./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.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_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.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 2a992b8f7caf2083ee3b7e2acdd5fd118d6f91728d6dd0ef901811e301ef25da --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 14:59:13,504 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 14:59:13,506 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 14:59:13,546 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 14:59:13,546 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 14:59:13,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 14:59:13,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 14:59:13,551 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 14:59:13,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 14:59:13,553 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 14:59:13,554 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 14:59:13,555 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 14:59:13,556 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 14:59:13,557 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 14:59:13,558 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 14:59:13,559 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 14:59:13,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 14:59:13,560 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 14:59:13,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 14:59:13,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 14:59:13,564 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 14:59:13,565 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 14:59:13,566 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 14:59:13,567 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 14:59:13,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 14:59:13,571 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 14:59:13,571 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 14:59:13,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 14:59:13,573 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 14:59:13,573 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 14:59:13,574 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 14:59:13,574 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 14:59:13,575 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 14:59:13,576 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 14:59:13,576 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 14:59:13,577 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 14:59:13,578 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 14:59:13,578 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 14:59:13,578 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 14:59:13,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 14:59:13,579 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 14:59:13,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 14:59:13,581 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 14:59:13,615 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 14:59:13,617 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 14:59:13,617 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 14:59:13,617 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 14:59:13,618 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 14:59:13,619 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 14:59:13,619 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 14:59:13,620 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 14:59:13,620 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 14:59:13,621 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 14:59:13,621 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 14:59:13,621 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 14:59:13,622 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 14:59:13,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 14:59:13,622 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 14:59:13,622 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 14:59:13,622 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 14:59:13,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 14:59:13,623 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 14:59:13,623 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 14:59:13,623 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 14:59:13,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 14:59:13,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 14:59:13,624 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 14:59:13,624 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 14:59:13,624 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 14:59:13,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 14:59:13,625 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 14:59:13,625 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 14:59:13,625 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 14:59:13,626 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a992b8f7caf2083ee3b7e2acdd5fd118d6f91728d6dd0ef901811e301ef25da [2022-07-21 14:59:13,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 14:59:14,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 14:59:14,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 14:59:14,016 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 14:59:14,018 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 14:59:14,020 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2022-07-21 14:59:14,080 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/947dc979d/5317d04cecc0424981ca3b211cd01673/FLAGb39fb0aa3 [2022-07-21 14:59:14,990 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 14:59:14,991 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2022-07-21 14:59:15,061 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/947dc979d/5317d04cecc0424981ca3b211cd01673/FLAGb39fb0aa3 [2022-07-21 14:59:15,108 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/947dc979d/5317d04cecc0424981ca3b211cd01673 [2022-07-21 14:59:15,111 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 14:59:15,112 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 14:59:15,114 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 14:59:15,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 14:59:15,118 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 14:59:15,119 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:59:15" (1/1) ... [2022-07-21 14:59:15,120 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67e2a677 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:59:15, skipping insertion in model container [2022-07-21 14:59:15,120 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:59:15" (1/1) ... [2022-07-21 14:59:15,140 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 14:59:15,299 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 14:59:17,937 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375187,375200] [2022-07-21 14:59:17,940 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375356,375369] [2022-07-21 14:59:17,941 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375523,375536] [2022-07-21 14:59:17,941 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375691,375704] [2022-07-21 14:59:17,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 14:59:17,994 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 14:59:18,161 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: val = val & 255UL [6668] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-21 14:59:18,168 INFO L158 Benchmark]: Toolchain (without parser) took 3054.58ms. Allocated memory was 69.2MB in the beginning and 155.2MB in the end (delta: 86.0MB). Free memory was 35.3MB in the beginning and 85.4MB in the end (delta: -50.1MB). Peak memory consumption was 50.9MB. Max. memory is 16.1GB. [2022-07-21 14:59:18,169 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 69.2MB. Free memory was 52.3MB in the beginning and 52.2MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 14:59:18,170 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3051.41ms. Allocated memory was 69.2MB in the beginning and 155.2MB in the end (delta: 86.0MB). Free memory was 35.1MB in the beginning and 85.4MB in the end (delta: -50.3MB). Peak memory consumption was 50.9MB. Max. memory is 16.1GB. [2022-07-21 14:59:18,172 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 69.2MB. Free memory was 52.3MB in the beginning and 52.2MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3051.41ms. Allocated memory was 69.2MB in the beginning and 155.2MB in the end (delta: 86.0MB). Free memory was 35.1MB in the beginning and 85.4MB in the end (delta: -50.3MB). Peak memory consumption was 50.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: val = val & 255UL [6668] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: val = val & 255UL [6668]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.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 2a992b8f7caf2083ee3b7e2acdd5fd118d6f91728d6dd0ef901811e301ef25da --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 14:59:19,907 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 14:59:19,909 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 14:59:19,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 14:59:19,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 14:59:19,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 14:59:19,956 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 14:59:19,958 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 14:59:19,960 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 14:59:19,964 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 14:59:19,965 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 14:59:19,967 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 14:59:19,968 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 14:59:19,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 14:59:19,971 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 14:59:19,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 14:59:19,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 14:59:19,978 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 14:59:19,980 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 14:59:19,985 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 14:59:19,987 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 14:59:19,988 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 14:59:19,990 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 14:59:19,990 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 14:59:19,992 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 14:59:19,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 14:59:19,998 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 14:59:19,999 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 14:59:20,000 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 14:59:20,000 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 14:59:20,001 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 14:59:20,001 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 14:59:20,003 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 14:59:20,004 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 14:59:20,005 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 14:59:20,006 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 14:59:20,006 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 14:59:20,006 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 14:59:20,007 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 14:59:20,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 14:59:20,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 14:59:20,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 14:59:20,014 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 14:59:20,053 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 14:59:20,054 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 14:59:20,055 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 14:59:20,055 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 14:59:20,056 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 14:59:20,056 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 14:59:20,057 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 14:59:20,057 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 14:59:20,057 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 14:59:20,058 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 14:59:20,058 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 14:59:20,058 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 14:59:20,059 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 14:59:20,059 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 14:59:20,059 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 14:59:20,059 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 14:59:20,060 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 14:59:20,060 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 14:59:20,060 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 14:59:20,060 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 14:59:20,061 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 14:59:20,061 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 14:59:20,061 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 14:59:20,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 14:59:20,061 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 14:59:20,062 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 14:59:20,062 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 14:59:20,062 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 14:59:20,062 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 14:59:20,062 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 14:59:20,063 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 14:59:20,063 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 14:59:20,063 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 14:59:20,063 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a992b8f7caf2083ee3b7e2acdd5fd118d6f91728d6dd0ef901811e301ef25da [2022-07-21 14:59:20,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 14:59:20,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 14:59:20,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 14:59:20,488 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 14:59:20,489 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 14:59:20,491 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2022-07-21 14:59:20,576 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60d00637b/c37e42b3a2ca413c8c5b82f4b3f9b8e6/FLAGd5f600e8a [2022-07-21 14:59:21,509 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 14:59:21,509 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2022-07-21 14:59:21,573 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60d00637b/c37e42b3a2ca413c8c5b82f4b3f9b8e6/FLAGd5f600e8a [2022-07-21 14:59:22,030 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60d00637b/c37e42b3a2ca413c8c5b82f4b3f9b8e6 [2022-07-21 14:59:22,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 14:59:22,033 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 14:59:22,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 14:59:22,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 14:59:22,042 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 14:59:22,043 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:59:22" (1/1) ... [2022-07-21 14:59:22,044 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10759cff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:59:22, skipping insertion in model container [2022-07-21 14:59:22,044 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:59:22" (1/1) ... [2022-07-21 14:59:22,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 14:59:22,205 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 14:59:24,596 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375187,375200] [2022-07-21 14:59:24,598 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375356,375369] [2022-07-21 14:59:24,599 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375523,375536] [2022-07-21 14:59:24,599 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375691,375704] [2022-07-21 14:59:24,607 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 14:59:24,637 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 14:59:24,726 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 14:59:25,016 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375187,375200] [2022-07-21 14:59:25,017 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375356,375369] [2022-07-21 14:59:25,017 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375523,375536] [2022-07-21 14:59:25,017 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375691,375704] [2022-07-21 14:59:25,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 14:59:25,051 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 14:59:25,368 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375187,375200] [2022-07-21 14:59:25,368 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375356,375369] [2022-07-21 14:59:25,369 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375523,375536] [2022-07-21 14:59:25,369 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375691,375704] [2022-07-21 14:59:25,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 14:59:25,545 INFO L208 MainTranslator]: Completed translation [2022-07-21 14:59:25,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:59:25 WrapperNode [2022-07-21 14:59:25,547 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 14:59:25,548 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 14:59:25,548 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 14:59:25,549 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 14:59:25,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:59:25" (1/1) ... [2022-07-21 14:59:25,652 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:59:25" (1/1) ... [2022-07-21 14:59:25,866 INFO L137 Inliner]: procedures = 465, calls = 2315, calls flagged for inlining = 231, calls inlined = 218, statements flattened = 6208 [2022-07-21 14:59:25,867 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 14:59:25,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 14:59:25,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 14:59:25,868 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 14:59:25,875 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:59:25" (1/1) ... [2022-07-21 14:59:25,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:59:25" (1/1) ... [2022-07-21 14:59:25,929 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:59:25" (1/1) ... [2022-07-21 14:59:25,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:59:25" (1/1) ... [2022-07-21 14:59:26,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:59:25" (1/1) ... [2022-07-21 14:59:26,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:59:25" (1/1) ... [2022-07-21 14:59:26,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:59:25" (1/1) ... [2022-07-21 14:59:26,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 14:59:26,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 14:59:26,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 14:59:26,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 14:59:26,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:59:25" (1/1) ... [2022-07-21 14:59:26,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 14:59:26,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 14:59:26,277 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 14:59:26,345 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 14:59:26,396 INFO L130 BoogieDeclarations]: Found specification of procedure softing_reset_chip [2022-07-21 14:59:26,396 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_reset_chip [2022-07-21 14:59:26,396 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-07-21 14:59:26,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_spin_of_softing [2022-07-21 14:59:26,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_spin_of_softing [2022-07-21 14:59:26,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 14:59:26,397 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 14:59:26,397 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-21 14:59:26,397 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-21 14:59:26,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 14:59:26,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 14:59:26,398 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-21 14:59:26,398 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-21 14:59:26,398 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2022-07-21 14:59:26,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2022-07-21 14:59:26,398 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-07-21 14:59:26,398 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-07-21 14:59:26,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 14:59:26,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 14:59:26,399 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2022-07-21 14:59:26,399 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2022-07-21 14:59:26,399 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-07-21 14:59:26,400 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-07-21 14:59:26,400 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-07-21 14:59:26,400 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-07-21 14:59:26,400 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2022-07-21 14:59:26,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2022-07-21 14:59:26,400 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-21 14:59:26,401 INFO L130 BoogieDeclarations]: Found specification of procedure softing_fct_cmd [2022-07-21 14:59:26,401 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_fct_cmd [2022-07-21 14:59:26,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-21 14:59:26,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-21 14:59:26,401 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-21 14:59:26,402 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-21 14:59:26,402 INFO L130 BoogieDeclarations]: Found specification of procedure canif_is_active [2022-07-21 14:59:26,402 INFO L138 BoogieDeclarations]: Found implementation of procedure canif_is_active [2022-07-21 14:59:26,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-21 14:59:26,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-21 14:59:26,407 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2022-07-21 14:59:26,407 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2022-07-21 14:59:26,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 14:59:26,408 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-21 14:59:26,408 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-21 14:59:26,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-21 14:59:26,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 14:59:26,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-21 14:59:26,408 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_open [2022-07-21 14:59:26,409 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_open [2022-07-21 14:59:26,409 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-21 14:59:26,409 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-21 14:59:26,409 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~C_INT [2022-07-21 14:59:26,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~C_INT [2022-07-21 14:59:26,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-21 14:59:26,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-21 14:59:26,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 14:59:26,410 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 14:59:26,410 INFO L130 BoogieDeclarations]: Found specification of procedure open_candev [2022-07-21 14:59:26,410 INFO L138 BoogieDeclarations]: Found implementation of procedure open_candev [2022-07-21 14:59:26,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-21 14:59:26,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-21 14:59:26,411 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_rx [2022-07-21 14:59:26,411 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_rx [2022-07-21 14:59:26,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-21 14:59:26,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-21 14:59:26,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 14:59:26,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-21 14:59:26,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-21 14:59:26,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-21 14:59:26,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-21 14:59:26,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-07-21 14:59:26,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-07-21 14:59:26,412 INFO L130 BoogieDeclarations]: Found specification of procedure softing_card_shutdown [2022-07-21 14:59:26,412 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_card_shutdown [2022-07-21 14:59:26,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 14:59:26,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-21 14:59:26,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-21 14:59:26,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 14:59:26,413 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-21 14:59:26,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-21 14:59:26,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-21 14:59:26,414 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-07-21 14:59:26,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-07-21 14:59:26,414 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 14:59:26,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 14:59:26,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-21 14:59:26,414 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_set [2022-07-21 14:59:26,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_set [2022-07-21 14:59:26,415 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_cleanup [2022-07-21 14:59:26,415 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_cleanup [2022-07-21 14:59:26,415 INFO L130 BoogieDeclarations]: Found specification of procedure softing_startstop [2022-07-21 14:59:26,415 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_startstop [2022-07-21 14:59:26,415 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-07-21 14:59:26,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-07-21 14:59:26,416 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_add_us [2022-07-21 14:59:26,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_add_us [2022-07-21 14:59:26,416 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2022-07-21 14:59:26,416 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2022-07-21 14:59:26,416 INFO L130 BoogieDeclarations]: Found specification of procedure softing_bootloader_command [2022-07-21 14:59:26,416 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_bootloader_command [2022-07-21 14:59:26,416 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2022-07-21 14:59:26,417 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2022-07-21 14:59:26,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_62 [2022-07-21 14:59:26,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_62 [2022-07-21 14:59:26,417 INFO L130 BoogieDeclarations]: Found specification of procedure softing_raw2ktime [2022-07-21 14:59:26,417 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_raw2ktime [2022-07-21 14:59:26,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-21 14:59:26,418 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2022-07-21 14:59:26,418 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2022-07-21 14:59:26,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 14:59:26,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 14:59:26,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-21 14:59:26,418 INFO L130 BoogieDeclarations]: Found specification of procedure store_output [2022-07-21 14:59:26,419 INFO L138 BoogieDeclarations]: Found implementation of procedure store_output [2022-07-21 14:59:26,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-21 14:59:26,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 14:59:26,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 14:59:26,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-21 14:59:26,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 14:59:26,420 INFO L130 BoogieDeclarations]: Found specification of procedure softing_pdev_probe [2022-07-21 14:59:26,420 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_pdev_probe [2022-07-21 14:59:26,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 14:59:26,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 14:59:26,420 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_stop [2022-07-21 14:59:26,420 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_stop [2022-07-21 14:59:26,420 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2022-07-21 14:59:26,421 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2022-07-21 14:59:26,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 14:59:26,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 14:59:26,421 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-21 14:59:26,421 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-21 14:59:26,421 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-07-21 14:59:26,421 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-07-21 14:59:26,422 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-21 14:59:26,422 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-21 14:59:26,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 14:59:26,422 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 14:59:26,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_softing_driver_exit_21_2 [2022-07-21 14:59:26,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_softing_driver_exit_21_2 [2022-07-21 14:59:26,422 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-21 14:59:26,423 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-21 14:59:26,423 INFO L130 BoogieDeclarations]: Found specification of procedure softing_set_reset_dpram [2022-07-21 14:59:26,423 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_set_reset_dpram [2022-07-21 14:59:26,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 14:59:26,423 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-21 14:59:26,423 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-21 14:59:26,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 14:59:26,424 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-07-21 14:59:26,424 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-07-21 14:59:26,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-21 14:59:26,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-21 14:59:26,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-21 14:59:26,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 14:59:26,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 14:59:26,424 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-21 14:59:26,425 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-21 14:59:26,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-21 14:59:26,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-21 14:59:26,425 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-07-21 14:59:26,425 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-07-21 14:59:26,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-07-21 14:59:26,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-07-21 14:59:26,426 INFO L130 BoogieDeclarations]: Found specification of procedure fw_parse [2022-07-21 14:59:26,426 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_parse [2022-07-21 14:59:26,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-21 14:59:26,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-21 14:59:26,426 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-07-21 14:59:26,426 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-07-21 14:59:26,426 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-21 14:59:26,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-21 14:59:26,427 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 14:59:26,427 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 14:59:26,427 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~C_ULONG~TO~C_LONG [2022-07-21 14:59:26,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~C_ULONG~TO~C_LONG [2022-07-21 14:59:26,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-21 14:59:26,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-21 14:59:26,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-21 14:59:26,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-21 14:59:26,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 14:59:26,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 14:59:26,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_61 [2022-07-21 14:59:26,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_61 [2022-07-21 14:59:26,429 INFO L130 BoogieDeclarations]: Found specification of procedure _softing_fct_cmd [2022-07-21 14:59:26,429 INFO L138 BoogieDeclarations]: Found implementation of procedure _softing_fct_cmd [2022-07-21 14:59:26,429 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2022-07-21 14:59:26,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2022-07-21 14:59:26,429 INFO L130 BoogieDeclarations]: Found specification of procedure softing_error_reporting [2022-07-21 14:59:26,429 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_error_reporting [2022-07-21 14:59:26,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-21 14:59:26,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-21 14:59:26,430 INFO L130 BoogieDeclarations]: Found specification of procedure softing_pdev_remove [2022-07-21 14:59:26,430 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_pdev_remove [2022-07-21 14:59:26,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_spin_of_softing [2022-07-21 14:59:26,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_spin_of_softing [2022-07-21 14:59:26,430 INFO L130 BoogieDeclarations]: Found specification of procedure softing_enable_irq [2022-07-21 14:59:26,430 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_enable_irq [2022-07-21 14:59:26,431 INFO L130 BoogieDeclarations]: Found specification of procedure softing_load_fw [2022-07-21 14:59:26,431 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_load_fw [2022-07-21 14:59:26,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-21 14:59:26,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-21 14:59:27,288 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 14:59:27,291 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 14:59:36,970 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 15:00:05,602 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-21 15:00:05,664 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 15:00:05,692 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 15:00:05,692 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-21 15:00:05,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:00:05 BoogieIcfgContainer [2022-07-21 15:00:05,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 15:00:05,699 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 15:00:05,699 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 15:00:05,704 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 15:00:05,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 02:59:22" (1/3) ... [2022-07-21 15:00:05,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f1f8c28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:00:05, skipping insertion in model container [2022-07-21 15:00:05,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:59:25" (2/3) ... [2022-07-21 15:00:05,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f1f8c28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:00:05, skipping insertion in model container [2022-07-21 15:00:05,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:00:05" (3/3) ... [2022-07-21 15:00:05,707 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2022-07-21 15:00:05,721 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 15:00:05,721 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-21 15:00:05,861 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 15:00:05,867 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@45b4a46a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7600fb42 [2022-07-21 15:00:05,867 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-21 15:00:05,878 INFO L276 IsEmpty]: Start isEmpty. Operand has 2170 states, 1530 states have (on average 1.3091503267973856) internal successors, (2003), 1544 states have internal predecessors, (2003), 555 states have call successors, (555), 83 states have call predecessors, (555), 82 states have return successors, (547), 547 states have call predecessors, (547), 547 states have call successors, (547) [2022-07-21 15:00:05,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2022-07-21 15:00:05,905 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:00:05,906 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:05,906 INFO L420 AbstractCegarLoop]: === Iteration 1 === 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 15:00:05,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:00:05,913 INFO L85 PathProgramCache]: Analyzing trace with hash 820136742, now seen corresponding path program 1 times [2022-07-21 15:00:05,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:00:05,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [516179239] [2022-07-21 15:00:05,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:00:05,933 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:00:05,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:00:05,939 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 15:00:05,947 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 15:00:07,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:00:07,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 1946 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:00:07,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:00:07,853 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 6669 trivial. 0 not checked. [2022-07-21 15:00:07,854 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:00:07,854 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:00:07,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [516179239] [2022-07-21 15:00:07,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [516179239] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:00:07,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:00:07,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:00:07,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089006075] [2022-07-21 15:00:07,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:00:07,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:00:07,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:00:07,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:00:07,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:00:07,903 INFO L87 Difference]: Start difference. First operand has 2170 states, 1530 states have (on average 1.3091503267973856) internal successors, (2003), 1544 states have internal predecessors, (2003), 555 states have call successors, (555), 83 states have call predecessors, (555), 82 states have return successors, (547), 547 states have call predecessors, (547), 547 states have call successors, (547) Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-07-21 15:00:08,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:00:08,561 INFO L93 Difference]: Finished difference Result 6170 states and 9026 transitions. [2022-07-21 15:00:08,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:00:08,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 457 [2022-07-21 15:00:08,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:00:08,612 INFO L225 Difference]: With dead ends: 6170 [2022-07-21 15:00:08,612 INFO L226 Difference]: Without dead ends: 4066 [2022-07-21 15:00:08,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 455 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 15:00:08,636 INFO L413 NwaCegarLoop]: 3614 mSDtfsCounter, 2729 mSDsluCounter, 3120 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2729 SdHoareTripleChecker+Valid, 6734 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 15:00:08,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2729 Valid, 6734 Invalid, 21 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 15:00:08,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4066 states. [2022-07-21 15:00:08,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4066 to 4040. [2022-07-21 15:00:08,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4040 states, 2875 states have (on average 1.304695652173913) internal successors, (3751), 2903 states have internal predecessors, (3751), 1003 states have call successors, (1003), 160 states have call predecessors, (1003), 159 states have return successors, (1044), 995 states have call predecessors, (1044), 999 states have call successors, (1044) [2022-07-21 15:00:08,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4040 states to 4040 states and 5798 transitions. [2022-07-21 15:00:08,953 INFO L78 Accepts]: Start accepts. Automaton has 4040 states and 5798 transitions. Word has length 457 [2022-07-21 15:00:08,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:00:08,955 INFO L495 AbstractCegarLoop]: Abstraction has 4040 states and 5798 transitions. [2022-07-21 15:00:08,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-07-21 15:00:08,955 INFO L276 IsEmpty]: Start isEmpty. Operand 4040 states and 5798 transitions. [2022-07-21 15:00:08,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2022-07-21 15:00:08,964 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:00:08,964 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:08,998 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 15:00:09,173 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 15:00:09,173 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 15:00:09,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:00:09,174 INFO L85 PathProgramCache]: Analyzing trace with hash -113970776, now seen corresponding path program 1 times [2022-07-21 15:00:09,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:00:09,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1200651610] [2022-07-21 15:00:09,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:00:09,177 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:00:09,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:00:09,179 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 15:00:09,181 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 15:00:10,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:00:10,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 1924 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:00:10,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:00:11,003 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 6669 trivial. 0 not checked. [2022-07-21 15:00:11,003 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:00:11,004 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:00:11,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1200651610] [2022-07-21 15:00:11,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1200651610] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:00:11,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:00:11,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:00:11,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702234012] [2022-07-21 15:00:11,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:00:11,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:00:11,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:00:11,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:00:11,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:00:11,008 INFO L87 Difference]: Start difference. First operand 4040 states and 5798 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (44), 3 states have call predecessors, (44), 3 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-07-21 15:00:11,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:00:11,645 INFO L93 Difference]: Finished difference Result 11787 states and 16935 transitions. [2022-07-21 15:00:11,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:00:11,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (44), 3 states have call predecessors, (44), 3 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 457 [2022-07-21 15:00:11,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:00:11,704 INFO L225 Difference]: With dead ends: 11787 [2022-07-21 15:00:11,705 INFO L226 Difference]: Without dead ends: 7830 [2022-07-21 15:00:11,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 455 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 15:00:11,732 INFO L413 NwaCegarLoop]: 3556 mSDtfsCounter, 2836 mSDsluCounter, 3016 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2836 SdHoareTripleChecker+Valid, 6572 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 15:00:11,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2836 Valid, 6572 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 15:00:11,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7830 states. [2022-07-21 15:00:12,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7830 to 7826. [2022-07-21 15:00:12,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7826 states, 5590 states have (on average 1.309660107334526) internal successors, (7321), 5638 states have internal predecessors, (7321), 1918 states have call successors, (1918), 316 states have call predecessors, (1918), 315 states have return successors, (2004), 1909 states have call predecessors, (2004), 1914 states have call successors, (2004) [2022-07-21 15:00:12,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7826 states to 7826 states and 11243 transitions. [2022-07-21 15:00:12,114 INFO L78 Accepts]: Start accepts. Automaton has 7826 states and 11243 transitions. Word has length 457 [2022-07-21 15:00:12,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:00:12,120 INFO L495 AbstractCegarLoop]: Abstraction has 7826 states and 11243 transitions. [2022-07-21 15:00:12,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (44), 3 states have call predecessors, (44), 3 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-07-21 15:00:12,120 INFO L276 IsEmpty]: Start isEmpty. Operand 7826 states and 11243 transitions. [2022-07-21 15:00:12,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2022-07-21 15:00:12,131 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:00:12,132 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:12,172 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 15:00:12,351 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 15:00:12,352 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:00:12,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:00:12,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1620499840, now seen corresponding path program 1 times [2022-07-21 15:00:12,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:00:12,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1431146230] [2022-07-21 15:00:12,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:00:12,355 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:00:12,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:00:12,357 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 15:00:12,359 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 15:00:13,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:00:13,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 2021 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:00:13,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:00:14,143 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 6669 trivial. 0 not checked. [2022-07-21 15:00:14,143 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:00:14,143 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:00:14,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1431146230] [2022-07-21 15:00:14,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1431146230] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:00:14,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:00:14,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:00:14,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68057195] [2022-07-21 15:00:14,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:00:14,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:00:14,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:00:14,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:00:14,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:00:14,146 INFO L87 Difference]: Start difference. First operand 7826 states and 11243 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (44), 3 states have call predecessors, (44), 3 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-07-21 15:00:14,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:00:14,820 INFO L93 Difference]: Finished difference Result 22844 states and 33121 transitions. [2022-07-21 15:00:14,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:00:14,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (44), 3 states have call predecessors, (44), 3 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 466 [2022-07-21 15:00:14,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:00:14,957 INFO L225 Difference]: With dead ends: 22844 [2022-07-21 15:00:14,958 INFO L226 Difference]: Without dead ends: 15101 [2022-07-21 15:00:15,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 464 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 15:00:15,011 INFO L413 NwaCegarLoop]: 3589 mSDtfsCounter, 2799 mSDsluCounter, 3059 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2799 SdHoareTripleChecker+Valid, 6648 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 15:00:15,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2799 Valid, 6648 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 15:00:15,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15101 states. [2022-07-21 15:00:15,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15101 to 15068. [2022-07-21 15:00:15,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15068 states, 10754 states have (on average 1.3099311883950158) internal successors, (14087), 10856 states have internal predecessors, (14087), 3690 states have call successors, (3690), 626 states have call predecessors, (3690), 621 states have return successors, (4162), 3657 states have call predecessors, (4162), 3686 states have call successors, (4162) [2022-07-21 15:00:15,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15068 states to 15068 states and 21939 transitions. [2022-07-21 15:00:15,935 INFO L78 Accepts]: Start accepts. Automaton has 15068 states and 21939 transitions. Word has length 466 [2022-07-21 15:00:15,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:00:15,936 INFO L495 AbstractCegarLoop]: Abstraction has 15068 states and 21939 transitions. [2022-07-21 15:00:15,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (44), 3 states have call predecessors, (44), 3 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-07-21 15:00:15,938 INFO L276 IsEmpty]: Start isEmpty. Operand 15068 states and 21939 transitions. [2022-07-21 15:00:15,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2022-07-21 15:00:15,950 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:00:15,950 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:15,997 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 15:00:16,171 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 15:00:16,172 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:00:16,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:00:16,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1698188113, now seen corresponding path program 1 times [2022-07-21 15:00:16,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:00:16,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [134428277] [2022-07-21 15:00:16,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:00:16,175 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:00:16,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:00:16,177 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 15:00:16,179 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 15:00:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:00:17,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 2141 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:00:17,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:00:17,949 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 6669 trivial. 0 not checked. [2022-07-21 15:00:17,949 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:00:17,949 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:00:17,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [134428277] [2022-07-21 15:00:17,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [134428277] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:00:17,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:00:17,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:00:17,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262493147] [2022-07-21 15:00:17,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:00:17,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:00:17,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:00:17,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:00:17,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:00:17,951 INFO L87 Difference]: Start difference. First operand 15068 states and 21939 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-07-21 15:00:19,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:00:19,558 INFO L93 Difference]: Finished difference Result 43418 states and 63015 transitions. [2022-07-21 15:00:19,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:00:19,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 486 [2022-07-21 15:00:19,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:00:19,719 INFO L225 Difference]: With dead ends: 43418 [2022-07-21 15:00:19,720 INFO L226 Difference]: Without dead ends: 28433 [2022-07-21 15:00:19,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 484 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 15:00:19,802 INFO L413 NwaCegarLoop]: 4082 mSDtfsCounter, 2642 mSDsluCounter, 2975 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2642 SdHoareTripleChecker+Valid, 7057 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-21 15:00:19,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2642 Valid, 7057 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-21 15:00:19,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28433 states. [2022-07-21 15:00:20,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28433 to 28392. [2022-07-21 15:00:20,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28392 states, 20158 states have (on average 1.3054370473261236) internal successors, (26315), 20376 states have internal predecessors, (26315), 7022 states have call successors, (7022), 1218 states have call predecessors, (7022), 1209 states have return successors, (7580), 6941 states have call predecessors, (7580), 7018 states have call successors, (7580) [2022-07-21 15:00:21,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28392 states to 28392 states and 40917 transitions. [2022-07-21 15:00:21,126 INFO L78 Accepts]: Start accepts. Automaton has 28392 states and 40917 transitions. Word has length 486 [2022-07-21 15:00:21,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:00:21,129 INFO L495 AbstractCegarLoop]: Abstraction has 28392 states and 40917 transitions. [2022-07-21 15:00:21,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-07-21 15:00:21,129 INFO L276 IsEmpty]: Start isEmpty. Operand 28392 states and 40917 transitions. [2022-07-21 15:00:21,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-07-21 15:00:21,139 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:00:21,140 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:21,191 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 15:00:21,362 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 15:00:21,363 INFO L420 AbstractCegarLoop]: === Iteration 5 === 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 15:00:21,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:00:21,364 INFO L85 PathProgramCache]: Analyzing trace with hash -78835710, now seen corresponding path program 1 times [2022-07-21 15:00:21,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:00:21,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1032284971] [2022-07-21 15:00:21,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:00:21,366 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:00:21,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:00:21,368 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 15:00:21,370 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 15:00:23,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:00:23,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 2100 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:00:23,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:00:23,519 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 6669 trivial. 0 not checked. [2022-07-21 15:00:23,520 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:00:23,520 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:00:23,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1032284971] [2022-07-21 15:00:23,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1032284971] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:00:23,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:00:23,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:00:23,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333767259] [2022-07-21 15:00:23,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:00:23,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:00:23,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:00:23,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:00:23,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:00:23,523 INFO L87 Difference]: Start difference. First operand 28392 states and 40917 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2022-07-21 15:00:25,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:00:25,030 INFO L93 Difference]: Finished difference Result 54939 states and 79146 transitions. [2022-07-21 15:00:25,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:00:25,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 484 [2022-07-21 15:00:25,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:00:25,240 INFO L225 Difference]: With dead ends: 54939 [2022-07-21 15:00:25,240 INFO L226 Difference]: Without dead ends: 26630 [2022-07-21 15:00:25,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 482 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 15:00:25,377 INFO L413 NwaCegarLoop]: 4915 mSDtfsCounter, 2843 mSDsluCounter, 3016 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2843 SdHoareTripleChecker+Valid, 7931 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 15:00:25,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2843 Valid, 7931 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 15:00:25,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26630 states. [2022-07-21 15:00:26,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26630 to 26591. [2022-07-21 15:00:26,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26591 states, 19016 states have (on average 1.3028502313840975) internal successors, (24775), 19229 states have internal predecessors, (24775), 6456 states have call successors, (6456), 1131 states have call predecessors, (6456), 1116 states have return successors, (6965), 6352 states have call predecessors, (6965), 6452 states have call successors, (6965) [2022-07-21 15:00:26,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26591 states to 26591 states and 38196 transitions. [2022-07-21 15:00:26,703 INFO L78 Accepts]: Start accepts. Automaton has 26591 states and 38196 transitions. Word has length 484 [2022-07-21 15:00:26,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:00:26,704 INFO L495 AbstractCegarLoop]: Abstraction has 26591 states and 38196 transitions. [2022-07-21 15:00:26,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2022-07-21 15:00:26,705 INFO L276 IsEmpty]: Start isEmpty. Operand 26591 states and 38196 transitions. [2022-07-21 15:00:26,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2022-07-21 15:00:26,711 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:00:26,712 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 39, 39, 39, 39, 39, 39, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:00:26,764 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 15:00:26,931 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 15:00:26,932 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 15:00:26,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:00:26,933 INFO L85 PathProgramCache]: Analyzing trace with hash -741269785, now seen corresponding path program 1 times [2022-07-21 15:00:26,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:00:26,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [726985063] [2022-07-21 15:00:26,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:00:26,934 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:00:26,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:00:26,936 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 15:00:26,939 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 15:00:28,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:00:28,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 2037 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:00:28,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:00:29,051 INFO L134 CoverageAnalysis]: Checked inductivity of 7189 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 7041 trivial. 0 not checked. [2022-07-21 15:00:29,052 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:00:29,052 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:00:29,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [726985063] [2022-07-21 15:00:29,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [726985063] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:00:29,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:00:29,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:00:29,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432257505] [2022-07-21 15:00:29,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:00:29,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:00:29,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:00:29,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:00:29,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:00:29,056 INFO L87 Difference]: Start difference. First operand 26591 states and 38196 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-07-21 15:00:30,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:00:30,414 INFO L93 Difference]: Finished difference Result 77226 states and 111141 transitions. [2022-07-21 15:00:30,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:00:30,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 513 [2022-07-21 15:00:30,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:00:30,991 INFO L225 Difference]: With dead ends: 77226 [2022-07-21 15:00:30,992 INFO L226 Difference]: Without dead ends: 51254 [2022-07-21 15:00:31,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 511 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 15:00:31,111 INFO L413 NwaCegarLoop]: 5524 mSDtfsCounter, 2809 mSDsluCounter, 3042 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2809 SdHoareTripleChecker+Valid, 8566 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 15:00:31,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2809 Valid, 8566 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 15:00:31,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51254 states. [2022-07-21 15:00:33,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51254 to 51250. [2022-07-21 15:00:33,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51250 states, 36632 states have (on average 1.3062076872679624) internal successors, (47849), 37000 states have internal predecessors, (47849), 12450 states have call successors, (12450), 2186 states have call predecessors, (12450), 2165 states have return successors, (13472), 12307 states have call predecessors, (13472), 12446 states have call successors, (13472) [2022-07-21 15:00:33,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51250 states to 51250 states and 73771 transitions. [2022-07-21 15:00:33,807 INFO L78 Accepts]: Start accepts. Automaton has 51250 states and 73771 transitions. Word has length 513 [2022-07-21 15:00:33,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:00:33,808 INFO L495 AbstractCegarLoop]: Abstraction has 51250 states and 73771 transitions. [2022-07-21 15:00:33,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-07-21 15:00:33,808 INFO L276 IsEmpty]: Start isEmpty. Operand 51250 states and 73771 transitions. [2022-07-21 15:00:33,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2022-07-21 15:00:33,816 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:00:33,816 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 39, 39, 39, 39, 39, 39, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:00:33,871 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 15:00:34,047 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 15:00:34,048 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 15:00:34,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:00:34,048 INFO L85 PathProgramCache]: Analyzing trace with hash -600721175, now seen corresponding path program 1 times [2022-07-21 15:00:34,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:00:34,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1855681508] [2022-07-21 15:00:34,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:00:34,050 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:00:34,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:00:34,052 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 15:00:34,054 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 15:00:35,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:00:35,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 2037 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:00:35,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:00:41,984 INFO L134 CoverageAnalysis]: Checked inductivity of 7189 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7189 trivial. 0 not checked. [2022-07-21 15:00:41,984 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:00:41,984 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:00:41,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1855681508] [2022-07-21 15:00:41,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1855681508] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:00:41,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:00:41,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 15:00:41,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928450201] [2022-07-21 15:00:41,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:00:41,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:00:41,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:00:41,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:00:41,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:00:41,987 INFO L87 Difference]: Start difference. First operand 51250 states and 73771 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 3 states have internal predecessors, (84), 1 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2022-07-21 15:00:43,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:00:43,172 INFO L93 Difference]: Finished difference Result 51256 states and 73776 transitions. [2022-07-21 15:00:43,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 15:00:43,173 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 3 states have internal predecessors, (84), 1 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 513 [2022-07-21 15:00:43,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:00:43,406 INFO L225 Difference]: With dead ends: 51256 [2022-07-21 15:00:43,407 INFO L226 Difference]: Without dead ends: 51254 [2022-07-21 15:00:43,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 509 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 15:00:43,441 INFO L413 NwaCegarLoop]: 3066 mSDtfsCounter, 2898 mSDsluCounter, 6120 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2899 SdHoareTripleChecker+Valid, 9186 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 15:00:43,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2899 Valid, 9186 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 15:00:43,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51254 states. [2022-07-21 15:00:45,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51254 to 51254. [2022-07-21 15:00:45,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51254 states, 36635 states have (on average 1.3061826122560394) internal successors, (47852), 37003 states have internal predecessors, (47852), 12450 states have call successors, (12450), 2187 states have call predecessors, (12450), 2166 states have return successors, (13472), 12307 states have call predecessors, (13472), 12446 states have call successors, (13472) [2022-07-21 15:00:45,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51254 states to 51254 states and 73774 transitions. [2022-07-21 15:00:45,326 INFO L78 Accepts]: Start accepts. Automaton has 51254 states and 73774 transitions. Word has length 513 [2022-07-21 15:00:45,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:00:45,327 INFO L495 AbstractCegarLoop]: Abstraction has 51254 states and 73774 transitions. [2022-07-21 15:00:45,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 3 states have internal predecessors, (84), 1 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2022-07-21 15:00:45,327 INFO L276 IsEmpty]: Start isEmpty. Operand 51254 states and 73774 transitions. [2022-07-21 15:00:45,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2022-07-21 15:00:45,335 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:00:45,335 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 39, 39, 39, 39, 39, 39, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:00:45,367 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 15:00:45,536 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 15:00:45,536 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:00:45,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:00:45,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1571622814, now seen corresponding path program 1 times [2022-07-21 15:00:45,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:00:45,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1489347885] [2022-07-21 15:00:45,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:00:45,538 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:00:45,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:00:45,539 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 15:00:45,543 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 15:00:46,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:00:46,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 2044 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:00:46,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:00:53,582 INFO L134 CoverageAnalysis]: Checked inductivity of 7191 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7189 trivial. 0 not checked. [2022-07-21 15:00:53,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 15:00:55,595 INFO L134 CoverageAnalysis]: Checked inductivity of 7191 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7189 trivial. 0 not checked. [2022-07-21 15:00:55,595 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:00:55,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1489347885] [2022-07-21 15:00:55,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1489347885] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 15:00:55,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 15:00:55,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 15:00:55,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261084555] [2022-07-21 15:00:55,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:00:55,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:00:55,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:00:55,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:00:55,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:00:55,598 INFO L87 Difference]: Start difference. First operand 51254 states and 73774 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-07-21 15:00:56,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:00:56,958 INFO L93 Difference]: Finished difference Result 51260 states and 73779 transitions. [2022-07-21 15:00:56,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:00:56,958 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 518 [2022-07-21 15:00:56,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:00:57,187 INFO L225 Difference]: With dead ends: 51260 [2022-07-21 15:00:57,188 INFO L226 Difference]: Without dead ends: 51258 [2022-07-21 15:00:57,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1037 GetRequests, 1029 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 15:00:57,236 INFO L413 NwaCegarLoop]: 3069 mSDtfsCounter, 2946 mSDsluCounter, 6119 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2956 SdHoareTripleChecker+Valid, 9188 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 15:00:57,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2956 Valid, 9188 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 15:00:57,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51258 states. [2022-07-21 15:00:58,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51258 to 51258. [2022-07-21 15:00:58,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51258 states, 36638 states have (on average 1.3061575413505104) internal successors, (47855), 37006 states have internal predecessors, (47855), 12450 states have call successors, (12450), 2188 states have call predecessors, (12450), 2167 states have return successors, (13472), 12307 states have call predecessors, (13472), 12446 states have call successors, (13472) [2022-07-21 15:00:59,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51258 states to 51258 states and 73777 transitions. [2022-07-21 15:00:59,142 INFO L78 Accepts]: Start accepts. Automaton has 51258 states and 73777 transitions. Word has length 518 [2022-07-21 15:00:59,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:00:59,142 INFO L495 AbstractCegarLoop]: Abstraction has 51258 states and 73777 transitions. [2022-07-21 15:00:59,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-07-21 15:00:59,143 INFO L276 IsEmpty]: Start isEmpty. Operand 51258 states and 73777 transitions. [2022-07-21 15:00:59,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 524 [2022-07-21 15:00:59,151 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:00:59,151 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 39, 39, 39, 39, 39, 39, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:00:59,190 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-07-21 15:00:59,367 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 15:00:59,368 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 15:00:59,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:00:59,368 INFO L85 PathProgramCache]: Analyzing trace with hash 838046793, now seen corresponding path program 1 times [2022-07-21 15:00:59,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:00:59,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1583335679] [2022-07-21 15:00:59,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:00:59,369 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:00:59,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:00:59,371 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 15:00:59,371 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 15:01:00,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:01:00,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 2051 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:01:00,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:01:07,201 INFO L134 CoverageAnalysis]: Checked inductivity of 7197 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7193 trivial. 0 not checked. [2022-07-21 15:01:07,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 15:01:09,212 INFO L134 CoverageAnalysis]: Checked inductivity of 7197 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7193 trivial. 0 not checked. [2022-07-21 15:01:09,213 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:01:09,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1583335679] [2022-07-21 15:01:09,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1583335679] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 15:01:09,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 15:01:09,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 15:01:09,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333757802] [2022-07-21 15:01:09,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:01:09,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:01:09,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:01:09,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:01:09,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:01:09,215 INFO L87 Difference]: Start difference. First operand 51258 states and 73777 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-07-21 15:01:10,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:01:10,568 INFO L93 Difference]: Finished difference Result 51264 states and 73782 transitions. [2022-07-21 15:01:10,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:01:10,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 523 [2022-07-21 15:01:10,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:01:10,766 INFO L225 Difference]: With dead ends: 51264 [2022-07-21 15:01:10,766 INFO L226 Difference]: Without dead ends: 51262 [2022-07-21 15:01:10,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1047 GetRequests, 1039 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 15:01:10,796 INFO L413 NwaCegarLoop]: 3069 mSDtfsCounter, 2946 mSDsluCounter, 6119 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2955 SdHoareTripleChecker+Valid, 9188 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 15:01:10,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2955 Valid, 9188 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 15:01:10,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51262 states. [2022-07-21 15:01:12,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51262 to 51262. [2022-07-21 15:01:12,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51262 states, 36641 states have (on average 1.306132474550367) internal successors, (47858), 37009 states have internal predecessors, (47858), 12450 states have call successors, (12450), 2189 states have call predecessors, (12450), 2168 states have return successors, (13472), 12307 states have call predecessors, (13472), 12446 states have call successors, (13472) [2022-07-21 15:01:12,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51262 states to 51262 states and 73780 transitions. [2022-07-21 15:01:12,432 INFO L78 Accepts]: Start accepts. Automaton has 51262 states and 73780 transitions. Word has length 523 [2022-07-21 15:01:12,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:01:12,433 INFO L495 AbstractCegarLoop]: Abstraction has 51262 states and 73780 transitions. [2022-07-21 15:01:12,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-07-21 15:01:12,433 INFO L276 IsEmpty]: Start isEmpty. Operand 51262 states and 73780 transitions. [2022-07-21 15:01:12,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 541 [2022-07-21 15:01:12,444 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:01:12,444 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 39, 39, 39, 39, 39, 39, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:01:12,494 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 15:01:12,663 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 15:01:12,664 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 15:01:12,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:01:12,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1832518006, now seen corresponding path program 1 times [2022-07-21 15:01:12,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:01:12,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [858678876] [2022-07-21 15:01:12,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:01:12,666 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:01:12,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:01:12,667 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 15:01:12,669 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 15:01:13,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:01:14,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 2106 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:01:14,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:01:14,177 INFO L134 CoverageAnalysis]: Checked inductivity of 7219 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 7063 trivial. 0 not checked. [2022-07-21 15:01:14,178 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:01:14,178 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:01:14,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [858678876] [2022-07-21 15:01:14,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [858678876] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:01:14,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:01:14,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:01:14,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129892931] [2022-07-21 15:01:14,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:01:14,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:01:14,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:01:14,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:01:14,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:01:14,180 INFO L87 Difference]: Start difference. First operand 51262 states and 73780 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2022-07-21 15:01:16,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:01:16,211 INFO L93 Difference]: Finished difference Result 126614 states and 182378 transitions. [2022-07-21 15:01:16,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:01:16,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) Word has length 540 [2022-07-21 15:01:16,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:01:16,662 INFO L225 Difference]: With dead ends: 126614 [2022-07-21 15:01:16,663 INFO L226 Difference]: Without dead ends: 75971 [2022-07-21 15:01:16,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 539 GetRequests, 538 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 15:01:16,863 INFO L413 NwaCegarLoop]: 5890 mSDtfsCounter, 2839 mSDsluCounter, 3044 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2839 SdHoareTripleChecker+Valid, 8934 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 15:01:16,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2839 Valid, 8934 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 15:01:16,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75971 states. [2022-07-21 15:01:19,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75971 to 75937. [2022-07-21 15:01:19,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75937 states, 54273 states have (on average 1.3072430121791683) internal successors, (70948), 54796 states have internal predecessors, (70948), 18444 states have call successors, (18444), 3244 states have call predecessors, (18444), 3217 states have return successors, (19979), 18262 states have call predecessors, (19979), 18440 states have call successors, (19979) [2022-07-21 15:01:19,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75937 states to 75937 states and 109371 transitions. [2022-07-21 15:01:19,417 INFO L78 Accepts]: Start accepts. Automaton has 75937 states and 109371 transitions. Word has length 540 [2022-07-21 15:01:19,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:01:19,418 INFO L495 AbstractCegarLoop]: Abstraction has 75937 states and 109371 transitions. [2022-07-21 15:01:19,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2022-07-21 15:01:19,418 INFO L276 IsEmpty]: Start isEmpty. Operand 75937 states and 109371 transitions. [2022-07-21 15:01:19,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2022-07-21 15:01:19,429 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:01:19,429 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 39, 39, 39, 39, 39, 39, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:01:19,475 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 15:01:19,647 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 15:01:19,648 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 15:01:19,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:01:19,648 INFO L85 PathProgramCache]: Analyzing trace with hash 378364034, now seen corresponding path program 1 times [2022-07-21 15:01:19,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:01:19,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1220719699] [2022-07-21 15:01:19,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:01:19,650 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:01:19,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:01:19,651 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 15:01:19,652 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 15:01:20,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:01:21,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 2058 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:01:21,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:01:27,436 INFO L134 CoverageAnalysis]: Checked inductivity of 7207 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7201 trivial. 0 not checked. [2022-07-21 15:01:27,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 15:01:29,577 INFO L134 CoverageAnalysis]: Checked inductivity of 7207 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7201 trivial. 0 not checked. [2022-07-21 15:01:29,577 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:01:29,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1220719699] [2022-07-21 15:01:29,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1220719699] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 15:01:29,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 15:01:29,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 15:01:29,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031895799] [2022-07-21 15:01:29,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:01:29,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:01:29,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:01:29,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:01:29,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:01:29,579 INFO L87 Difference]: Start difference. First operand 75937 states and 109371 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-07-21 15:01:31,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:01:31,445 INFO L93 Difference]: Finished difference Result 75943 states and 109376 transitions. [2022-07-21 15:01:31,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:01:31,445 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 528 [2022-07-21 15:01:31,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:01:31,874 INFO L225 Difference]: With dead ends: 75943 [2022-07-21 15:01:31,875 INFO L226 Difference]: Without dead ends: 75941 [2022-07-21 15:01:31,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1057 GetRequests, 1049 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 15:01:31,907 INFO L413 NwaCegarLoop]: 3069 mSDtfsCounter, 2946 mSDsluCounter, 6119 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2954 SdHoareTripleChecker+Valid, 9188 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 15:01:31,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2954 Valid, 9188 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 15:01:31,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75941 states. [2022-07-21 15:01:34,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75941 to 75941. [2022-07-21 15:01:34,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75941 states, 54276 states have (on average 1.3072260299211438) internal successors, (70951), 54799 states have internal predecessors, (70951), 18444 states have call successors, (18444), 3245 states have call predecessors, (18444), 3218 states have return successors, (19979), 18262 states have call predecessors, (19979), 18440 states have call successors, (19979) [2022-07-21 15:01:34,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75941 states to 75941 states and 109374 transitions. [2022-07-21 15:01:34,849 INFO L78 Accepts]: Start accepts. Automaton has 75941 states and 109374 transitions. Word has length 528 [2022-07-21 15:01:34,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:01:34,850 INFO L495 AbstractCegarLoop]: Abstraction has 75941 states and 109374 transitions. [2022-07-21 15:01:34,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-07-21 15:01:34,851 INFO L276 IsEmpty]: Start isEmpty. Operand 75941 states and 109374 transitions. [2022-07-21 15:01:34,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2022-07-21 15:01:34,862 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:01:34,862 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 39, 39, 39, 39, 39, 39, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:01:34,916 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 15:01:35,083 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 15:01:35,084 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 15:01:35,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:01:35,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1483446359, now seen corresponding path program 1 times [2022-07-21 15:01:35,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:01:35,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1170245012] [2022-07-21 15:01:35,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:01:35,086 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:01:35,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:01:35,088 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 15:01:35,090 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 15:01:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:01:36,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 2065 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:01:36,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:01:43,163 INFO L134 CoverageAnalysis]: Checked inductivity of 7221 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7213 trivial. 0 not checked. [2022-07-21 15:01:43,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 15:01:45,198 INFO L134 CoverageAnalysis]: Checked inductivity of 7221 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7213 trivial. 0 not checked. [2022-07-21 15:01:45,198 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:01:45,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1170245012] [2022-07-21 15:01:45,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1170245012] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 15:01:45,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 15:01:45,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 15:01:45,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897251222] [2022-07-21 15:01:45,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:01:45,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:01:45,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:01:45,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:01:45,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:01:45,200 INFO L87 Difference]: Start difference. First operand 75941 states and 109374 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-07-21 15:01:47,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:01:47,308 INFO L93 Difference]: Finished difference Result 75947 states and 109379 transitions. [2022-07-21 15:01:47,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:01:47,308 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 533 [2022-07-21 15:01:47,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:01:47,653 INFO L225 Difference]: With dead ends: 75947 [2022-07-21 15:01:47,653 INFO L226 Difference]: Without dead ends: 75945 [2022-07-21 15:01:47,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1067 GetRequests, 1059 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 15:01:47,691 INFO L413 NwaCegarLoop]: 3069 mSDtfsCounter, 2946 mSDsluCounter, 6119 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2953 SdHoareTripleChecker+Valid, 9188 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 15:01:47,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2953 Valid, 9188 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 15:01:47,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75945 states. [2022-07-21 15:01:49,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75945 to 75945. [2022-07-21 15:01:49,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75945 states, 54279 states have (on average 1.307209049540338) internal successors, (70954), 54802 states have internal predecessors, (70954), 18444 states have call successors, (18444), 3246 states have call predecessors, (18444), 3219 states have return successors, (19979), 18262 states have call predecessors, (19979), 18440 states have call successors, (19979) [2022-07-21 15:01:50,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75945 states to 75945 states and 109377 transitions. [2022-07-21 15:01:50,438 INFO L78 Accepts]: Start accepts. Automaton has 75945 states and 109377 transitions. Word has length 533 [2022-07-21 15:01:50,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:01:50,439 INFO L495 AbstractCegarLoop]: Abstraction has 75945 states and 109377 transitions. [2022-07-21 15:01:50,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-07-21 15:01:50,439 INFO L276 IsEmpty]: Start isEmpty. Operand 75945 states and 109377 transitions. [2022-07-21 15:01:50,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 539 [2022-07-21 15:01:50,450 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:01:50,450 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 39, 39, 39, 39, 39, 39, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:01:50,482 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 15:01:50,659 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 15:01:50,660 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 15:01:50,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:01:50,660 INFO L85 PathProgramCache]: Analyzing trace with hash -679225182, now seen corresponding path program 1 times [2022-07-21 15:01:50,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:01:50,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [821706785] [2022-07-21 15:01:50,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:01:50,662 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:01:50,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:01:50,663 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 15:01:50,663 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 15:01:51,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:01:52,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 2072 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:01:52,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:01:58,510 INFO L134 CoverageAnalysis]: Checked inductivity of 7239 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 7229 trivial. 0 not checked. [2022-07-21 15:01:58,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 15:02:00,516 INFO L134 CoverageAnalysis]: Checked inductivity of 7239 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 7229 trivial. 0 not checked. [2022-07-21 15:02:00,516 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:02:00,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [821706785] [2022-07-21 15:02:00,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [821706785] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 15:02:00,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 15:02:00,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 15:02:00,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929763659] [2022-07-21 15:02:00,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:02:00,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:02:00,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:02:00,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:02:00,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:02:00,518 INFO L87 Difference]: Start difference. First operand 75945 states and 109377 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-07-21 15:02:02,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:02:02,659 INFO L93 Difference]: Finished difference Result 75951 states and 109382 transitions. [2022-07-21 15:02:02,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:02:02,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 538 [2022-07-21 15:02:02,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:02:02,974 INFO L225 Difference]: With dead ends: 75951 [2022-07-21 15:02:02,974 INFO L226 Difference]: Without dead ends: 75949 [2022-07-21 15:02:03,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1077 GetRequests, 1069 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 15:02:03,008 INFO L413 NwaCegarLoop]: 3069 mSDtfsCounter, 2946 mSDsluCounter, 6119 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2952 SdHoareTripleChecker+Valid, 9188 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 15:02:03,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2952 Valid, 9188 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 15:02:03,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75949 states. [2022-07-21 15:02:05,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75949 to 75949. [2022-07-21 15:02:05,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75949 states, 54282 states have (on average 1.3071920710364393) internal successors, (70957), 54805 states have internal predecessors, (70957), 18444 states have call successors, (18444), 3247 states have call predecessors, (18444), 3220 states have return successors, (19979), 18262 states have call predecessors, (19979), 18440 states have call successors, (19979) [2022-07-21 15:02:05,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75949 states to 75949 states and 109380 transitions. [2022-07-21 15:02:05,664 INFO L78 Accepts]: Start accepts. Automaton has 75949 states and 109380 transitions. Word has length 538 [2022-07-21 15:02:05,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:02:05,664 INFO L495 AbstractCegarLoop]: Abstraction has 75949 states and 109380 transitions. [2022-07-21 15:02:05,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-07-21 15:02:05,665 INFO L276 IsEmpty]: Start isEmpty. Operand 75949 states and 109380 transitions. [2022-07-21 15:02:05,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2022-07-21 15:02:05,674 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:02:05,674 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 39, 39, 39, 39, 39, 39, 7, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:02:05,708 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 15:02:05,875 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 15:02:05,875 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 15:02:05,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:02:05,876 INFO L85 PathProgramCache]: Analyzing trace with hash 213791497, now seen corresponding path program 1 times [2022-07-21 15:02:05,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:02:05,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [748890354] [2022-07-21 15:02:05,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:02:05,877 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:02:05,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:02:05,878 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 15:02:05,879 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 15:02:07,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:02:07,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 2079 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:02:07,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:02:14,332 INFO L134 CoverageAnalysis]: Checked inductivity of 7261 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 7249 trivial. 0 not checked. [2022-07-21 15:02:14,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 15:02:16,406 INFO L134 CoverageAnalysis]: Checked inductivity of 7261 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 7249 trivial. 0 not checked. [2022-07-21 15:02:16,407 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:02:16,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [748890354] [2022-07-21 15:02:16,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [748890354] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 15:02:16,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 15:02:16,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 15:02:16,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742807143] [2022-07-21 15:02:16,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:02:16,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:02:16,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:02:16,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:02:16,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:02:16,409 INFO L87 Difference]: Start difference. First operand 75949 states and 109380 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-07-21 15:02:18,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:02:18,498 INFO L93 Difference]: Finished difference Result 75955 states and 109385 transitions. [2022-07-21 15:02:18,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:02:18,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 543 [2022-07-21 15:02:18,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:02:18,776 INFO L225 Difference]: With dead ends: 75955 [2022-07-21 15:02:18,777 INFO L226 Difference]: Without dead ends: 75953 [2022-07-21 15:02:18,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1087 GetRequests, 1079 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 15:02:18,809 INFO L413 NwaCegarLoop]: 3069 mSDtfsCounter, 2946 mSDsluCounter, 6119 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2951 SdHoareTripleChecker+Valid, 9188 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 15:02:18,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2951 Valid, 9188 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 15:02:18,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75953 states. [2022-07-21 15:02:21,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75953 to 75953. [2022-07-21 15:02:21,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75953 states, 54285 states have (on average 1.307175094409137) internal successors, (70960), 54808 states have internal predecessors, (70960), 18444 states have call successors, (18444), 3248 states have call predecessors, (18444), 3221 states have return successors, (19979), 18262 states have call predecessors, (19979), 18440 states have call successors, (19979) [2022-07-21 15:02:21,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75953 states to 75953 states and 109383 transitions. [2022-07-21 15:02:21,834 INFO L78 Accepts]: Start accepts. Automaton has 75953 states and 109383 transitions. Word has length 543 [2022-07-21 15:02:21,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:02:21,834 INFO L495 AbstractCegarLoop]: Abstraction has 75953 states and 109383 transitions. [2022-07-21 15:02:21,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-07-21 15:02:21,835 INFO L276 IsEmpty]: Start isEmpty. Operand 75953 states and 109383 transitions. [2022-07-21 15:02:21,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2022-07-21 15:02:21,847 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:02:21,847 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 39, 39, 39, 39, 39, 39, 8, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:02:21,883 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 15:02:22,047 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 15:02:22,048 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:02:22,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:02:22,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1338792130, now seen corresponding path program 1 times [2022-07-21 15:02:22,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:02:22,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1759177312] [2022-07-21 15:02:22,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:02:22,050 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:02:22,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:02:22,052 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 15:02:22,053 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 15:02:23,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:02:23,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 2086 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:02:23,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:02:30,082 INFO L134 CoverageAnalysis]: Checked inductivity of 7287 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 7273 trivial. 0 not checked. [2022-07-21 15:02:30,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 15:02:31,997 INFO L134 CoverageAnalysis]: Checked inductivity of 7287 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 7273 trivial. 0 not checked. [2022-07-21 15:02:31,997 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:02:31,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1759177312] [2022-07-21 15:02:31,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1759177312] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 15:02:31,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 15:02:31,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 15:02:31,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137190980] [2022-07-21 15:02:31,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:02:31,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:02:31,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:02:31,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:02:31,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:02:32,000 INFO L87 Difference]: Start difference. First operand 75953 states and 109383 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-07-21 15:02:34,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:02:34,107 INFO L93 Difference]: Finished difference Result 75959 states and 109388 transitions. [2022-07-21 15:02:34,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 15:02:34,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 548 [2022-07-21 15:02:34,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:02:34,427 INFO L225 Difference]: With dead ends: 75959 [2022-07-21 15:02:34,427 INFO L226 Difference]: Without dead ends: 75957 [2022-07-21 15:02:34,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1097 GetRequests, 1089 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 15:02:34,469 INFO L413 NwaCegarLoop]: 3069 mSDtfsCounter, 2946 mSDsluCounter, 6119 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2950 SdHoareTripleChecker+Valid, 9188 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 15:02:34,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2950 Valid, 9188 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 15:02:34,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75957 states. [2022-07-21 15:02:37,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75957 to 75957. [2022-07-21 15:02:37,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75957 states, 54288 states have (on average 1.3071581196581197) internal successors, (70963), 54811 states have internal predecessors, (70963), 18444 states have call successors, (18444), 3249 states have call predecessors, (18444), 3222 states have return successors, (19979), 18262 states have call predecessors, (19979), 18440 states have call successors, (19979) [2022-07-21 15:02:37,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75957 states to 75957 states and 109386 transitions. [2022-07-21 15:02:37,622 INFO L78 Accepts]: Start accepts. Automaton has 75957 states and 109386 transitions. Word has length 548 [2022-07-21 15:02:37,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:02:37,623 INFO L495 AbstractCegarLoop]: Abstraction has 75957 states and 109386 transitions. [2022-07-21 15:02:37,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-07-21 15:02:37,623 INFO L276 IsEmpty]: Start isEmpty. Operand 75957 states and 109386 transitions. [2022-07-21 15:02:37,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2022-07-21 15:02:37,636 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:02:37,636 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 39, 39, 39, 39, 39, 39, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:02:37,671 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 15:02:37,836 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 15:02:37,837 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 15:02:37,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:02:37,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1804543087, now seen corresponding path program 1 times [2022-07-21 15:02:37,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:02:37,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1411440434] [2022-07-21 15:02:37,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:02:37,839 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:02:37,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:02:37,841 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 15:02:37,843 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 15:02:39,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:02:39,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 2230 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:02:39,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:02:39,915 INFO L134 CoverageAnalysis]: Checked inductivity of 7198 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 6921 trivial. 0 not checked. [2022-07-21 15:02:39,915 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:02:39,915 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:02:39,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1411440434] [2022-07-21 15:02:39,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1411440434] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:02:39,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:02:39,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:02:39,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663711311] [2022-07-21 15:02:39,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:02:39,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:02:39,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:02:39,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:02:39,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:02:39,917 INFO L87 Difference]: Start difference. First operand 75957 states and 109386 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-07-21 15:02:44,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:02:44,156 INFO L93 Difference]: Finished difference Result 184377 states and 265753 transitions. [2022-07-21 15:02:44,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:02:44,156 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 548 [2022-07-21 15:02:44,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:02:44,676 INFO L225 Difference]: With dead ends: 184377 [2022-07-21 15:02:44,676 INFO L226 Difference]: Without dead ends: 109039 [2022-07-21 15:02:44,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 546 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 15:02:44,924 INFO L413 NwaCegarLoop]: 5830 mSDtfsCounter, 2814 mSDsluCounter, 3020 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2814 SdHoareTripleChecker+Valid, 8850 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 15:02:44,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2814 Valid, 8850 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 15:02:45,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109039 states.