./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.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 23f9845edcf139ee9434428d040789a6781b16714bf615b854712f008daec6fd --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 03:47:59,252 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 03:47:59,254 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 03:47:59,294 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 03:47:59,295 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 03:47:59,296 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 03:47:59,297 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 03:47:59,299 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 03:47:59,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 03:47:59,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 03:47:59,302 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 03:47:59,305 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 03:47:59,305 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 03:47:59,311 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 03:47:59,311 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 03:47:59,313 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 03:47:59,314 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 03:47:59,316 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 03:47:59,318 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 03:47:59,323 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 03:47:59,328 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 03:47:59,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 03:47:59,330 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 03:47:59,331 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 03:47:59,331 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 03:47:59,334 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 03:47:59,337 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 03:47:59,338 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 03:47:59,339 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 03:47:59,339 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 03:47:59,340 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 03:47:59,341 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 03:47:59,342 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 03:47:59,342 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 03:47:59,344 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 03:47:59,344 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 03:47:59,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 03:47:59,345 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 03:47:59,345 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 03:47:59,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 03:47:59,347 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 03:47:59,348 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 03:47:59,350 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-20 03:47:59,384 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 03:47:59,384 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 03:47:59,385 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 03:47:59,385 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 03:47:59,386 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 03:47:59,386 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 03:47:59,387 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 03:47:59,387 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 03:47:59,387 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 03:47:59,388 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 03:47:59,388 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 03:47:59,389 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 03:47:59,389 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 03:47:59,389 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 03:47:59,389 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 03:47:59,389 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 03:47:59,390 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 03:47:59,390 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 03:47:59,390 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 03:47:59,391 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 03:47:59,392 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 03:47:59,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 03:47:59,392 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 03:47:59,392 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 03:47:59,392 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 03:47:59,393 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 03:47:59,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 03:47:59,394 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 03:47:59,394 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 03:47:59,394 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 03:47:59,394 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23f9845edcf139ee9434428d040789a6781b16714bf615b854712f008daec6fd [2022-07-20 03:47:59,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 03:47:59,626 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 03:47:59,629 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 03:47:59,630 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 03:47:59,630 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 03:47:59,632 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2022-07-20 03:47:59,687 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/303c71f7b/602b3c098caa43009478592fe88019f3/FLAGf40f3ece4 [2022-07-20 03:48:00,362 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 03:48:00,362 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2022-07-20 03:48:00,409 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/303c71f7b/602b3c098caa43009478592fe88019f3/FLAGf40f3ece4 [2022-07-20 03:48:00,723 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/303c71f7b/602b3c098caa43009478592fe88019f3 [2022-07-20 03:48:00,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 03:48:00,728 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 03:48:00,729 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 03:48:00,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 03:48:00,732 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 03:48:00,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 03:48:00" (1/1) ... [2022-07-20 03:48:00,734 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6491533e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:48:00, skipping insertion in model container [2022-07-20 03:48:00,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 03:48:00" (1/1) ... [2022-07-20 03:48:00,740 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 03:48:00,877 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 03:48:02,736 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338234,338247] [2022-07-20 03:48:02,739 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338403,338416] [2022-07-20 03:48:02,743 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338570,338583] [2022-07-20 03:48:02,744 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338738,338751] [2022-07-20 03:48:02,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 03:48:02,817 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 03:48:03,011 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: tlphy_ctl = (unsigned int )tlphy_ctl & 49151U [7917] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1650) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1650) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-20 03:48:03,019 INFO L158 Benchmark]: Toolchain (without parser) took 2290.31ms. Allocated memory was 102.8MB in the beginning and 132.1MB in the end (delta: 29.4MB). Free memory was 56.1MB in the beginning and 58.1MB in the end (delta: -2.0MB). Peak memory consumption was 51.7MB. Max. memory is 16.1GB. [2022-07-20 03:48:03,020 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 102.8MB. Free memory was 57.5MB in the beginning and 57.4MB in the end (delta: 48.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 03:48:03,021 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2288.35ms. Allocated memory was 102.8MB in the beginning and 132.1MB in the end (delta: 29.4MB). Free memory was 55.9MB in the beginning and 58.1MB in the end (delta: -2.2MB). Peak memory consumption was 51.7MB. Max. memory is 16.1GB. [2022-07-20 03:48:03,023 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 102.8MB. Free memory was 57.5MB in the beginning and 57.4MB in the end (delta: 48.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2288.35ms. Allocated memory was 102.8MB in the beginning and 132.1MB in the end (delta: 29.4MB). Free memory was 55.9MB in the beginning and 58.1MB in the end (delta: -2.2MB). Peak memory consumption was 51.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: tlphy_ctl = (unsigned int )tlphy_ctl & 49151U [7917] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: tlphy_ctl = (unsigned int )tlphy_ctl & 49151U [7917]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.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 23f9845edcf139ee9434428d040789a6781b16714bf615b854712f008daec6fd --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 03:48:04,728 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 03:48:04,730 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 03:48:04,770 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 03:48:04,771 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 03:48:04,772 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 03:48:04,775 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 03:48:04,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 03:48:04,780 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 03:48:04,784 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 03:48:04,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 03:48:04,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 03:48:04,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 03:48:04,789 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 03:48:04,790 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 03:48:04,795 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 03:48:04,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 03:48:04,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 03:48:04,798 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 03:48:04,801 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 03:48:04,802 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 03:48:04,804 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 03:48:04,805 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 03:48:04,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 03:48:04,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 03:48:04,814 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 03:48:04,814 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 03:48:04,815 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 03:48:04,815 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 03:48:04,816 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 03:48:04,817 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 03:48:04,817 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 03:48:04,818 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 03:48:04,819 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 03:48:04,820 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 03:48:04,821 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 03:48:04,821 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 03:48:04,822 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 03:48:04,822 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 03:48:04,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 03:48:04,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 03:48:04,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 03:48:04,832 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-20 03:48:04,863 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 03:48:04,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 03:48:04,863 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 03:48:04,864 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 03:48:04,864 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 03:48:04,865 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 03:48:04,865 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 03:48:04,865 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 03:48:04,866 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 03:48:04,866 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 03:48:04,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 03:48:04,867 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 03:48:04,867 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 03:48:04,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 03:48:04,867 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-20 03:48:04,867 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-20 03:48:04,873 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-20 03:48:04,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 03:48:04,874 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 03:48:04,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 03:48:04,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 03:48:04,874 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 03:48:04,875 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 03:48:04,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 03:48:04,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 03:48:04,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 03:48:04,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 03:48:04,876 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-20 03:48:04,876 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-20 03:48:04,876 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 03:48:04,876 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 03:48:04,877 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 03:48:04,877 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-20 03:48:04,877 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23f9845edcf139ee9434428d040789a6781b16714bf615b854712f008daec6fd [2022-07-20 03:48:05,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 03:48:05,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 03:48:05,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 03:48:05,199 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 03:48:05,200 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 03:48:05,201 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2022-07-20 03:48:05,253 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fd7300bd/9ed3e2649a134dfeb64b69afe637427f/FLAG3a4d69f72 [2022-07-20 03:48:06,022 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 03:48:06,023 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2022-07-20 03:48:06,072 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fd7300bd/9ed3e2649a134dfeb64b69afe637427f/FLAG3a4d69f72 [2022-07-20 03:48:06,254 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fd7300bd/9ed3e2649a134dfeb64b69afe637427f [2022-07-20 03:48:06,256 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 03:48:06,258 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 03:48:06,260 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 03:48:06,260 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 03:48:06,263 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 03:48:06,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 03:48:06" (1/1) ... [2022-07-20 03:48:06,265 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be0ee1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:48:06, skipping insertion in model container [2022-07-20 03:48:06,265 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 03:48:06" (1/1) ... [2022-07-20 03:48:06,271 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 03:48:06,432 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 03:48:08,504 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338234,338247] [2022-07-20 03:48:08,507 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338403,338416] [2022-07-20 03:48:08,511 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338570,338583] [2022-07-20 03:48:08,512 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338738,338751] [2022-07-20 03:48:08,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 03:48:08,585 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-20 03:48:08,658 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 03:48:08,928 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338234,338247] [2022-07-20 03:48:08,929 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338403,338416] [2022-07-20 03:48:08,929 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338570,338583] [2022-07-20 03:48:08,929 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338738,338751] [2022-07-20 03:48:08,934 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 03:48:08,953 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 03:48:09,254 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338234,338247] [2022-07-20 03:48:09,255 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338403,338416] [2022-07-20 03:48:09,255 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338570,338583] [2022-07-20 03:48:09,256 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338738,338751] [2022-07-20 03:48:09,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 03:48:09,448 INFO L208 MainTranslator]: Completed translation [2022-07-20 03:48:09,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:48:09 WrapperNode [2022-07-20 03:48:09,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 03:48:09,450 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 03:48:09,450 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 03:48:09,451 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 03:48:09,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:48:09" (1/1) ... [2022-07-20 03:48:09,557 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:48:09" (1/1) ... [2022-07-20 03:48:09,704 INFO L137 Inliner]: procedures = 440, calls = 2260, calls flagged for inlining = 195, calls inlined = 179, statements flattened = 4697 [2022-07-20 03:48:09,705 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 03:48:09,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 03:48:09,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 03:48:09,705 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 03:48:09,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:48:09" (1/1) ... [2022-07-20 03:48:09,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:48:09" (1/1) ... [2022-07-20 03:48:09,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:48:09" (1/1) ... [2022-07-20 03:48:09,763 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:48:09" (1/1) ... [2022-07-20 03:48:09,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:48:09" (1/1) ... [2022-07-20 03:48:09,895 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:48:09" (1/1) ... [2022-07-20 03:48:09,921 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:48:09" (1/1) ... [2022-07-20 03:48:09,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 03:48:09,953 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 03:48:09,953 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 03:48:09,954 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 03:48:09,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:48:09" (1/1) ... [2022-07-20 03:48:09,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 03:48:09,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 03:48:09,980 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 03:48:10,010 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 03:48:10,026 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_resume [2022-07-20 03:48:10,027 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_resume [2022-07-20 03:48:10,027 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-20 03:48:10,027 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-20 03:48:10,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-20 03:48:10,027 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-20 03:48:10,028 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-20 03:48:10,028 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-20 03:48:10,028 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_write_reg [2022-07-20 03:48:10,028 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_write_reg [2022-07-20 03:48:10,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-20 03:48:10,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-20 03:48:10,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_3 [2022-07-20 03:48:10,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_3 [2022-07-20 03:48:10,029 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_read8 [2022-07-20 03:48:10,029 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_read8 [2022-07-20 03:48:10,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-20 03:48:10,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-20 03:48:10,030 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-20 03:48:10,031 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-20 03:48:10,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_63 [2022-07-20 03:48:10,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_63 [2022-07-20 03:48:10,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_tlan_priv [2022-07-20 03:48:10,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_tlan_priv [2022-07-20 03:48:10,032 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_read_and_clear_stats [2022-07-20 03:48:10,032 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_read_and_clear_stats [2022-07-20 03:48:10,032 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_sync [2022-07-20 03:48:10,032 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_sync [2022-07-20 03:48:10,033 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-20 03:48:10,033 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-20 03:48:10,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-20 03:48:10,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-20 03:48:10,033 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-20 03:48:10,033 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-20 03:48:10,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-20 03:48:10,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-20 03:48:10,034 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-20 03:48:10,034 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-20 03:48:10,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 03:48:10,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-20 03:48:10,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-20 03:48:10,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-20 03:48:10,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-20 03:48:10,036 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-20 03:48:10,037 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-20 03:48:10,037 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_reset_lists [2022-07-20 03:48:10,037 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_reset_lists [2022-07-20 03:48:10,037 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_close [2022-07-20 03:48:10,038 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_close [2022-07-20 03:48:10,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_65 [2022-07-20 03:48:10,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_65 [2022-07-20 03:48:10,038 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-20 03:48:10,038 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-20 03:48:10,038 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_print [2022-07-20 03:48:10,039 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_print [2022-07-20 03:48:10,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-07-20 03:48:10,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-07-20 03:48:10,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_tlan_priv [2022-07-20 03:48:10,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_tlan_priv [2022-07-20 03:48:10,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pci_unregister_driver [2022-07-20 03:48:10,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pci_unregister_driver [2022-07-20 03:48:10,040 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_probe1 [2022-07-20 03:48:10,040 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_probe1 [2022-07-20 03:48:10,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-20 03:48:10,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-20 03:48:10,041 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-20 03:48:10,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-20 03:48:10,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-20 03:48:10,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-20 03:48:10,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-20 03:48:10,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-20 03:48:10,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-20 03:48:10,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-20 03:48:10,042 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_timer [2022-07-20 03:48:10,042 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_timer [2022-07-20 03:48:10,043 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_timer [2022-07-20 03:48:10,043 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_timer [2022-07-20 03:48:10,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_3_2 [2022-07-20 03:48:10,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_3_2 [2022-07-20 03:48:10,044 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_stop [2022-07-20 03:48:10,044 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_stop [2022-07-20 03:48:10,044 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-20 03:48:10,044 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-20 03:48:10,044 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-20 03:48:10,044 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-20 03:48:10,044 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_remove_one [2022-07-20 03:48:10,045 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_remove_one [2022-07-20 03:48:10,045 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_get_skb [2022-07-20 03:48:10,045 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_get_skb [2022-07-20 03:48:10,045 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_send_byte [2022-07-20 03:48:10,045 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_send_byte [2022-07-20 03:48:10,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-20 03:48:10,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-20 03:48:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 03:48:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2022-07-20 03:48:10,046 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2022-07-20 03:48:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_poll [2022-07-20 03:48:10,046 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_poll [2022-07-20 03:48:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-07-20 03:48:10,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-07-20 03:48:10,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 03:48:10,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-20 03:48:10,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-20 03:48:10,050 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-20 03:48:10,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-20 03:48:10,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 03:48:10,051 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-20 03:48:10,051 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-20 03:48:10,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-20 03:48:10,052 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_free_lists [2022-07-20 03:48:10,052 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_free_lists [2022-07-20 03:48:10,052 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-20 03:48:10,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-20 03:48:10,056 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-20 03:48:10,056 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-20 03:48:10,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-20 03:48:10,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-20 03:48:10,057 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2022-07-20 03:48:10,057 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2022-07-20 03:48:10,057 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_store_skb [2022-07-20 03:48:10,057 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_store_skb [2022-07-20 03:48:10,057 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_tx_timeout [2022-07-20 03:48:10,058 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_tx_timeout [2022-07-20 03:48:10,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 03:48:10,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 03:48:10,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-20 03:48:10,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-20 03:48:10,058 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2022-07-20 03:48:10,058 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2022-07-20 03:48:10,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-20 03:48:10,059 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_power_up [2022-07-20 03:48:10,059 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_power_up [2022-07-20 03:48:10,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-20 03:48:10,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-20 03:48:10,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-20 03:48:10,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-20 03:48:10,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-20 03:48:10,060 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-20 03:48:10,060 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-20 03:48:10,060 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2022-07-20 03:48:10,060 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2022-07-20 03:48:10,060 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_handle_interrupt [2022-07-20 03:48:10,060 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_handle_interrupt [2022-07-20 03:48:10,061 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_start [2022-07-20 03:48:10,061 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_start [2022-07-20 03:48:10,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-20 03:48:10,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-20 03:48:10,062 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_finish_auto_neg [2022-07-20 03:48:10,062 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_finish_auto_neg [2022-07-20 03:48:10,062 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-20 03:48:10,062 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-20 03:48:10,062 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-20 03:48:10,062 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-20 03:48:10,063 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2022-07-20 03:48:10,063 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2022-07-20 03:48:10,063 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_start_link [2022-07-20 03:48:10,063 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_start_link [2022-07-20 03:48:10,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 03:48:10,063 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_multicast_list [2022-07-20 03:48:10,063 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_multicast_list [2022-07-20 03:48:10,063 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-20 03:48:10,064 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-20 03:48:10,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 03:48:10,064 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-20 03:48:10,064 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-20 03:48:10,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_8_2 [2022-07-20 03:48:10,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_8_2 [2022-07-20 03:48:10,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-20 03:48:10,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-20 03:48:10,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-20 03:48:10,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-20 03:48:10,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 03:48:10,065 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_print_list [2022-07-20 03:48:10,066 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_print_list [2022-07-20 03:48:10,066 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write16 [2022-07-20 03:48:10,066 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write16 [2022-07-20 03:48:10,067 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-07-20 03:48:10,067 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-07-20 03:48:10,067 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-20 03:48:10,067 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-20 03:48:10,067 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-20 03:48:10,068 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-20 03:48:10,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-20 03:48:10,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-20 03:48:10,068 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-07-20 03:48:10,068 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-07-20 03:48:10,106 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_finish_reset [2022-07-20 03:48:10,106 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_finish_reset [2022-07-20 03:48:10,106 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write32 [2022-07-20 03:48:10,106 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write32 [2022-07-20 03:48:10,106 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-20 03:48:10,106 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-20 03:48:10,106 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-20 03:48:10,107 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-20 03:48:10,107 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_mac [2022-07-20 03:48:10,107 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_mac [2022-07-20 03:48:10,107 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-07-20 03:48:10,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-07-20 03:48:10,107 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_send_start [2022-07-20 03:48:10,107 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_send_start [2022-07-20 03:48:10,107 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_read32 [2022-07-20 03:48:10,107 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_read32 [2022-07-20 03:48:10,107 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write8 [2022-07-20 03:48:10,107 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write8 [2022-07-20 03:48:10,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-20 03:48:10,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-20 03:48:10,107 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_power_down [2022-07-20 03:48:10,107 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_power_down [2022-07-20 03:48:10,107 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-20 03:48:10,107 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-20 03:48:10,107 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_reset_adapter [2022-07-20 03:48:10,107 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_reset_adapter [2022-07-20 03:48:10,108 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_send_data [2022-07-20 03:48:10,108 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_send_data [2022-07-20 03:48:10,108 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_reset [2022-07-20 03:48:10,108 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_reset [2022-07-20 03:48:10,108 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_read_reg [2022-07-20 03:48:10,108 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_read_reg [2022-07-20 03:48:10,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-20 03:48:10,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-20 03:48:10,108 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_open [2022-07-20 03:48:10,108 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_open [2022-07-20 03:48:10,108 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-20 03:48:10,108 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-20 03:48:10,108 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-20 03:48:10,108 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-20 03:48:10,108 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~TO~VOID [2022-07-20 03:48:10,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~TO~VOID [2022-07-20 03:48:10,108 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-07-20 03:48:10,108 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-07-20 03:48:10,108 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-07-20 03:48:10,109 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-07-20 03:48:10,109 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-07-20 03:48:10,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-20 03:48:10,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-20 03:48:10,109 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-07-20 03:48:10,109 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-07-20 03:48:10,109 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-07-20 03:48:10,109 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-07-20 03:48:10,911 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 03:48:10,913 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 03:48:22,269 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-20 03:48:45,307 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6942: assume 0bv64 == ~bvadd64(tlan_eisa_probe_~tmp___1~5#1.base, tlan_eisa_probe_~tmp___1~5#1.offset); [2022-07-20 03:48:45,307 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6942: assume !(0bv64 == ~bvadd64(tlan_eisa_probe_~tmp___1~5#1.base, tlan_eisa_probe_~tmp___1~5#1.offset)); [2022-07-20 03:48:45,307 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7042: assume ~bvsle64(tlan_eisa_probe_~ioaddr~0#1, 36863bv64); [2022-07-20 03:48:45,308 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7042: assume !~bvsle64(tlan_eisa_probe_~ioaddr~0#1, 36863bv64); [2022-07-20 03:48:45,308 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6976-2: SUMMARY for call tlan_eisa_probe_#t~ret340#1 := inb(~bvadd32(3264bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-07-20 03:48:45,308 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6976: assume 16bv32 == ~debug~0;havoc tlan_eisa_probe_#t~nondet339#1; [2022-07-20 03:48:45,308 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6976: assume !(16bv32 == ~debug~0); [2022-07-20 03:48:45,308 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7044: assume 0bv32 != ~bvand32(16bv32, ~debug~0); [2022-07-20 03:48:45,309 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7044: assume !(0bv32 != ~bvand32(16bv32, ~debug~0)); [2022-07-20 03:48:45,309 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947-1: tlan_eisa_probe_~tmp___2~2#1 := tlan_eisa_probe_#t~ret336#1;havoc tlan_eisa_probe_#t~ret336#1; [2022-07-20 03:48:45,309 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947: SUMMARY for call tlan_eisa_probe_#t~ret336#1 := inw(~bvadd32(3200bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-07-20 03:48:45,309 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7014: SUMMARY for call tlan_eisa_probe_#t~ret341#1 := tlan_probe1(0bv64, 0bv64, tlan_eisa_probe_~ioaddr~0#1, tlan_eisa_probe_~irq~0#1, 12bv32, 0bv64, 0bv64); srcloc: null [2022-07-20 03:48:45,309 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6949: assume 4366bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~tmp___2~2#1); [2022-07-20 03:48:45,309 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6949: assume !(4366bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~tmp___2~2#1)); [2022-07-20 03:48:45,309 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6983: tlan_eisa_probe_~tmp___4~0#1 := tlan_eisa_probe_#t~ret340#1;havoc tlan_eisa_probe_#t~ret340#1; [2022-07-20 03:48:45,310 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6951: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16bv64); srcloc: null [2022-07-20 03:48:45,310 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6918-1: assume 0bv32 != ~bvand32(16bv32, ~debug~0); [2022-07-20 03:48:45,310 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6918-1: assume !(0bv32 != ~bvand32(16bv32, ~debug~0)); [2022-07-20 03:48:45,310 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6986: assume 16bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2022-07-20 03:48:45,310 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6986: assume !(16bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1)); [2022-07-20 03:48:45,310 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6920-1: tlan_eisa_probe_~tmp~35#1 := tlan_eisa_probe_#t~ret330#1;havoc tlan_eisa_probe_#t~ret330#1;havoc tlan_eisa_probe_#t~nondet331#1; [2022-07-20 03:48:45,310 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6920: SUMMARY for call tlan_eisa_probe_#t~ret330#1 := inw(~bvadd32(3200bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-07-20 03:48:45,311 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6987: tlan_eisa_probe_~irq~0#1 := 5bv32; [2022-07-20 03:48:45,311 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7021: tlan_eisa_probe_~rc~2#1 := tlan_eisa_probe_#t~ret341#1;havoc tlan_eisa_probe_#t~ret341#1; [2022-07-20 03:48:45,311 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6990: assume 32bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2022-07-20 03:48:45,311 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6990: assume !(32bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1)); [2022-07-20 03:48:45,311 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6957-1: tlan_eisa_probe_~device_id~1#1 := tlan_eisa_probe_#t~ret337#1;havoc tlan_eisa_probe_#t~ret337#1; [2022-07-20 03:48:45,311 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6957: SUMMARY for call tlan_eisa_probe_#t~ret337#1 := inw(~bvadd32(3202bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-07-20 03:48:45,311 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6991: tlan_eisa_probe_~irq~0#1 := 9bv32; [2022-07-20 03:48:45,312 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6925-1: assume 0bv32 != ~bvand32(16bv32, ~debug~0);havoc tlan_eisa_probe_#t~nondet334#1; [2022-07-20 03:48:45,312 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6925-1: assume !(0bv32 != ~bvand32(16bv32, ~debug~0)); [2022-07-20 03:48:45,312 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6959: assume 8433bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~device_id~1#1) && 16625bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~device_id~1#1); [2022-07-20 03:48:45,312 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6959: assume !(8433bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~device_id~1#1) && 16625bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~device_id~1#1)); [2022-07-20 03:48:45,312 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6927-1: tlan_eisa_probe_~tmp___0~12#1 := tlan_eisa_probe_#t~ret332#1;havoc tlan_eisa_probe_#t~ret332#1;havoc tlan_eisa_probe_#t~nondet333#1; [2022-07-20 03:48:45,312 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6927: SUMMARY for call tlan_eisa_probe_#t~ret332#1 := inw(~bvadd32(3202bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-07-20 03:48:45,312 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6994: assume 64bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2022-07-20 03:48:45,313 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6994: assume !(64bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1)); [2022-07-20 03:48:45,313 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6961: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16bv64); srcloc: null [2022-07-20 03:48:45,313 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6995: tlan_eisa_probe_~irq~0#1 := 10bv32; [2022-07-20 03:48:45,313 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6998: assume 128bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2022-07-20 03:48:45,313 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6998: assume !(128bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1)); [2022-07-20 03:48:45,313 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6932-1: call tlan_eisa_probe_#t~ret335#1.base, tlan_eisa_probe_#t~ret335#1.offset := __request_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16bv64, ~#tlan_signature~0.base, ~#tlan_signature~0.offset, 0bv32);tlan_eisa_probe_~tmp___1~5#1.base, tlan_eisa_probe_~tmp___1~5#1.offset := tlan_eisa_probe_#t~ret335#1.base, tlan_eisa_probe_#t~ret335#1.offset;havoc tlan_eisa_probe_#t~ret335#1.base, tlan_eisa_probe_#t~ret335#1.offset; [2022-07-20 03:48:45,313 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6999: tlan_eisa_probe_~irq~0#1 := 11bv32; [2022-07-20 03:48:45,314 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6967-1: tlan_eisa_probe_~tmp___3~1#1 := tlan_eisa_probe_#t~ret338#1;havoc tlan_eisa_probe_#t~ret338#1; [2022-07-20 03:48:45,314 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6967: SUMMARY for call tlan_eisa_probe_#t~ret338#1 := inb(~bvadd32(3204bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-07-20 03:48:45,314 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7033-1: tlan_eisa_probe_~ioaddr~0#1 := ~bvadd64(4096bv64, tlan_eisa_probe_~ioaddr~0#1); [2022-07-20 03:48:45,314 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7002: assume 16bv32 == ~debug~0;havoc tlan_eisa_probe_#t~nondet342#1; [2022-07-20 03:48:45,314 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7002: assume !(16bv32 == ~debug~0); [2022-07-20 03:48:45,314 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6969: assume 1bv32 != ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___3~1#1); [2022-07-20 03:48:45,314 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6969: assume !(1bv32 != ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___3~1#1)); [2022-07-20 03:48:45,315 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6971-1: assume 16bv32 == ~debug~0;havoc tlan_eisa_probe_#t~nondet343#1; [2022-07-20 03:48:45,315 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6971-1: assume !(16bv32 == ~debug~0); [2022-07-20 03:48:45,315 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6971: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16bv64); srcloc: null [2022-07-20 03:48:45,413 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 03:48:45,438 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 03:48:45,439 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-20 03:48:45,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 03:48:45 BoogieIcfgContainer [2022-07-20 03:48:45,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 03:48:45,444 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 03:48:45,444 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 03:48:45,447 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 03:48:45,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 03:48:06" (1/3) ... [2022-07-20 03:48:45,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@174cb938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 03:48:45, skipping insertion in model container [2022-07-20 03:48:45,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:48:09" (2/3) ... [2022-07-20 03:48:45,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@174cb938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 03:48:45, skipping insertion in model container [2022-07-20 03:48:45,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 03:48:45" (3/3) ... [2022-07-20 03:48:45,450 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2022-07-20 03:48:45,462 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 03:48:45,462 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-20 03:48:45,550 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 03:48:45,562 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@4f1d4846, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@715e141 [2022-07-20 03:48:45,562 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-20 03:48:45,574 INFO L276 IsEmpty]: Start isEmpty. Operand has 1990 states, 1278 states have (on average 1.2519561815336464) internal successors, (1600), 1334 states have internal predecessors, (1600), 601 states have call successors, (601), 108 states have call predecessors, (601), 107 states have return successors, (597), 579 states have call predecessors, (597), 597 states have call successors, (597) [2022-07-20 03:48:45,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-20 03:48:45,585 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:48:45,586 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-07-20 03:48:45,586 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 03:48:45,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:48:45,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1354900798, now seen corresponding path program 1 times [2022-07-20 03:48:45,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:48:45,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [661012047] [2022-07-20 03:48:45,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:48:45,608 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:48:45,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:48:45,613 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 03:48:45,646 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 03:48:46,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:48:47,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 1419 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 03:48:47,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:48:47,120 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-20 03:48:47,121 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:48:47,121 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:48:47,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [661012047] [2022-07-20 03:48:47,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [661012047] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:48:47,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:48:47,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 03:48:47,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199229404] [2022-07-20 03:48:47,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:48:47,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 03:48:47,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:48:47,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 03:48:47,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:48:47,154 INFO L87 Difference]: Start difference. First operand has 1990 states, 1278 states have (on average 1.2519561815336464) internal successors, (1600), 1334 states have internal predecessors, (1600), 601 states have call successors, (601), 108 states have call predecessors, (601), 107 states have return successors, (597), 579 states have call predecessors, (597), 597 states have call successors, (597) Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-20 03:48:49,344 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 03:48:50,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:48:50,231 INFO L93 Difference]: Finished difference Result 5693 states and 8294 transitions. [2022-07-20 03:48:50,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 03:48:50,234 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 52 [2022-07-20 03:48:50,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:48:50,266 INFO L225 Difference]: With dead ends: 5693 [2022-07-20 03:48:50,266 INFO L226 Difference]: Without dead ends: 3696 [2022-07-20 03:48:50,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 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 03:48:50,300 INFO L413 NwaCegarLoop]: 3905 mSDtfsCounter, 2403 mSDsluCounter, 2692 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 30 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2403 SdHoareTripleChecker+Valid, 6597 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-20 03:48:50,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2403 Valid, 6597 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 88 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-07-20 03:48:50,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3696 states. [2022-07-20 03:48:50,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3696 to 3654. [2022-07-20 03:48:50,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3654 states, 2365 states have (on average 1.2312896405919662) internal successors, (2912), 2466 states have internal predecessors, (2912), 1080 states have call successors, (1080), 207 states have call predecessors, (1080), 206 states have return successors, (1086), 1042 states have call predecessors, (1086), 1077 states have call successors, (1086) [2022-07-20 03:48:50,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3654 states to 3654 states and 5078 transitions. [2022-07-20 03:48:50,673 INFO L78 Accepts]: Start accepts. Automaton has 3654 states and 5078 transitions. Word has length 52 [2022-07-20 03:48:50,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:48:50,674 INFO L495 AbstractCegarLoop]: Abstraction has 3654 states and 5078 transitions. [2022-07-20 03:48:50,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-20 03:48:50,674 INFO L276 IsEmpty]: Start isEmpty. Operand 3654 states and 5078 transitions. [2022-07-20 03:48:50,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-20 03:48:50,684 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:48:50,685 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-07-20 03:48:50,734 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-20 03:48:50,899 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 03:48:50,900 INFO L420 AbstractCegarLoop]: === Iteration 2 === 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 03:48:50,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:48:50,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1370419516, now seen corresponding path program 1 times [2022-07-20 03:48:50,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:48:50,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1852004693] [2022-07-20 03:48:50,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:48:50,904 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:48:50,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:48:50,906 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 03:48:50,949 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 03:48:52,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:48:52,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 1419 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 03:48:52,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:48:52,970 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-20 03:48:52,971 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:48:52,971 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:48:52,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1852004693] [2022-07-20 03:48:52,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1852004693] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:48:52,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:48:52,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 03:48:52,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882855406] [2022-07-20 03:48:52,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:48:52,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 03:48:52,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:48:52,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 03:48:52,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 03:48:52,974 INFO L87 Difference]: Start difference. First operand 3654 states and 5078 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-20 03:48:53,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:48:53,362 INFO L93 Difference]: Finished difference Result 3660 states and 5083 transitions. [2022-07-20 03:48:53,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 03:48:53,363 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 52 [2022-07-20 03:48:53,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:48:53,386 INFO L225 Difference]: With dead ends: 3660 [2022-07-20 03:48:53,386 INFO L226 Difference]: Without dead ends: 3658 [2022-07-20 03:48:53,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-20 03:48:53,389 INFO L413 NwaCegarLoop]: 2765 mSDtfsCounter, 2735 mSDsluCounter, 5518 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2736 SdHoareTripleChecker+Valid, 8283 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 03:48:53,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2736 Valid, 8283 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 03:48:53,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3658 states. [2022-07-20 03:48:53,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3658 to 3658. [2022-07-20 03:48:53,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3658 states, 2368 states have (on average 1.2309966216216217) internal successors, (2915), 2469 states have internal predecessors, (2915), 1080 states have call successors, (1080), 208 states have call predecessors, (1080), 207 states have return successors, (1086), 1042 states have call predecessors, (1086), 1077 states have call successors, (1086) [2022-07-20 03:48:53,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3658 states to 3658 states and 5081 transitions. [2022-07-20 03:48:53,629 INFO L78 Accepts]: Start accepts. Automaton has 3658 states and 5081 transitions. Word has length 52 [2022-07-20 03:48:53,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:48:53,630 INFO L495 AbstractCegarLoop]: Abstraction has 3658 states and 5081 transitions. [2022-07-20 03:48:53,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-20 03:48:53,630 INFO L276 IsEmpty]: Start isEmpty. Operand 3658 states and 5081 transitions. [2022-07-20 03:48:53,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-20 03:48:53,634 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:48:53,634 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-07-20 03:48:53,685 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 03:48:53,847 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 03:48:53,847 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 03:48:53,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:48:53,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1181643244, now seen corresponding path program 1 times [2022-07-20 03:48:53,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:48:53,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1204294525] [2022-07-20 03:48:53,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:48:53,850 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:48:53,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:48:53,853 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 03:48:53,854 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 03:48:55,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:48:55,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 1426 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 03:48:55,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:48:55,947 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-20 03:48:55,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 03:48:56,360 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-20 03:48:56,360 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:48:56,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1204294525] [2022-07-20 03:48:56,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1204294525] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 03:48:56,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 03:48:56,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 03:48:56,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861112698] [2022-07-20 03:48:56,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:48:56,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 03:48:56,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:48:56,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 03:48:56,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 03:48:56,361 INFO L87 Difference]: Start difference. First operand 3658 states and 5081 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-20 03:48:56,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:48:56,791 INFO L93 Difference]: Finished difference Result 3664 states and 5086 transitions. [2022-07-20 03:48:56,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 03:48:56,792 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 57 [2022-07-20 03:48:56,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:48:56,811 INFO L225 Difference]: With dead ends: 3664 [2022-07-20 03:48:56,812 INFO L226 Difference]: Without dead ends: 3662 [2022-07-20 03:48:56,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 107 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 03:48:56,819 INFO L413 NwaCegarLoop]: 2768 mSDtfsCounter, 2736 mSDsluCounter, 5517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2746 SdHoareTripleChecker+Valid, 8285 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 03:48:56,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2746 Valid, 8285 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 03:48:56,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3662 states. [2022-07-20 03:48:56,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3662 to 3662. [2022-07-20 03:48:56,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3662 states, 2371 states have (on average 1.230704344158583) internal successors, (2918), 2472 states have internal predecessors, (2918), 1080 states have call successors, (1080), 209 states have call predecessors, (1080), 208 states have return successors, (1086), 1042 states have call predecessors, (1086), 1077 states have call successors, (1086) [2022-07-20 03:48:57,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3662 states to 3662 states and 5084 transitions. [2022-07-20 03:48:57,008 INFO L78 Accepts]: Start accepts. Automaton has 3662 states and 5084 transitions. Word has length 57 [2022-07-20 03:48:57,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:48:57,010 INFO L495 AbstractCegarLoop]: Abstraction has 3662 states and 5084 transitions. [2022-07-20 03:48:57,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-20 03:48:57,010 INFO L276 IsEmpty]: Start isEmpty. Operand 3662 states and 5084 transitions. [2022-07-20 03:48:57,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-20 03:48:57,012 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:48:57,012 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 03:48:57,049 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 03:48:57,235 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 03:48:57,236 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 03:48:57,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:48:57,236 INFO L85 PathProgramCache]: Analyzing trace with hash -160876412, now seen corresponding path program 1 times [2022-07-20 03:48:57,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:48:57,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1864036531] [2022-07-20 03:48:57,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:48:57,239 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:48:57,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:48:57,241 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 03:48:57,242 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 03:48:58,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:48:58,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 1433 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 03:48:58,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:48:59,255 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-20 03:48:59,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 03:48:59,663 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-20 03:48:59,664 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:48:59,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1864036531] [2022-07-20 03:48:59,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1864036531] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 03:48:59,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 03:48:59,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 03:48:59,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158296577] [2022-07-20 03:48:59,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:48:59,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 03:48:59,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:48:59,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 03:48:59,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 03:48:59,665 INFO L87 Difference]: Start difference. First operand 3662 states and 5084 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-20 03:49:00,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:49:00,093 INFO L93 Difference]: Finished difference Result 3668 states and 5089 transitions. [2022-07-20 03:49:00,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 03:49:00,094 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2022-07-20 03:49:00,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:49:00,111 INFO L225 Difference]: With dead ends: 3668 [2022-07-20 03:49:00,112 INFO L226 Difference]: Without dead ends: 3666 [2022-07-20 03:49:00,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 117 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 03:49:00,114 INFO L413 NwaCegarLoop]: 2768 mSDtfsCounter, 2736 mSDsluCounter, 5517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2745 SdHoareTripleChecker+Valid, 8285 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 03:49:00,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2745 Valid, 8285 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 03:49:00,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3666 states. [2022-07-20 03:49:00,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3666 to 3666. [2022-07-20 03:49:00,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3666 states, 2374 states have (on average 1.2304128053917438) internal successors, (2921), 2475 states have internal predecessors, (2921), 1080 states have call successors, (1080), 210 states have call predecessors, (1080), 209 states have return successors, (1086), 1042 states have call predecessors, (1086), 1077 states have call successors, (1086) [2022-07-20 03:49:00,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3666 states to 3666 states and 5087 transitions. [2022-07-20 03:49:00,283 INFO L78 Accepts]: Start accepts. Automaton has 3666 states and 5087 transitions. Word has length 62 [2022-07-20 03:49:00,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:49:00,284 INFO L495 AbstractCegarLoop]: Abstraction has 3666 states and 5087 transitions. [2022-07-20 03:49:00,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-20 03:49:00,285 INFO L276 IsEmpty]: Start isEmpty. Operand 3666 states and 5087 transitions. [2022-07-20 03:49:00,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-20 03:49:00,287 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:49:00,287 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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] [2022-07-20 03:49:00,326 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 03:49:00,503 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 03:49:00,504 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 03:49:00,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:49:00,504 INFO L85 PathProgramCache]: Analyzing trace with hash -16274476, now seen corresponding path program 1 times [2022-07-20 03:49:00,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:49:00,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1105633684] [2022-07-20 03:49:00,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:49:00,506 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:49:00,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:49:00,508 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 03:49:00,510 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 03:49:01,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:49:01,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 1440 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 03:49:01,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:49:02,490 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-20 03:49:02,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 03:49:02,861 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-20 03:49:02,862 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:49:02,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1105633684] [2022-07-20 03:49:02,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1105633684] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 03:49:02,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 03:49:02,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 03:49:02,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382279835] [2022-07-20 03:49:02,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:49:02,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 03:49:02,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:49:02,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 03:49:02,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 03:49:02,863 INFO L87 Difference]: Start difference. First operand 3666 states and 5087 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-20 03:49:03,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:49:03,259 INFO L93 Difference]: Finished difference Result 3672 states and 5092 transitions. [2022-07-20 03:49:03,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 03:49:03,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 67 [2022-07-20 03:49:03,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:49:03,279 INFO L225 Difference]: With dead ends: 3672 [2022-07-20 03:49:03,279 INFO L226 Difference]: Without dead ends: 3670 [2022-07-20 03:49:03,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 127 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 03:49:03,282 INFO L413 NwaCegarLoop]: 2768 mSDtfsCounter, 2736 mSDsluCounter, 5517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2744 SdHoareTripleChecker+Valid, 8285 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 03:49:03,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2744 Valid, 8285 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 03:49:03,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3670 states. [2022-07-20 03:49:03,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3670 to 3670. [2022-07-20 03:49:03,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3670 states, 2377 states have (on average 1.2301220025241901) internal successors, (2924), 2478 states have internal predecessors, (2924), 1080 states have call successors, (1080), 211 states have call predecessors, (1080), 210 states have return successors, (1086), 1042 states have call predecessors, (1086), 1077 states have call successors, (1086) [2022-07-20 03:49:03,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3670 states to 3670 states and 5090 transitions. [2022-07-20 03:49:03,474 INFO L78 Accepts]: Start accepts. Automaton has 3670 states and 5090 transitions. Word has length 67 [2022-07-20 03:49:03,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:49:03,474 INFO L495 AbstractCegarLoop]: Abstraction has 3670 states and 5090 transitions. [2022-07-20 03:49:03,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-20 03:49:03,475 INFO L276 IsEmpty]: Start isEmpty. Operand 3670 states and 5090 transitions. [2022-07-20 03:49:03,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-20 03:49:03,476 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:49:03,476 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 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] [2022-07-20 03:49:03,511 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-20 03:49:03,695 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 03:49:03,695 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 03:49:03,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:49:03,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1205869921, now seen corresponding path program 1 times [2022-07-20 03:49:03,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:49:03,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [666105472] [2022-07-20 03:49:03,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:49:03,697 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:49:03,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:49:03,699 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 03:49:03,700 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 03:49:04,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:49:04,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 1486 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-20 03:49:04,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:49:06,158 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-20 03:49:06,158 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 03:49:07,559 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-07-20 03:49:07,559 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:49:07,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [666105472] [2022-07-20 03:49:07,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [666105472] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 03:49:07,560 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 03:49:07,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 19 [2022-07-20 03:49:07,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984311316] [2022-07-20 03:49:07,560 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 03:49:07,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-20 03:49:07,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:49:07,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-20 03:49:07,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-07-20 03:49:07,561 INFO L87 Difference]: Start difference. First operand 3670 states and 5090 transitions. Second operand has 19 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 17 states have internal predecessors, (58), 6 states have call successors, (21), 2 states have call predecessors, (21), 5 states have return successors, (20), 7 states have call predecessors, (20), 6 states have call successors, (20) [2022-07-20 03:49:13,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:49:13,818 INFO L93 Difference]: Finished difference Result 5710 states and 7885 transitions. [2022-07-20 03:49:13,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-20 03:49:13,819 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 17 states have internal predecessors, (58), 6 states have call successors, (21), 2 states have call predecessors, (21), 5 states have return successors, (20), 7 states have call predecessors, (20), 6 states have call successors, (20) Word has length 86 [2022-07-20 03:49:13,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:49:13,841 INFO L225 Difference]: With dead ends: 5710 [2022-07-20 03:49:13,842 INFO L226 Difference]: Without dead ends: 3707 [2022-07-20 03:49:13,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=194, Invalid=928, Unknown=0, NotChecked=0, Total=1122 [2022-07-20 03:49:13,858 INFO L413 NwaCegarLoop]: 2731 mSDtfsCounter, 156 mSDsluCounter, 40718 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 43449 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-07-20 03:49:13,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 43449 Invalid, 869 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [79 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-07-20 03:49:13,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3707 states. [2022-07-20 03:49:13,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3707 to 3689. [2022-07-20 03:49:14,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3689 states, 2392 states have (on average 1.2286789297658862) internal successors, (2939), 2493 states have internal predecessors, (2939), 1084 states have call successors, (1084), 211 states have call predecessors, (1084), 210 states have return successors, (1090), 1046 states have call predecessors, (1090), 1081 states have call successors, (1090) [2022-07-20 03:49:14,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3689 states to 3689 states and 5113 transitions. [2022-07-20 03:49:14,026 INFO L78 Accepts]: Start accepts. Automaton has 3689 states and 5113 transitions. Word has length 86 [2022-07-20 03:49:14,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:49:14,026 INFO L495 AbstractCegarLoop]: Abstraction has 3689 states and 5113 transitions. [2022-07-20 03:49:14,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 17 states have internal predecessors, (58), 6 states have call successors, (21), 2 states have call predecessors, (21), 5 states have return successors, (20), 7 states have call predecessors, (20), 6 states have call successors, (20) [2022-07-20 03:49:14,027 INFO L276 IsEmpty]: Start isEmpty. Operand 3689 states and 5113 transitions. [2022-07-20 03:49:14,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-20 03:49:14,027 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:49:14,028 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 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] [2022-07-20 03:49:14,073 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 03:49:14,251 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 03:49:14,251 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 03:49:14,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:49:14,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1863967300, now seen corresponding path program 1 times [2022-07-20 03:49:14,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:49:14,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [228389773] [2022-07-20 03:49:14,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:49:14,254 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:49:14,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:49:14,256 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 03:49:14,258 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 03:49:15,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:49:15,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 1447 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 03:49:15,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:49:16,485 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-07-20 03:49:16,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 03:49:16,921 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-07-20 03:49:16,921 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:49:16,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [228389773] [2022-07-20 03:49:16,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [228389773] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 03:49:16,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 03:49:16,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 03:49:16,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829139423] [2022-07-20 03:49:16,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:49:16,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 03:49:16,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:49:16,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 03:49:16,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 03:49:16,923 INFO L87 Difference]: Start difference. First operand 3689 states and 5113 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-20 03:49:17,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:49:17,324 INFO L93 Difference]: Finished difference Result 3695 states and 5118 transitions. [2022-07-20 03:49:17,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 03:49:17,325 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 72 [2022-07-20 03:49:17,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:49:17,364 INFO L225 Difference]: With dead ends: 3695 [2022-07-20 03:49:17,365 INFO L226 Difference]: Without dead ends: 3693 [2022-07-20 03:49:17,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 03:49:17,368 INFO L413 NwaCegarLoop]: 2768 mSDtfsCounter, 2736 mSDsluCounter, 5517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2743 SdHoareTripleChecker+Valid, 8285 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 03:49:17,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2743 Valid, 8285 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 03:49:17,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3693 states. [2022-07-20 03:49:17,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3693 to 3693. [2022-07-20 03:49:17,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3693 states, 2395 states have (on average 1.22839248434238) internal successors, (2942), 2496 states have internal predecessors, (2942), 1084 states have call successors, (1084), 212 states have call predecessors, (1084), 211 states have return successors, (1090), 1046 states have call predecessors, (1090), 1081 states have call successors, (1090) [2022-07-20 03:49:17,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3693 states to 3693 states and 5116 transitions. [2022-07-20 03:49:17,533 INFO L78 Accepts]: Start accepts. Automaton has 3693 states and 5116 transitions. Word has length 72 [2022-07-20 03:49:17,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:49:17,533 INFO L495 AbstractCegarLoop]: Abstraction has 3693 states and 5116 transitions. [2022-07-20 03:49:17,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-20 03:49:17,534 INFO L276 IsEmpty]: Start isEmpty. Operand 3693 states and 5116 transitions. [2022-07-20 03:49:17,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-20 03:49:17,539 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:49:17,539 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 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] [2022-07-20 03:49:17,578 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 03:49:17,758 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 03:49:17,759 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 03:49:17,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:49:17,759 INFO L85 PathProgramCache]: Analyzing trace with hash 523585940, now seen corresponding path program 1 times [2022-07-20 03:49:17,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:49:17,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [381024775] [2022-07-20 03:49:17,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:49:17,761 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:49:17,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:49:17,762 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 03:49:17,763 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 03:49:18,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:49:18,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 1454 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 03:49:18,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:49:19,685 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-20 03:49:19,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 03:49:20,102 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-20 03:49:20,102 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:49:20,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [381024775] [2022-07-20 03:49:20,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [381024775] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 03:49:20,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 03:49:20,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 03:49:20,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068208885] [2022-07-20 03:49:20,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:49:20,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 03:49:20,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:49:20,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 03:49:20,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 03:49:20,104 INFO L87 Difference]: Start difference. First operand 3693 states and 5116 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-20 03:49:20,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:49:20,507 INFO L93 Difference]: Finished difference Result 3699 states and 5121 transitions. [2022-07-20 03:49:20,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 03:49:20,508 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 77 [2022-07-20 03:49:20,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:49:20,525 INFO L225 Difference]: With dead ends: 3699 [2022-07-20 03:49:20,525 INFO L226 Difference]: Without dead ends: 3697 [2022-07-20 03:49:20,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 147 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 03:49:20,527 INFO L413 NwaCegarLoop]: 2768 mSDtfsCounter, 2736 mSDsluCounter, 5517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2742 SdHoareTripleChecker+Valid, 8285 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 03:49:20,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2742 Valid, 8285 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 03:49:20,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3697 states. [2022-07-20 03:49:20,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3697 to 3697. [2022-07-20 03:49:20,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3697 states, 2398 states have (on average 1.2281067556296914) internal successors, (2945), 2499 states have internal predecessors, (2945), 1084 states have call successors, (1084), 213 states have call predecessors, (1084), 212 states have return successors, (1090), 1046 states have call predecessors, (1090), 1081 states have call successors, (1090) [2022-07-20 03:49:20,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3697 states to 3697 states and 5119 transitions. [2022-07-20 03:49:20,700 INFO L78 Accepts]: Start accepts. Automaton has 3697 states and 5119 transitions. Word has length 77 [2022-07-20 03:49:20,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:49:20,702 INFO L495 AbstractCegarLoop]: Abstraction has 3697 states and 5119 transitions. [2022-07-20 03:49:20,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-20 03:49:20,703 INFO L276 IsEmpty]: Start isEmpty. Operand 3697 states and 5119 transitions. [2022-07-20 03:49:20,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-20 03:49:20,704 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:49:20,704 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 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] [2022-07-20 03:49:20,752 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 03:49:20,919 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 03:49:20,920 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 03:49:20,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:49:20,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1815933948, now seen corresponding path program 1 times [2022-07-20 03:49:20,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:49:20,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1502143146] [2022-07-20 03:49:20,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:49:20,921 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:49:20,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:49:20,923 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 03:49:20,923 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 03:49:22,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:49:22,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 1461 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 03:49:22,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:49:23,038 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-20 03:49:23,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 03:49:23,459 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-20 03:49:23,459 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:49:23,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1502143146] [2022-07-20 03:49:23,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1502143146] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 03:49:23,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 03:49:23,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 03:49:23,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563205461] [2022-07-20 03:49:23,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:49:23,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 03:49:23,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:49:23,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 03:49:23,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 03:49:23,460 INFO L87 Difference]: Start difference. First operand 3697 states and 5119 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-20 03:49:23,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:49:23,996 INFO L93 Difference]: Finished difference Result 6818 states and 9765 transitions. [2022-07-20 03:49:23,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 03:49:23,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 82 [2022-07-20 03:49:23,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:49:24,026 INFO L225 Difference]: With dead ends: 6818 [2022-07-20 03:49:24,027 INFO L226 Difference]: Without dead ends: 6816 [2022-07-20 03:49:24,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 157 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 03:49:24,032 INFO L413 NwaCegarLoop]: 3663 mSDtfsCounter, 2360 mSDsluCounter, 10089 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2365 SdHoareTripleChecker+Valid, 13752 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 03:49:24,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2365 Valid, 13752 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 03:49:24,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6816 states. [2022-07-20 03:49:24,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6816 to 6802. [2022-07-20 03:49:24,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6802 states, 4401 states have (on average 1.2251760963417404) internal successors, (5392), 4598 states have internal predecessors, (5392), 1988 states have call successors, (1988), 422 states have call predecessors, (1988), 410 states have return successors, (2372), 1886 states have call predecessors, (2372), 1982 states have call successors, (2372) [2022-07-20 03:49:24,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6802 states to 6802 states and 9752 transitions. [2022-07-20 03:49:24,399 INFO L78 Accepts]: Start accepts. Automaton has 6802 states and 9752 transitions. Word has length 82 [2022-07-20 03:49:24,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:49:24,399 INFO L495 AbstractCegarLoop]: Abstraction has 6802 states and 9752 transitions. [2022-07-20 03:49:24,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-20 03:49:24,400 INFO L276 IsEmpty]: Start isEmpty. Operand 6802 states and 9752 transitions. [2022-07-20 03:49:24,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-20 03:49:24,432 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:49:24,432 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 3, 3, 3, 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] [2022-07-20 03:49:24,477 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 03:49:24,633 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 03:49:24,633 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 03:49:24,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:49:24,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1162188972, now seen corresponding path program 1 times [2022-07-20 03:49:24,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:49:24,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2127139752] [2022-07-20 03:49:24,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:49:24,636 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:49:24,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:49:24,637 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 03:49:24,679 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 03:49:25,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:49:25,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 1468 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 03:49:25,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:49:26,813 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-20 03:49:26,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 03:49:27,307 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-20 03:49:27,307 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:49:27,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2127139752] [2022-07-20 03:49:27,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2127139752] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 03:49:27,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 03:49:27,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 03:49:27,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307372477] [2022-07-20 03:49:27,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:49:27,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 03:49:27,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:49:27,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 03:49:27,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 03:49:27,309 INFO L87 Difference]: Start difference. First operand 6802 states and 9752 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-20 03:49:27,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:49:27,833 INFO L93 Difference]: Finished difference Result 6812 states and 9761 transitions. [2022-07-20 03:49:27,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 03:49:27,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 87 [2022-07-20 03:49:27,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:49:27,868 INFO L225 Difference]: With dead ends: 6812 [2022-07-20 03:49:27,869 INFO L226 Difference]: Without dead ends: 6810 [2022-07-20 03:49:27,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 03:49:27,876 INFO L413 NwaCegarLoop]: 2768 mSDtfsCounter, 2736 mSDsluCounter, 5517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2740 SdHoareTripleChecker+Valid, 8285 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 03:49:27,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2740 Valid, 8285 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 03:49:27,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6810 states. [2022-07-20 03:49:28,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6810 to 6810. [2022-07-20 03:49:28,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6810 states, 4407 states have (on average 1.2248695257544815) internal successors, (5398), 4604 states have internal predecessors, (5398), 1988 states have call successors, (1988), 424 states have call predecessors, (1988), 412 states have return successors, (2372), 1886 states have call predecessors, (2372), 1982 states have call successors, (2372) [2022-07-20 03:49:28,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6810 states to 6810 states and 9758 transitions. [2022-07-20 03:49:28,276 INFO L78 Accepts]: Start accepts. Automaton has 6810 states and 9758 transitions. Word has length 87 [2022-07-20 03:49:28,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:49:28,276 INFO L495 AbstractCegarLoop]: Abstraction has 6810 states and 9758 transitions. [2022-07-20 03:49:28,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-20 03:49:28,277 INFO L276 IsEmpty]: Start isEmpty. Operand 6810 states and 9758 transitions. [2022-07-20 03:49:28,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-20 03:49:28,278 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:49:28,278 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 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] [2022-07-20 03:49:28,320 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 03:49:28,503 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 03:49:28,503 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 03:49:28,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:49:28,504 INFO L85 PathProgramCache]: Analyzing trace with hash 667203012, now seen corresponding path program 1 times [2022-07-20 03:49:28,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:49:28,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [149567294] [2022-07-20 03:49:28,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:49:28,506 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:49:28,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:49:28,512 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 03:49:28,514 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 03:49:29,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:49:29,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 1475 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 03:49:29,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:49:30,840 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-07-20 03:49:30,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 03:49:31,306 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-07-20 03:49:31,306 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:49:31,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [149567294] [2022-07-20 03:49:31,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [149567294] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 03:49:31,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 03:49:31,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 03:49:31,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531644365] [2022-07-20 03:49:31,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:49:31,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 03:49:31,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:49:31,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 03:49:31,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 03:49:31,308 INFO L87 Difference]: Start difference. First operand 6810 states and 9758 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-20 03:49:31,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:49:31,786 INFO L93 Difference]: Finished difference Result 6820 states and 9767 transitions. [2022-07-20 03:49:31,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 03:49:31,787 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 92 [2022-07-20 03:49:31,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:49:31,822 INFO L225 Difference]: With dead ends: 6820 [2022-07-20 03:49:31,823 INFO L226 Difference]: Without dead ends: 6818 [2022-07-20 03:49:31,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 177 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 03:49:31,830 INFO L413 NwaCegarLoop]: 2768 mSDtfsCounter, 2736 mSDsluCounter, 5517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2739 SdHoareTripleChecker+Valid, 8285 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 03:49:31,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2739 Valid, 8285 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 03:49:31,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6818 states. [2022-07-20 03:49:32,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6818 to 6818. [2022-07-20 03:49:32,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6818 states, 4413 states have (on average 1.224563788805801) internal successors, (5404), 4610 states have internal predecessors, (5404), 1988 states have call successors, (1988), 426 states have call predecessors, (1988), 414 states have return successors, (2372), 1886 states have call predecessors, (2372), 1982 states have call successors, (2372) [2022-07-20 03:49:32,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6818 states to 6818 states and 9764 transitions. [2022-07-20 03:49:32,262 INFO L78 Accepts]: Start accepts. Automaton has 6818 states and 9764 transitions. Word has length 92 [2022-07-20 03:49:32,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:49:32,262 INFO L495 AbstractCegarLoop]: Abstraction has 6818 states and 9764 transitions. [2022-07-20 03:49:32,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-20 03:49:32,263 INFO L276 IsEmpty]: Start isEmpty. Operand 6818 states and 9764 transitions. [2022-07-20 03:49:32,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-20 03:49:32,265 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:49:32,265 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 3, 3, 3, 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] [2022-07-20 03:49:32,310 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 03:49:32,479 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 03:49:32,480 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 03:49:32,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:49:32,480 INFO L85 PathProgramCache]: Analyzing trace with hash 708248852, now seen corresponding path program 1 times [2022-07-20 03:49:32,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:49:32,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2063326089] [2022-07-20 03:49:32,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:49:32,482 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:49:32,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:49:32,484 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 03:49:32,486 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 03:49:33,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:49:33,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 1482 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 03:49:33,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:49:34,856 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-07-20 03:49:34,857 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 03:49:35,341 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-07-20 03:49:35,342 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:49:35,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2063326089] [2022-07-20 03:49:35,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2063326089] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 03:49:35,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 03:49:35,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 03:49:35,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655187889] [2022-07-20 03:49:35,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:49:35,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 03:49:35,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:49:35,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 03:49:35,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 03:49:35,344 INFO L87 Difference]: Start difference. First operand 6818 states and 9764 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-20 03:49:35,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:49:35,905 INFO L93 Difference]: Finished difference Result 6828 states and 9773 transitions. [2022-07-20 03:49:35,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 03:49:35,905 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 97 [2022-07-20 03:49:35,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:49:35,937 INFO L225 Difference]: With dead ends: 6828 [2022-07-20 03:49:35,937 INFO L226 Difference]: Without dead ends: 6826 [2022-07-20 03:49:35,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 03:49:35,945 INFO L413 NwaCegarLoop]: 2768 mSDtfsCounter, 2736 mSDsluCounter, 5517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2738 SdHoareTripleChecker+Valid, 8285 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 03:49:35,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2738 Valid, 8285 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 03:49:35,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6826 states. [2022-07-20 03:49:36,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6826 to 6826. [2022-07-20 03:49:36,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6826 states, 4419 states have (on average 1.2242588821000226) internal successors, (5410), 4616 states have internal predecessors, (5410), 1988 states have call successors, (1988), 428 states have call predecessors, (1988), 416 states have return successors, (2372), 1886 states have call predecessors, (2372), 1982 states have call successors, (2372) [2022-07-20 03:49:36,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6826 states to 6826 states and 9770 transitions. [2022-07-20 03:49:36,401 INFO L78 Accepts]: Start accepts. Automaton has 6826 states and 9770 transitions. Word has length 97 [2022-07-20 03:49:36,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:49:36,401 INFO L495 AbstractCegarLoop]: Abstraction has 6826 states and 9770 transitions. [2022-07-20 03:49:36,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-20 03:49:36,402 INFO L276 IsEmpty]: Start isEmpty. Operand 6826 states and 9770 transitions. [2022-07-20 03:49:36,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-20 03:49:36,403 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:49:36,403 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 3, 3, 3, 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] [2022-07-20 03:49:36,431 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 03:49:36,604 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 03:49:36,604 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 03:49:36,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:49:36,605 INFO L85 PathProgramCache]: Analyzing trace with hash 914284420, now seen corresponding path program 1 times [2022-07-20 03:49:36,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:49:36,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [33626579] [2022-07-20 03:49:36,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:49:36,607 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:49:36,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:49:36,608 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 03:49:36,610 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 03:49:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:49:37,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 1489 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 03:49:37,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:49:39,153 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-07-20 03:49:39,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 03:49:39,692 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-07-20 03:49:39,693 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:49:39,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [33626579] [2022-07-20 03:49:39,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [33626579] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 03:49:39,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 03:49:39,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 03:49:39,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496239045] [2022-07-20 03:49:39,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:49:39,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 03:49:39,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:49:39,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 03:49:39,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 03:49:39,695 INFO L87 Difference]: Start difference. First operand 6826 states and 9770 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-20 03:49:40,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:49:40,204 INFO L93 Difference]: Finished difference Result 6836 states and 9779 transitions. [2022-07-20 03:49:40,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 03:49:40,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 102 [2022-07-20 03:49:40,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:49:40,235 INFO L225 Difference]: With dead ends: 6836 [2022-07-20 03:49:40,235 INFO L226 Difference]: Without dead ends: 6832 [2022-07-20 03:49:40,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 03:49:40,241 INFO L413 NwaCegarLoop]: 2768 mSDtfsCounter, 2736 mSDsluCounter, 5517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2737 SdHoareTripleChecker+Valid, 8285 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 03:49:40,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2737 Valid, 8285 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 03:49:40,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6832 states. [2022-07-20 03:49:40,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6832 to 6832. [2022-07-20 03:49:40,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6832 states, 4424 states have (on average 1.2237793851717902) internal successors, (5414), 4620 states have internal predecessors, (5414), 1988 states have call successors, (1988), 430 states have call predecessors, (1988), 417 states have return successors, (2372), 1886 states have call predecessors, (2372), 1982 states have call successors, (2372) [2022-07-20 03:49:40,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6832 states to 6832 states and 9774 transitions. [2022-07-20 03:49:40,651 INFO L78 Accepts]: Start accepts. Automaton has 6832 states and 9774 transitions. Word has length 102 [2022-07-20 03:49:40,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:49:40,653 INFO L495 AbstractCegarLoop]: Abstraction has 6832 states and 9774 transitions. [2022-07-20 03:49:40,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-20 03:49:40,653 INFO L276 IsEmpty]: Start isEmpty. Operand 6832 states and 9774 transitions. [2022-07-20 03:49:40,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-20 03:49:40,655 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:49:40,655 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 3, 3, 3, 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] [2022-07-20 03:49:40,694 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 03:49:40,879 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 03:49:40,879 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 03:49:40,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:49:40,880 INFO L85 PathProgramCache]: Analyzing trace with hash 2118853332, now seen corresponding path program 1 times [2022-07-20 03:49:40,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:49:40,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1059763741] [2022-07-20 03:49:40,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:49:40,882 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:49:40,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:49:40,884 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 03:49:40,886 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 03:49:42,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:49:42,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 1496 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 03:49:42,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:49:43,672 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-07-20 03:49:43,673 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 03:49:44,236 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-07-20 03:49:44,237 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:49:44,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1059763741] [2022-07-20 03:49:44,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1059763741] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 03:49:44,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 03:49:44,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 03:49:44,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106393304] [2022-07-20 03:49:44,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:49:44,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 03:49:44,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:49:44,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 03:49:44,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 03:49:44,238 INFO L87 Difference]: Start difference. First operand 6832 states and 9774 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-20 03:49:44,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:49:44,770 INFO L93 Difference]: Finished difference Result 6838 states and 9779 transitions. [2022-07-20 03:49:44,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 03:49:44,770 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 107 [2022-07-20 03:49:44,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:49:44,801 INFO L225 Difference]: With dead ends: 6838 [2022-07-20 03:49:44,801 INFO L226 Difference]: Without dead ends: 6713 [2022-07-20 03:49:44,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 03:49:44,807 INFO L413 NwaCegarLoop]: 2769 mSDtfsCounter, 2736 mSDsluCounter, 5519 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2736 SdHoareTripleChecker+Valid, 8288 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 03:49:44,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2736 Valid, 8288 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 03:49:44,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6713 states. [2022-07-20 03:49:45,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6713 to 6713. [2022-07-20 03:49:45,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6713 states, 4351 states have (on average 1.2247759135830842) internal successors, (5329), 4544 states have internal predecessors, (5329), 1958 states have call successors, (1958), 413 states have call predecessors, (1958), 401 states have return successors, (2345), 1860 states have call predecessors, (2345), 1955 states have call successors, (2345) [2022-07-20 03:49:45,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6713 states to 6713 states and 9632 transitions. [2022-07-20 03:49:45,274 INFO L78 Accepts]: Start accepts. Automaton has 6713 states and 9632 transitions. Word has length 107 [2022-07-20 03:49:45,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:49:45,275 INFO L495 AbstractCegarLoop]: Abstraction has 6713 states and 9632 transitions. [2022-07-20 03:49:45,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-20 03:49:45,276 INFO L276 IsEmpty]: Start isEmpty. Operand 6713 states and 9632 transitions. [2022-07-20 03:49:45,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-07-20 03:49:45,278 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:49:45,279 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:49:45,328 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 03:49:45,499 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 03:49:45,499 INFO L420 AbstractCegarLoop]: === Iteration 15 === 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 03:49:45,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:49:45,500 INFO L85 PathProgramCache]: Analyzing trace with hash 360188657, now seen corresponding path program 1 times [2022-07-20 03:49:45,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:49:45,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [131690515] [2022-07-20 03:49:45,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:49:45,502 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:49:45,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:49:45,503 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 03:49:45,504 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 03:49:46,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:49:46,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 1805 conjuncts, 29 conjunts are in the unsatisfiable core [2022-07-20 03:49:46,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:49:48,717 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-07-20 03:49:48,718 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:49:48,718 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:49:48,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [131690515] [2022-07-20 03:49:48,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [131690515] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:49:48,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:49:48,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-20 03:49:48,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596596881] [2022-07-20 03:49:48,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:49:48,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-20 03:49:48,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:49:48,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-20 03:49:48,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-20 03:49:48,721 INFO L87 Difference]: Start difference. First operand 6713 states and 9632 transitions. Second operand has 12 states, 10 states have (on average 7.3) internal successors, (73), 9 states have internal predecessors, (73), 4 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) [2022-07-20 03:49:52,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:49:52,105 INFO L93 Difference]: Finished difference Result 13419 states and 19252 transitions. [2022-07-20 03:49:52,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-20 03:49:52,106 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.3) internal successors, (73), 9 states have internal predecessors, (73), 4 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) Word has length 150 [2022-07-20 03:49:52,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:49:52,141 INFO L225 Difference]: With dead ends: 13419 [2022-07-20 03:49:52,141 INFO L226 Difference]: Without dead ends: 6721 [2022-07-20 03:49:52,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-07-20 03:49:52,190 INFO L413 NwaCegarLoop]: 2721 mSDtfsCounter, 117 mSDsluCounter, 24240 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 26961 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-20 03:49:52,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 26961 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-20 03:49:52,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6721 states. [2022-07-20 03:49:52,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6721 to 6713. [2022-07-20 03:49:52,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6713 states, 4351 states have (on average 1.2245460813606068) internal successors, (5328), 4543 states have internal predecessors, (5328), 1958 states have call successors, (1958), 413 states have call predecessors, (1958), 401 states have return successors, (2345), 1860 states have call predecessors, (2345), 1955 states have call successors, (2345) [2022-07-20 03:49:52,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6713 states to 6713 states and 9631 transitions. [2022-07-20 03:49:52,709 INFO L78 Accepts]: Start accepts. Automaton has 6713 states and 9631 transitions. Word has length 150 [2022-07-20 03:49:52,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:49:52,712 INFO L495 AbstractCegarLoop]: Abstraction has 6713 states and 9631 transitions. [2022-07-20 03:49:52,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.3) internal successors, (73), 9 states have internal predecessors, (73), 4 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) [2022-07-20 03:49:52,712 INFO L276 IsEmpty]: Start isEmpty. Operand 6713 states and 9631 transitions. [2022-07-20 03:49:52,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-07-20 03:49:52,714 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:49:52,714 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:49:52,769 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 03:49:52,927 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 03:49:52,928 INFO L420 AbstractCegarLoop]: === Iteration 16 === 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 03:49:52,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:49:52,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1123620686, now seen corresponding path program 1 times [2022-07-20 03:49:52,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:49:52,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575167513] [2022-07-20 03:49:52,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:49:52,930 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:49:52,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:49:52,936 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 03:49:52,938 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 03:49:54,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:49:54,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 1817 conjuncts, 20 conjunts are in the unsatisfiable core [2022-07-20 03:49:54,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:49:56,022 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2022-07-20 03:49:56,023 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:49:56,023 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:49:56,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1575167513] [2022-07-20 03:49:56,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1575167513] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:49:56,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:49:56,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-20 03:49:56,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717024777] [2022-07-20 03:49:56,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:49:56,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-20 03:49:56,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:49:56,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-20 03:49:56,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2022-07-20 03:49:56,025 INFO L87 Difference]: Start difference. First operand 6713 states and 9631 transitions. Second operand has 14 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 5 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (17), 6 states have call predecessors, (17), 5 states have call successors, (17) [2022-07-20 03:50:01,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:50:01,888 INFO L93 Difference]: Finished difference Result 13981 states and 20071 transitions. [2022-07-20 03:50:01,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-20 03:50:01,889 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 5 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (17), 6 states have call predecessors, (17), 5 states have call successors, (17) Word has length 154 [2022-07-20 03:50:01,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:50:01,925 INFO L225 Difference]: With dead ends: 13981 [2022-07-20 03:50:01,925 INFO L226 Difference]: Without dead ends: 7283 [2022-07-20 03:50:01,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=106, Invalid=544, Unknown=0, NotChecked=0, Total=650 [2022-07-20 03:50:01,975 INFO L413 NwaCegarLoop]: 2827 mSDtfsCounter, 282 mSDsluCounter, 33432 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 36259 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-07-20 03:50:01,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 36259 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-07-20 03:50:01,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7283 states. [2022-07-20 03:50:02,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7283 to 6757. [2022-07-20 03:50:02,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6757 states, 4383 states have (on average 1.2229066849190053) internal successors, (5360), 4575 states have internal predecessors, (5360), 1966 states have call successors, (1966), 413 states have call predecessors, (1966), 405 states have return successors, (2357), 1872 states have call predecessors, (2357), 1963 states have call successors, (2357) [2022-07-20 03:50:02,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6757 states to 6757 states and 9683 transitions. [2022-07-20 03:50:02,505 INFO L78 Accepts]: Start accepts. Automaton has 6757 states and 9683 transitions. Word has length 154 [2022-07-20 03:50:02,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:50:02,505 INFO L495 AbstractCegarLoop]: Abstraction has 6757 states and 9683 transitions. [2022-07-20 03:50:02,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 5 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (17), 6 states have call predecessors, (17), 5 states have call successors, (17) [2022-07-20 03:50:02,506 INFO L276 IsEmpty]: Start isEmpty. Operand 6757 states and 9683 transitions. [2022-07-20 03:50:02,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-07-20 03:50:02,508 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:50:02,508 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:50:02,556 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 03:50:02,723 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 03:50:02,723 INFO L420 AbstractCegarLoop]: === Iteration 17 === 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 03:50:02,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:50:02,724 INFO L85 PathProgramCache]: Analyzing trace with hash 2006974356, now seen corresponding path program 1 times [2022-07-20 03:50:02,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:50:02,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [996758966] [2022-07-20 03:50:02,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:50:02,726 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:50:02,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:50:02,727 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 03:50:02,728 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 03:50:04,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:50:04,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 1828 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 03:50:04,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:50:04,534 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-07-20 03:50:04,534 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:50:04,534 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:50:04,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [996758966] [2022-07-20 03:50:04,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [996758966] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:50:04,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:50:04,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 03:50:04,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840206166] [2022-07-20 03:50:04,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:50:04,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 03:50:04,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:50:04,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 03:50:04,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:50:04,536 INFO L87 Difference]: Start difference. First operand 6757 states and 9683 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-20 03:50:06,760 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 03:50:07,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:50:07,155 INFO L93 Difference]: Finished difference Result 13595 states and 19513 transitions. [2022-07-20 03:50:07,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 03:50:07,156 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), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 158 [2022-07-20 03:50:07,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:50:07,188 INFO L225 Difference]: With dead ends: 13595 [2022-07-20 03:50:07,188 INFO L226 Difference]: Without dead ends: 6857 [2022-07-20 03:50:07,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:50:07,224 INFO L413 NwaCegarLoop]: 2768 mSDtfsCounter, 33 mSDsluCounter, 2720 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 5488 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-20 03:50:07,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 5488 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-07-20 03:50:07,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6857 states. [2022-07-20 03:50:07,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6857 to 6841. [2022-07-20 03:50:07,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6841 states, 4443 states have (on average 1.2216970515417511) internal successors, (5428), 4635 states have internal predecessors, (5428), 1990 states have call successors, (1990), 413 states have call predecessors, (1990), 405 states have return successors, (2381), 1896 states have call predecessors, (2381), 1987 states have call successors, (2381) [2022-07-20 03:50:07,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6841 states to 6841 states and 9799 transitions. [2022-07-20 03:50:07,763 INFO L78 Accepts]: Start accepts. Automaton has 6841 states and 9799 transitions. Word has length 158 [2022-07-20 03:50:07,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:50:07,764 INFO L495 AbstractCegarLoop]: Abstraction has 6841 states and 9799 transitions. [2022-07-20 03:50:07,764 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), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-20 03:50:07,764 INFO L276 IsEmpty]: Start isEmpty. Operand 6841 states and 9799 transitions. [2022-07-20 03:50:07,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-07-20 03:50:07,771 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:50:07,771 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:50:07,824 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 03:50:07,991 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 03:50:07,992 INFO L420 AbstractCegarLoop]: === Iteration 18 === 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 03:50:07,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:50:07,992 INFO L85 PathProgramCache]: Analyzing trace with hash -220279145, now seen corresponding path program 1 times [2022-07-20 03:50:07,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:50:07,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1147215159] [2022-07-20 03:50:07,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:50:07,994 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:50:07,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:50:07,995 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 03:50:07,996 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 03:50:09,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:50:09,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 1836 conjuncts, 20 conjunts are in the unsatisfiable core [2022-07-20 03:50:09,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:50:11,116 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2022-07-20 03:50:11,117 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:50:11,117 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:50:11,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1147215159] [2022-07-20 03:50:11,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1147215159] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:50:11,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:50:11,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-07-20 03:50:11,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661351045] [2022-07-20 03:50:11,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:50:11,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-20 03:50:11,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:50:11,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-20 03:50:11,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-07-20 03:50:11,123 INFO L87 Difference]: Start difference. First operand 6841 states and 9799 transitions. Second operand has 15 states, 14 states have (on average 5.142857142857143) internal successors, (72), 13 states have internal predecessors, (72), 6 states have call successors, (23), 2 states have call predecessors, (23), 5 states have return successors, (18), 7 states have call predecessors, (18), 6 states have call successors, (18) [2022-07-20 03:50:17,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:50:17,230 INFO L93 Difference]: Finished difference Result 14444 states and 20745 transitions. [2022-07-20 03:50:17,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-20 03:50:17,231 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.142857142857143) internal successors, (72), 13 states have internal predecessors, (72), 6 states have call successors, (23), 2 states have call predecessors, (23), 5 states have return successors, (18), 7 states have call predecessors, (18), 6 states have call successors, (18) Word has length 162 [2022-07-20 03:50:17,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:50:17,268 INFO L225 Difference]: With dead ends: 14444 [2022-07-20 03:50:17,269 INFO L226 Difference]: Without dead ends: 7618 [2022-07-20 03:50:17,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=112, Invalid=644, Unknown=0, NotChecked=0, Total=756 [2022-07-20 03:50:17,298 INFO L413 NwaCegarLoop]: 2903 mSDtfsCounter, 419 mSDsluCounter, 37177 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 40080 SdHoareTripleChecker+Invalid, 884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-07-20 03:50:17,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 40080 Invalid, 884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-07-20 03:50:17,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7618 states. [2022-07-20 03:50:17,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7618 to 6849. [2022-07-20 03:50:17,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6849 states, 4447 states have (on average 1.2214976388576568) internal successors, (5432), 4643 states have internal predecessors, (5432), 1990 states have call successors, (1990), 413 states have call predecessors, (1990), 409 states have return successors, (2397), 1896 states have call predecessors, (2397), 1987 states have call successors, (2397) [2022-07-20 03:50:17,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6849 states to 6849 states and 9819 transitions. [2022-07-20 03:50:17,783 INFO L78 Accepts]: Start accepts. Automaton has 6849 states and 9819 transitions. Word has length 162 [2022-07-20 03:50:17,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:50:17,783 INFO L495 AbstractCegarLoop]: Abstraction has 6849 states and 9819 transitions. [2022-07-20 03:50:17,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.142857142857143) internal successors, (72), 13 states have internal predecessors, (72), 6 states have call successors, (23), 2 states have call predecessors, (23), 5 states have return successors, (18), 7 states have call predecessors, (18), 6 states have call successors, (18) [2022-07-20 03:50:17,784 INFO L276 IsEmpty]: Start isEmpty. Operand 6849 states and 9819 transitions. [2022-07-20 03:50:17,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-07-20 03:50:17,785 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:50:17,786 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:50:17,821 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2022-07-20 03:50:17,986 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 03:50:17,986 INFO L420 AbstractCegarLoop]: === Iteration 19 === 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 03:50:17,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:50:17,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1246889559, now seen corresponding path program 1 times [2022-07-20 03:50:17,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:50:17,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1216375792] [2022-07-20 03:50:17,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:50:17,989 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:50:17,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:50:17,990 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 03:50:17,991 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 03:50:20,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:50:20,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 2426 conjuncts, 35 conjunts are in the unsatisfiable core [2022-07-20 03:50:20,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:50:22,827 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 33 proven. 15 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-07-20 03:50:22,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 03:50:27,005 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 19 proven. 13 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-20 03:50:27,005 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:50:27,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1216375792] [2022-07-20 03:50:27,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1216375792] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 03:50:27,005 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 03:50:27,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 25 [2022-07-20 03:50:27,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937214047] [2022-07-20 03:50:27,006 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 03:50:27,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-07-20 03:50:27,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:50:27,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-07-20 03:50:27,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2022-07-20 03:50:27,008 INFO L87 Difference]: Start difference. First operand 6849 states and 9819 transitions. Second operand has 25 states, 20 states have (on average 6.35) internal successors, (127), 18 states have internal predecessors, (127), 10 states have call successors, (40), 4 states have call predecessors, (40), 6 states have return successors, (37), 11 states have call predecessors, (37), 8 states have call successors, (37) [2022-07-20 03:50:32,222 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 03:50:33,701 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 03:50:35,721 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 03:50:37,244 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 03:50:39,444 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 03:50:41,140 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 03:50:42,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 03:50:43,963 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 03:50:46,287 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 03:50:48,084 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 03:50:52,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:50:52,614 INFO L93 Difference]: Finished difference Result 13680 states and 19639 transitions. [2022-07-20 03:50:52,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-20 03:50:52,615 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 20 states have (on average 6.35) internal successors, (127), 18 states have internal predecessors, (127), 10 states have call successors, (40), 4 states have call predecessors, (40), 6 states have return successors, (37), 11 states have call predecessors, (37), 8 states have call successors, (37) Word has length 181 [2022-07-20 03:50:52,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:50:52,648 INFO L225 Difference]: With dead ends: 13680 [2022-07-20 03:50:52,648 INFO L226 Difference]: Without dead ends: 6850 [2022-07-20 03:50:52,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 336 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=108, Invalid=762, Unknown=0, NotChecked=0, Total=870 [2022-07-20 03:50:52,682 INFO L413 NwaCegarLoop]: 2751 mSDtfsCounter, 1044 mSDsluCounter, 39277 mSDsCounter, 0 mSdLazyCounter, 970 mSolverCounterSat, 346 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1060 SdHoareTripleChecker+Valid, 42028 SdHoareTripleChecker+Invalid, 1317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 346 IncrementalHoareTripleChecker+Valid, 970 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time [2022-07-20 03:50:52,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1060 Valid, 42028 Invalid, 1317 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [346 Valid, 970 Invalid, 1 Unknown, 0 Unchecked, 23.9s Time] [2022-07-20 03:50:52,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6850 states. [2022-07-20 03:50:53,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6850 to 6753. [2022-07-20 03:50:53,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6753 states, 4379 states have (on average 1.2180863210778716) internal successors, (5334), 4570 states have internal predecessors, (5334), 1963 states have call successors, (1963), 412 states have call predecessors, (1963), 408 states have return successors, (2370), 1870 states have call predecessors, (2370), 1960 states have call successors, (2370) [2022-07-20 03:50:53,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6753 states to 6753 states and 9667 transitions. [2022-07-20 03:50:53,085 INFO L78 Accepts]: Start accepts. Automaton has 6753 states and 9667 transitions. Word has length 181 [2022-07-20 03:50:53,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:50:53,086 INFO L495 AbstractCegarLoop]: Abstraction has 6753 states and 9667 transitions. [2022-07-20 03:50:53,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 20 states have (on average 6.35) internal successors, (127), 18 states have internal predecessors, (127), 10 states have call successors, (40), 4 states have call predecessors, (40), 6 states have return successors, (37), 11 states have call predecessors, (37), 8 states have call successors, (37) [2022-07-20 03:50:53,086 INFO L276 IsEmpty]: Start isEmpty. Operand 6753 states and 9667 transitions. [2022-07-20 03:50:53,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-07-20 03:50:53,088 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:50:53,088 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:50:53,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-07-20 03:50:53,289 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 03:50:53,289 INFO L420 AbstractCegarLoop]: === Iteration 20 === 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 03:50:53,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:50:53,290 INFO L85 PathProgramCache]: Analyzing trace with hash 106163740, now seen corresponding path program 1 times [2022-07-20 03:50:53,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:50:53,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [859042767] [2022-07-20 03:50:53,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:50:53,292 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:50:53,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:50:53,293 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 03:50:53,294 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 03:50:56,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:50:56,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 2855 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-20 03:50:56,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:50:56,582 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-07-20 03:50:56,583 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:50:56,583 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:50:56,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [859042767] [2022-07-20 03:50:56,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [859042767] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:50:56,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:50:56,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 03:50:56,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173308828] [2022-07-20 03:50:56,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:50:56,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 03:50:56,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:50:56,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 03:50:56,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 03:50:56,585 INFO L87 Difference]: Start difference. First operand 6753 states and 9667 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-20 03:50:58,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 03:50:59,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:50:59,315 INFO L93 Difference]: Finished difference Result 13527 states and 19393 transitions. [2022-07-20 03:50:59,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 03:50:59,316 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 213 [2022-07-20 03:50:59,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:50:59,342 INFO L225 Difference]: With dead ends: 13527 [2022-07-20 03:50:59,342 INFO L226 Difference]: Without dead ends: 6793 [2022-07-20 03:50:59,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-20 03:50:59,372 INFO L413 NwaCegarLoop]: 2746 mSDtfsCounter, 18 mSDsluCounter, 8207 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 10953 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-20 03:50:59,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 10953 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 26 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-07-20 03:50:59,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6793 states. [2022-07-20 03:50:59,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6793 to 6785. [2022-07-20 03:50:59,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6785 states, 4403 states have (on average 1.2168975698387463) internal successors, (5358), 4594 states have internal predecessors, (5358), 1971 states have call successors, (1971), 412 states have call predecessors, (1971), 408 states have return successors, (2378), 1878 states have call predecessors, (2378), 1968 states have call successors, (2378) [2022-07-20 03:50:59,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6785 states to 6785 states and 9707 transitions. [2022-07-20 03:50:59,893 INFO L78 Accepts]: Start accepts. Automaton has 6785 states and 9707 transitions. Word has length 213 [2022-07-20 03:50:59,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:50:59,894 INFO L495 AbstractCegarLoop]: Abstraction has 6785 states and 9707 transitions. [2022-07-20 03:50:59,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-20 03:50:59,894 INFO L276 IsEmpty]: Start isEmpty. Operand 6785 states and 9707 transitions. [2022-07-20 03:50:59,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-07-20 03:50:59,896 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:50:59,896 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:50:59,997 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 03:51:00,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:51:00,113 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 03:51:00,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:51:00,113 INFO L85 PathProgramCache]: Analyzing trace with hash -2089218343, now seen corresponding path program 1 times [2022-07-20 03:51:00,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:51:00,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2091687673] [2022-07-20 03:51:00,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:51:00,116 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:51:00,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:51:00,118 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 03:51:00,121 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 03:51:03,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:51:03,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 2904 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 03:51:03,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:51:03,557 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-07-20 03:51:03,557 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:51:03,557 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:51:03,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2091687673] [2022-07-20 03:51:03,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2091687673] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:51:03,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:51:03,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 03:51:03,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237323168] [2022-07-20 03:51:03,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:51:03,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 03:51:03,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:51:03,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 03:51:03,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:51:03,559 INFO L87 Difference]: Start difference. First operand 6785 states and 9707 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (27), 2 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 03:51:04,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:51:04,154 INFO L93 Difference]: Finished difference Result 14336 states and 20609 transitions. [2022-07-20 03:51:04,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 03:51:04,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (27), 2 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 234 [2022-07-20 03:51:04,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:51:04,206 INFO L225 Difference]: With dead ends: 14336 [2022-07-20 03:51:04,206 INFO L226 Difference]: Without dead ends: 7570 [2022-07-20 03:51:04,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 03:51:04,250 INFO L413 NwaCegarLoop]: 2965 mSDtfsCounter, 274 mSDsluCounter, 2766 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 5731 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 03:51:04,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 5731 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 03:51:04,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7570 states. [2022-07-20 03:51:04,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7570 to 6789. [2022-07-20 03:51:04,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6789 states, 4407 states have (on average 1.216700703426367) internal successors, (5362), 4598 states have internal predecessors, (5362), 1971 states have call successors, (1971), 412 states have call predecessors, (1971), 408 states have return successors, (2378), 1878 states have call predecessors, (2378), 1968 states have call successors, (2378) [2022-07-20 03:51:04,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6789 states to 6789 states and 9711 transitions. [2022-07-20 03:51:04,703 INFO L78 Accepts]: Start accepts. Automaton has 6789 states and 9711 transitions. Word has length 234 [2022-07-20 03:51:04,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:51:04,704 INFO L495 AbstractCegarLoop]: Abstraction has 6789 states and 9711 transitions. [2022-07-20 03:51:04,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (27), 2 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 03:51:04,704 INFO L276 IsEmpty]: Start isEmpty. Operand 6789 states and 9711 transitions. [2022-07-20 03:51:04,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-07-20 03:51:04,706 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:51:04,706 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:51:04,776 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 03:51:04,906 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 03:51:04,907 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 03:51:04,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:51:04,907 INFO L85 PathProgramCache]: Analyzing trace with hash 310333392, now seen corresponding path program 1 times [2022-07-20 03:51:04,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:51:04,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [19009942] [2022-07-20 03:51:04,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:51:04,910 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:51:04,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:51:04,911 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 03:51:04,912 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 03:51:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:51:08,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 2908 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-20 03:51:08,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:51:08,504 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 90 proven. 1 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-07-20 03:51:08,504 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 03:51:08,737 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-07-20 03:51:08,738 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:51:08,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [19009942] [2022-07-20 03:51:08,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [19009942] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 03:51:08,738 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 03:51:08,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-20 03:51:08,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109306556] [2022-07-20 03:51:08,739 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 03:51:08,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 03:51:08,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:51:08,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 03:51:08,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-20 03:51:08,740 INFO L87 Difference]: Start difference. First operand 6789 states and 9711 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-07-20 03:51:12,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:51:12,398 INFO L93 Difference]: Finished difference Result 16683 states and 24155 transitions. [2022-07-20 03:51:12,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 03:51:12,399 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 237 [2022-07-20 03:51:12,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:51:12,449 INFO L225 Difference]: With dead ends: 16683 [2022-07-20 03:51:12,449 INFO L226 Difference]: Without dead ends: 9913 [2022-07-20 03:51:12,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 468 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-07-20 03:51:12,493 INFO L413 NwaCegarLoop]: 3637 mSDtfsCounter, 1950 mSDsluCounter, 6689 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 496 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2196 SdHoareTripleChecker+Valid, 10326 SdHoareTripleChecker+Invalid, 933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 496 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-20 03:51:12,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2196 Valid, 10326 Invalid, 933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [496 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-20 03:51:12,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9913 states. [2022-07-20 03:51:12,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9913 to 6825. [2022-07-20 03:51:12,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6825 states, 4443 states have (on average 1.2176457348638308) internal successors, (5410), 4634 states have internal predecessors, (5410), 1971 states have call successors, (1971), 412 states have call predecessors, (1971), 408 states have return successors, (2378), 1878 states have call predecessors, (2378), 1968 states have call successors, (2378) [2022-07-20 03:51:12,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6825 states to 6825 states and 9759 transitions. [2022-07-20 03:51:12,943 INFO L78 Accepts]: Start accepts. Automaton has 6825 states and 9759 transitions. Word has length 237 [2022-07-20 03:51:12,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:51:12,944 INFO L495 AbstractCegarLoop]: Abstraction has 6825 states and 9759 transitions. [2022-07-20 03:51:12,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-07-20 03:51:12,944 INFO L276 IsEmpty]: Start isEmpty. Operand 6825 states and 9759 transitions. [2022-07-20 03:51:12,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-07-20 03:51:12,946 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:51:12,946 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:51:13,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-07-20 03:51:13,146 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 03:51:13,147 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 03:51:13,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:51:13,147 INFO L85 PathProgramCache]: Analyzing trace with hash 845399729, now seen corresponding path program 1 times [2022-07-20 03:51:13,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:51:13,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [397307401] [2022-07-20 03:51:13,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:51:13,151 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:51:13,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:51:13,152 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 03:51:13,155 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 03:51:16,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:51:16,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 2908 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 03:51:16,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:51:17,179 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-07-20 03:51:17,179 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 03:51:17,179 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:51:17,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [397307401] [2022-07-20 03:51:17,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [397307401] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 03:51:17,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 03:51:17,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 03:51:17,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580860917] [2022-07-20 03:51:17,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 03:51:17,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 03:51:17,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:51:17,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 03:51:17,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 03:51:17,181 INFO L87 Difference]: Start difference. First operand 6825 states and 9759 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-20 03:51:17,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:51:17,695 INFO L93 Difference]: Finished difference Result 13677 states and 19589 transitions. [2022-07-20 03:51:17,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 03:51:17,696 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 237 [2022-07-20 03:51:17,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:51:17,728 INFO L225 Difference]: With dead ends: 13677 [2022-07-20 03:51:17,728 INFO L226 Difference]: Without dead ends: 6871 [2022-07-20 03:51:17,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 03:51:17,765 INFO L413 NwaCegarLoop]: 2754 mSDtfsCounter, 231 mSDsluCounter, 5186 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 7940 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 03:51:17,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 7940 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 03:51:17,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6871 states. [2022-07-20 03:51:18,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6871 to 6843. [2022-07-20 03:51:18,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6843 states, 4453 states have (on average 1.2171569728273075) internal successors, (5420), 4644 states have internal predecessors, (5420), 1979 states have call successors, (1979), 412 states have call predecessors, (1979), 408 states have return successors, (2386), 1886 states have call predecessors, (2386), 1976 states have call successors, (2386) [2022-07-20 03:51:18,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6843 states to 6843 states and 9785 transitions. [2022-07-20 03:51:18,335 INFO L78 Accepts]: Start accepts. Automaton has 6843 states and 9785 transitions. Word has length 237 [2022-07-20 03:51:18,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:51:18,335 INFO L495 AbstractCegarLoop]: Abstraction has 6843 states and 9785 transitions. [2022-07-20 03:51:18,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 3 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-20 03:51:18,336 INFO L276 IsEmpty]: Start isEmpty. Operand 6843 states and 9785 transitions. [2022-07-20 03:51:18,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-07-20 03:51:18,338 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:51:18,339 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:51:18,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-07-20 03:51:18,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:51:18,560 INFO L420 AbstractCegarLoop]: === Iteration 24 === 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 03:51:18,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:51:18,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1147522126, now seen corresponding path program 1 times [2022-07-20 03:51:18,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:51:18,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [732627827] [2022-07-20 03:51:18,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 03:51:18,562 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:51:18,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:51:18,564 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 03:51:18,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-07-20 03:51:22,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 03:51:22,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 2919 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-20 03:51:22,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 03:51:22,927 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-07-20 03:51:22,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 03:51:23,450 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-07-20 03:51:23,450 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 03:51:23,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [732627827] [2022-07-20 03:51:23,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [732627827] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 03:51:23,450 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 03:51:23,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-20 03:51:23,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996668107] [2022-07-20 03:51:23,451 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 03:51:23,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-20 03:51:23,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 03:51:23,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-20 03:51:23,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-07-20 03:51:23,452 INFO L87 Difference]: Start difference. First operand 6843 states and 9785 transitions. Second operand has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 4 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-20 03:51:24,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 03:51:24,523 INFO L93 Difference]: Finished difference Result 13673 states and 19589 transitions. [2022-07-20 03:51:24,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 03:51:24,523 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 4 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 238 [2022-07-20 03:51:24,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 03:51:24,552 INFO L225 Difference]: With dead ends: 13673 [2022-07-20 03:51:24,553 INFO L226 Difference]: Without dead ends: 6849 [2022-07-20 03:51:24,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 478 GetRequests, 468 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-07-20 03:51:24,589 INFO L413 NwaCegarLoop]: 2754 mSDtfsCounter, 462 mSDsluCounter, 10692 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 13446 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 03:51:24,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 13446 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 03:51:24,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6849 states. [2022-07-20 03:51:25,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6849 to 6849. [2022-07-20 03:51:25,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6849 states, 4459 states have (on average 1.216864767885176) internal successors, (5426), 4650 states have internal predecessors, (5426), 1979 states have call successors, (1979), 412 states have call predecessors, (1979), 408 states have return successors, (2386), 1886 states have call predecessors, (2386), 1976 states have call successors, (2386) [2022-07-20 03:51:25,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6849 states to 6849 states and 9791 transitions. [2022-07-20 03:51:25,235 INFO L78 Accepts]: Start accepts. Automaton has 6849 states and 9791 transitions. Word has length 238 [2022-07-20 03:51:25,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 03:51:25,236 INFO L495 AbstractCegarLoop]: Abstraction has 6849 states and 9791 transitions. [2022-07-20 03:51:25,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 4 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-20 03:51:25,237 INFO L276 IsEmpty]: Start isEmpty. Operand 6849 states and 9791 transitions. [2022-07-20 03:51:25,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-07-20 03:51:25,240 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 03:51:25,240 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:51:25,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-07-20 03:51:25,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 03:51:25,460 INFO L420 AbstractCegarLoop]: === Iteration 25 === 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 03:51:25,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 03:51:25,461 INFO L85 PathProgramCache]: Analyzing trace with hash 51871473, now seen corresponding path program 2 times [2022-07-20 03:51:25,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 03:51:25,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1886256422] [2022-07-20 03:51:25,464 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-20 03:51:25,465 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 03:51:25,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 03:51:25,466 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-20 03:51:25,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process