./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 f4b24e32 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-?-f4b24e3 [2022-07-14 04:07:18,962 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 04:07:18,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 04:07:19,008 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 04:07:19,008 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 04:07:19,009 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 04:07:19,012 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 04:07:19,014 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 04:07:19,016 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 04:07:19,019 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 04:07:19,020 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 04:07:19,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 04:07:19,021 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 04:07:19,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 04:07:19,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 04:07:19,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 04:07:19,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 04:07:19,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 04:07:19,030 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 04:07:19,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 04:07:19,035 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 04:07:19,036 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 04:07:19,036 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 04:07:19,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 04:07:19,038 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 04:07:19,043 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 04:07:19,043 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 04:07:19,044 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 04:07:19,044 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 04:07:19,045 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 04:07:19,046 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 04:07:19,046 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 04:07:19,047 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 04:07:19,047 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 04:07:19,048 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 04:07:19,049 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 04:07:19,049 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 04:07:19,050 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 04:07:19,050 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 04:07:19,050 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 04:07:19,051 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 04:07:19,052 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 04:07:19,053 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 04:07:19,084 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 04:07:19,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 04:07:19,085 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 04:07:19,085 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 04:07:19,086 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 04:07:19,086 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 04:07:19,086 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 04:07:19,087 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 04:07:19,087 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 04:07:19,087 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 04:07:19,088 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 04:07:19,088 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 04:07:19,088 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 04:07:19,088 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 04:07:19,088 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 04:07:19,088 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 04:07:19,089 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 04:07:19,089 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 04:07:19,089 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 04:07:19,089 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 04:07:19,089 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 04:07:19,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 04:07:19,090 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 04:07:19,090 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 04:07:19,090 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 04:07:19,090 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 04:07:19,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 04:07:19,090 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 04:07:19,091 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 04:07:19,091 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 04:07:19,091 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a992b8f7caf2083ee3b7e2acdd5fd118d6f91728d6dd0ef901811e301ef25da [2022-07-14 04:07:19,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 04:07:19,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 04:07:19,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 04:07:19,319 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 04:07:19,320 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 04:07:19,321 INFO L432 ainManager$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 [2022-07-14 04:07:19,383 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69386e5bc/b08c18d4de9647c0912c3ccc2e55ea90/FLAG54366b1bc [2022-07-14 04:07:20,030 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 04:07:20,031 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 [2022-07-14 04:07:20,071 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69386e5bc/b08c18d4de9647c0912c3ccc2e55ea90/FLAG54366b1bc [2022-07-14 04:07:20,147 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69386e5bc/b08c18d4de9647c0912c3ccc2e55ea90 [2022-07-14 04:07:20,149 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 04:07:20,151 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 04:07:20,153 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 04:07:20,153 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 04:07:20,155 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 04:07:20,155 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 04:07:20" (1/1) ... [2022-07-14 04:07:20,156 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73307691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:07:20, skipping insertion in model container [2022-07-14 04:07:20,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 04:07:20" (1/1) ... [2022-07-14 04:07:20,160 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 04:07:20,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 04:07:21,942 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] [2022-07-14 04:07:21,944 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] [2022-07-14 04:07:21,945 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] [2022-07-14 04:07:21,945 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] [2022-07-14 04:07:21,960 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 04:07:22,001 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 04:07:22,153 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) [2022-07-14 04:07:22,161 INFO L158 Benchmark]: Toolchain (without parser) took 2009.16ms. Allocated memory was 111.1MB in the beginning and 172.0MB in the end (delta: 60.8MB). Free memory was 82.6MB in the beginning and 100.4MB in the end (delta: -17.8MB). Peak memory consumption was 72.2MB. Max. memory is 16.1GB. [2022-07-14 04:07:22,162 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 79.7MB. Free memory was 58.4MB in the beginning and 58.4MB in the end (delta: 27.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 04:07:22,163 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2006.74ms. Allocated memory was 111.1MB in the beginning and 172.0MB in the end (delta: 60.8MB). Free memory was 82.4MB in the beginning and 100.6MB in the end (delta: -18.2MB). Peak memory consumption was 72.2MB. Max. memory is 16.1GB. [2022-07-14 04:07:22,164 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 79.7MB. Free memory was 58.4MB in the beginning and 58.4MB in the end (delta: 27.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2006.74ms. Allocated memory was 111.1MB in the beginning and 172.0MB in the end (delta: 60.8MB). Free memory was 82.4MB in the beginning and 100.6MB in the end (delta: -18.2MB). Peak memory consumption was 72.2MB. 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-?-f4b24e3 [2022-07-14 04:07:23,721 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 04:07:23,724 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 04:07:23,766 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 04:07:23,767 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 04:07:23,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 04:07:23,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 04:07:23,773 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 04:07:23,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 04:07:23,778 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 04:07:23,778 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 04:07:23,780 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 04:07:23,780 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 04:07:23,782 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 04:07:23,783 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 04:07:23,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 04:07:23,787 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 04:07:23,788 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 04:07:23,789 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 04:07:23,794 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 04:07:23,795 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 04:07:23,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 04:07:23,797 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 04:07:23,798 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 04:07:23,799 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 04:07:23,804 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 04:07:23,804 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 04:07:23,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 04:07:23,805 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 04:07:23,806 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 04:07:23,806 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 04:07:23,807 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 04:07:23,808 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 04:07:23,809 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 04:07:23,810 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 04:07:23,811 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 04:07:23,811 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 04:07:23,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 04:07:23,812 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 04:07:23,812 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 04:07:23,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 04:07:23,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 04:07:23,828 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-14 04:07:23,848 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 04:07:23,849 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 04:07:23,849 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 04:07:23,849 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 04:07:23,850 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 04:07:23,850 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 04:07:23,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 04:07:23,851 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 04:07:23,851 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 04:07:23,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 04:07:23,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 04:07:23,852 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 04:07:23,852 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 04:07:23,852 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 04:07:23,853 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 04:07:23,853 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-14 04:07:23,853 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-14 04:07:23,853 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 04:07:23,853 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 04:07:23,853 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 04:07:23,854 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 04:07:23,854 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 04:07:23,854 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 04:07:23,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 04:07:23,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 04:07:23,854 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 04:07:23,855 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 04:07:23,855 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-14 04:07:23,855 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-14 04:07:23,855 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 04:07:23,855 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 04:07:23,855 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 04:07:23,856 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-14 04:07:23,856 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a992b8f7caf2083ee3b7e2acdd5fd118d6f91728d6dd0ef901811e301ef25da [2022-07-14 04:07:24,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 04:07:24,123 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 04:07:24,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 04:07:24,125 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 04:07:24,125 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 04:07:24,126 INFO L432 ainManager$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 [2022-07-14 04:07:24,180 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27da47340/a9b7e69313584948b99937e385eaea0d/FLAG2e1031421 [2022-07-14 04:07:24,839 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 04:07:24,840 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 [2022-07-14 04:07:24,891 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27da47340/a9b7e69313584948b99937e385eaea0d/FLAG2e1031421 [2022-07-14 04:07:24,920 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27da47340/a9b7e69313584948b99937e385eaea0d [2022-07-14 04:07:24,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 04:07:24,924 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 04:07:24,926 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 04:07:24,926 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 04:07:24,928 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 04:07:24,929 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 04:07:24" (1/1) ... [2022-07-14 04:07:24,930 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28069a0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:07:24, skipping insertion in model container [2022-07-14 04:07:24,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 04:07:24" (1/1) ... [2022-07-14 04:07:24,935 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 04:07:25,063 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 04:07:26,852 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375187,375200] [2022-07-14 04:07:26,854 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] [2022-07-14 04:07:26,855 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375523,375536] [2022-07-14 04:07:26,855 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375691,375704] [2022-07-14 04:07:26,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 04:07:26,917 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-14 04:07:26,982 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 04:07:27,196 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] [2022-07-14 04:07:27,197 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] [2022-07-14 04:07:27,198 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] [2022-07-14 04:07:27,198 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] [2022-07-14 04:07:27,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 04:07:27,223 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 04:07:27,492 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] [2022-07-14 04:07:27,493 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] [2022-07-14 04:07:27,493 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] [2022-07-14 04:07:27,494 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] [2022-07-14 04:07:27,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 04:07:27,646 INFO L208 MainTranslator]: Completed translation [2022-07-14 04:07:27,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:07:27 WrapperNode [2022-07-14 04:07:27,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 04:07:27,648 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 04:07:27,648 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 04:07:27,648 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 04:07:27,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:07:27" (1/1) ... [2022-07-14 04:07:27,745 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:07:27" (1/1) ... [2022-07-14 04:07:27,873 INFO L137 Inliner]: procedures = 465, calls = 2315, calls flagged for inlining = 231, calls inlined = 218, statements flattened = 6208 [2022-07-14 04:07:27,873 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 04:07:27,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 04:07:27,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 04:07:27,874 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 04:07:27,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:07:27" (1/1) ... [2022-07-14 04:07:27,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:07:27" (1/1) ... [2022-07-14 04:07:27,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:07:27" (1/1) ... [2022-07-14 04:07:27,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:07:27" (1/1) ... [2022-07-14 04:07:28,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:07:27" (1/1) ... [2022-07-14 04:07:28,061 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:07:27" (1/1) ... [2022-07-14 04:07:28,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:07:27" (1/1) ... [2022-07-14 04:07:28,117 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 04:07:28,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 04:07:28,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 04:07:28,118 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 04:07:28,119 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:07:27" (1/1) ... [2022-07-14 04:07:28,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 04:07:28,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 04:07:28,141 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) [2022-07-14 04:07:28,161 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 [2022-07-14 04:07:28,174 INFO L130 BoogieDeclarations]: Found specification of procedure softing_reset_chip [2022-07-14 04:07:28,174 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_reset_chip [2022-07-14 04:07:28,174 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-07-14 04:07:28,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_spin_of_softing [2022-07-14 04:07:28,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_spin_of_softing [2022-07-14 04:07:28,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-14 04:07:28,175 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-14 04:07:28,175 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-14 04:07:28,175 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-14 04:07:28,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 04:07:28,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 04:07:28,175 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-14 04:07:28,175 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-14 04:07:28,176 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2022-07-14 04:07:28,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2022-07-14 04:07:28,176 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-07-14 04:07:28,176 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-07-14 04:07:28,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-14 04:07:28,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-14 04:07:28,176 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2022-07-14 04:07:28,176 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2022-07-14 04:07:28,177 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-07-14 04:07:28,177 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-07-14 04:07:28,177 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-07-14 04:07:28,177 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-07-14 04:07:28,177 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2022-07-14 04:07:28,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2022-07-14 04:07:28,177 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-14 04:07:28,178 INFO L130 BoogieDeclarations]: Found specification of procedure softing_fct_cmd [2022-07-14 04:07:28,178 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_fct_cmd [2022-07-14 04:07:28,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-14 04:07:28,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-14 04:07:28,178 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-14 04:07:28,178 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-14 04:07:28,178 INFO L130 BoogieDeclarations]: Found specification of procedure canif_is_active [2022-07-14 04:07:28,178 INFO L138 BoogieDeclarations]: Found implementation of procedure canif_is_active [2022-07-14 04:07:28,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-14 04:07:28,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-14 04:07:28,179 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2022-07-14 04:07:28,179 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2022-07-14 04:07:28,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 04:07:28,180 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-14 04:07:28,180 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-14 04:07:28,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-14 04:07:28,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-14 04:07:28,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-14 04:07:28,181 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_open [2022-07-14 04:07:28,181 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_open [2022-07-14 04:07:28,182 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-14 04:07:28,182 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-14 04:07:28,182 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~C_INT [2022-07-14 04:07:28,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~C_INT [2022-07-14 04:07:28,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-14 04:07:28,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-14 04:07:28,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 04:07:28,182 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 04:07:28,183 INFO L130 BoogieDeclarations]: Found specification of procedure open_candev [2022-07-14 04:07:28,183 INFO L138 BoogieDeclarations]: Found implementation of procedure open_candev [2022-07-14 04:07:28,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-14 04:07:28,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-14 04:07:28,184 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_rx [2022-07-14 04:07:28,184 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_rx [2022-07-14 04:07:28,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-14 04:07:28,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-14 04:07:28,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 04:07:28,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-14 04:07:28,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-14 04:07:28,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-14 04:07:28,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-14 04:07:28,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-07-14 04:07:28,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-07-14 04:07:28,185 INFO L130 BoogieDeclarations]: Found specification of procedure softing_card_shutdown [2022-07-14 04:07:28,185 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_card_shutdown [2022-07-14 04:07:28,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 04:07:28,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-14 04:07:28,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-14 04:07:28,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 04:07:28,186 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-14 04:07:28,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-14 04:07:28,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-14 04:07:28,187 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-07-14 04:07:28,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-07-14 04:07:28,187 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 04:07:28,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 04:07:28,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-14 04:07:28,187 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_set [2022-07-14 04:07:28,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_set [2022-07-14 04:07:28,188 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_cleanup [2022-07-14 04:07:28,188 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_cleanup [2022-07-14 04:07:28,188 INFO L130 BoogieDeclarations]: Found specification of procedure softing_startstop [2022-07-14 04:07:28,188 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_startstop [2022-07-14 04:07:28,188 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-07-14 04:07:28,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-07-14 04:07:28,188 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_add_us [2022-07-14 04:07:28,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_add_us [2022-07-14 04:07:28,189 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2022-07-14 04:07:28,189 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2022-07-14 04:07:28,189 INFO L130 BoogieDeclarations]: Found specification of procedure softing_bootloader_command [2022-07-14 04:07:28,189 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_bootloader_command [2022-07-14 04:07:28,189 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2022-07-14 04:07:28,189 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2022-07-14 04:07:28,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_62 [2022-07-14 04:07:28,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_62 [2022-07-14 04:07:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure softing_raw2ktime [2022-07-14 04:07:28,192 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_raw2ktime [2022-07-14 04:07:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-14 04:07:28,192 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2022-07-14 04:07:28,192 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2022-07-14 04:07:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 04:07:28,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 04:07:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-14 04:07:28,193 INFO L130 BoogieDeclarations]: Found specification of procedure store_output [2022-07-14 04:07:28,199 INFO L138 BoogieDeclarations]: Found implementation of procedure store_output [2022-07-14 04:07:28,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-14 04:07:28,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-14 04:07:28,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 04:07:28,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-14 04:07:28,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 04:07:28,199 INFO L130 BoogieDeclarations]: Found specification of procedure softing_pdev_probe [2022-07-14 04:07:28,199 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_pdev_probe [2022-07-14 04:07:28,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 04:07:28,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 04:07:28,200 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_stop [2022-07-14 04:07:28,200 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_stop [2022-07-14 04:07:28,200 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2022-07-14 04:07:28,200 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2022-07-14 04:07:28,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-14 04:07:28,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-14 04:07:28,200 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-14 04:07:28,200 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-14 04:07:28,200 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-07-14 04:07:28,200 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-07-14 04:07:28,201 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-14 04:07:28,201 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-14 04:07:28,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 04:07:28,201 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 04:07:28,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_softing_driver_exit_21_2 [2022-07-14 04:07:28,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_softing_driver_exit_21_2 [2022-07-14 04:07:28,201 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-14 04:07:28,201 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-14 04:07:28,201 INFO L130 BoogieDeclarations]: Found specification of procedure softing_set_reset_dpram [2022-07-14 04:07:28,201 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_set_reset_dpram [2022-07-14 04:07:28,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 04:07:28,202 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-14 04:07:28,202 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-14 04:07:28,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 04:07:28,202 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-07-14 04:07:28,202 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-07-14 04:07:28,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-14 04:07:28,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-14 04:07:28,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-14 04:07:28,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-14 04:07:28,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 04:07:28,203 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-14 04:07:28,203 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-14 04:07:28,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-14 04:07:28,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-14 04:07:28,203 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-07-14 04:07:28,203 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-07-14 04:07:28,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-07-14 04:07:28,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-07-14 04:07:28,204 INFO L130 BoogieDeclarations]: Found specification of procedure fw_parse [2022-07-14 04:07:28,204 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_parse [2022-07-14 04:07:28,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-14 04:07:28,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-14 04:07:28,204 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-07-14 04:07:28,204 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-07-14 04:07:28,204 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-14 04:07:28,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-14 04:07:28,205 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 04:07:28,205 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 04:07:28,205 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~C_ULONG~TO~C_LONG [2022-07-14 04:07:28,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~C_ULONG~TO~C_LONG [2022-07-14 04:07:28,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-14 04:07:28,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-14 04:07:28,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-14 04:07:28,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-14 04:07:28,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 04:07:28,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 04:07:28,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_61 [2022-07-14 04:07:28,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_61 [2022-07-14 04:07:28,206 INFO L130 BoogieDeclarations]: Found specification of procedure _softing_fct_cmd [2022-07-14 04:07:28,206 INFO L138 BoogieDeclarations]: Found implementation of procedure _softing_fct_cmd [2022-07-14 04:07:28,206 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2022-07-14 04:07:28,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2022-07-14 04:07:28,206 INFO L130 BoogieDeclarations]: Found specification of procedure softing_error_reporting [2022-07-14 04:07:28,206 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_error_reporting [2022-07-14 04:07:28,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-14 04:07:28,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-14 04:07:28,207 INFO L130 BoogieDeclarations]: Found specification of procedure softing_pdev_remove [2022-07-14 04:07:28,207 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_pdev_remove [2022-07-14 04:07:28,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_spin_of_softing [2022-07-14 04:07:28,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_spin_of_softing [2022-07-14 04:07:28,207 INFO L130 BoogieDeclarations]: Found specification of procedure softing_enable_irq [2022-07-14 04:07:28,207 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_enable_irq [2022-07-14 04:07:28,207 INFO L130 BoogieDeclarations]: Found specification of procedure softing_load_fw [2022-07-14 04:07:28,208 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_load_fw [2022-07-14 04:07:28,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-14 04:07:28,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-14 04:07:28,935 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 04:07:28,937 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 04:07:38,410 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 04:08:09,392 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-14 04:08:09,429 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 04:08:09,441 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 04:08:09,441 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 04:08:09,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:08:09 BoogieIcfgContainer [2022-07-14 04:08:09,444 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 04:08:09,445 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 04:08:09,445 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 04:08:09,447 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 04:08:09,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 04:07:24" (1/3) ... [2022-07-14 04:08:09,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ba2ce62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 04:08:09, skipping insertion in model container [2022-07-14 04:08:09,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:07:27" (2/3) ... [2022-07-14 04:08:09,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ba2ce62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 04:08:09, skipping insertion in model container [2022-07-14 04:08:09,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:08:09" (3/3) ... [2022-07-14 04:08:09,449 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2022-07-14 04:08:09,458 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 04:08:09,459 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-14 04:08:09,536 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 04:08:09,545 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@791b1f6f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1c0d3a1b [2022-07-14 04:08:09,545 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-14 04:08:09,552 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) [2022-07-14 04:08:09,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2022-07-14 04:08:09,579 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:08:09,580 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] [2022-07-14 04:08:09,580 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)] === [2022-07-14 04:08:09,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:08:09,585 INFO L85 PathProgramCache]: Analyzing trace with hash 820136742, now seen corresponding path program 1 times [2022-07-14 04:08:09,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:08:09,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1442966602] [2022-07-14 04:08:09,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:08:09,602 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:08:09,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:08:09,604 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) [2022-07-14 04:08:09,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-14 04:08:11,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:08:11,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 1946 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 04:08:11,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:08:11,318 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 6669 trivial. 0 not checked. [2022-07-14 04:08:11,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:08:11,319 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:08:11,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1442966602] [2022-07-14 04:08:11,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1442966602] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:08:11,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:08:11,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 04:08:11,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976438655] [2022-07-14 04:08:11,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:08:11,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 04:08:11,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:08:11,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 04:08:11,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:08:11,345 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) [2022-07-14 04:08:11,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:08:11,825 INFO L93 Difference]: Finished difference Result 6170 states and 9026 transitions. [2022-07-14 04:08:11,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 04:08:11,827 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 [2022-07-14 04:08:11,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:08:11,857 INFO L225 Difference]: With dead ends: 6170 [2022-07-14 04:08:11,857 INFO L226 Difference]: Without dead ends: 4066 [2022-07-14 04:08:11,871 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 [2022-07-14 04:08:11,873 INFO L413 NwaCegarLoop]: 3614 mSDtfsCounter, 2729 mSDsluCounter, 3120 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2729 SdHoareTripleChecker+Valid, 6734 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 04:08:11,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2729 Valid, 6734 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 04:08:11,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4066 states. [2022-07-14 04:08:12,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4066 to 4040. [2022-07-14 04:08:12,118 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) [2022-07-14 04:08:12,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4040 states to 4040 states and 5798 transitions. [2022-07-14 04:08:12,146 INFO L78 Accepts]: Start accepts. Automaton has 4040 states and 5798 transitions. Word has length 457 [2022-07-14 04:08:12,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:08:12,148 INFO L495 AbstractCegarLoop]: Abstraction has 4040 states and 5798 transitions. [2022-07-14 04:08:12,149 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) [2022-07-14 04:08:12,149 INFO L276 IsEmpty]: Start isEmpty. Operand 4040 states and 5798 transitions. [2022-07-14 04:08:12,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2022-07-14 04:08:12,162 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:08:12,163 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] [2022-07-14 04:08:12,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-14 04:08:12,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:08:12,380 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)] === [2022-07-14 04:08:12,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:08:12,380 INFO L85 PathProgramCache]: Analyzing trace with hash -113970776, now seen corresponding path program 1 times [2022-07-14 04:08:12,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:08:12,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [11883284] [2022-07-14 04:08:12,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:08:12,382 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:08:12,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:08:12,384 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) [2022-07-14 04:08:12,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-14 04:08:13,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:08:13,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 1924 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 04:08:13,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:08:13,891 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 6669 trivial. 0 not checked. [2022-07-14 04:08:13,892 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:08:13,892 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:08:13,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [11883284] [2022-07-14 04:08:13,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [11883284] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:08:13,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:08:13,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 04:08:13,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652052332] [2022-07-14 04:08:13,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:08:13,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 04:08:13,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:08:13,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 04:08:13,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:08:13,895 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) [2022-07-14 04:08:14,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:08:14,438 INFO L93 Difference]: Finished difference Result 11787 states and 16935 transitions. [2022-07-14 04:08:14,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 04:08:14,439 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 [2022-07-14 04:08:14,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:08:14,488 INFO L225 Difference]: With dead ends: 11787 [2022-07-14 04:08:14,488 INFO L226 Difference]: Without dead ends: 7830 [2022-07-14 04:08:14,510 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 [2022-07-14 04:08:14,511 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, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 04:08:14,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2836 Valid, 6572 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 04:08:14,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7830 states. [2022-07-14 04:08:14,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7830 to 7826. [2022-07-14 04:08:14,732 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) [2022-07-14 04:08:14,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7826 states to 7826 states and 11243 transitions. [2022-07-14 04:08:14,777 INFO L78 Accepts]: Start accepts. Automaton has 7826 states and 11243 transitions. Word has length 457 [2022-07-14 04:08:14,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:08:14,779 INFO L495 AbstractCegarLoop]: Abstraction has 7826 states and 11243 transitions. [2022-07-14 04:08:14,779 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) [2022-07-14 04:08:14,779 INFO L276 IsEmpty]: Start isEmpty. Operand 7826 states and 11243 transitions. [2022-07-14 04:08:14,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2022-07-14 04:08:14,787 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:08:14,787 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] [2022-07-14 04:08:14,840 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-14 04:08:15,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:08:15,005 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)] === [2022-07-14 04:08:15,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:08:15,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1620499840, now seen corresponding path program 1 times [2022-07-14 04:08:15,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:08:15,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [944607428] [2022-07-14 04:08:15,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:08:15,008 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:08:15,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:08:15,014 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) [2022-07-14 04:08:15,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-14 04:08:16,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:08:16,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 2021 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 04:08:16,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:08:16,701 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 6669 trivial. 0 not checked. [2022-07-14 04:08:16,701 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:08:16,701 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:08:16,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [944607428] [2022-07-14 04:08:16,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [944607428] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:08:16,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:08:16,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 04:08:16,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007285159] [2022-07-14 04:08:16,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:08:16,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 04:08:16,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:08:16,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 04:08:16,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:08:16,706 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) [2022-07-14 04:08:17,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:08:17,326 INFO L93 Difference]: Finished difference Result 22844 states and 33121 transitions. [2022-07-14 04:08:17,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 04:08:17,326 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 [2022-07-14 04:08:17,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:08:17,426 INFO L225 Difference]: With dead ends: 22844 [2022-07-14 04:08:17,426 INFO L226 Difference]: Without dead ends: 15101 [2022-07-14 04:08:17,469 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 [2022-07-14 04:08:17,473 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 [2022-07-14 04:08:17,474 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] [2022-07-14 04:08:17,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15101 states. [2022-07-14 04:08:17,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15101 to 15068. [2022-07-14 04:08:17,987 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) [2022-07-14 04:08:18,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15068 states to 15068 states and 21939 transitions. [2022-07-14 04:08:18,154 INFO L78 Accepts]: Start accepts. Automaton has 15068 states and 21939 transitions. Word has length 466 [2022-07-14 04:08:18,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:08:18,155 INFO L495 AbstractCegarLoop]: Abstraction has 15068 states and 21939 transitions. [2022-07-14 04:08:18,156 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) [2022-07-14 04:08:18,156 INFO L276 IsEmpty]: Start isEmpty. Operand 15068 states and 21939 transitions. [2022-07-14 04:08:18,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2022-07-14 04:08:18,162 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:08:18,163 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] [2022-07-14 04:08:18,192 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-07-14 04:08:18,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:08:18,389 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)] === [2022-07-14 04:08:18,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:08:18,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1698188113, now seen corresponding path program 1 times [2022-07-14 04:08:18,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:08:18,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [777640273] [2022-07-14 04:08:18,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:08:18,391 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:08:18,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:08:18,393 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) [2022-07-14 04:08:18,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-14 04:08:19,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:08:19,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 2141 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 04:08:19,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:08:20,152 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 6669 trivial. 0 not checked. [2022-07-14 04:08:20,152 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:08:20,153 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:08:20,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [777640273] [2022-07-14 04:08:20,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [777640273] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:08:20,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:08:20,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 04:08:20,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403310145] [2022-07-14 04:08:20,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:08:20,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 04:08:20,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:08:20,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 04:08:20,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:08:20,155 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) [2022-07-14 04:08:21,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:08:21,682 INFO L93 Difference]: Finished difference Result 43418 states and 63015 transitions. [2022-07-14 04:08:21,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 04:08:21,682 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 [2022-07-14 04:08:21,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:08:21,809 INFO L225 Difference]: With dead ends: 43418 [2022-07-14 04:08:21,810 INFO L226 Difference]: Without dead ends: 28433 [2022-07-14 04:08:21,864 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 [2022-07-14 04:08:21,866 INFO L413 NwaCegarLoop]: 4082 mSDtfsCounter, 2642 mSDsluCounter, 2975 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.9s IncrementalHoareTripleChecker+Time [2022-07-14 04:08:21,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2642 Valid, 7057 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-14 04:08:21,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28433 states. [2022-07-14 04:08:23,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28433 to 28392. [2022-07-14 04:08:23,052 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) [2022-07-14 04:08:23,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28392 states to 28392 states and 40917 transitions. [2022-07-14 04:08:23,235 INFO L78 Accepts]: Start accepts. Automaton has 28392 states and 40917 transitions. Word has length 486 [2022-07-14 04:08:23,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:08:23,237 INFO L495 AbstractCegarLoop]: Abstraction has 28392 states and 40917 transitions. [2022-07-14 04:08:23,237 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) [2022-07-14 04:08:23,237 INFO L276 IsEmpty]: Start isEmpty. Operand 28392 states and 40917 transitions. [2022-07-14 04:08:23,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-07-14 04:08:23,242 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:08:23,242 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] [2022-07-14 04:08:23,276 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-14 04:08:23,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:08:23,456 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)] === [2022-07-14 04:08:23,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:08:23,457 INFO L85 PathProgramCache]: Analyzing trace with hash -78835710, now seen corresponding path program 1 times [2022-07-14 04:08:23,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:08:23,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2132587831] [2022-07-14 04:08:23,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:08:23,459 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:08:23,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:08:23,460 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) [2022-07-14 04:08:23,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-14 04:08:24,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:08:24,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 2100 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 04:08:24,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:08:25,091 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 6669 trivial. 0 not checked. [2022-07-14 04:08:25,092 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:08:25,092 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:08:25,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2132587831] [2022-07-14 04:08:25,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2132587831] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:08:25,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:08:25,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 04:08:25,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966923002] [2022-07-14 04:08:25,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:08:25,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 04:08:25,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:08:25,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 04:08:25,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:08:25,094 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) [2022-07-14 04:08:26,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:08:26,330 INFO L93 Difference]: Finished difference Result 54939 states and 79146 transitions. [2022-07-14 04:08:26,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 04:08:26,331 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 [2022-07-14 04:08:26,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:08:26,461 INFO L225 Difference]: With dead ends: 54939 [2022-07-14 04:08:26,462 INFO L226 Difference]: Without dead ends: 26630 [2022-07-14 04:08:26,617 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 [2022-07-14 04:08:26,618 INFO L413 NwaCegarLoop]: 4915 mSDtfsCounter, 2843 mSDsluCounter, 3016 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 04:08:26,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2843 Valid, 7931 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 04:08:26,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26630 states. [2022-07-14 04:08:27,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26630 to 26591. [2022-07-14 04:08:27,499 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) [2022-07-14 04:08:27,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26591 states to 26591 states and 38196 transitions. [2022-07-14 04:08:27,613 INFO L78 Accepts]: Start accepts. Automaton has 26591 states and 38196 transitions. Word has length 484 [2022-07-14 04:08:27,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:08:27,614 INFO L495 AbstractCegarLoop]: Abstraction has 26591 states and 38196 transitions. [2022-07-14 04:08:27,614 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) [2022-07-14 04:08:27,614 INFO L276 IsEmpty]: Start isEmpty. Operand 26591 states and 38196 transitions. [2022-07-14 04:08:27,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2022-07-14 04:08:27,620 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:08:27,620 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] [2022-07-14 04:08:27,651 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-14 04:08:27,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:08:27,836 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)] === [2022-07-14 04:08:27,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:08:27,837 INFO L85 PathProgramCache]: Analyzing trace with hash -741269785, now seen corresponding path program 1 times [2022-07-14 04:08:27,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:08:27,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [303353733] [2022-07-14 04:08:27,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:08:27,839 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:08:27,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:08:27,841 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) [2022-07-14 04:08:27,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-14 04:08:29,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:08:29,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 2037 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 04:08:29,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:08:29,539 INFO L134 CoverageAnalysis]: Checked inductivity of 7189 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 7041 trivial. 0 not checked. [2022-07-14 04:08:29,540 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:08:29,540 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:08:29,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [303353733] [2022-07-14 04:08:29,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [303353733] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:08:29,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:08:29,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 04:08:29,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349993522] [2022-07-14 04:08:29,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:08:29,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 04:08:29,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:08:29,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 04:08:29,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:08:29,542 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) [2022-07-14 04:08:30,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:08:30,733 INFO L93 Difference]: Finished difference Result 77226 states and 111141 transitions. [2022-07-14 04:08:30,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 04:08:30,733 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 [2022-07-14 04:08:30,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:08:30,941 INFO L225 Difference]: With dead ends: 77226 [2022-07-14 04:08:30,942 INFO L226 Difference]: Without dead ends: 51254 [2022-07-14 04:08:31,027 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 [2022-07-14 04:08:31,028 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 [2022-07-14 04:08:31,028 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] [2022-07-14 04:08:31,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51254 states. [2022-07-14 04:08:32,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51254 to 51250. [2022-07-14 04:08:32,655 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) [2022-07-14 04:08:32,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51250 states to 51250 states and 73771 transitions. [2022-07-14 04:08:32,878 INFO L78 Accepts]: Start accepts. Automaton has 51250 states and 73771 transitions. Word has length 513 [2022-07-14 04:08:32,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:08:32,879 INFO L495 AbstractCegarLoop]: Abstraction has 51250 states and 73771 transitions. [2022-07-14 04:08:32,879 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) [2022-07-14 04:08:32,879 INFO L276 IsEmpty]: Start isEmpty. Operand 51250 states and 73771 transitions. [2022-07-14 04:08:32,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2022-07-14 04:08:32,885 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:08:32,885 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] [2022-07-14 04:08:32,918 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-14 04:08:33,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:08:33,100 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)] === [2022-07-14 04:08:33,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:08:33,100 INFO L85 PathProgramCache]: Analyzing trace with hash -600721175, now seen corresponding path program 1 times [2022-07-14 04:08:33,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:08:33,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1046876560] [2022-07-14 04:08:33,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:08:33,102 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:08:33,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:08:33,104 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) [2022-07-14 04:08:33,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-14 04:08:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:08:34,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 2037 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 04:08:34,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:08:41,690 INFO L134 CoverageAnalysis]: Checked inductivity of 7189 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7189 trivial. 0 not checked. [2022-07-14 04:08:41,690 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:08:41,690 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:08:41,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1046876560] [2022-07-14 04:08:41,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1046876560] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:08:41,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:08:41,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 04:08:41,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991217168] [2022-07-14 04:08:41,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:08:41,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 04:08:41,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:08:41,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 04:08:41,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 04:08:41,692 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) [2022-07-14 04:08:42,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:08:42,639 INFO L93 Difference]: Finished difference Result 51256 states and 73776 transitions. [2022-07-14 04:08:42,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 04:08:42,639 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 [2022-07-14 04:08:42,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:08:42,817 INFO L225 Difference]: With dead ends: 51256 [2022-07-14 04:08:42,818 INFO L226 Difference]: Without dead ends: 51254 [2022-07-14 04:08:42,844 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 [2022-07-14 04:08:42,845 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 [2022-07-14 04:08:42,846 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] [2022-07-14 04:08:42,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51254 states. [2022-07-14 04:08:44,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51254 to 51254. [2022-07-14 04:08:44,305 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) [2022-07-14 04:08:44,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51254 states to 51254 states and 73774 transitions. [2022-07-14 04:08:44,483 INFO L78 Accepts]: Start accepts. Automaton has 51254 states and 73774 transitions. Word has length 513 [2022-07-14 04:08:44,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:08:44,485 INFO L495 AbstractCegarLoop]: Abstraction has 51254 states and 73774 transitions. [2022-07-14 04:08:44,485 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) [2022-07-14 04:08:44,486 INFO L276 IsEmpty]: Start isEmpty. Operand 51254 states and 73774 transitions. [2022-07-14 04:08:44,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2022-07-14 04:08:44,491 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:08:44,492 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] [2022-07-14 04:08:44,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-14 04:08:44,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:08:44,720 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)] === [2022-07-14 04:08:44,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:08:44,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1571622814, now seen corresponding path program 1 times [2022-07-14 04:08:44,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:08:44,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [197571443] [2022-07-14 04:08:44,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:08:44,723 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:08:44,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:08:44,736 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) [2022-07-14 04:08:44,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-14 04:08:46,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:08:46,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 2044 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 04:08:46,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:08:52,909 INFO L134 CoverageAnalysis]: Checked inductivity of 7191 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7189 trivial. 0 not checked. [2022-07-14 04:08:52,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:08:54,919 INFO L134 CoverageAnalysis]: Checked inductivity of 7191 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7189 trivial. 0 not checked. [2022-07-14 04:08:54,919 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:08:54,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [197571443] [2022-07-14 04:08:54,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [197571443] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 04:08:54,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 04:08:54,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 04:08:54,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959821816] [2022-07-14 04:08:54,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:08:54,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 04:08:54,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:08:54,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 04:08:54,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 04:08:54,922 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) [2022-07-14 04:08:56,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:08:56,083 INFO L93 Difference]: Finished difference Result 51260 states and 73779 transitions. [2022-07-14 04:08:56,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 04:08:56,083 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 [2022-07-14 04:08:56,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:08:56,251 INFO L225 Difference]: With dead ends: 51260 [2022-07-14 04:08:56,251 INFO L226 Difference]: Without dead ends: 51258 [2022-07-14 04:08:56,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1037 GetRequests, 1029 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 04:08:56,277 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 [2022-07-14 04:08:56,277 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] [2022-07-14 04:08:56,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51258 states. [2022-07-14 04:08:57,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51258 to 51258. [2022-07-14 04:08:57,602 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) [2022-07-14 04:08:57,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51258 states to 51258 states and 73777 transitions. [2022-07-14 04:08:57,764 INFO L78 Accepts]: Start accepts. Automaton has 51258 states and 73777 transitions. Word has length 518 [2022-07-14 04:08:57,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:08:57,765 INFO L495 AbstractCegarLoop]: Abstraction has 51258 states and 73777 transitions. [2022-07-14 04:08:57,765 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) [2022-07-14 04:08:57,765 INFO L276 IsEmpty]: Start isEmpty. Operand 51258 states and 73777 transitions. [2022-07-14 04:08:57,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 524 [2022-07-14 04:08:57,775 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:08:57,775 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] [2022-07-14 04:08:57,802 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-14 04:08:57,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:08:57,976 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 04:08:57,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:08:57,977 INFO L85 PathProgramCache]: Analyzing trace with hash 838046793, now seen corresponding path program 1 times [2022-07-14 04:08:57,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:08:57,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1308919604] [2022-07-14 04:08:57,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:08:57,978 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:08:57,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:08:57,979 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) [2022-07-14 04:08:57,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-14 04:08:59,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:08:59,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 2051 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 04:08:59,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:09:06,099 INFO L134 CoverageAnalysis]: Checked inductivity of 7197 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7193 trivial. 0 not checked. [2022-07-14 04:09:06,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:09:08,133 INFO L134 CoverageAnalysis]: Checked inductivity of 7197 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7193 trivial. 0 not checked. [2022-07-14 04:09:08,133 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:09:08,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1308919604] [2022-07-14 04:09:08,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1308919604] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 04:09:08,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 04:09:08,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 04:09:08,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673338416] [2022-07-14 04:09:08,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:09:08,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 04:09:08,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:09:08,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 04:09:08,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 04:09:08,135 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) [2022-07-14 04:09:09,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:09:09,474 INFO L93 Difference]: Finished difference Result 51264 states and 73782 transitions. [2022-07-14 04:09:09,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 04:09:09,475 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 [2022-07-14 04:09:09,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:09:09,662 INFO L225 Difference]: With dead ends: 51264 [2022-07-14 04:09:09,662 INFO L226 Difference]: Without dead ends: 51262 [2022-07-14 04:09:09,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1047 GetRequests, 1039 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 04:09:09,691 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, 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 [2022-07-14 04:09:09,692 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] [2022-07-14 04:09:09,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51262 states. [2022-07-14 04:09:11,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51262 to 51262. [2022-07-14 04:09:11,167 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) [2022-07-14 04:09:11,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51262 states to 51262 states and 73780 transitions. [2022-07-14 04:09:11,345 INFO L78 Accepts]: Start accepts. Automaton has 51262 states and 73780 transitions. Word has length 523 [2022-07-14 04:09:11,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:09:11,346 INFO L495 AbstractCegarLoop]: Abstraction has 51262 states and 73780 transitions. [2022-07-14 04:09:11,346 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) [2022-07-14 04:09:11,346 INFO L276 IsEmpty]: Start isEmpty. Operand 51262 states and 73780 transitions. [2022-07-14 04:09:11,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 541 [2022-07-14 04:09:11,355 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:09:11,355 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] [2022-07-14 04:09:11,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-14 04:09:11,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:09:11,576 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)] === [2022-07-14 04:09:11,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:09:11,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1832518006, now seen corresponding path program 1 times [2022-07-14 04:09:11,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:09:11,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1011888517] [2022-07-14 04:09:11,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:09:11,578 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:09:11,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:09:11,579 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) [2022-07-14 04:09:11,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-14 04:09:12,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:09:12,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 2106 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 04:09:12,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:09:13,064 INFO L134 CoverageAnalysis]: Checked inductivity of 7219 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 7063 trivial. 0 not checked. [2022-07-14 04:09:13,065 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:09:13,065 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:09:13,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1011888517] [2022-07-14 04:09:13,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1011888517] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:09:13,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:09:13,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 04:09:13,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027432317] [2022-07-14 04:09:13,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:09:13,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 04:09:13,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:09:13,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 04:09:13,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:09:13,067 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) [2022-07-14 04:09:15,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:09:15,199 INFO L93 Difference]: Finished difference Result 126614 states and 182378 transitions. [2022-07-14 04:09:15,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 04:09:15,201 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 [2022-07-14 04:09:15,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:09:15,679 INFO L225 Difference]: With dead ends: 126614 [2022-07-14 04:09:15,679 INFO L226 Difference]: Without dead ends: 75971 [2022-07-14 04:09:15,840 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 [2022-07-14 04:09:15,840 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 [2022-07-14 04:09:15,841 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] [2022-07-14 04:09:15,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75971 states. [2022-07-14 04:09:18,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75971 to 75937. [2022-07-14 04:09:18,275 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) [2022-07-14 04:09:18,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75937 states to 75937 states and 109371 transitions. [2022-07-14 04:09:18,567 INFO L78 Accepts]: Start accepts. Automaton has 75937 states and 109371 transitions. Word has length 540 [2022-07-14 04:09:18,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:09:18,567 INFO L495 AbstractCegarLoop]: Abstraction has 75937 states and 109371 transitions. [2022-07-14 04:09:18,568 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) [2022-07-14 04:09:18,568 INFO L276 IsEmpty]: Start isEmpty. Operand 75937 states and 109371 transitions. [2022-07-14 04:09:18,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2022-07-14 04:09:18,577 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:09:18,577 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] [2022-07-14 04:09:18,609 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2022-07-14 04:09:18,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:09:18,804 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)] === [2022-07-14 04:09:18,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:09:18,805 INFO L85 PathProgramCache]: Analyzing trace with hash 378364034, now seen corresponding path program 1 times [2022-07-14 04:09:18,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:09:18,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [848036865] [2022-07-14 04:09:18,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:09:18,806 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:09:18,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:09:18,808 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) [2022-07-14 04:09:18,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-14 04:09:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:09:20,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 2058 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 04:09:20,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:09:26,669 INFO L134 CoverageAnalysis]: Checked inductivity of 7207 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7201 trivial. 0 not checked. [2022-07-14 04:09:26,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:09:28,746 INFO L134 CoverageAnalysis]: Checked inductivity of 7207 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7201 trivial. 0 not checked. [2022-07-14 04:09:28,746 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:09:28,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [848036865] [2022-07-14 04:09:28,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [848036865] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 04:09:28,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 04:09:28,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 04:09:28,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501932262] [2022-07-14 04:09:28,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:09:28,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 04:09:28,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:09:28,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 04:09:28,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 04:09:28,748 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) [2022-07-14 04:09:30,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:09:30,458 INFO L93 Difference]: Finished difference Result 75943 states and 109376 transitions. [2022-07-14 04:09:30,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 04:09:30,459 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 [2022-07-14 04:09:30,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:09:30,719 INFO L225 Difference]: With dead ends: 75943 [2022-07-14 04:09:30,719 INFO L226 Difference]: Without dead ends: 75941 [2022-07-14 04:09:30,759 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 [2022-07-14 04:09:30,759 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 [2022-07-14 04:09:30,760 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] [2022-07-14 04:09:30,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75941 states. [2022-07-14 04:09:33,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75941 to 75941. [2022-07-14 04:09:33,101 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) [2022-07-14 04:09:33,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75941 states to 75941 states and 109374 transitions. [2022-07-14 04:09:33,355 INFO L78 Accepts]: Start accepts. Automaton has 75941 states and 109374 transitions. Word has length 528 [2022-07-14 04:09:33,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:09:33,356 INFO L495 AbstractCegarLoop]: Abstraction has 75941 states and 109374 transitions. [2022-07-14 04:09:33,356 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) [2022-07-14 04:09:33,356 INFO L276 IsEmpty]: Start isEmpty. Operand 75941 states and 109374 transitions. [2022-07-14 04:09:33,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2022-07-14 04:09:33,365 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:09:33,365 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] [2022-07-14 04:09:33,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-14 04:09:33,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:09:33,571 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)] === [2022-07-14 04:09:33,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:09:33,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1483446359, now seen corresponding path program 1 times [2022-07-14 04:09:33,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:09:33,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1617315880] [2022-07-14 04:09:33,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:09:33,573 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:09:33,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:09:33,574 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) [2022-07-14 04:09:33,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-14 04:09:34,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:09:34,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 2065 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 04:09:34,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:09:41,317 INFO L134 CoverageAnalysis]: Checked inductivity of 7221 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7213 trivial. 0 not checked. [2022-07-14 04:09:41,318 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:09:43,397 INFO L134 CoverageAnalysis]: Checked inductivity of 7221 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7213 trivial. 0 not checked. [2022-07-14 04:09:43,398 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:09:43,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1617315880] [2022-07-14 04:09:43,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1617315880] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 04:09:43,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 04:09:43,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 04:09:43,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462292752] [2022-07-14 04:09:43,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:09:43,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 04:09:43,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:09:43,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 04:09:43,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 04:09:43,399 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) [2022-07-14 04:09:45,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:09:45,294 INFO L93 Difference]: Finished difference Result 75947 states and 109379 transitions. [2022-07-14 04:09:45,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 04:09:45,295 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 [2022-07-14 04:09:45,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:09:45,542 INFO L225 Difference]: With dead ends: 75947 [2022-07-14 04:09:45,542 INFO L226 Difference]: Without dead ends: 75945 [2022-07-14 04:09:45,574 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 [2022-07-14 04:09:45,574 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 [2022-07-14 04:09:45,574 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] [2022-07-14 04:09:45,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75945 states. [2022-07-14 04:09:47,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75945 to 75945. [2022-07-14 04:09:47,833 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) [2022-07-14 04:09:48,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75945 states to 75945 states and 109377 transitions. [2022-07-14 04:09:48,314 INFO L78 Accepts]: Start accepts. Automaton has 75945 states and 109377 transitions. Word has length 533 [2022-07-14 04:09:48,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:09:48,314 INFO L495 AbstractCegarLoop]: Abstraction has 75945 states and 109377 transitions. [2022-07-14 04:09:48,314 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) [2022-07-14 04:09:48,315 INFO L276 IsEmpty]: Start isEmpty. Operand 75945 states and 109377 transitions. [2022-07-14 04:09:48,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 539 [2022-07-14 04:09:48,324 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:09:48,324 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] [2022-07-14 04:09:48,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-14 04:09:48,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:09:48,532 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)] === [2022-07-14 04:09:48,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:09:48,533 INFO L85 PathProgramCache]: Analyzing trace with hash -679225182, now seen corresponding path program 1 times [2022-07-14 04:09:48,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:09:48,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1134767197] [2022-07-14 04:09:48,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:09:48,534 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:09:48,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:09:48,535 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) [2022-07-14 04:09:48,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-14 04:09:49,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:09:49,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 2072 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 04:09:49,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:09:56,344 INFO L134 CoverageAnalysis]: Checked inductivity of 7239 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 7229 trivial. 0 not checked. [2022-07-14 04:09:56,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:09:58,228 INFO L134 CoverageAnalysis]: Checked inductivity of 7239 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 7229 trivial. 0 not checked. [2022-07-14 04:09:58,228 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:09:58,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1134767197] [2022-07-14 04:09:58,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1134767197] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 04:09:58,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 04:09:58,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 04:09:58,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344353188] [2022-07-14 04:09:58,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:09:58,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 04:09:58,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:09:58,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 04:09:58,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 04:09:58,230 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) [2022-07-14 04:10:00,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:10:00,102 INFO L93 Difference]: Finished difference Result 75951 states and 109382 transitions. [2022-07-14 04:10:00,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 04:10:00,103 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 [2022-07-14 04:10:00,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:10:00,415 INFO L225 Difference]: With dead ends: 75951 [2022-07-14 04:10:00,416 INFO L226 Difference]: Without dead ends: 75949 [2022-07-14 04:10:00,461 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 [2022-07-14 04:10:00,462 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 [2022-07-14 04:10:00,462 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] [2022-07-14 04:10:00,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75949 states. [2022-07-14 04:10:02,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75949 to 75949. [2022-07-14 04:10:02,953 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) [2022-07-14 04:10:03,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75949 states to 75949 states and 109380 transitions. [2022-07-14 04:10:03,203 INFO L78 Accepts]: Start accepts. Automaton has 75949 states and 109380 transitions. Word has length 538 [2022-07-14 04:10:03,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:10:03,204 INFO L495 AbstractCegarLoop]: Abstraction has 75949 states and 109380 transitions. [2022-07-14 04:10:03,204 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) [2022-07-14 04:10:03,204 INFO L276 IsEmpty]: Start isEmpty. Operand 75949 states and 109380 transitions. [2022-07-14 04:10:03,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2022-07-14 04:10:03,214 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:10:03,214 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] [2022-07-14 04:10:03,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-14 04:10:03,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:10:03,415 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)] === [2022-07-14 04:10:03,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:10:03,416 INFO L85 PathProgramCache]: Analyzing trace with hash 213791497, now seen corresponding path program 1 times [2022-07-14 04:10:03,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:10:03,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [93016906] [2022-07-14 04:10:03,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:10:03,417 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:10:03,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:10:03,418 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) [2022-07-14 04:10:03,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-14 04:10:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:10:04,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 2079 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 04:10:04,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:10:11,232 INFO L134 CoverageAnalysis]: Checked inductivity of 7261 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 7249 trivial. 0 not checked. [2022-07-14 04:10:11,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:10:13,040 INFO L134 CoverageAnalysis]: Checked inductivity of 7261 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 7249 trivial. 0 not checked. [2022-07-14 04:10:13,040 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:10:13,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [93016906] [2022-07-14 04:10:13,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [93016906] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 04:10:13,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 04:10:13,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 04:10:13,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970951501] [2022-07-14 04:10:13,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:10:13,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 04:10:13,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:10:13,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 04:10:13,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 04:10:13,042 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) [2022-07-14 04:10:15,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:10:15,289 INFO L93 Difference]: Finished difference Result 75955 states and 109385 transitions. [2022-07-14 04:10:15,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 04:10:15,290 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 [2022-07-14 04:10:15,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:10:15,540 INFO L225 Difference]: With dead ends: 75955 [2022-07-14 04:10:15,540 INFO L226 Difference]: Without dead ends: 75953 [2022-07-14 04:10:15,571 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 [2022-07-14 04:10:15,572 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 [2022-07-14 04:10:15,572 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] [2022-07-14 04:10:15,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75953 states. [2022-07-14 04:10:17,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75953 to 75953. [2022-07-14 04:10:17,932 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) [2022-07-14 04:10:18,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75953 states to 75953 states and 109383 transitions. [2022-07-14 04:10:18,386 INFO L78 Accepts]: Start accepts. Automaton has 75953 states and 109383 transitions. Word has length 543 [2022-07-14 04:10:18,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:10:18,386 INFO L495 AbstractCegarLoop]: Abstraction has 75953 states and 109383 transitions. [2022-07-14 04:10:18,386 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) [2022-07-14 04:10:18,386 INFO L276 IsEmpty]: Start isEmpty. Operand 75953 states and 109383 transitions. [2022-07-14 04:10:18,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2022-07-14 04:10:18,397 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:10:18,397 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] [2022-07-14 04:10:18,430 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-07-14 04:10:18,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:10:18,598 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)] === [2022-07-14 04:10:18,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:10:18,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1338792130, now seen corresponding path program 1 times [2022-07-14 04:10:18,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:10:18,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [493358568] [2022-07-14 04:10:18,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:10:18,600 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:10:18,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:10:18,601 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) [2022-07-14 04:10:18,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-14 04:10:19,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:10:19,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 2086 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 04:10:19,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:10:26,142 INFO L134 CoverageAnalysis]: Checked inductivity of 7287 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 7273 trivial. 0 not checked. [2022-07-14 04:10:26,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 04:10:28,020 INFO L134 CoverageAnalysis]: Checked inductivity of 7287 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 7273 trivial. 0 not checked. [2022-07-14 04:10:28,020 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:10:28,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [493358568] [2022-07-14 04:10:28,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [493358568] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 04:10:28,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 04:10:28,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-14 04:10:28,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858631070] [2022-07-14 04:10:28,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:10:28,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 04:10:28,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:10:28,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 04:10:28,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 04:10:28,023 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) [2022-07-14 04:10:30,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:10:30,051 INFO L93 Difference]: Finished difference Result 75959 states and 109388 transitions. [2022-07-14 04:10:30,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 04:10:30,052 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 [2022-07-14 04:10:30,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:10:30,316 INFO L225 Difference]: With dead ends: 75959 [2022-07-14 04:10:30,316 INFO L226 Difference]: Without dead ends: 75957 [2022-07-14 04:10:30,360 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 [2022-07-14 04:10:30,360 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 [2022-07-14 04:10:30,361 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] [2022-07-14 04:10:30,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75957 states. [2022-07-14 04:10:32,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75957 to 75957. [2022-07-14 04:10:32,967 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) [2022-07-14 04:10:33,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75957 states to 75957 states and 109386 transitions. [2022-07-14 04:10:33,213 INFO L78 Accepts]: Start accepts. Automaton has 75957 states and 109386 transitions. Word has length 548 [2022-07-14 04:10:33,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:10:33,213 INFO L495 AbstractCegarLoop]: Abstraction has 75957 states and 109386 transitions. [2022-07-14 04:10:33,214 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) [2022-07-14 04:10:33,214 INFO L276 IsEmpty]: Start isEmpty. Operand 75957 states and 109386 transitions. [2022-07-14 04:10:33,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2022-07-14 04:10:33,225 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:10:33,226 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] [2022-07-14 04:10:33,261 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2022-07-14 04:10:33,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:10:33,440 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)] === [2022-07-14 04:10:33,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:10:33,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1804543087, now seen corresponding path program 1 times [2022-07-14 04:10:33,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:10:33,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1936049630] [2022-07-14 04:10:33,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:10:33,442 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:10:33,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:10:33,443 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) [2022-07-14 04:10:33,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-14 04:10:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:10:34,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 2230 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 04:10:34,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:10:35,351 INFO L134 CoverageAnalysis]: Checked inductivity of 7198 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 6921 trivial. 0 not checked. [2022-07-14 04:10:35,351 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:10:35,352 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:10:35,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1936049630] [2022-07-14 04:10:35,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1936049630] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:10:35,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:10:35,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 04:10:35,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283932175] [2022-07-14 04:10:35,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:10:35,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 04:10:35,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:10:35,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 04:10:35,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:10:35,353 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) [2022-07-14 04:10:39,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:10:39,138 INFO L93 Difference]: Finished difference Result 184377 states and 265753 transitions. [2022-07-14 04:10:39,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 04:10:39,139 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 [2022-07-14 04:10:39,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:10:39,564 INFO L225 Difference]: With dead ends: 184377 [2022-07-14 04:10:39,564 INFO L226 Difference]: Without dead ends: 109039 [2022-07-14 04:10:39,937 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 [2022-07-14 04:10:39,938 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, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 04:10:39,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2814 Valid, 8850 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 04:10:40,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109039 states.