901), 2095 states have call predecessors, (6901), 2076 states have return successors, (6978), 6712 states have call predecessors, (6978), 6898 states have call successors, (6978) [2022-07-20 02:23:14,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26936 states to 26936 states and 35934 transitions. [2022-07-20 02:23:14,251 INFO L78 Accepts]: Start accepts. Automaton has 26936 states and 35934 transitions. Word has length 199 [2022-07-20 02:23:14,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:23:14,252 INFO L495 AbstractCegarLoop]: Abstraction has 26936 states and 35934 transitions. [2022-07-20 02:23:14,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-20 02:23:14,252 INFO L276 IsEmpty]: Start isEmpty. Operand 26936 states and 35934 transitions. [2022-07-20 02:23:14,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-07-20 02:23:14,255 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:23:14,255 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 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] [2022-07-20 02:23:14,289 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-20 02:23:14,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:23:14,472 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:23:14,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:23:14,472 INFO L85 PathProgramCache]: Analyzing trace with hash -816969109, now seen corresponding path program 1 times [2022-07-20 02:23:14,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:23:14,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1250964920] [2022-07-20 02:23:14,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:23:14,474 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:23:14,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:23:14,475 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:23:14,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-20 02:23:15,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:15,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 1450 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-20 02:23:15,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:23:17,078 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 112 proven. 3 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2022-07-20 02:23:17,079 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:23:18,615 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked. [2022-07-20 02:23:18,615 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:23:18,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1250964920] [2022-07-20 02:23:18,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1250964920] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 02:23:18,615 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 02:23:18,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 22 [2022-07-20 02:23:18,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149995247] [2022-07-20 02:23:18,616 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 02:23:18,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-20 02:23:18,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:23:18,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-20 02:23:18,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-07-20 02:23:18,617 INFO L87 Difference]: Start difference. First operand 26936 states and 35934 transitions. Second operand has 22 states, 21 states have (on average 4.0476190476190474) internal successors, (85), 20 states have internal predecessors, (85), 6 states have call successors, (44), 3 states have call predecessors, (44), 8 states have return successors, (43), 7 states have call predecessors, (43), 6 states have call successors, (43) [2022-07-20 02:23:49,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:23:49,997 INFO L93 Difference]: Finished difference Result 53887 states and 71839 transitions. [2022-07-20 02:23:49,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-07-20 02:23:49,998 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 4.0476190476190474) internal successors, (85), 20 states have internal predecessors, (85), 6 states have call successors, (44), 3 states have call predecessors, (44), 8 states have return successors, (43), 7 states have call predecessors, (43), 6 states have call successors, (43) Word has length 222 [2022-07-20 02:23:49,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:23:50,208 INFO L225 Difference]: With dead ends: 53887 [2022-07-20 02:23:50,208 INFO L226 Difference]: Without dead ends: 53716 [2022-07-20 02:23:50,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 425 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=287, Invalid=1693, Unknown=0, NotChecked=0, Total=1980 [2022-07-20 02:23:50,236 INFO L413 NwaCegarLoop]: 6575 mSDtfsCounter, 7639 mSDsluCounter, 95077 mSDsCounter, 0 mSdLazyCounter, 5969 mSolverCounterSat, 1707 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7677 SdHoareTripleChecker+Valid, 101652 SdHoareTripleChecker+Invalid, 7676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1707 IncrementalHoareTripleChecker+Valid, 5969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.9s IncrementalHoareTripleChecker+Time [2022-07-20 02:23:50,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7677 Valid, 101652 Invalid, 7676 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1707 Valid, 5969 Invalid, 0 Unknown, 0 Unchecked, 26.9s Time] [2022-07-20 02:23:50,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53716 states. [2022-07-20 02:23:52,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53716 to 40355. [2022-07-20 02:23:52,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40355 states, 26897 states have (on average 1.2287987507900509) internal successors, (33051), 27672 states have internal predecessors, (33051), 10338 states have call successors, (10338), 3145 states have call predecessors, (10338), 3117 states have return successors, (10455), 10047 states have call predecessors, (10455), 10335 states have call successors, (10455) [2022-07-20 02:23:52,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40355 states to 40355 states and 53844 transitions. [2022-07-20 02:23:52,259 INFO L78 Accepts]: Start accepts. Automaton has 40355 states and 53844 transitions. Word has length 222 [2022-07-20 02:23:52,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:23:52,260 INFO L495 AbstractCegarLoop]: Abstraction has 40355 states and 53844 transitions. [2022-07-20 02:23:52,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 4.0476190476190474) internal successors, (85), 20 states have internal predecessors, (85), 6 states have call successors, (44), 3 states have call predecessors, (44), 8 states have return successors, (43), 7 states have call predecessors, (43), 6 states have call successors, (43) [2022-07-20 02:23:52,261 INFO L276 IsEmpty]: Start isEmpty. Operand 40355 states and 53844 transitions. [2022-07-20 02:23:52,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-07-20 02:23:52,264 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:23:52,264 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:23:52,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-20 02:23:52,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:23:52,473 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:23:52,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:23:52,474 INFO L85 PathProgramCache]: Analyzing trace with hash -91105513, now seen corresponding path program 1 times [2022-07-20 02:23:52,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:23:52,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1702847864] [2022-07-20 02:23:52,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:23:52,475 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:23:52,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:23:52,477 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:23:52,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-20 02:23:53,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:23:53,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 1467 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:23:53,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:23:53,921 INFO L134 CoverageAnalysis]: Checked inductivity of 583 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2022-07-20 02:23:53,922 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:23:53,922 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:23:53,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1702847864] [2022-07-20 02:23:53,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1702847864] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:23:53,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:23:53,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 02:23:53,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041606420] [2022-07-20 02:23:53,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:23:53,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:23:53,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:23:53,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:23:53,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 02:23:53,923 INFO L87 Difference]: Start difference. First operand 40355 states and 53844 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-07-20 02:24:00,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:24:00,087 INFO L93 Difference]: Finished difference Result 78459 states and 104836 transitions. [2022-07-20 02:24:00,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 02:24:00,088 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 230 [2022-07-20 02:24:00,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:24:00,229 INFO L225 Difference]: With dead ends: 78459 [2022-07-20 02:24:00,229 INFO L226 Difference]: Without dead ends: 38178 [2022-07-20 02:24:00,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-20 02:24:00,340 INFO L413 NwaCegarLoop]: 4568 mSDtfsCounter, 1107 mSDsluCounter, 4803 mSDsCounter, 0 mSdLazyCounter, 973 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1116 SdHoareTripleChecker+Valid, 9371 SdHoareTripleChecker+Invalid, 975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-07-20 02:24:00,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1116 Valid, 9371 Invalid, 975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 973 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-07-20 02:24:00,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38178 states. [2022-07-20 02:24:01,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38178 to 38122. [2022-07-20 02:24:01,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38122 states, 25379 states have (on average 1.2303479254501752) internal successors, (31225), 26120 states have internal predecessors, (31225), 9832 states have call successors, (9832), 2936 states have call predecessors, (9832), 2908 states have return successors, (9949), 9557 states have call predecessors, (9949), 9829 states have call successors, (9949) [2022-07-20 02:24:02,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38122 states to 38122 states and 51006 transitions. [2022-07-20 02:24:02,120 INFO L78 Accepts]: Start accepts. Automaton has 38122 states and 51006 transitions. Word has length 230 [2022-07-20 02:24:02,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:24:02,120 INFO L495 AbstractCegarLoop]: Abstraction has 38122 states and 51006 transitions. [2022-07-20 02:24:02,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-07-20 02:24:02,121 INFO L276 IsEmpty]: Start isEmpty. Operand 38122 states and 51006 transitions. [2022-07-20 02:24:02,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-07-20 02:24:02,123 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:24:02,123 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 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] [2022-07-20 02:24:02,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-20 02:24:02,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:24:02,324 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:24:02,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:24:02,324 INFO L85 PathProgramCache]: Analyzing trace with hash -289109966, now seen corresponding path program 1 times [2022-07-20 02:24:02,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:24:02,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1532323457] [2022-07-20 02:24:02,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:24:02,326 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:24:02,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:24:02,328 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:24:02,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-20 02:24:03,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:03,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 1401 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:24:03,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:24:04,796 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2022-07-20 02:24:04,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:24:05,404 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2022-07-20 02:24:05,404 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:24:05,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1532323457] [2022-07-20 02:24:05,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1532323457] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:24:05,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:24:05,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:24:05,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373746848] [2022-07-20 02:24:05,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:24:05,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:24:05,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:24:05,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:24:05,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:24:05,406 INFO L87 Difference]: Start difference. First operand 38122 states and 51006 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-20 02:24:06,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:24:06,964 INFO L93 Difference]: Finished difference Result 38128 states and 51011 transitions. [2022-07-20 02:24:06,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:24:06,965 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 204 [2022-07-20 02:24:06,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:24:07,108 INFO L225 Difference]: With dead ends: 38128 [2022-07-20 02:24:07,108 INFO L226 Difference]: Without dead ends: 38126 [2022-07-20 02:24:07,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:24:07,136 INFO L413 NwaCegarLoop]: 3469 mSDtfsCounter, 3411 mSDsluCounter, 6918 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3415 SdHoareTripleChecker+Valid, 10387 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 02:24:07,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3415 Valid, 10387 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 02:24:07,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38126 states. [2022-07-20 02:24:08,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38126 to 38126. [2022-07-20 02:24:08,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38126 states, 25382 states have (on average 1.2303206997084548) internal successors, (31228), 26123 states have internal predecessors, (31228), 9832 states have call successors, (9832), 2937 states have call predecessors, (9832), 2909 states have return successors, (9949), 9557 states have call predecessors, (9949), 9829 states have call successors, (9949) [2022-07-20 02:24:09,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38126 states to 38126 states and 51009 transitions. [2022-07-20 02:24:09,044 INFO L78 Accepts]: Start accepts. Automaton has 38126 states and 51009 transitions. Word has length 204 [2022-07-20 02:24:09,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:24:09,044 INFO L495 AbstractCegarLoop]: Abstraction has 38126 states and 51009 transitions. [2022-07-20 02:24:09,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-20 02:24:09,045 INFO L276 IsEmpty]: Start isEmpty. Operand 38126 states and 51009 transitions. [2022-07-20 02:24:09,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-07-20 02:24:09,046 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:24:09,046 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 9, 9, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:24:09,072 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-20 02:24:09,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:24:09,247 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:24:09,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:24:09,248 INFO L85 PathProgramCache]: Analyzing trace with hash 784348320, now seen corresponding path program 1 times [2022-07-20 02:24:09,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:24:09,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [714423127] [2022-07-20 02:24:09,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:24:09,249 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:24:09,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:24:09,251 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:24:09,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-20 02:24:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:10,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 1408 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:24:10,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:24:11,633 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2022-07-20 02:24:11,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:24:12,213 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2022-07-20 02:24:12,214 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:24:12,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [714423127] [2022-07-20 02:24:12,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [714423127] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:24:12,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:24:12,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:24:12,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602208526] [2022-07-20 02:24:12,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:24:12,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:24:12,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:24:12,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:24:12,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:24:12,216 INFO L87 Difference]: Start difference. First operand 38126 states and 51009 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-20 02:24:13,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:24:13,758 INFO L93 Difference]: Finished difference Result 38132 states and 51014 transitions. [2022-07-20 02:24:13,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:24:13,759 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 209 [2022-07-20 02:24:13,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:24:13,895 INFO L225 Difference]: With dead ends: 38132 [2022-07-20 02:24:13,896 INFO L226 Difference]: Without dead ends: 38130 [2022-07-20 02:24:13,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:24:13,921 INFO L413 NwaCegarLoop]: 3469 mSDtfsCounter, 3411 mSDsluCounter, 6918 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3414 SdHoareTripleChecker+Valid, 10387 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 02:24:13,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3414 Valid, 10387 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 02:24:13,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38130 states. [2022-07-20 02:24:15,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38130 to 38130. [2022-07-20 02:24:15,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38130 states, 25385 states have (on average 1.2302934804018122) internal successors, (31231), 26126 states have internal predecessors, (31231), 9832 states have call successors, (9832), 2938 states have call predecessors, (9832), 2910 states have return successors, (9949), 9557 states have call predecessors, (9949), 9829 states have call successors, (9949) [2022-07-20 02:24:15,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38130 states to 38130 states and 51012 transitions. [2022-07-20 02:24:15,998 INFO L78 Accepts]: Start accepts. Automaton has 38130 states and 51012 transitions. Word has length 209 [2022-07-20 02:24:15,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:24:15,999 INFO L495 AbstractCegarLoop]: Abstraction has 38130 states and 51012 transitions. [2022-07-20 02:24:15,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-20 02:24:15,999 INFO L276 IsEmpty]: Start isEmpty. Operand 38130 states and 51012 transitions. [2022-07-20 02:24:16,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-07-20 02:24:16,001 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:24:16,001 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 10, 10, 8, 8, 8, 8, 8, 8, 4, 4, 4, 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] [2022-07-20 02:24:16,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-07-20 02:24:16,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:24:16,202 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:24:16,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:24:16,203 INFO L85 PathProgramCache]: Analyzing trace with hash -251513678, now seen corresponding path program 1 times [2022-07-20 02:24:16,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:24:16,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1474585699] [2022-07-20 02:24:16,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:24:16,204 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:24:16,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:24:16,205 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:24:16,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-07-20 02:24:17,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:17,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 1415 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:24:17,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:24:18,619 INFO L134 CoverageAnalysis]: Checked inductivity of 596 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2022-07-20 02:24:18,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:24:19,204 INFO L134 CoverageAnalysis]: Checked inductivity of 596 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2022-07-20 02:24:19,204 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:24:19,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1474585699] [2022-07-20 02:24:19,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1474585699] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:24:19,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:24:19,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:24:19,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052358190] [2022-07-20 02:24:19,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:24:19,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:24:19,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:24:19,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:24:19,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:24:19,206 INFO L87 Difference]: Start difference. First operand 38130 states and 51012 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-20 02:24:20,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:24:20,715 INFO L93 Difference]: Finished difference Result 38136 states and 51017 transitions. [2022-07-20 02:24:20,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:24:20,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 214 [2022-07-20 02:24:20,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:24:20,853 INFO L225 Difference]: With dead ends: 38136 [2022-07-20 02:24:20,853 INFO L226 Difference]: Without dead ends: 38134 [2022-07-20 02:24:20,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 421 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:24:20,871 INFO L413 NwaCegarLoop]: 3469 mSDtfsCounter, 3411 mSDsluCounter, 6918 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3413 SdHoareTripleChecker+Valid, 10387 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 02:24:20,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3413 Valid, 10387 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 02:24:20,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38134 states. [2022-07-20 02:24:22,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38134 to 38134. [2022-07-20 02:24:22,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38134 states, 25388 states have (on average 1.2302662675279659) internal successors, (31234), 26129 states have internal predecessors, (31234), 9832 states have call successors, (9832), 2939 states have call predecessors, (9832), 2911 states have return successors, (9949), 9557 states have call predecessors, (9949), 9829 states have call successors, (9949) [2022-07-20 02:24:22,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38134 states to 38134 states and 51015 transitions. [2022-07-20 02:24:22,921 INFO L78 Accepts]: Start accepts. Automaton has 38134 states and 51015 transitions. Word has length 214 [2022-07-20 02:24:22,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:24:22,921 INFO L495 AbstractCegarLoop]: Abstraction has 38134 states and 51015 transitions. [2022-07-20 02:24:22,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-20 02:24:22,922 INFO L276 IsEmpty]: Start isEmpty. Operand 38134 states and 51015 transitions. [2022-07-20 02:24:22,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-07-20 02:24:22,924 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:24:22,924 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 11, 11, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:24:22,948 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2022-07-20 02:24:23,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:24:23,125 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:24:23,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:24:23,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1725204384, now seen corresponding path program 1 times [2022-07-20 02:24:23,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:24:23,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [195413143] [2022-07-20 02:24:23,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:24:23,126 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:24:23,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:24:23,127 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:24:23,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-07-20 02:24:24,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:24,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 1422 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:24:24,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:24:25,570 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2022-07-20 02:24:25,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:24:26,177 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2022-07-20 02:24:26,177 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:24:26,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [195413143] [2022-07-20 02:24:26,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [195413143] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:24:26,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:24:26,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:24:26,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907412668] [2022-07-20 02:24:26,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:24:26,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:24:26,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:24:26,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:24:26,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:24:26,179 INFO L87 Difference]: Start difference. First operand 38134 states and 51015 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-20 02:24:27,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:24:27,879 INFO L93 Difference]: Finished difference Result 38140 states and 51020 transitions. [2022-07-20 02:24:27,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:24:27,879 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 219 [2022-07-20 02:24:27,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:24:28,041 INFO L225 Difference]: With dead ends: 38140 [2022-07-20 02:24:28,041 INFO L226 Difference]: Without dead ends: 38136 [2022-07-20 02:24:28,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:24:28,059 INFO L413 NwaCegarLoop]: 3469 mSDtfsCounter, 3411 mSDsluCounter, 6918 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3412 SdHoareTripleChecker+Valid, 10387 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 02:24:28,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3412 Valid, 10387 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 02:24:28,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38136 states. [2022-07-20 02:24:29,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38136 to 38136. [2022-07-20 02:24:29,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38136 states, 25390 states have (on average 1.2302087435998426) internal successors, (31235), 26130 states have internal predecessors, (31235), 9832 states have call successors, (9832), 2940 states have call predecessors, (9832), 2911 states have return successors, (9949), 9557 states have call predecessors, (9949), 9829 states have call successors, (9949) [2022-07-20 02:24:29,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38136 states to 38136 states and 51016 transitions. [2022-07-20 02:24:29,952 INFO L78 Accepts]: Start accepts. Automaton has 38136 states and 51016 transitions. Word has length 219 [2022-07-20 02:24:29,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:24:29,953 INFO L495 AbstractCegarLoop]: Abstraction has 38136 states and 51016 transitions. [2022-07-20 02:24:29,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-20 02:24:29,953 INFO L276 IsEmpty]: Start isEmpty. Operand 38136 states and 51016 transitions. [2022-07-20 02:24:29,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-07-20 02:24:29,956 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:24:29,956 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 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] [2022-07-20 02:24:29,995 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-07-20 02:24:30,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:24:30,176 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:24:30,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:24:30,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1206120754, now seen corresponding path program 1 times [2022-07-20 02:24:30,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:24:30,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1562058930] [2022-07-20 02:24:30,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:24:30,177 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:24:30,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:24:30,178 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:24:30,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-07-20 02:24:31,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:31,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 1429 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:24:31,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:24:32,645 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2022-07-20 02:24:32,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:24:33,247 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2022-07-20 02:24:33,248 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:24:33,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1562058930] [2022-07-20 02:24:33,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1562058930] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:24:33,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:24:33,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:24:33,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144474567] [2022-07-20 02:24:33,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:24:33,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:24:33,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:24:33,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:24:33,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:24:33,249 INFO L87 Difference]: Start difference. First operand 38136 states and 51016 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-20 02:24:34,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:24:34,749 INFO L93 Difference]: Finished difference Result 38136 states and 51016 transitions. [2022-07-20 02:24:34,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:24:34,749 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 224 [2022-07-20 02:24:34,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:24:34,903 INFO L225 Difference]: With dead ends: 38136 [2022-07-20 02:24:34,903 INFO L226 Difference]: Without dead ends: 37891 [2022-07-20 02:24:34,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:24:34,931 INFO L413 NwaCegarLoop]: 3467 mSDtfsCounter, 3407 mSDsluCounter, 6917 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3407 SdHoareTripleChecker+Valid, 10384 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 02:24:34,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3407 Valid, 10384 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 02:24:34,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37891 states. [2022-07-20 02:24:36,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37891 to 37891. [2022-07-20 02:24:36,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37891 states, 25223 states have (on average 1.2295523926574952) internal successors, (31013), 25943 states have internal predecessors, (31013), 9773 states have call successors, (9773), 2920 states have call predecessors, (9773), 2893 states have return successors, (9893), 9519 states have call predecessors, (9893), 9773 states have call successors, (9893) [2022-07-20 02:24:36,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37891 states to 37891 states and 50679 transitions. [2022-07-20 02:24:36,848 INFO L78 Accepts]: Start accepts. Automaton has 37891 states and 50679 transitions. Word has length 224 [2022-07-20 02:24:36,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:24:36,848 INFO L495 AbstractCegarLoop]: Abstraction has 37891 states and 50679 transitions. [2022-07-20 02:24:36,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-20 02:24:36,848 INFO L276 IsEmpty]: Start isEmpty. Operand 37891 states and 50679 transitions. [2022-07-20 02:24:36,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-07-20 02:24:36,851 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:24:36,851 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:24:36,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-07-20 02:24:37,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:24:37,067 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:24:37,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:24:37,068 INFO L85 PathProgramCache]: Analyzing trace with hash -10417404, now seen corresponding path program 1 times [2022-07-20 02:24:37,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:24:37,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [493038985] [2022-07-20 02:24:37,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:24:37,069 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:24:37,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:24:37,070 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:24:37,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-07-20 02:24:38,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:38,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 1573 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 02:24:38,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:24:38,235 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2022-07-20 02:24:38,235 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:24:38,235 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:24:38,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [493038985] [2022-07-20 02:24:38,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [493038985] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:24:38,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:24:38,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 02:24:38,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636628275] [2022-07-20 02:24:38,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:24:38,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 02:24:38,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:24:38,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 02:24:38,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:24:38,237 INFO L87 Difference]: Start difference. First operand 37891 states and 50679 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-20 02:24:40,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:24:40,519 INFO L93 Difference]: Finished difference Result 82080 states and 109359 transitions. [2022-07-20 02:24:40,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 02:24:40,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 251 [2022-07-20 02:24:40,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:24:40,685 INFO L225 Difference]: With dead ends: 82080 [2022-07-20 02:24:40,686 INFO L226 Difference]: Without dead ends: 44208 [2022-07-20 02:24:40,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:24:40,950 INFO L413 NwaCegarLoop]: 4507 mSDtfsCounter, 1093 mSDsluCounter, 3360 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 7867 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 02:24:40,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1093 Valid, 7867 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 02:24:40,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44208 states. [2022-07-20 02:24:42,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44208 to 44200. [2022-07-20 02:24:42,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44200 states, 29521 states have (on average 1.2245858880119238) internal successors, (36151), 30307 states have internal predecessors, (36151), 11145 states have call successors, (11145), 3559 states have call predecessors, (11145), 3532 states have return successors, (11265), 10879 states have call predecessors, (11265), 11145 states have call successors, (11265) [2022-07-20 02:24:42,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44200 states to 44200 states and 58561 transitions. [2022-07-20 02:24:43,197 INFO L78 Accepts]: Start accepts. Automaton has 44200 states and 58561 transitions. Word has length 251 [2022-07-20 02:24:43,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:24:43,198 INFO L495 AbstractCegarLoop]: Abstraction has 44200 states and 58561 transitions. [2022-07-20 02:24:43,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-20 02:24:43,198 INFO L276 IsEmpty]: Start isEmpty. Operand 44200 states and 58561 transitions. [2022-07-20 02:24:43,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-07-20 02:24:43,200 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:24:43,201 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 02:24:43,225 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Ended with exit code 0 [2022-07-20 02:24:43,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:24:43,401 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:24:43,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:24:43,402 INFO L85 PathProgramCache]: Analyzing trace with hash 51622210, now seen corresponding path program 1 times [2022-07-20 02:24:43,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:24:43,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [333831197] [2022-07-20 02:24:43,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:24:43,403 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:24:43,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:24:43,404 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 02:24:43,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-07-20 02:24:44,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:24:44,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 1573 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 02:24:44,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:24:44,697 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2022-07-20 02:24:44,697 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:24:44,698 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:24:44,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [333831197] [2022-07-20 02:24:44,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [333831197] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:24:44,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:24:44,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 02:24:44,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913721034] [2022-07-20 02:24:44,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:24:44,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 02:24:44,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:24:44,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 02:24:44,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 02:24:44,699 INFO L87 Difference]: Start difference. First operand 44200 states and 58561 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24)