./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 35987657 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-?-3598765 [2022-07-21 15:19:10,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 15:19:10,439 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 15:19:10,480 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 15:19:10,480 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 15:19:10,481 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 15:19:10,482 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 15:19:10,484 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 15:19:10,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 15:19:10,486 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 15:19:10,486 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 15:19:10,487 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 15:19:10,487 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 15:19:10,488 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 15:19:10,489 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 15:19:10,490 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 15:19:10,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 15:19:10,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 15:19:10,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 15:19:10,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 15:19:10,495 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 15:19:10,496 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 15:19:10,497 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 15:19:10,498 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 15:19:10,499 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 15:19:10,501 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 15:19:10,501 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 15:19:10,502 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 15:19:10,502 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 15:19:10,503 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 15:19:10,503 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 15:19:10,504 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 15:19:10,504 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 15:19:10,505 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 15:19:10,505 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 15:19:10,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 15:19:10,506 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 15:19:10,507 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 15:19:10,507 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 15:19:10,507 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 15:19:10,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 15:19:10,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 15:19:10,509 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 15:19:10,532 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 15:19:10,533 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 15:19:10,533 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 15:19:10,533 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 15:19:10,534 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 15:19:10,534 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 15:19:10,535 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 15:19:10,535 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 15:19:10,536 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 15:19:10,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 15:19:10,537 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 15:19:10,537 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 15:19:10,537 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 15:19:10,537 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 15:19:10,538 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 15:19:10,538 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 15:19:10,538 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 15:19:10,538 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 15:19:10,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 15:19:10,539 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 15:19:10,539 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 15:19:10,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 15:19:10,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 15:19:10,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 15:19:10,540 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 15:19:10,540 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 15:19:10,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 15:19:10,540 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 15:19:10,540 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 15:19:10,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 15:19:10,541 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23f9845edcf139ee9434428d040789a6781b16714bf615b854712f008daec6fd [2022-07-21 15:19:10,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 15:19:10,863 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 15:19:10,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 15:19:10,866 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 15:19:10,867 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 15:19:10,869 INFO L432 ainManager$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 [2022-07-21 15:19:10,921 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/215062927/f699958f0b2b4c7a90d6ce0e2de821d0/FLAG3cb23e75f [2022-07-21 15:19:11,661 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 15:19:11,662 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 [2022-07-21 15:19:11,707 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/215062927/f699958f0b2b4c7a90d6ce0e2de821d0/FLAG3cb23e75f [2022-07-21 15:19:11,946 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/215062927/f699958f0b2b4c7a90d6ce0e2de821d0 [2022-07-21 15:19:11,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 15:19:11,951 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 15:19:11,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 15:19:11,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 15:19:11,956 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 15:19:11,957 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:19:11" (1/1) ... [2022-07-21 15:19:11,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44c7b4f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:19:11, skipping insertion in model container [2022-07-21 15:19:11,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:19:11" (1/1) ... [2022-07-21 15:19:11,965 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 15:19:12,101 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 15:19:14,090 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] [2022-07-21 15:19:14,092 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] [2022-07-21 15:19:14,093 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] [2022-07-21 15:19:14,093 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] [2022-07-21 15:19:14,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 15:19:14,154 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 15:19:14,331 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) [2022-07-21 15:19:14,338 INFO L158 Benchmark]: Toolchain (without parser) took 2386.27ms. Allocated memory was 71.3MB in the beginning and 140.5MB in the end (delta: 69.2MB). Free memory was 43.1MB in the beginning and 69.9MB in the end (delta: -26.8MB). Peak memory consumption was 51.9MB. Max. memory is 16.1GB. [2022-07-21 15:19:14,339 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 52.4MB. Free memory was 34.6MB in the beginning and 34.5MB in the end (delta: 61.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 15:19:14,340 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2383.17ms. Allocated memory was 71.3MB in the beginning and 140.5MB in the end (delta: 69.2MB). Free memory was 42.9MB in the beginning and 69.9MB in the end (delta: -27.0MB). Peak memory consumption was 51.9MB. Max. memory is 16.1GB. [2022-07-21 15:19:14,342 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 52.4MB. Free memory was 34.6MB in the beginning and 34.5MB in the end (delta: 61.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2383.17ms. Allocated memory was 71.3MB in the beginning and 140.5MB in the end (delta: 69.2MB). Free memory was 42.9MB in the beginning and 69.9MB in the end (delta: -27.0MB). Peak memory consumption was 51.9MB. 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-?-3598765 [2022-07-21 15:19:15,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 15:19:15,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 15:19:15,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 15:19:15,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 15:19:15,963 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 15:19:15,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 15:19:15,973 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 15:19:15,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 15:19:15,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 15:19:15,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 15:19:15,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 15:19:15,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 15:19:15,985 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 15:19:15,986 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 15:19:15,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 15:19:15,987 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 15:19:15,988 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 15:19:15,990 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 15:19:15,993 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 15:19:15,997 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 15:19:16,001 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 15:19:16,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 15:19:16,003 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 15:19:16,004 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 15:19:16,008 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 15:19:16,008 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 15:19:16,009 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 15:19:16,010 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 15:19:16,010 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 15:19:16,011 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 15:19:16,011 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 15:19:16,012 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 15:19:16,013 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 15:19:16,014 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 15:19:16,015 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 15:19:16,015 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 15:19:16,015 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 15:19:16,016 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 15:19:16,016 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 15:19:16,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 15:19:16,017 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 15:19:16,018 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 15:19:16,042 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 15:19:16,043 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 15:19:16,043 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 15:19:16,043 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 15:19:16,043 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 15:19:16,044 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 15:19:16,044 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 15:19:16,044 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 15:19:16,044 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 15:19:16,045 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 15:19:16,045 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 15:19:16,045 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 15:19:16,046 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 15:19:16,046 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 15:19:16,046 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 15:19:16,046 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 15:19:16,046 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 15:19:16,046 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 15:19:16,046 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 15:19:16,046 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 15:19:16,047 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 15:19:16,047 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 15:19:16,047 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 15:19:16,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 15:19:16,047 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 15:19:16,047 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 15:19:16,048 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 15:19:16,048 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 15:19:16,048 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 15:19:16,048 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 15:19:16,048 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 15:19:16,048 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 15:19:16,049 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 15:19:16,049 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23f9845edcf139ee9434428d040789a6781b16714bf615b854712f008daec6fd [2022-07-21 15:19:16,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 15:19:16,340 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 15:19:16,342 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 15:19:16,343 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 15:19:16,344 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 15:19:16,346 INFO L432 ainManager$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 [2022-07-21 15:19:16,406 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bc92655c/ffb48a27fbfd4a55a3adc8b2a4632dd9/FLAG39e24fbc9 [2022-07-21 15:19:17,117 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 15:19:17,117 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 [2022-07-21 15:19:17,153 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bc92655c/ffb48a27fbfd4a55a3adc8b2a4632dd9/FLAG39e24fbc9 [2022-07-21 15:19:17,243 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bc92655c/ffb48a27fbfd4a55a3adc8b2a4632dd9 [2022-07-21 15:19:17,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 15:19:17,247 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 15:19:17,247 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 15:19:17,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 15:19:17,250 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 15:19:17,251 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:19:17" (1/1) ... [2022-07-21 15:19:17,252 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ab7ccff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:19:17, skipping insertion in model container [2022-07-21 15:19:17,253 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:19:17" (1/1) ... [2022-07-21 15:19:17,259 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 15:19:17,363 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 15:19:19,907 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] [2022-07-21 15:19:19,913 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] [2022-07-21 15:19:19,914 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] [2022-07-21 15:19:19,915 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] [2022-07-21 15:19:19,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 15:19:19,974 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 15:19:20,043 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 15:19:20,303 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] [2022-07-21 15:19:20,304 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] [2022-07-21 15:19:20,304 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] [2022-07-21 15:19:20,305 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] [2022-07-21 15:19:20,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 15:19:20,351 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 15:19:20,637 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] [2022-07-21 15:19:20,638 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] [2022-07-21 15:19:20,638 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] [2022-07-21 15:19:20,638 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] [2022-07-21 15:19:20,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 15:19:20,763 INFO L208 MainTranslator]: Completed translation [2022-07-21 15:19:20,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:19:20 WrapperNode [2022-07-21 15:19:20,764 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 15:19:20,765 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 15:19:20,766 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 15:19:20,766 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 15:19:20,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:19:20" (1/1) ... [2022-07-21 15:19:20,858 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:19:20" (1/1) ... [2022-07-21 15:19:21,033 INFO L137 Inliner]: procedures = 440, calls = 2260, calls flagged for inlining = 195, calls inlined = 179, statements flattened = 4697 [2022-07-21 15:19:21,035 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 15:19:21,036 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 15:19:21,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 15:19:21,036 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 15:19:21,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:19:20" (1/1) ... [2022-07-21 15:19:21,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:19:20" (1/1) ... [2022-07-21 15:19:21,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:19:20" (1/1) ... [2022-07-21 15:19:21,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:19:20" (1/1) ... [2022-07-21 15:19:21,224 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:19:20" (1/1) ... [2022-07-21 15:19:21,246 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:19:20" (1/1) ... [2022-07-21 15:19:21,274 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:19:20" (1/1) ... [2022-07-21 15:19:21,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 15:19:21,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 15:19:21,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 15:19:21,302 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 15:19:21,303 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:19:20" (1/1) ... [2022-07-21 15:19:21,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 15:19:21,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 15:19:21,329 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) [2022-07-21 15:19:21,336 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 [2022-07-21 15:19:21,360 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_resume [2022-07-21 15:19:21,361 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_resume [2022-07-21 15:19:21,361 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-21 15:19:21,361 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-21 15:19:21,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 15:19:21,361 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 15:19:21,361 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-21 15:19:21,361 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-21 15:19:21,361 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_write_reg [2022-07-21 15:19:21,361 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_write_reg [2022-07-21 15:19:21,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 15:19:21,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 15:19:21,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_3 [2022-07-21 15:19:21,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_3 [2022-07-21 15:19:21,362 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_read8 [2022-07-21 15:19:21,362 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_read8 [2022-07-21 15:19:21,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 15:19:21,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 15:19:21,363 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-21 15:19:21,363 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-21 15:19:21,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_63 [2022-07-21 15:19:21,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_63 [2022-07-21 15:19:21,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_tlan_priv [2022-07-21 15:19:21,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_tlan_priv [2022-07-21 15:19:21,364 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_read_and_clear_stats [2022-07-21 15:19:21,364 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_read_and_clear_stats [2022-07-21 15:19:21,364 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_sync [2022-07-21 15:19:21,364 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_sync [2022-07-21 15:19:21,365 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-21 15:19:21,365 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-21 15:19:21,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-21 15:19:21,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-21 15:19:21,365 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-21 15:19:21,365 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-21 15:19:21,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-21 15:19:21,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-21 15:19:21,366 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-21 15:19:21,366 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-21 15:19:21,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 15:19:21,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-21 15:19:21,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 15:19:21,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-21 15:19:21,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-21 15:19:21,368 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-21 15:19:21,368 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-21 15:19:21,368 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_reset_lists [2022-07-21 15:19:21,368 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_reset_lists [2022-07-21 15:19:21,369 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_close [2022-07-21 15:19:21,369 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_close [2022-07-21 15:19:21,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_65 [2022-07-21 15:19:21,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_65 [2022-07-21 15:19:21,369 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-21 15:19:21,369 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-21 15:19:21,369 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_print [2022-07-21 15:19:21,369 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_print [2022-07-21 15:19:21,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-07-21 15:19:21,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-07-21 15:19:21,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_tlan_priv [2022-07-21 15:19:21,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_tlan_priv [2022-07-21 15:19:21,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pci_unregister_driver [2022-07-21 15:19:21,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pci_unregister_driver [2022-07-21 15:19:21,371 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_probe1 [2022-07-21 15:19:21,371 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_probe1 [2022-07-21 15:19:21,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-21 15:19:21,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-21 15:19:21,372 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-21 15:19:21,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-21 15:19:21,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-21 15:19:21,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-21 15:19:21,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-21 15:19:21,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-21 15:19:21,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-21 15:19:21,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-21 15:19:21,373 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_timer [2022-07-21 15:19:21,373 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_timer [2022-07-21 15:19:21,374 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_timer [2022-07-21 15:19:21,374 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_timer [2022-07-21 15:19:21,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_3_2 [2022-07-21 15:19:21,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_3_2 [2022-07-21 15:19:21,375 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_stop [2022-07-21 15:19:21,375 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_stop [2022-07-21 15:19:21,375 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-21 15:19:21,375 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-21 15:19:21,375 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-21 15:19:21,375 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-21 15:19:21,376 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_remove_one [2022-07-21 15:19:21,376 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_remove_one [2022-07-21 15:19:21,376 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_get_skb [2022-07-21 15:19:21,376 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_get_skb [2022-07-21 15:19:21,376 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_send_byte [2022-07-21 15:19:21,376 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_send_byte [2022-07-21 15:19:21,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-21 15:19:21,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-21 15:19:21,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 15:19:21,377 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2022-07-21 15:19:21,377 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2022-07-21 15:19:21,377 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_poll [2022-07-21 15:19:21,377 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_poll [2022-07-21 15:19:21,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-07-21 15:19:21,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-07-21 15:19:21,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 15:19:21,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-21 15:19:21,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-21 15:19:21,381 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-21 15:19:21,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-21 15:19:21,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 15:19:21,381 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-21 15:19:21,381 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 15:19:21,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 15:19:21,381 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_free_lists [2022-07-21 15:19:21,381 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_free_lists [2022-07-21 15:19:21,382 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-21 15:19:21,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-21 15:19:21,382 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-21 15:19:21,382 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-21 15:19:21,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-21 15:19:21,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-21 15:19:21,382 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2022-07-21 15:19:21,382 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2022-07-21 15:19:21,383 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_store_skb [2022-07-21 15:19:21,383 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_store_skb [2022-07-21 15:19:21,383 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_tx_timeout [2022-07-21 15:19:21,383 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_tx_timeout [2022-07-21 15:19:21,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 15:19:21,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 15:19:21,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-21 15:19:21,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-21 15:19:21,384 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2022-07-21 15:19:21,384 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2022-07-21 15:19:21,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 15:19:21,384 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_power_up [2022-07-21 15:19:21,384 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_power_up [2022-07-21 15:19:21,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-21 15:19:21,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 15:19:21,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 15:19:21,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 15:19:21,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 15:19:21,385 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-21 15:19:21,385 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-21 15:19:21,385 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2022-07-21 15:19:21,385 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2022-07-21 15:19:21,385 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_handle_interrupt [2022-07-21 15:19:21,385 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_handle_interrupt [2022-07-21 15:19:21,386 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_start [2022-07-21 15:19:21,386 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_start [2022-07-21 15:19:21,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-21 15:19:21,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-21 15:19:21,386 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_finish_auto_neg [2022-07-21 15:19:21,386 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_finish_auto_neg [2022-07-21 15:19:21,386 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-21 15:19:21,386 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-21 15:19:21,386 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-21 15:19:21,387 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-21 15:19:21,387 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2022-07-21 15:19:21,387 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2022-07-21 15:19:21,387 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_start_link [2022-07-21 15:19:21,387 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_start_link [2022-07-21 15:19:21,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 15:19:21,387 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_multicast_list [2022-07-21 15:19:21,387 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_multicast_list [2022-07-21 15:19:21,388 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-21 15:19:21,388 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-21 15:19:21,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 15:19:21,388 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-21 15:19:21,388 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-21 15:19:21,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_8_2 [2022-07-21 15:19:21,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_8_2 [2022-07-21 15:19:21,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-21 15:19:21,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-21 15:19:21,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-21 15:19:21,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 15:19:21,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 15:19:21,389 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_print_list [2022-07-21 15:19:21,389 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_print_list [2022-07-21 15:19:21,389 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write16 [2022-07-21 15:19:21,389 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write16 [2022-07-21 15:19:21,389 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-07-21 15:19:21,390 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-07-21 15:19:21,390 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-21 15:19:21,390 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-21 15:19:21,390 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-21 15:19:21,390 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-21 15:19:21,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-21 15:19:21,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-21 15:19:21,390 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-07-21 15:19:21,391 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-07-21 15:19:21,391 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_finish_reset [2022-07-21 15:19:21,391 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_finish_reset [2022-07-21 15:19:21,391 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write32 [2022-07-21 15:19:21,391 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write32 [2022-07-21 15:19:21,391 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-21 15:19:21,391 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-21 15:19:21,391 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-21 15:19:21,392 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-21 15:19:21,392 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_mac [2022-07-21 15:19:21,392 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_mac [2022-07-21 15:19:21,392 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-07-21 15:19:21,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-07-21 15:19:21,392 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_send_start [2022-07-21 15:19:21,392 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_send_start [2022-07-21 15:19:21,392 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_read32 [2022-07-21 15:19:21,392 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_read32 [2022-07-21 15:19:21,393 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write8 [2022-07-21 15:19:21,393 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write8 [2022-07-21 15:19:21,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 15:19:21,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 15:19:21,393 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_power_down [2022-07-21 15:19:21,393 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_power_down [2022-07-21 15:19:21,393 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-21 15:19:21,393 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-21 15:19:21,394 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_reset_adapter [2022-07-21 15:19:21,394 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_reset_adapter [2022-07-21 15:19:21,394 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_send_data [2022-07-21 15:19:21,394 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_send_data [2022-07-21 15:19:21,394 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_reset [2022-07-21 15:19:21,394 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_reset [2022-07-21 15:19:21,394 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_read_reg [2022-07-21 15:19:21,394 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_read_reg [2022-07-21 15:19:21,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-21 15:19:21,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-21 15:19:21,395 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_open [2022-07-21 15:19:21,395 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_open [2022-07-21 15:19:21,395 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-21 15:19:21,395 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-21 15:19:21,395 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-21 15:19:21,395 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-21 15:19:21,395 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~TO~VOID [2022-07-21 15:19:21,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~TO~VOID [2022-07-21 15:19:21,396 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-07-21 15:19:21,396 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-07-21 15:19:21,396 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-07-21 15:19:21,396 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-07-21 15:19:21,396 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-07-21 15:19:21,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-21 15:19:21,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-21 15:19:21,397 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-07-21 15:19:21,397 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-07-21 15:19:21,397 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-07-21 15:19:21,397 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-07-21 15:19:22,056 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 15:19:22,064 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 15:19:32,679 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 15:19:56,465 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); [2022-07-21 15:19:56,465 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)); [2022-07-21 15:19:56,465 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7042: assume ~bvsle64(tlan_eisa_probe_~ioaddr~0#1, 36863bv64); [2022-07-21 15:19:56,465 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7042: assume !~bvsle64(tlan_eisa_probe_~ioaddr~0#1, 36863bv64); [2022-07-21 15:19:56,466 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 [2022-07-21 15:19:56,466 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6976: assume 16bv32 == ~debug~0;havoc tlan_eisa_probe_#t~nondet339#1; [2022-07-21 15:19:56,466 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6976: assume !(16bv32 == ~debug~0); [2022-07-21 15:19:56,466 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7044: assume 0bv32 != ~bvand32(16bv32, ~debug~0); [2022-07-21 15:19:56,466 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7044: assume !(0bv32 != ~bvand32(16bv32, ~debug~0)); [2022-07-21 15:19:56,466 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; [2022-07-21 15:19:56,466 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 [2022-07-21 15:19:56,466 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 [2022-07-21 15:19:56,466 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6949: assume 4366bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~tmp___2~2#1); [2022-07-21 15:19:56,466 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6949: assume !(4366bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~tmp___2~2#1)); [2022-07-21 15:19:56,466 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; [2022-07-21 15:19:56,466 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 [2022-07-21 15:19:56,466 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6918-1: assume 0bv32 != ~bvand32(16bv32, ~debug~0); [2022-07-21 15:19:56,466 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6918-1: assume !(0bv32 != ~bvand32(16bv32, ~debug~0)); [2022-07-21 15:19:56,466 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6986: assume 16bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2022-07-21 15:19:56,466 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6986: assume !(16bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1)); [2022-07-21 15:19:56,466 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; [2022-07-21 15:19:56,466 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 [2022-07-21 15:19:56,467 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6987: tlan_eisa_probe_~irq~0#1 := 5bv32; [2022-07-21 15:19:56,467 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; [2022-07-21 15:19:56,467 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6990: assume 32bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2022-07-21 15:19:56,467 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6990: assume !(32bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1)); [2022-07-21 15:19:56,467 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; [2022-07-21 15:19:56,467 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 [2022-07-21 15:19:56,467 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6991: tlan_eisa_probe_~irq~0#1 := 9bv32; [2022-07-21 15:19:56,467 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6925-1: assume 0bv32 != ~bvand32(16bv32, ~debug~0);havoc tlan_eisa_probe_#t~nondet334#1; [2022-07-21 15:19:56,467 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6925-1: assume !(0bv32 != ~bvand32(16bv32, ~debug~0)); [2022-07-21 15:19:56,468 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); [2022-07-21 15:19:56,468 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)); [2022-07-21 15:19:56,468 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; [2022-07-21 15:19:56,468 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 [2022-07-21 15:19:56,468 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6994: assume 64bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2022-07-21 15:19:56,468 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6994: assume !(64bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1)); [2022-07-21 15:19:56,468 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 [2022-07-21 15:19:56,468 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6995: tlan_eisa_probe_~irq~0#1 := 10bv32; [2022-07-21 15:19:56,468 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6998: assume 128bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2022-07-21 15:19:56,469 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6998: assume !(128bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1)); [2022-07-21 15:19:56,469 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; [2022-07-21 15:19:56,469 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6999: tlan_eisa_probe_~irq~0#1 := 11bv32; [2022-07-21 15:19:56,469 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; [2022-07-21 15:19:56,469 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 [2022-07-21 15:19:56,469 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7033-1: tlan_eisa_probe_~ioaddr~0#1 := ~bvadd64(4096bv64, tlan_eisa_probe_~ioaddr~0#1); [2022-07-21 15:19:56,469 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7002: assume 16bv32 == ~debug~0;havoc tlan_eisa_probe_#t~nondet342#1; [2022-07-21 15:19:56,469 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L7002: assume !(16bv32 == ~debug~0); [2022-07-21 15:19:56,469 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6969: assume 1bv32 != ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___3~1#1); [2022-07-21 15:19:56,470 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6969: assume !(1bv32 != ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___3~1#1)); [2022-07-21 15:19:56,470 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6971-1: assume 16bv32 == ~debug~0;havoc tlan_eisa_probe_#t~nondet343#1; [2022-07-21 15:19:56,470 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint L6971-1: assume !(16bv32 == ~debug~0); [2022-07-21 15:19:56,470 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 [2022-07-21 15:19:56,560 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 15:19:56,585 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 15:19:56,585 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-21 15:19:56,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:19:56 BoogieIcfgContainer [2022-07-21 15:19:56,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 15:19:56,592 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 15:19:56,592 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 15:19:56,595 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 15:19:56,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 03:19:17" (1/3) ... [2022-07-21 15:19:56,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e6606f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:19:56, skipping insertion in model container [2022-07-21 15:19:56,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:19:20" (2/3) ... [2022-07-21 15:19:56,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e6606f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:19:56, skipping insertion in model container [2022-07-21 15:19:56,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:19:56" (3/3) ... [2022-07-21 15:19:56,598 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2022-07-21 15:19:56,609 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 15:19:56,610 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-21 15:19:56,702 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 15:19:56,717 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@453a1c94, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2f19f95 [2022-07-21 15:19:56,717 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-21 15:19:56,727 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) [2022-07-21 15:19:56,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-21 15:19:56,738 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:19:56,739 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] [2022-07-21 15:19:56,739 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)] === [2022-07-21 15:19:56,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:19:56,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1354900798, now seen corresponding path program 1 times [2022-07-21 15:19:56,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:19:56,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [459727948] [2022-07-21 15:19:56,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:19:56,758 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:19:56,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:19:56,761 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) [2022-07-21 15:19:56,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 15:19:58,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:19:58,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 1419 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:19:58,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:19:58,421 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-21 15:19:58,421 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:19:58,422 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:19:58,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [459727948] [2022-07-21 15:19:58,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [459727948] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:19:58,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:19:58,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 15:19:58,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109064075] [2022-07-21 15:19:58,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:19:58,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:19:58,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:19:58,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:19:58,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:19:58,453 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) [2022-07-21 15:20:00,549 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 [] [2022-07-21 15:20:01,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:20:01,278 INFO L93 Difference]: Finished difference Result 5693 states and 8294 transitions. [2022-07-21 15:20:01,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:20:01,281 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 [2022-07-21 15:20:01,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:20:01,323 INFO L225 Difference]: With dead ends: 5693 [2022-07-21 15:20:01,323 INFO L226 Difference]: Without dead ends: 3696 [2022-07-21 15:20:01,355 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 [2022-07-21 15:20:01,361 INFO L413 NwaCegarLoop]: 3905 mSDtfsCounter, 2403 mSDsluCounter, 2692 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 30 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.5s IncrementalHoareTripleChecker+Time [2022-07-21 15:20:01,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2403 Valid, 6597 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 88 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-07-21 15:20:01,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3696 states. [2022-07-21 15:20:01,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3696 to 3654. [2022-07-21 15:20:01,610 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) [2022-07-21 15:20:01,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3654 states to 3654 states and 5078 transitions. [2022-07-21 15:20:01,654 INFO L78 Accepts]: Start accepts. Automaton has 3654 states and 5078 transitions. Word has length 52 [2022-07-21 15:20:01,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:20:01,655 INFO L495 AbstractCegarLoop]: Abstraction has 3654 states and 5078 transitions. [2022-07-21 15:20:01,655 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) [2022-07-21 15:20:01,656 INFO L276 IsEmpty]: Start isEmpty. Operand 3654 states and 5078 transitions. [2022-07-21 15:20:01,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-21 15:20:01,664 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:20:01,665 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] [2022-07-21 15:20:01,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-21 15:20:01,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:20:01,892 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)] === [2022-07-21 15:20:01,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:20:01,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1370419516, now seen corresponding path program 1 times [2022-07-21 15:20:01,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:20:01,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1469311744] [2022-07-21 15:20:01,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:20:01,895 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:20:01,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:20:01,898 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) [2022-07-21 15:20:01,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 15:20:03,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:20:03,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 1419 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:20:03,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:20:03,962 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-21 15:20:03,962 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:20:03,962 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:20:03,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1469311744] [2022-07-21 15:20:03,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1469311744] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:20:03,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:20:03,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 15:20:03,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146954230] [2022-07-21 15:20:03,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:20:03,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:20:03,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:20:03,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:20:03,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:20:03,965 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) [2022-07-21 15:20:04,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:20:04,262 INFO L93 Difference]: Finished difference Result 3660 states and 5083 transitions. [2022-07-21 15:20:04,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 15:20:04,264 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 [2022-07-21 15:20:04,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:20:04,287 INFO L225 Difference]: With dead ends: 3660 [2022-07-21 15:20:04,287 INFO L226 Difference]: Without dead ends: 3658 [2022-07-21 15:20:04,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:20:04,293 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 [2022-07-21 15:20:04,293 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] [2022-07-21 15:20:04,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3658 states. [2022-07-21 15:20:04,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3658 to 3658. [2022-07-21 15:20:04,419 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) [2022-07-21 15:20:04,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3658 states to 3658 states and 5081 transitions. [2022-07-21 15:20:04,453 INFO L78 Accepts]: Start accepts. Automaton has 3658 states and 5081 transitions. Word has length 52 [2022-07-21 15:20:04,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:20:04,454 INFO L495 AbstractCegarLoop]: Abstraction has 3658 states and 5081 transitions. [2022-07-21 15:20:04,454 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) [2022-07-21 15:20:04,455 INFO L276 IsEmpty]: Start isEmpty. Operand 3658 states and 5081 transitions. [2022-07-21 15:20:04,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-21 15:20:04,459 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:20:04,459 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] [2022-07-21 15:20:04,511 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 15:20:04,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:20:04,675 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)] === [2022-07-21 15:20:04,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:20:04,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1181643244, now seen corresponding path program 1 times [2022-07-21 15:20:04,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:20:04,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2089677159] [2022-07-21 15:20:04,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:20:04,678 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:20:04,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:20:04,680 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) [2022-07-21 15:20:04,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 15:20:06,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:20:06,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 1426 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:20:06,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:20:06,601 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-21 15:20:06,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 15:20:06,928 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-21 15:20:06,929 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:20:06,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2089677159] [2022-07-21 15:20:06,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2089677159] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 15:20:06,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 15:20:06,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 15:20:06,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376576036] [2022-07-21 15:20:06,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:20:06,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:20:06,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:20:06,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:20:06,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:20:06,930 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) [2022-07-21 15:20:07,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:20:07,288 INFO L93 Difference]: Finished difference Result 3664 states and 5086 transitions. [2022-07-21 15:20:07,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:20:07,289 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 [2022-07-21 15:20:07,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:20:07,315 INFO L225 Difference]: With dead ends: 3664 [2022-07-21 15:20:07,316 INFO L226 Difference]: Without dead ends: 3662 [2022-07-21 15:20:07,322 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 [2022-07-21 15:20:07,324 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 [2022-07-21 15:20:07,325 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] [2022-07-21 15:20:07,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3662 states. [2022-07-21 15:20:07,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3662 to 3662. [2022-07-21 15:20:07,456 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) [2022-07-21 15:20:07,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3662 states to 3662 states and 5084 transitions. [2022-07-21 15:20:07,491 INFO L78 Accepts]: Start accepts. Automaton has 3662 states and 5084 transitions. Word has length 57 [2022-07-21 15:20:07,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:20:07,493 INFO L495 AbstractCegarLoop]: Abstraction has 3662 states and 5084 transitions. [2022-07-21 15:20:07,494 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) [2022-07-21 15:20:07,494 INFO L276 IsEmpty]: Start isEmpty. Operand 3662 states and 5084 transitions. [2022-07-21 15:20:07,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-21 15:20:07,496 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:20:07,496 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] [2022-07-21 15:20:07,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-21 15:20:07,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:20:07,715 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)] === [2022-07-21 15:20:07,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:20:07,716 INFO L85 PathProgramCache]: Analyzing trace with hash -160876412, now seen corresponding path program 1 times [2022-07-21 15:20:07,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:20:07,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [126000235] [2022-07-21 15:20:07,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:20:07,718 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:20:07,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:20:07,720 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) [2022-07-21 15:20:07,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-21 15:20:09,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:20:09,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 1433 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:20:09,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:20:09,672 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-21 15:20:09,673 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 15:20:09,972 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-21 15:20:09,972 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:20:09,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [126000235] [2022-07-21 15:20:09,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [126000235] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 15:20:09,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 15:20:09,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 15:20:09,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667829286] [2022-07-21 15:20:09,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:20:09,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:20:09,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:20:09,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:20:09,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:20:09,973 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) [2022-07-21 15:20:10,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:20:10,294 INFO L93 Difference]: Finished difference Result 3668 states and 5089 transitions. [2022-07-21 15:20:10,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:20:10,294 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 [2022-07-21 15:20:10,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:20:10,310 INFO L225 Difference]: With dead ends: 3668 [2022-07-21 15:20:10,310 INFO L226 Difference]: Without dead ends: 3666 [2022-07-21 15:20:10,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 15:20:10,314 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 [2022-07-21 15:20:10,315 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] [2022-07-21 15:20:10,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3666 states. [2022-07-21 15:20:10,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3666 to 3666. [2022-07-21 15:20:10,441 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) [2022-07-21 15:20:10,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3666 states to 3666 states and 5087 transitions. [2022-07-21 15:20:10,465 INFO L78 Accepts]: Start accepts. Automaton has 3666 states and 5087 transitions. Word has length 62 [2022-07-21 15:20:10,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:20:10,466 INFO L495 AbstractCegarLoop]: Abstraction has 3666 states and 5087 transitions. [2022-07-21 15:20:10,467 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) [2022-07-21 15:20:10,467 INFO L276 IsEmpty]: Start isEmpty. Operand 3666 states and 5087 transitions. [2022-07-21 15:20:10,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-21 15:20:10,468 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:20:10,469 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] [2022-07-21 15:20:10,505 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-21 15:20:10,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:20:10,698 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)] === [2022-07-21 15:20:10,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:20:10,699 INFO L85 PathProgramCache]: Analyzing trace with hash -16274476, now seen corresponding path program 1 times [2022-07-21 15:20:10,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:20:10,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1617542202] [2022-07-21 15:20:10,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:20:10,701 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:20:10,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:20:10,708 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) [2022-07-21 15:20:10,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-21 15:20:12,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:20:12,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 1440 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:20:12,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:20:12,610 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-21 15:20:12,610 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 15:20:12,872 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-21 15:20:12,873 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:20:12,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1617542202] [2022-07-21 15:20:12,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1617542202] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 15:20:12,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 15:20:12,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 15:20:12,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92964664] [2022-07-21 15:20:12,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:20:12,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:20:12,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:20:12,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:20:12,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:20:12,874 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) [2022-07-21 15:20:13,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:20:13,159 INFO L93 Difference]: Finished difference Result 3672 states and 5092 transitions. [2022-07-21 15:20:13,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:20:13,160 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 [2022-07-21 15:20:13,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:20:13,203 INFO L225 Difference]: With dead ends: 3672 [2022-07-21 15:20:13,204 INFO L226 Difference]: Without dead ends: 3670 [2022-07-21 15:20:13,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 15:20:13,206 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 [2022-07-21 15:20:13,206 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] [2022-07-21 15:20:13,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3670 states. [2022-07-21 15:20:13,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3670 to 3670. [2022-07-21 15:20:13,306 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) [2022-07-21 15:20:13,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3670 states to 3670 states and 5090 transitions. [2022-07-21 15:20:13,326 INFO L78 Accepts]: Start accepts. Automaton has 3670 states and 5090 transitions. Word has length 67 [2022-07-21 15:20:13,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:20:13,327 INFO L495 AbstractCegarLoop]: Abstraction has 3670 states and 5090 transitions. [2022-07-21 15:20:13,327 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) [2022-07-21 15:20:13,327 INFO L276 IsEmpty]: Start isEmpty. Operand 3670 states and 5090 transitions. [2022-07-21 15:20:13,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-21 15:20:13,328 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:20:13,328 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] [2022-07-21 15:20:13,363 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-21 15:20:13,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:20:13,539 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)] === [2022-07-21 15:20:13,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:20:13,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1205869921, now seen corresponding path program 1 times [2022-07-21 15:20:13,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:20:13,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [471800335] [2022-07-21 15:20:13,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:20:13,541 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:20:13,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:20:13,543 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) [2022-07-21 15:20:13,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-21 15:20:14,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:20:14,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 1486 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-21 15:20:14,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:20:15,629 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-21 15:20:15,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 15:20:16,526 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-07-21 15:20:16,526 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:20:16,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [471800335] [2022-07-21 15:20:16,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [471800335] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 15:20:16,526 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 15:20:16,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 19 [2022-07-21 15:20:16,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831469371] [2022-07-21 15:20:16,527 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 15:20:16,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-21 15:20:16,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:20:16,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-21 15:20:16,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-07-21 15:20:16,528 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) [2022-07-21 15:20:21,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:20:21,180 INFO L93 Difference]: Finished difference Result 5710 states and 7885 transitions. [2022-07-21 15:20:21,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-21 15:20:21,180 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 [2022-07-21 15:20:21,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:20:21,198 INFO L225 Difference]: With dead ends: 5710 [2022-07-21 15:20:21,198 INFO L226 Difference]: Without dead ends: 3707 [2022-07-21 15:20:21,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=194, Invalid=928, Unknown=0, NotChecked=0, Total=1122 [2022-07-21 15:20:21,212 INFO L413 NwaCegarLoop]: 2731 mSDtfsCounter, 156 mSDsluCounter, 40718 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 43449 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-07-21 15:20:21,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 43449 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-07-21 15:20:21,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3707 states. [2022-07-21 15:20:21,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3707 to 3689. [2022-07-21 15:20:21,323 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) [2022-07-21 15:20:21,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3689 states to 3689 states and 5113 transitions. [2022-07-21 15:20:21,340 INFO L78 Accepts]: Start accepts. Automaton has 3689 states and 5113 transitions. Word has length 86 [2022-07-21 15:20:21,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:20:21,340 INFO L495 AbstractCegarLoop]: Abstraction has 3689 states and 5113 transitions. [2022-07-21 15:20:21,340 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) [2022-07-21 15:20:21,340 INFO L276 IsEmpty]: Start isEmpty. Operand 3689 states and 5113 transitions. [2022-07-21 15:20:21,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-21 15:20:21,341 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:20:21,341 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] [2022-07-21 15:20:21,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-21 15:20:21,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:20:21,551 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)] === [2022-07-21 15:20:21,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:20:21,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1863967300, now seen corresponding path program 1 times [2022-07-21 15:20:21,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:20:21,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [269886509] [2022-07-21 15:20:21,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:20:21,553 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:20:21,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:20:21,555 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) [2022-07-21 15:20:21,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-21 15:20:22,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:20:22,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 1447 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:20:22,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:20:23,311 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-07-21 15:20:23,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 15:20:23,612 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-07-21 15:20:23,613 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:20:23,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [269886509] [2022-07-21 15:20:23,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [269886509] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 15:20:23,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 15:20:23,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 15:20:23,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476155973] [2022-07-21 15:20:23,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:20:23,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:20:23,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:20:23,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:20:23,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:20:23,614 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) [2022-07-21 15:20:23,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:20:23,920 INFO L93 Difference]: Finished difference Result 3695 states and 5118 transitions. [2022-07-21 15:20:23,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:20:23,920 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 [2022-07-21 15:20:23,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:20:23,952 INFO L225 Difference]: With dead ends: 3695 [2022-07-21 15:20:23,952 INFO L226 Difference]: Without dead ends: 3693 [2022-07-21 15:20:23,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 15:20:23,956 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 [2022-07-21 15:20:23,956 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] [2022-07-21 15:20:23,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3693 states. [2022-07-21 15:20:24,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3693 to 3693. [2022-07-21 15:20:24,073 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) [2022-07-21 15:20:24,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3693 states to 3693 states and 5116 transitions. [2022-07-21 15:20:24,095 INFO L78 Accepts]: Start accepts. Automaton has 3693 states and 5116 transitions. Word has length 72 [2022-07-21 15:20:24,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:20:24,095 INFO L495 AbstractCegarLoop]: Abstraction has 3693 states and 5116 transitions. [2022-07-21 15:20:24,095 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) [2022-07-21 15:20:24,095 INFO L276 IsEmpty]: Start isEmpty. Operand 3693 states and 5116 transitions. [2022-07-21 15:20:24,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-21 15:20:24,100 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:20:24,100 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] [2022-07-21 15:20:24,137 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-21 15:20:24,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:20:24,316 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)] === [2022-07-21 15:20:24,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:20:24,316 INFO L85 PathProgramCache]: Analyzing trace with hash 523585940, now seen corresponding path program 1 times [2022-07-21 15:20:24,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:20:24,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [337663103] [2022-07-21 15:20:24,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:20:24,318 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:20:24,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:20:24,319 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) [2022-07-21 15:20:24,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-21 15:20:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:20:25,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 1454 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:20:25,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:20:26,055 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-21 15:20:26,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 15:20:26,342 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-21 15:20:26,342 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:20:26,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [337663103] [2022-07-21 15:20:26,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [337663103] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 15:20:26,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 15:20:26,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 15:20:26,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650796356] [2022-07-21 15:20:26,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:20:26,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:20:26,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:20:26,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:20:26,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:20:26,344 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) [2022-07-21 15:20:26,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:20:26,615 INFO L93 Difference]: Finished difference Result 3699 states and 5121 transitions. [2022-07-21 15:20:26,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:20:26,616 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 [2022-07-21 15:20:26,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:20:26,628 INFO L225 Difference]: With dead ends: 3699 [2022-07-21 15:20:26,629 INFO L226 Difference]: Without dead ends: 3697 [2022-07-21 15:20:26,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 15:20:26,631 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 [2022-07-21 15:20:26,631 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] [2022-07-21 15:20:26,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3697 states. [2022-07-21 15:20:26,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3697 to 3697. [2022-07-21 15:20:26,740 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) [2022-07-21 15:20:26,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3697 states to 3697 states and 5119 transitions. [2022-07-21 15:20:26,758 INFO L78 Accepts]: Start accepts. Automaton has 3697 states and 5119 transitions. Word has length 77 [2022-07-21 15:20:26,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:20:26,759 INFO L495 AbstractCegarLoop]: Abstraction has 3697 states and 5119 transitions. [2022-07-21 15:20:26,759 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) [2022-07-21 15:20:26,759 INFO L276 IsEmpty]: Start isEmpty. Operand 3697 states and 5119 transitions. [2022-07-21 15:20:26,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-21 15:20:26,760 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:20:26,760 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] [2022-07-21 15:20:26,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-21 15:20:26,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:20:26,976 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)] === [2022-07-21 15:20:26,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:20:26,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1815933948, now seen corresponding path program 1 times [2022-07-21 15:20:26,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:20:26,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1292556431] [2022-07-21 15:20:26,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:20:26,977 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:20:26,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:20:26,978 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) [2022-07-21 15:20:26,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-21 15:20:28,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:20:28,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 1461 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:20:28,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:20:28,768 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-21 15:20:28,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 15:20:29,075 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-21 15:20:29,076 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:20:29,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1292556431] [2022-07-21 15:20:29,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1292556431] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 15:20:29,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 15:20:29,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 15:20:29,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821958274] [2022-07-21 15:20:29,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:20:29,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:20:29,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:20:29,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:20:29,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:20:29,077 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) [2022-07-21 15:20:29,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:20:29,480 INFO L93 Difference]: Finished difference Result 6818 states and 9765 transitions. [2022-07-21 15:20:29,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 15:20:29,481 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 [2022-07-21 15:20:29,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:20:29,508 INFO L225 Difference]: With dead ends: 6818 [2022-07-21 15:20:29,508 INFO L226 Difference]: Without dead ends: 6816 [2022-07-21 15:20:29,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 15:20:29,513 INFO L413 NwaCegarLoop]: 3662 mSDtfsCounter, 2360 mSDsluCounter, 10087 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2365 SdHoareTripleChecker+Valid, 13749 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 [2022-07-21 15:20:29,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2365 Valid, 13749 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 15:20:29,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6816 states. [2022-07-21 15:20:29,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6816 to 6802. [2022-07-21 15:20:29,761 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) [2022-07-21 15:20:29,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6802 states to 6802 states and 9752 transitions. [2022-07-21 15:20:29,806 INFO L78 Accepts]: Start accepts. Automaton has 6802 states and 9752 transitions. Word has length 82 [2022-07-21 15:20:29,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:20:29,807 INFO L495 AbstractCegarLoop]: Abstraction has 6802 states and 9752 transitions. [2022-07-21 15:20:29,807 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) [2022-07-21 15:20:29,807 INFO L276 IsEmpty]: Start isEmpty. Operand 6802 states and 9752 transitions. [2022-07-21 15:20:29,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-21 15:20:29,809 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:20:29,809 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] [2022-07-21 15:20:29,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-21 15:20:30,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:20:30,023 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)] === [2022-07-21 15:20:30,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:20:30,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1162188972, now seen corresponding path program 1 times [2022-07-21 15:20:30,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:20:30,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1474675662] [2022-07-21 15:20:30,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:20:30,026 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:20:30,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:20:30,027 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) [2022-07-21 15:20:30,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-21 15:20:31,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:20:31,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 1468 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:20:31,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:20:31,871 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-21 15:20:31,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 15:20:32,169 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-21 15:20:32,170 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:20:32,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1474675662] [2022-07-21 15:20:32,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1474675662] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 15:20:32,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 15:20:32,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 15:20:32,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390096354] [2022-07-21 15:20:32,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:20:32,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:20:32,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:20:32,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:20:32,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:20:32,171 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) [2022-07-21 15:20:32,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:20:32,518 INFO L93 Difference]: Finished difference Result 6812 states and 9761 transitions. [2022-07-21 15:20:32,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:20:32,519 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 [2022-07-21 15:20:32,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:20:32,544 INFO L225 Difference]: With dead ends: 6812 [2022-07-21 15:20:32,545 INFO L226 Difference]: Without dead ends: 6810 [2022-07-21 15:20:32,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 15:20:32,549 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 [2022-07-21 15:20:32,549 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] [2022-07-21 15:20:32,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6810 states. [2022-07-21 15:20:32,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6810 to 6810. [2022-07-21 15:20:32,801 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) [2022-07-21 15:20:32,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6810 states to 6810 states and 9758 transitions. [2022-07-21 15:20:32,843 INFO L78 Accepts]: Start accepts. Automaton has 6810 states and 9758 transitions. Word has length 87 [2022-07-21 15:20:32,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:20:32,843 INFO L495 AbstractCegarLoop]: Abstraction has 6810 states and 9758 transitions. [2022-07-21 15:20:32,843 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) [2022-07-21 15:20:32,844 INFO L276 IsEmpty]: Start isEmpty. Operand 6810 states and 9758 transitions. [2022-07-21 15:20:32,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-21 15:20:32,844 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:20:32,845 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] [2022-07-21 15:20:32,876 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-21 15:20:33,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:20:33,063 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)] === [2022-07-21 15:20:33,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:20:33,064 INFO L85 PathProgramCache]: Analyzing trace with hash 667203012, now seen corresponding path program 1 times [2022-07-21 15:20:33,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:20:33,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1488522285] [2022-07-21 15:20:33,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:20:33,065 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:20:33,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:20:33,066 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) [2022-07-21 15:20:33,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-21 15:20:34,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:20:34,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 1475 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:20:34,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:20:34,873 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-07-21 15:20:34,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 15:20:35,188 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-07-21 15:20:35,188 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:20:35,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1488522285] [2022-07-21 15:20:35,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1488522285] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 15:20:35,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 15:20:35,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 15:20:35,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099712527] [2022-07-21 15:20:35,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:20:35,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:20:35,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:20:35,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:20:35,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:20:35,190 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) [2022-07-21 15:20:35,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:20:35,601 INFO L93 Difference]: Finished difference Result 6820 states and 9767 transitions. [2022-07-21 15:20:35,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:20:35,602 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 [2022-07-21 15:20:35,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:20:35,636 INFO L225 Difference]: With dead ends: 6820 [2022-07-21 15:20:35,636 INFO L226 Difference]: Without dead ends: 6818 [2022-07-21 15:20:35,644 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 [2022-07-21 15:20:35,645 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 [2022-07-21 15:20:35,645 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] [2022-07-21 15:20:35,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6818 states. [2022-07-21 15:20:35,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6818 to 6818. [2022-07-21 15:20:35,952 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) [2022-07-21 15:20:36,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6818 states to 6818 states and 9764 transitions. [2022-07-21 15:20:36,003 INFO L78 Accepts]: Start accepts. Automaton has 6818 states and 9764 transitions. Word has length 92 [2022-07-21 15:20:36,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:20:36,004 INFO L495 AbstractCegarLoop]: Abstraction has 6818 states and 9764 transitions. [2022-07-21 15:20:36,004 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) [2022-07-21 15:20:36,004 INFO L276 IsEmpty]: Start isEmpty. Operand 6818 states and 9764 transitions. [2022-07-21 15:20:36,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-21 15:20:36,006 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:20:36,007 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] [2022-07-21 15:20:36,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-21 15:20:36,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:20:36,219 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)] === [2022-07-21 15:20:36,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:20:36,220 INFO L85 PathProgramCache]: Analyzing trace with hash 708248852, now seen corresponding path program 1 times [2022-07-21 15:20:36,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:20:36,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1052176207] [2022-07-21 15:20:36,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:20:36,221 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:20:36,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:20:36,223 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) [2022-07-21 15:20:36,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-21 15:20:37,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:20:37,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 1482 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:20:37,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:20:38,649 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-07-21 15:20:38,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 15:20:39,027 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-07-21 15:20:39,028 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:20:39,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1052176207] [2022-07-21 15:20:39,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1052176207] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 15:20:39,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 15:20:39,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 15:20:39,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333386458] [2022-07-21 15:20:39,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:20:39,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:20:39,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:20:39,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:20:39,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:20:39,029 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) [2022-07-21 15:20:39,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:20:39,478 INFO L93 Difference]: Finished difference Result 6828 states and 9773 transitions. [2022-07-21 15:20:39,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:20:39,479 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 [2022-07-21 15:20:39,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:20:39,513 INFO L225 Difference]: With dead ends: 6828 [2022-07-21 15:20:39,513 INFO L226 Difference]: Without dead ends: 6826 [2022-07-21 15:20:39,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 15:20:39,521 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 [2022-07-21 15:20:39,521 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] [2022-07-21 15:20:39,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6826 states. [2022-07-21 15:20:39,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6826 to 6826. [2022-07-21 15:20:39,859 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) [2022-07-21 15:20:39,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6826 states to 6826 states and 9770 transitions. [2022-07-21 15:20:39,910 INFO L78 Accepts]: Start accepts. Automaton has 6826 states and 9770 transitions. Word has length 97 [2022-07-21 15:20:39,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:20:39,911 INFO L495 AbstractCegarLoop]: Abstraction has 6826 states and 9770 transitions. [2022-07-21 15:20:39,911 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) [2022-07-21 15:20:39,911 INFO L276 IsEmpty]: Start isEmpty. Operand 6826 states and 9770 transitions. [2022-07-21 15:20:39,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-21 15:20:39,913 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:20:39,913 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] [2022-07-21 15:20:39,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-21 15:20:40,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:20:40,131 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)] === [2022-07-21 15:20:40,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:20:40,132 INFO L85 PathProgramCache]: Analyzing trace with hash 914284420, now seen corresponding path program 1 times [2022-07-21 15:20:40,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:20:40,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [863335611] [2022-07-21 15:20:40,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:20:40,133 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:20:40,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:20:40,135 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) [2022-07-21 15:20:40,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-21 15:20:41,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:20:41,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 1489 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:20:41,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:20:42,482 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-07-21 15:20:42,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 15:20:42,879 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-07-21 15:20:42,880 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:20:42,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [863335611] [2022-07-21 15:20:42,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [863335611] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 15:20:42,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 15:20:42,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 15:20:42,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408577579] [2022-07-21 15:20:42,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:20:42,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:20:42,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:20:42,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:20:42,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:20:42,882 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) [2022-07-21 15:20:43,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:20:43,314 INFO L93 Difference]: Finished difference Result 6836 states and 9779 transitions. [2022-07-21 15:20:43,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:20:43,315 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 [2022-07-21 15:20:43,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:20:43,352 INFO L225 Difference]: With dead ends: 6836 [2022-07-21 15:20:43,352 INFO L226 Difference]: Without dead ends: 6832 [2022-07-21 15:20:43,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 15:20:43,361 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 [2022-07-21 15:20:43,361 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] [2022-07-21 15:20:43,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6832 states. [2022-07-21 15:20:43,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6832 to 6832. [2022-07-21 15:20:43,680 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) [2022-07-21 15:20:43,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6832 states to 6832 states and 9774 transitions. [2022-07-21 15:20:43,734 INFO L78 Accepts]: Start accepts. Automaton has 6832 states and 9774 transitions. Word has length 102 [2022-07-21 15:20:43,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:20:43,736 INFO L495 AbstractCegarLoop]: Abstraction has 6832 states and 9774 transitions. [2022-07-21 15:20:43,736 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) [2022-07-21 15:20:43,737 INFO L276 IsEmpty]: Start isEmpty. Operand 6832 states and 9774 transitions. [2022-07-21 15:20:43,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-21 15:20:43,738 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:20:43,738 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] [2022-07-21 15:20:43,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-21 15:20:43,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:20:43,955 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)] === [2022-07-21 15:20:43,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:20:43,956 INFO L85 PathProgramCache]: Analyzing trace with hash 2118853332, now seen corresponding path program 1 times [2022-07-21 15:20:43,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:20:43,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1435598012] [2022-07-21 15:20:43,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:20:43,957 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:20:43,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:20:43,958 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) [2022-07-21 15:20:43,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-21 15:20:45,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:20:45,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 1496 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:20:45,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:20:46,022 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-07-21 15:20:46,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 15:20:46,389 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-07-21 15:20:46,390 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:20:46,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1435598012] [2022-07-21 15:20:46,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1435598012] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 15:20:46,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 15:20:46,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 15:20:46,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607941649] [2022-07-21 15:20:46,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:20:46,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:20:46,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:20:46,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:20:46,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:20:46,392 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) [2022-07-21 15:20:46,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:20:46,832 INFO L93 Difference]: Finished difference Result 6838 states and 9779 transitions. [2022-07-21 15:20:46,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:20:46,833 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, (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 [2022-07-21 15:20:46,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:20:46,872 INFO L225 Difference]: With dead ends: 6838 [2022-07-21 15:20:46,872 INFO L226 Difference]: Without dead ends: 6713 [2022-07-21 15:20:46,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 15:20:46,882 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 [2022-07-21 15:20:46,882 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] [2022-07-21 15:20:46,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6713 states. [2022-07-21 15:20:47,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6713 to 6713. [2022-07-21 15:20:47,192 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) [2022-07-21 15:20:47,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6713 states to 6713 states and 9632 transitions. [2022-07-21 15:20:47,246 INFO L78 Accepts]: Start accepts. Automaton has 6713 states and 9632 transitions. Word has length 107 [2022-07-21 15:20:47,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:20:47,247 INFO L495 AbstractCegarLoop]: Abstraction has 6713 states and 9632 transitions. [2022-07-21 15:20:47,247 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) [2022-07-21 15:20:47,248 INFO L276 IsEmpty]: Start isEmpty. Operand 6713 states and 9632 transitions. [2022-07-21 15:20:47,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-07-21 15:20:47,250 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:20:47,250 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] [2022-07-21 15:20:47,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-21 15:20:47,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:20:47,471 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)] === [2022-07-21 15:20:47,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:20:47,472 INFO L85 PathProgramCache]: Analyzing trace with hash 360188657, now seen corresponding path program 1 times [2022-07-21 15:20:47,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:20:47,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [28138850] [2022-07-21 15:20:47,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:20:47,474 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:20:47,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:20:47,475 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:20:47,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-21 15:20:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:20:49,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 1805 conjuncts, 29 conjunts are in the unsatisfiable core [2022-07-21 15:20:49,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:20:50,480 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-07-21 15:20:50,481 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:20:50,481 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:20:50,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [28138850] [2022-07-21 15:20:50,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [28138850] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:20:50,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:20:50,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 15:20:50,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062840193] [2022-07-21 15:20:50,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:20:50,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 15:20:50,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:20:50,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 15:20:50,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 15:20:50,483 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) [2022-07-21 15:20:53,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:20:53,265 INFO L93 Difference]: Finished difference Result 13419 states and 19252 transitions. [2022-07-21 15:20:53,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 15:20:53,266 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 [2022-07-21 15:20:53,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:20:53,300 INFO L225 Difference]: With dead ends: 13419 [2022-07-21 15:20:53,300 INFO L226 Difference]: Without dead ends: 6721 [2022-07-21 15:20:53,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-07-21 15:20:53,398 INFO L413 NwaCegarLoop]: 2721 mSDtfsCounter, 117 mSDsluCounter, 24240 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s 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, 1.9s IncrementalHoareTripleChecker+Time [2022-07-21 15:20:53,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 26961 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-21 15:20:53,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6721 states. [2022-07-21 15:20:53,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6721 to 6713. [2022-07-21 15:20:53,676 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) [2022-07-21 15:20:53,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6713 states to 6713 states and 9631 transitions. [2022-07-21 15:20:53,730 INFO L78 Accepts]: Start accepts. Automaton has 6713 states and 9631 transitions. Word has length 150 [2022-07-21 15:20:53,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:20:53,732 INFO L495 AbstractCegarLoop]: Abstraction has 6713 states and 9631 transitions. [2022-07-21 15:20:53,732 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) [2022-07-21 15:20:53,732 INFO L276 IsEmpty]: Start isEmpty. Operand 6713 states and 9631 transitions. [2022-07-21 15:20:53,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-07-21 15:20:53,734 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:20:53,734 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] [2022-07-21 15:20:53,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-21 15:20:53,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:20:53,951 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)] === [2022-07-21 15:20:53,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:20:53,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1123620686, now seen corresponding path program 1 times [2022-07-21 15:20:53,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:20:53,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [523034713] [2022-07-21 15:20:53,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:20:53,954 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:20:53,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:20:53,955 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) [2022-07-21 15:20:53,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-21 15:20:55,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:20:55,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 1817 conjuncts, 20 conjunts are in the unsatisfiable core [2022-07-21 15:20:55,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:20:56,338 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2022-07-21 15:20:56,339 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:20:56,339 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:20:56,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [523034713] [2022-07-21 15:20:56,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [523034713] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:20:56,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:20:56,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-21 15:20:56,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255263438] [2022-07-21 15:20:56,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:20:56,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-21 15:20:56,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:20:56,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-21 15:20:56,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2022-07-21 15:20:56,340 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) [2022-07-21 15:21:00,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:21:00,601 INFO L93 Difference]: Finished difference Result 13981 states and 20071 transitions. [2022-07-21 15:21:00,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-21 15:21:00,602 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 [2022-07-21 15:21:00,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:21:00,626 INFO L225 Difference]: With dead ends: 13981 [2022-07-21 15:21:00,627 INFO L226 Difference]: Without dead ends: 7283 [2022-07-21 15:21:00,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=106, Invalid=544, Unknown=0, NotChecked=0, Total=650 [2022-07-21 15:21:00,653 INFO L413 NwaCegarLoop]: 2827 mSDtfsCounter, 282 mSDsluCounter, 33432 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s 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, 2.8s IncrementalHoareTripleChecker+Time [2022-07-21 15:21:00,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 36259 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-21 15:21:00,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7283 states. [2022-07-21 15:21:00,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7283 to 6757. [2022-07-21 15:21:00,909 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) [2022-07-21 15:21:00,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6757 states to 6757 states and 9683 transitions. [2022-07-21 15:21:00,954 INFO L78 Accepts]: Start accepts. Automaton has 6757 states and 9683 transitions. Word has length 154 [2022-07-21 15:21:00,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:21:00,955 INFO L495 AbstractCegarLoop]: Abstraction has 6757 states and 9683 transitions. [2022-07-21 15:21:00,955 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) [2022-07-21 15:21:00,955 INFO L276 IsEmpty]: Start isEmpty. Operand 6757 states and 9683 transitions. [2022-07-21 15:21:00,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-07-21 15:21:00,957 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:21:00,957 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] [2022-07-21 15:21:01,000 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-07-21 15:21:01,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:21:01,182 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)] === [2022-07-21 15:21:01,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:21:01,183 INFO L85 PathProgramCache]: Analyzing trace with hash 2006974356, now seen corresponding path program 1 times [2022-07-21 15:21:01,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:21:01,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1170332571] [2022-07-21 15:21:01,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:21:01,184 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:21:01,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:21:01,187 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) [2022-07-21 15:21:01,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-21 15:21:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:21:02,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 1828 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:21:02,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:21:03,026 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-07-21 15:21:03,026 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:21:03,026 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:21:03,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1170332571] [2022-07-21 15:21:03,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1170332571] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:21:03,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:21:03,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:21:03,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801353645] [2022-07-21 15:21:03,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:21:03,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:21:03,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:21:03,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:21:03,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:21:03,028 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) [2022-07-21 15:21:04,503 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:21:04,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:21:04,923 INFO L93 Difference]: Finished difference Result 14290 states and 20557 transitions. [2022-07-21 15:21:04,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:21:04,924 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 [2022-07-21 15:21:04,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:21:04,970 INFO L225 Difference]: With dead ends: 14290 [2022-07-21 15:21:04,970 INFO L226 Difference]: Without dead ends: 7552 [2022-07-21 15:21:05,009 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 [2022-07-21 15:21:05,010 INFO L413 NwaCegarLoop]: 3142 mSDtfsCounter, 293 mSDsluCounter, 2775 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 5917 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-21 15:21:05,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 5917 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-21 15:21:05,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7552 states. [2022-07-21 15:21:05,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7552 to 7536. [2022-07-21 15:21:05,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7536 states, 4971 states have (on average 1.2295312814323074) internal successors, (6112), 5179 states have internal predecessors, (6112), 2157 states have call successors, (2157), 413 states have call predecessors, (2157), 405 states have return successors, (2570), 2057 states have call predecessors, (2570), 2154 states have call successors, (2570) [2022-07-21 15:21:05,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7536 states to 7536 states and 10839 transitions. [2022-07-21 15:21:05,415 INFO L78 Accepts]: Start accepts. Automaton has 7536 states and 10839 transitions. Word has length 158 [2022-07-21 15:21:05,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:21:05,416 INFO L495 AbstractCegarLoop]: Abstraction has 7536 states and 10839 transitions. [2022-07-21 15:21:05,416 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) [2022-07-21 15:21:05,416 INFO L276 IsEmpty]: Start isEmpty. Operand 7536 states and 10839 transitions. [2022-07-21 15:21:05,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-07-21 15:21:05,418 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:21:05,418 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] [2022-07-21 15:21:05,463 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-21 15:21:05,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:21:05,632 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)] === [2022-07-21 15:21:05,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:21:05,632 INFO L85 PathProgramCache]: Analyzing trace with hash -220279145, now seen corresponding path program 1 times [2022-07-21 15:21:05,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:21:05,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [738481574] [2022-07-21 15:21:05,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:21:05,634 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:21:05,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:21:05,635 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) [2022-07-21 15:21:05,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-21 15:21:07,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:21:07,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 1836 conjuncts, 20 conjunts are in the unsatisfiable core [2022-07-21 15:21:07,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:21:08,205 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2022-07-21 15:21:08,205 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:21:08,205 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:21:08,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [738481574] [2022-07-21 15:21:08,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [738481574] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:21:08,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:21:08,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-07-21 15:21:08,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984147949] [2022-07-21 15:21:08,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:21:08,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-21 15:21:08,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:21:08,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-21 15:21:08,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-07-21 15:21:08,208 INFO L87 Difference]: Start difference. First operand 7536 states and 10839 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) [2022-07-21 15:21:13,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:21:13,300 INFO L93 Difference]: Finished difference Result 15659 states and 22563 transitions. [2022-07-21 15:21:13,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-21 15:21:13,301 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 [2022-07-21 15:21:13,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:21:13,344 INFO L225 Difference]: With dead ends: 15659 [2022-07-21 15:21:13,344 INFO L226 Difference]: Without dead ends: 8138 [2022-07-21 15:21:13,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=112, Invalid=644, Unknown=0, NotChecked=0, Total=756 [2022-07-21 15:21:13,393 INFO L413 NwaCegarLoop]: 2907 mSDtfsCounter, 418 mSDsluCounter, 37222 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 40129 SdHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-07-21 15:21:13,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 40129 Invalid, 885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-07-21 15:21:13,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8138 states. [2022-07-21 15:21:13,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8138 to 7544. [2022-07-21 15:21:13,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7544 states, 4975 states have (on average 1.2293467336683417) internal successors, (6116), 5187 states have internal predecessors, (6116), 2157 states have call successors, (2157), 413 states have call predecessors, (2157), 409 states have return successors, (2586), 2057 states have call predecessors, (2586), 2154 states have call successors, (2586) [2022-07-21 15:21:13,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7544 states to 7544 states and 10859 transitions. [2022-07-21 15:21:13,867 INFO L78 Accepts]: Start accepts. Automaton has 7544 states and 10859 transitions. Word has length 162 [2022-07-21 15:21:13,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:21:13,868 INFO L495 AbstractCegarLoop]: Abstraction has 7544 states and 10859 transitions. [2022-07-21 15:21:13,868 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) [2022-07-21 15:21:13,868 INFO L276 IsEmpty]: Start isEmpty. Operand 7544 states and 10859 transitions. [2022-07-21 15:21:13,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-07-21 15:21:13,870 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:21:13,870 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] [2022-07-21 15:21:13,912 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-07-21 15:21:14,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:21:14,087 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)] === [2022-07-21 15:21:14,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:21:14,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1246889559, now seen corresponding path program 1 times [2022-07-21 15:21:14,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:21:14,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [635819874] [2022-07-21 15:21:14,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:21:14,090 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:21:14,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:21:14,091 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) [2022-07-21 15:21:14,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-07-21 15:21:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:21:16,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 2426 conjuncts, 35 conjunts are in the unsatisfiable core [2022-07-21 15:21:16,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:21:18,708 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 33 proven. 15 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-07-21 15:21:18,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 15:21:22,297 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 19 proven. 13 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-21 15:21:22,298 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:21:22,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [635819874] [2022-07-21 15:21:22,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [635819874] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 15:21:22,298 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 15:21:22,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 25 [2022-07-21 15:21:22,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138879050] [2022-07-21 15:21:22,298 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 15:21:22,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-07-21 15:21:22,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:21:22,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-07-21 15:21:22,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2022-07-21 15:21:22,300 INFO L87 Difference]: Start difference. First operand 7544 states and 10859 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) [2022-07-21 15:21:28,245 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 [] [2022-07-21 15:21:31,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:21:31,639 INFO L93 Difference]: Finished difference Result 14399 states and 20703 transitions. [2022-07-21 15:21:31,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-21 15:21:31,640 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 [2022-07-21 15:21:31,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:21:31,672 INFO L225 Difference]: With dead ends: 14399 [2022-07-21 15:21:31,672 INFO L226 Difference]: Without dead ends: 6874 [2022-07-21 15:21:31,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 336 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=108, Invalid=762, Unknown=0, NotChecked=0, Total=870 [2022-07-21 15:21:31,711 INFO L413 NwaCegarLoop]: 2757 mSDtfsCounter, 345 mSDsluCounter, 43167 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 111 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 45924 SdHoareTripleChecker+Invalid, 1134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 1022 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-07-21 15:21:31,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 45924 Invalid, 1134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 1022 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2022-07-21 15:21:31,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6874 states. [2022-07-21 15:21:32,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6874 to 6789. [2022-07-21 15:21:32,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6789 states, 4399 states have (on average 1.2170947942714254) internal successors, (5354), 4590 states have internal predecessors, (5354), 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) [2022-07-21 15:21:32,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6789 states to 6789 states and 9719 transitions. [2022-07-21 15:21:32,111 INFO L78 Accepts]: Start accepts. Automaton has 6789 states and 9719 transitions. Word has length 181 [2022-07-21 15:21:32,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:21:32,111 INFO L495 AbstractCegarLoop]: Abstraction has 6789 states and 9719 transitions. [2022-07-21 15:21:32,111 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) [2022-07-21 15:21:32,111 INFO L276 IsEmpty]: Start isEmpty. Operand 6789 states and 9719 transitions. [2022-07-21 15:21:32,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-07-21 15:21:32,113 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:21:32,114 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] [2022-07-21 15:21:32,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-07-21 15:21:32,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:21:32,339 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)] === [2022-07-21 15:21:32,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:21:32,340 INFO L85 PathProgramCache]: Analyzing trace with hash 106163740, now seen corresponding path program 1 times [2022-07-21 15:21:32,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:21:32,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1603034982] [2022-07-21 15:21:32,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:21:32,342 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:21:32,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:21:32,343 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) [2022-07-21 15:21:32,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-07-21 15:21:35,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:21:35,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 2855 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-21 15:21:35,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:21:35,389 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-07-21 15:21:35,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:21:35,389 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:21:35,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1603034982] [2022-07-21 15:21:35,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1603034982] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:21:35,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:21:35,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 15:21:35,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984886120] [2022-07-21 15:21:35,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:21:35,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:21:35,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:21:35,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:21:35,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:21:35,391 INFO L87 Difference]: Start difference. First operand 6789 states and 9719 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) [2022-07-21 15:21:36,974 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 15:21:37,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:21:37,462 INFO L93 Difference]: Finished difference Result 13599 states and 19501 transitions. [2022-07-21 15:21:37,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 15:21:37,462 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 [2022-07-21 15:21:37,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:21:37,487 INFO L225 Difference]: With dead ends: 13599 [2022-07-21 15:21:37,488 INFO L226 Difference]: Without dead ends: 6829 [2022-07-21 15:21:37,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:21:37,518 INFO L413 NwaCegarLoop]: 2746 mSDtfsCounter, 18 mSDsluCounter, 8207 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 10953 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-21 15:21:37,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 10953 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-21 15:21:37,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6829 states. [2022-07-21 15:21:37,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6829 to 6801. [2022-07-21 15:21:37,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6801 states, 4411 states have (on average 1.2165041940603039) internal successors, (5366), 4602 states have internal predecessors, (5366), 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) [2022-07-21 15:21:37,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6801 states to 6801 states and 9731 transitions. [2022-07-21 15:21:37,907 INFO L78 Accepts]: Start accepts. Automaton has 6801 states and 9731 transitions. Word has length 213 [2022-07-21 15:21:37,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:21:37,907 INFO L495 AbstractCegarLoop]: Abstraction has 6801 states and 9731 transitions. [2022-07-21 15:21:37,908 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) [2022-07-21 15:21:37,908 INFO L276 IsEmpty]: Start isEmpty. Operand 6801 states and 9731 transitions. [2022-07-21 15:21:37,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-07-21 15:21:37,911 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:21:37,911 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] [2022-07-21 15:21:37,977 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-07-21 15:21:38,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:21:38,113 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)] === [2022-07-21 15:21:38,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:21:38,114 INFO L85 PathProgramCache]: Analyzing trace with hash -2089218343, now seen corresponding path program 1 times [2022-07-21 15:21:38,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:21:38,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [593115276] [2022-07-21 15:21:38,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:21:38,115 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:21:38,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:21:38,116 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) [2022-07-21 15:21:38,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-07-21 15:21:40,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:21:41,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 2904 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:21:41,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:21:41,053 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-07-21 15:21:41,054 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:21:41,054 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:21:41,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [593115276] [2022-07-21 15:21:41,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [593115276] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:21:41,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:21:41,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:21:41,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313705008] [2022-07-21 15:21:41,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:21:41,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:21:41,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:21:41,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:21:41,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:21:41,056 INFO L87 Difference]: Start difference. First operand 6801 states and 9731 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) [2022-07-21 15:21:41,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:21:41,531 INFO L93 Difference]: Finished difference Result 14412 states and 20721 transitions. [2022-07-21 15:21:41,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:21:41,533 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 [2022-07-21 15:21:41,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:21:41,564 INFO L225 Difference]: With dead ends: 14412 [2022-07-21 15:21:41,565 INFO L226 Difference]: Without dead ends: 7630 [2022-07-21 15:21:41,595 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 [2022-07-21 15:21:41,596 INFO L413 NwaCegarLoop]: 3050 mSDtfsCounter, 274 mSDsluCounter, 2786 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 5836 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 [2022-07-21 15:21:41,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 5836 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 15:21:41,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7630 states. [2022-07-21 15:21:41,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7630 to 6805. [2022-07-21 15:21:41,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6805 states, 4415 states have (on average 1.216308040770102) internal successors, (5370), 4606 states have internal predecessors, (5370), 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) [2022-07-21 15:21:41,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6805 states to 6805 states and 9735 transitions. [2022-07-21 15:21:41,936 INFO L78 Accepts]: Start accepts. Automaton has 6805 states and 9735 transitions. Word has length 234 [2022-07-21 15:21:41,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:21:41,937 INFO L495 AbstractCegarLoop]: Abstraction has 6805 states and 9735 transitions. [2022-07-21 15:21:41,937 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) [2022-07-21 15:21:41,937 INFO L276 IsEmpty]: Start isEmpty. Operand 6805 states and 9735 transitions. [2022-07-21 15:21:41,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-07-21 15:21:41,938 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:21:41,939 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] [2022-07-21 15:21:42,006 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-07-21 15:21:42,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:21:42,143 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)] === [2022-07-21 15:21:42,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:21:42,144 INFO L85 PathProgramCache]: Analyzing trace with hash 310333392, now seen corresponding path program 1 times [2022-07-21 15:21:42,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:21:42,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1618290096] [2022-07-21 15:21:42,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:21:42,146 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:21:42,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:21:42,147 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) [2022-07-21 15:21:42,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-07-21 15:21:45,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:21:45,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 2908 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 15:21:45,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:21:45,280 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 90 proven. 1 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-07-21 15:21:45,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 15:21:45,449 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-07-21 15:21:45,449 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:21:45,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1618290096] [2022-07-21 15:21:45,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1618290096] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 15:21:45,449 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 15:21:45,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-21 15:21:45,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039585101] [2022-07-21 15:21:45,449 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 15:21:45,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 15:21:45,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:21:45,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 15:21:45,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-21 15:21:45,451 INFO L87 Difference]: Start difference. First operand 6805 states and 9735 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) [2022-07-21 15:21:48,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:21:48,205 INFO L93 Difference]: Finished difference Result 16891 states and 24447 transitions. [2022-07-21 15:21:48,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:21:48,207 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 [2022-07-21 15:21:48,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:21:48,244 INFO L225 Difference]: With dead ends: 16891 [2022-07-21 15:21:48,244 INFO L226 Difference]: Without dead ends: 10105 [2022-07-21 15:21:48,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 468 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:21:48,279 INFO L413 NwaCegarLoop]: 3768 mSDtfsCounter, 1517 mSDsluCounter, 6765 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 496 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1763 SdHoareTripleChecker+Valid, 10533 SdHoareTripleChecker+Invalid, 933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 496 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-21 15:21:48,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1763 Valid, 10533 Invalid, 933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [496 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-21 15:21:48,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10105 states. [2022-07-21 15:21:48,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10105 to 6841. [2022-07-21 15:21:48,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6841 states, 4451 states have (on average 1.2172545495394294) internal successors, (5418), 4642 states have internal predecessors, (5418), 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) [2022-07-21 15:21:48,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6841 states to 6841 states and 9783 transitions. [2022-07-21 15:21:48,774 INFO L78 Accepts]: Start accepts. Automaton has 6841 states and 9783 transitions. Word has length 237 [2022-07-21 15:21:48,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:21:48,775 INFO L495 AbstractCegarLoop]: Abstraction has 6841 states and 9783 transitions. [2022-07-21 15:21:48,775 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) [2022-07-21 15:21:48,775 INFO L276 IsEmpty]: Start isEmpty. Operand 6841 states and 9783 transitions. [2022-07-21 15:21:48,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-07-21 15:21:48,777 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:21:48,777 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] [2022-07-21 15:21:48,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-07-21 15:21:48,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:21:48,979 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)] === [2022-07-21 15:21:48,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:21:48,979 INFO L85 PathProgramCache]: Analyzing trace with hash 845399729, now seen corresponding path program 1 times [2022-07-21 15:21:48,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:21:48,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [92868089] [2022-07-21 15:21:48,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:21:48,981 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:21:48,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:21:48,984 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) [2022-07-21 15:21:48,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-07-21 15:21:52,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:21:52,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 2908 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:21:52,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:21:52,668 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-07-21 15:21:52,668 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:21:52,668 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:21:52,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [92868089] [2022-07-21 15:21:52,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [92868089] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:21:52,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:21:52,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 15:21:52,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140669811] [2022-07-21 15:21:52,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:21:52,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 15:21:52,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:21:52,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 15:21:52,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 15:21:52,669 INFO L87 Difference]: Start difference. First operand 6841 states and 9783 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) [2022-07-21 15:21:53,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:21:53,097 INFO L93 Difference]: Finished difference Result 13665 states and 19577 transitions. [2022-07-21 15:21:53,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 15:21:53,098 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 [2022-07-21 15:21:53,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:21:53,127 INFO L225 Difference]: With dead ends: 13665 [2022-07-21 15:21:53,127 INFO L226 Difference]: Without dead ends: 6843 [2022-07-21 15:21:53,161 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 [2022-07-21 15:21:53,161 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 [2022-07-21 15:21:53,162 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] [2022-07-21 15:21:53,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6843 states. [2022-07-21 15:21:53,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6843 to 6843. [2022-07-21 15:21:53,537 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) [2022-07-21 15:21:53,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6843 states to 6843 states and 9785 transitions. [2022-07-21 15:21:53,576 INFO L78 Accepts]: Start accepts. Automaton has 6843 states and 9785 transitions. Word has length 237 [2022-07-21 15:21:53,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:21:53,577 INFO L495 AbstractCegarLoop]: Abstraction has 6843 states and 9785 transitions. [2022-07-21 15:21:53,577 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) [2022-07-21 15:21:53,577 INFO L276 IsEmpty]: Start isEmpty. Operand 6843 states and 9785 transitions. [2022-07-21 15:21:53,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-07-21 15:21:53,578 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:21:53,579 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] [2022-07-21 15:21:53,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-07-21 15:21:53,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:21:53,779 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)] === [2022-07-21 15:21:53,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:21:53,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1147522126, now seen corresponding path program 1 times [2022-07-21 15:21:53,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:21:53,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1792409697] [2022-07-21 15:21:53,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:21:53,782 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:21:53,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:21:53,783 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) [2022-07-21 15:21:53,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-07-21 15:21:57,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:21:57,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 2919 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-21 15:21:57,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:21:57,516 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-07-21 15:21:57,516 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 15:21:57,879 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-07-21 15:21:57,879 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:21:57,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1792409697] [2022-07-21 15:21:57,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1792409697] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 15:21:57,879 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 15:21:57,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-21 15:21:57,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657490908] [2022-07-21 15:21:57,879 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 15:21:57,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 15:21:57,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:21:57,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 15:21:57,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-07-21 15:21:57,881 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) [2022-07-21 15:21:58,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:21:58,682 INFO L93 Difference]: Finished difference Result 13673 states and 19589 transitions. [2022-07-21 15:21:58,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 15:21:58,683 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 [2022-07-21 15:21:58,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:21:58,707 INFO L225 Difference]: With dead ends: 13673 [2022-07-21 15:21:58,707 INFO L226 Difference]: Without dead ends: 6849 [2022-07-21 15:21:58,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 478 GetRequests, 468 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-07-21 15:21:58,736 INFO L413 NwaCegarLoop]: 2754 mSDtfsCounter, 231 mSDsluCounter, 13125 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 15879 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 15:21:58,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 15879 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 15:21:58,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6849 states. [2022-07-21 15:21:59,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6849 to 6849. [2022-07-21 15:21:59,034 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) [2022-07-21 15:21:59,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6849 states to 6849 states and 9791 transitions. [2022-07-21 15:21:59,072 INFO L78 Accepts]: Start accepts. Automaton has 6849 states and 9791 transitions. Word has length 238 [2022-07-21 15:21:59,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:21:59,072 INFO L495 AbstractCegarLoop]: Abstraction has 6849 states and 9791 transitions. [2022-07-21 15:21:59,073 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) [2022-07-21 15:21:59,073 INFO L276 IsEmpty]: Start isEmpty. Operand 6849 states and 9791 transitions. [2022-07-21 15:21:59,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-07-21 15:21:59,074 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:21:59,074 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] [2022-07-21 15:21:59,140 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Ended with exit code 0 [2022-07-21 15:21:59,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 15:21:59,275 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)] === [2022-07-21 15:21:59,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:21:59,275 INFO L85 PathProgramCache]: Analyzing trace with hash 51871473, now seen corresponding path program 2 times [2022-07-21 15:21:59,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:21:59,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [125034237] [2022-07-21 15:21:59,277 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 15:21:59,277 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:21:59,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:21:59,279 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) [2022-07-21 15:21:59,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process