./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-ethernet-dec-tulip-dmfe.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-ethernet-dec-tulip-dmfe.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 4ee317e42bc2e06685ca0df819e5fc98feaca323581d52409851fe6eefd66a2a --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 04:09:27,102 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 04:09:27,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 04:09:27,144 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 04:09:27,145 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 04:09:27,146 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 04:09:27,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 04:09:27,152 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 04:09:27,153 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 04:09:27,158 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 04:09:27,159 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 04:09:27,160 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 04:09:27,161 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 04:09:27,161 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 04:09:27,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 04:09:27,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 04:09:27,167 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 04:09:27,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 04:09:27,173 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 04:09:27,174 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 04:09:27,175 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 04:09:27,179 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 04:09:27,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 04:09:27,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 04:09:27,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 04:09:27,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 04:09:27,187 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 04:09:27,187 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 04:09:27,188 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 04:09:27,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 04:09:27,190 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 04:09:27,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 04:09:27,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 04:09:27,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 04:09:27,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 04:09:27,193 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 04:09:27,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 04:09:27,194 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 04:09:27,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 04:09:27,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 04:09:27,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 04:09:27,197 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 04:09:27,199 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 04:09:27,224 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 04:09:27,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 04:09:27,225 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 04:09:27,225 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 04:09:27,226 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 04:09:27,226 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 04:09:27,226 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 04:09:27,227 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 04:09:27,227 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 04:09:27,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 04:09:27,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 04:09:27,228 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 04:09:27,228 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 04:09:27,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 04:09:27,229 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 04:09:27,229 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 04:09:27,229 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 04:09:27,229 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 04:09:27,229 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 04:09:27,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 04:09:27,230 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 04:09:27,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 04:09:27,230 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 04:09:27,230 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 04:09:27,230 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 04:09:27,231 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 04:09:27,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 04:09:27,231 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 04:09:27,231 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 04:09:27,231 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 04:09:27,232 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ee317e42bc2e06685ca0df819e5fc98feaca323581d52409851fe6eefd66a2a [2022-07-14 04:09:27,456 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 04:09:27,482 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 04:09:27,485 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 04:09:27,486 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 04:09:27,486 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 04:09:27,487 INFO L432 ainManager$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-ethernet-dec-tulip-dmfe.cil.i [2022-07-14 04:09:27,565 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f51314ae9/4c3e4ce53fa74501b2ba54ccc2de72b6/FLAGe61e412cf [2022-07-14 04:09:28,312 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 04:09:28,313 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-ethernet-dec-tulip-dmfe.cil.i [2022-07-14 04:09:28,361 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f51314ae9/4c3e4ce53fa74501b2ba54ccc2de72b6/FLAGe61e412cf [2022-07-14 04:09:28,865 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f51314ae9/4c3e4ce53fa74501b2ba54ccc2de72b6 [2022-07-14 04:09:28,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 04:09:28,871 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 04:09:28,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 04:09:28,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 04:09:28,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 04:09:28,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 04:09:28" (1/1) ... [2022-07-14 04:09:28,877 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67edd7a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:09:28, skipping insertion in model container [2022-07-14 04:09:28,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 04:09:28" (1/1) ... [2022-07-14 04:09:28,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 04:09:29,027 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 04:09:30,913 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323320,323333] [2022-07-14 04:09:30,916 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-ethernet-dec-tulip-dmfe.cil.i[323489,323502] [2022-07-14 04:09:30,917 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-ethernet-dec-tulip-dmfe.cil.i[323656,323669] [2022-07-14 04:09:30,917 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-ethernet-dec-tulip-dmfe.cil.i[323824,323837] [2022-07-14 04:09:30,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 04:09:30,985 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 04:09:31,141 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: pci_pmr = pci_pmr & 458752U [6161] 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 04:09:31,149 INFO L158 Benchmark]: Toolchain (without parser) took 2277.16ms. Allocated memory was 100.7MB in the beginning and 138.4MB in the end (delta: 37.7MB). Free memory was 50.4MB in the beginning and 71.6MB in the end (delta: -21.1MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. [2022-07-14 04:09:31,150 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 81.8MB. Free memory was 46.4MB in the beginning and 46.3MB in the end (delta: 77.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 04:09:31,151 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2275.16ms. Allocated memory was 100.7MB in the beginning and 138.4MB in the end (delta: 37.7MB). Free memory was 50.3MB in the beginning and 71.6MB in the end (delta: -21.3MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. [2022-07-14 04:09:31,153 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 81.8MB. Free memory was 46.4MB in the beginning and 46.3MB in the end (delta: 77.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2275.16ms. Allocated memory was 100.7MB in the beginning and 138.4MB in the end (delta: 37.7MB). Free memory was 50.3MB in the beginning and 71.6MB in the end (delta: -21.3MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: pci_pmr = pci_pmr & 458752U [6161] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: pci_pmr = pci_pmr & 458752U [6161]: 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-ethernet-dec-tulip-dmfe.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 4ee317e42bc2e06685ca0df819e5fc98feaca323581d52409851fe6eefd66a2a --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 04:09:32,891 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 04:09:32,893 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 04:09:32,935 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 04:09:32,936 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 04:09:32,937 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 04:09:32,940 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 04:09:32,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 04:09:32,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 04:09:32,949 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 04:09:32,950 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 04:09:32,952 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 04:09:32,952 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 04:09:32,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 04:09:32,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 04:09:32,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 04:09:32,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 04:09:32,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 04:09:32,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 04:09:32,970 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 04:09:32,971 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 04:09:32,971 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 04:09:32,973 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 04:09:32,974 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 04:09:32,975 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 04:09:32,981 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 04:09:32,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 04:09:32,982 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 04:09:32,983 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 04:09:32,983 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 04:09:32,984 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 04:09:32,984 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 04:09:32,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 04:09:32,986 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 04:09:32,987 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 04:09:32,988 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 04:09:32,988 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 04:09:32,989 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 04:09:32,989 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 04:09:32,989 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 04:09:32,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 04:09:32,991 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 04:09:32,996 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-14 04:09:33,031 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 04:09:33,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 04:09:33,032 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 04:09:33,032 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 04:09:33,033 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 04:09:33,033 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 04:09:33,034 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 04:09:33,034 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 04:09:33,034 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 04:09:33,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 04:09:33,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 04:09:33,035 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 04:09:33,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 04:09:33,035 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 04:09:33,036 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 04:09:33,036 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-14 04:09:33,036 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-14 04:09:33,036 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 04:09:33,036 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 04:09:33,037 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 04:09:33,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 04:09:33,037 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 04:09:33,037 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 04:09:33,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 04:09:33,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 04:09:33,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 04:09:33,038 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 04:09:33,038 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-14 04:09:33,038 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-14 04:09:33,038 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 04:09:33,039 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 04:09:33,039 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 04:09:33,039 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-14 04:09:33,039 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ee317e42bc2e06685ca0df819e5fc98feaca323581d52409851fe6eefd66a2a [2022-07-14 04:09:33,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 04:09:33,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 04:09:33,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 04:09:33,357 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 04:09:33,358 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 04:09:33,359 INFO L432 ainManager$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-ethernet-dec-tulip-dmfe.cil.i [2022-07-14 04:09:33,422 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a712e6831/af07cc371088472db1405dd1c37e5a73/FLAG619e93b8c [2022-07-14 04:09:34,243 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 04:09:34,243 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-ethernet-dec-tulip-dmfe.cil.i [2022-07-14 04:09:34,296 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a712e6831/af07cc371088472db1405dd1c37e5a73/FLAG619e93b8c [2022-07-14 04:09:34,440 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a712e6831/af07cc371088472db1405dd1c37e5a73 [2022-07-14 04:09:34,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 04:09:34,444 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 04:09:34,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 04:09:34,447 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 04:09:34,453 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 04:09:34,454 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 04:09:34" (1/1) ... [2022-07-14 04:09:34,455 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67e2a677 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:09:34, skipping insertion in model container [2022-07-14 04:09:34,455 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 04:09:34" (1/1) ... [2022-07-14 04:09:34,461 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 04:09:34,619 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 04:09:36,581 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-ethernet-dec-tulip-dmfe.cil.i[323320,323333] [2022-07-14 04:09:36,584 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-ethernet-dec-tulip-dmfe.cil.i[323489,323502] [2022-07-14 04:09:36,584 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-ethernet-dec-tulip-dmfe.cil.i[323656,323669] [2022-07-14 04:09:36,585 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-ethernet-dec-tulip-dmfe.cil.i[323824,323837] [2022-07-14 04:09:36,608 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 04:09:36,663 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-14 04:09:36,725 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 04:09:37,030 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-ethernet-dec-tulip-dmfe.cil.i[323320,323333] [2022-07-14 04:09:37,031 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-ethernet-dec-tulip-dmfe.cil.i[323489,323502] [2022-07-14 04:09:37,031 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-ethernet-dec-tulip-dmfe.cil.i[323656,323669] [2022-07-14 04:09:37,031 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-ethernet-dec-tulip-dmfe.cil.i[323824,323837] [2022-07-14 04:09:37,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 04:09:37,060 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 04:09:37,467 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-ethernet-dec-tulip-dmfe.cil.i[323320,323333] [2022-07-14 04:09:37,467 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-ethernet-dec-tulip-dmfe.cil.i[323489,323502] [2022-07-14 04:09:37,468 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-ethernet-dec-tulip-dmfe.cil.i[323656,323669] [2022-07-14 04:09:37,468 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-ethernet-dec-tulip-dmfe.cil.i[323824,323837] [2022-07-14 04:09:37,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 04:09:37,676 INFO L208 MainTranslator]: Completed translation [2022-07-14 04:09:37,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:09:37 WrapperNode [2022-07-14 04:09:37,677 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 04:09:37,678 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 04:09:37,678 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 04:09:37,679 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 04:09:37,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:09:37" (1/1) ... [2022-07-14 04:09:37,789 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:09:37" (1/1) ... [2022-07-14 04:09:37,925 INFO L137 Inliner]: procedures = 436, calls = 1985, calls flagged for inlining = 201, calls inlined = 184, statements flattened = 4910 [2022-07-14 04:09:37,927 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 04:09:37,928 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 04:09:37,928 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 04:09:37,928 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 04:09:37,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:09:37" (1/1) ... [2022-07-14 04:09:37,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:09:37" (1/1) ... [2022-07-14 04:09:37,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:09:37" (1/1) ... [2022-07-14 04:09:37,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:09:37" (1/1) ... [2022-07-14 04:09:38,065 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:09:37" (1/1) ... [2022-07-14 04:09:38,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:09:37" (1/1) ... [2022-07-14 04:09:38,174 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:09:37" (1/1) ... [2022-07-14 04:09:38,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 04:09:38,204 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 04:09:38,204 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 04:09:38,204 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 04:09:38,205 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:09:37" (1/1) ... [2022-07-14 04:09:38,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 04:09:38,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 04:09:38,236 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 04:09:38,240 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 04:09:38,268 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-14 04:09:38,268 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-14 04:09:38,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-14 04:09:38,269 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-14 04:09:38,269 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-14 04:09:38,269 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-14 04:09:38,269 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_set_filter_mode [2022-07-14 04:09:38,269 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_set_filter_mode [2022-07-14 04:09:38,269 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-14 04:09:38,270 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-14 04:09:38,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 04:09:38,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 04:09:38,270 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_resume [2022-07-14 04:09:38,270 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_resume [2022-07-14 04:09:38,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-14 04:09:38,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-14 04:09:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-14 04:09:38,271 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-14 04:09:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_dmfe_board_info [2022-07-14 04:09:38,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_dmfe_board_info [2022-07-14 04:09:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-14 04:09:38,271 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-14 04:09:38,271 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-07-14 04:09:38,272 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-07-14 04:09:38,272 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-07-14 04:09:38,272 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-07-14 04:09:38,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2022-07-14 04:09:38,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2022-07-14 04:09:38,272 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-14 04:09:38,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-14 04:09:38,273 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-14 04:09:38,273 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-14 04:09:38,273 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_reuse_skb [2022-07-14 04:09:38,273 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_reuse_skb [2022-07-14 04:09:38,273 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2022-07-14 04:09:38,273 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2022-07-14 04:09:38,273 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-14 04:09:38,274 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-14 04:09:38,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-14 04:09:38,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-14 04:09:38,274 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-14 04:09:38,274 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-14 04:09:38,274 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-14 04:09:38,274 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-14 04:09:38,275 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-14 04:09:38,275 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-14 04:09:38,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-14 04:09:38,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-14 04:09:38,275 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write [2022-07-14 04:09:38,275 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write [2022-07-14 04:09:38,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 04:09:38,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-14 04:09:38,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-14 04:09:38,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-14 04:09:38,276 INFO L130 BoogieDeclarations]: Found specification of procedure poll_dmfe [2022-07-14 04:09:38,276 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_dmfe [2022-07-14 04:09:38,276 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-14 04:09:38,276 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-14 04:09:38,276 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-14 04:09:38,277 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-14 04:09:38,277 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-07-14 04:09:38,277 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-07-14 04:09:38,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-14 04:09:38,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-14 04:09:38,277 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_remove_one [2022-07-14 04:09:38,277 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_remove_one [2022-07-14 04:09:38,278 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write_1bit [2022-07-14 04:09:38,278 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write_1bit [2022-07-14 04:09:38,278 INFO L130 BoogieDeclarations]: Found specification of procedure dm9132_id_table [2022-07-14 04:09:38,278 INFO L138 BoogieDeclarations]: Found implementation of procedure dm9132_id_table [2022-07-14 04:09:38,278 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-14 04:09:38,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-14 04:09:38,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-14 04:09:38,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-14 04:09:38,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-14 04:09:38,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-14 04:09:38,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-14 04:09:38,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-14 04:09:38,279 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_interrupt [2022-07-14 04:09:38,279 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_interrupt [2022-07-14 04:09:38,280 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-14 04:09:38,280 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-14 04:09:38,280 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read_1bit [2022-07-14 04:09:38,280 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read_1bit [2022-07-14 04:09:38,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-14 04:09:38,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-14 04:09:38,280 INFO L130 BoogieDeclarations]: Found specification of procedure cal_CRC [2022-07-14 04:09:38,281 INFO L138 BoogieDeclarations]: Found implementation of procedure cal_CRC [2022-07-14 04:09:38,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 04:09:38,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-14 04:09:38,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-14 04:09:38,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-14 04:09:38,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-14 04:09:38,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 04:09:38,281 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2022-07-14 04:09:38,282 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2022-07-14 04:09:38,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-14 04:09:38,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-14 04:09:38,282 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-14 04:09:38,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-14 04:09:38,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 04:09:38,282 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-07-14 04:09:38,283 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-07-14 04:09:38,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-14 04:09:38,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-14 04:09:38,283 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 04:09:38,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 04:09:38,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-14 04:09:38,283 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-07-14 04:09:38,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-07-14 04:09:38,284 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_free_rxbuffer [2022-07-14 04:09:38,284 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_free_rxbuffer [2022-07-14 04:09:38,284 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-14 04:09:38,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-14 04:09:38,284 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-14 04:09:38,284 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-14 04:09:38,285 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-14 04:09:38,285 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-14 04:09:38,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-14 04:09:38,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-14 04:09:38,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-14 04:09:38,285 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_stop [2022-07-14 04:09:38,285 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_stop [2022-07-14 04:09:38,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 04:09:38,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 04:09:38,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-14 04:09:38,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-14 04:09:38,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-14 04:09:38,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 04:09:38,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-14 04:09:38,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 04:09:38,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 04:09:38,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 04:09:38,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-14 04:09:38,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-14 04:09:38,287 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-14 04:09:38,287 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-14 04:09:38,287 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_open [2022-07-14 04:09:38,288 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_open [2022-07-14 04:09:38,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-14 04:09:38,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-14 04:09:38,288 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-14 04:09:38,288 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-14 04:09:38,288 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read [2022-07-14 04:09:38,288 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read [2022-07-14 04:09:38,288 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-14 04:09:38,289 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-14 04:09:38,289 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-14 04:09:38,289 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-14 04:09:38,289 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2022-07-14 04:09:38,289 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2022-07-14 04:09:38,289 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-14 04:09:38,289 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-14 04:09:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 04:09:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 04:09:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-14 04:09:38,290 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-14 04:09:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-07-14 04:09:38,290 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-07-14 04:09:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-14 04:09:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-14 04:09:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-14 04:09:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-14 04:09:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 04:09:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_init_dm910x [2022-07-14 04:09:38,291 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_init_dm910x [2022-07-14 04:09:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-14 04:09:38,291 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-14 04:09:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-14 04:09:38,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-14 04:09:38,292 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-07-14 04:09:38,292 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-07-14 04:09:38,292 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-14 04:09:38,292 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-14 04:09:38,292 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2022-07-14 04:09:38,292 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2022-07-14 04:09:38,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-14 04:09:38,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-14 04:09:38,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-14 04:09:38,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-14 04:09:38,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 04:09:38,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 04:09:38,293 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2022-07-14 04:09:38,293 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2022-07-14 04:09:38,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_dmfe_cleanup_module_14_2 [2022-07-14 04:09:38,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_dmfe_cleanup_module_14_2 [2022-07-14 04:09:38,294 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2022-07-14 04:09:38,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2022-07-14 04:09:38,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-14 04:09:38,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-14 04:09:38,294 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-07-14 04:09:38,294 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-07-14 04:09:38,295 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-14 04:09:38,295 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-14 04:09:38,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-14 04:09:38,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-14 04:09:39,030 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 04:09:39,032 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 04:09:41,387 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 04:10:24,028 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-14 04:10:24,070 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 04:10:24,094 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 04:10:24,094 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 04:10:24,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:10:24 BoogieIcfgContainer [2022-07-14 04:10:24,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 04:10:24,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 04:10:24,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 04:10:24,103 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 04:10:24,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 04:09:34" (1/3) ... [2022-07-14 04:10:24,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e24daec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 04:10:24, skipping insertion in model container [2022-07-14 04:10:24,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 04:09:37" (2/3) ... [2022-07-14 04:10:24,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e24daec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 04:10:24, skipping insertion in model container [2022-07-14 04:10:24,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 04:10:24" (3/3) ... [2022-07-14 04:10:24,106 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i [2022-07-14 04:10:24,119 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 04:10:24,119 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-14 04:10:24,205 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 04:10:24,210 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@e9a6474, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3c6d57ed [2022-07-14 04:10:24,210 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-14 04:10:24,218 INFO L276 IsEmpty]: Start isEmpty. Operand has 1711 states, 1206 states have (on average 1.306799336650083) internal successors, (1576), 1229 states have internal predecessors, (1576), 420 states have call successors, (420), 83 states have call predecessors, (420), 82 states have return successors, (414), 405 states have call predecessors, (414), 414 states have call successors, (414) [2022-07-14 04:10:24,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-14 04:10:24,235 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:10:24,236 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:10:24,237 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 04:10:24,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:10:24,241 INFO L85 PathProgramCache]: Analyzing trace with hash 355979356, now seen corresponding path program 1 times [2022-07-14 04:10:24,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:10:24,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [453002426] [2022-07-14 04:10:24,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:10:24,260 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:10:24,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:10:24,265 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 04:10:24,279 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 04:10:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:10:25,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 1113 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 04:10:25,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:10:25,524 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-14 04:10:25,524 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:10:25,525 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:10:25,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [453002426] [2022-07-14 04:10:25,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [453002426] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:10:25,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:10:25,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 04:10:25,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277686560] [2022-07-14 04:10:25,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:10:25,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 04:10:25,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:10:25,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 04:10:25,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:10:25,561 INFO L87 Difference]: Start difference. First operand has 1711 states, 1206 states have (on average 1.306799336650083) internal successors, (1576), 1229 states have internal predecessors, (1576), 420 states have call successors, (420), 83 states have call predecessors, (420), 82 states have return successors, (414), 405 states have call predecessors, (414), 414 states have call successors, (414) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-14 04:10:26,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:10:26,149 INFO L93 Difference]: Finished difference Result 4978 states and 7117 transitions. [2022-07-14 04:10:26,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 04:10:26,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 116 [2022-07-14 04:10:26,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:10:26,197 INFO L225 Difference]: With dead ends: 4978 [2022-07-14 04:10:26,197 INFO L226 Difference]: Without dead ends: 3278 [2022-07-14 04:10:26,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 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 04:10:26,221 INFO L413 NwaCegarLoop]: 2785 mSDtfsCounter, 2266 mSDsluCounter, 2317 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2266 SdHoareTripleChecker+Valid, 5102 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 04:10:26,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2266 Valid, 5102 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 04:10:26,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3278 states. [2022-07-14 04:10:26,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3278 to 3274. [2022-07-14 04:10:26,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3274 states, 2324 states have (on average 1.299053356282272) internal successors, (3019), 2369 states have internal predecessors, (3019), 787 states have call successors, (787), 161 states have call predecessors, (787), 160 states have return successors, (783), 765 states have call predecessors, (783), 783 states have call successors, (783) [2022-07-14 04:10:26,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3274 states to 3274 states and 4589 transitions. [2022-07-14 04:10:26,555 INFO L78 Accepts]: Start accepts. Automaton has 3274 states and 4589 transitions. Word has length 116 [2022-07-14 04:10:26,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:10:26,557 INFO L495 AbstractCegarLoop]: Abstraction has 3274 states and 4589 transitions. [2022-07-14 04:10:26,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-14 04:10:26,558 INFO L276 IsEmpty]: Start isEmpty. Operand 3274 states and 4589 transitions. [2022-07-14 04:10:26,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-14 04:10:26,566 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:10:26,567 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:10:26,609 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 04:10:26,783 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 04:10:26,784 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-14 04:10:26,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:10:26,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1373213958, now seen corresponding path program 1 times [2022-07-14 04:10:26,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:10:26,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [790947035] [2022-07-14 04:10:26,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:10:26,787 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:10:26,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:10:26,790 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 04:10:26,794 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 04:10:27,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:10:27,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 1161 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 04:10:27,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:10:27,935 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-14 04:10:27,935 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:10:27,935 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:10:27,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [790947035] [2022-07-14 04:10:27,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [790947035] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:10:27,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:10:27,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 04:10:27,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069891076] [2022-07-14 04:10:27,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:10:27,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 04:10:27,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:10:27,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 04:10:27,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:10:27,938 INFO L87 Difference]: Start difference. First operand 3274 states and 4589 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-14 04:10:28,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:10:28,371 INFO L93 Difference]: Finished difference Result 9688 states and 13597 transitions. [2022-07-14 04:10:28,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 04:10:28,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 122 [2022-07-14 04:10:28,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:10:28,427 INFO L225 Difference]: With dead ends: 9688 [2022-07-14 04:10:28,428 INFO L226 Difference]: Without dead ends: 6435 [2022-07-14 04:10:28,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 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 04:10:28,450 INFO L413 NwaCegarLoop]: 2787 mSDtfsCounter, 2316 mSDsluCounter, 2331 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2316 SdHoareTripleChecker+Valid, 5118 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 04:10:28,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2316 Valid, 5118 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 04:10:28,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6435 states. [2022-07-14 04:10:28,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6435 to 6405. [2022-07-14 04:10:28,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6405 states, 4563 states have (on average 1.301775147928994) internal successors, (5940), 4657 states have internal predecessors, (5940), 1522 states have call successors, (1522), 320 states have call predecessors, (1522), 317 states have return successors, (1528), 1471 states have call predecessors, (1528), 1518 states have call successors, (1528) [2022-07-14 04:10:28,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6405 states to 6405 states and 8990 transitions. [2022-07-14 04:10:28,814 INFO L78 Accepts]: Start accepts. Automaton has 6405 states and 8990 transitions. Word has length 122 [2022-07-14 04:10:28,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:10:28,814 INFO L495 AbstractCegarLoop]: Abstraction has 6405 states and 8990 transitions. [2022-07-14 04:10:28,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-14 04:10:28,815 INFO L276 IsEmpty]: Start isEmpty. Operand 6405 states and 8990 transitions. [2022-07-14 04:10:28,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-14 04:10:28,817 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:10:28,818 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:10:28,855 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 04:10:29,031 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 04:10:29,032 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 04:10:29,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:10:29,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1237945319, now seen corresponding path program 1 times [2022-07-14 04:10:29,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:10:29,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1320523354] [2022-07-14 04:10:29,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:10:29,035 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:10:29,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:10:29,037 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 04:10:29,039 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 04:10:30,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:10:30,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 04:10:30,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:10:30,354 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-14 04:10:30,354 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:10:30,354 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:10:30,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1320523354] [2022-07-14 04:10:30,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1320523354] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:10:30,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:10:30,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 04:10:30,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966737250] [2022-07-14 04:10:30,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:10:30,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 04:10:30,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:10:30,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 04:10:30,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:10:30,356 INFO L87 Difference]: Start difference. First operand 6405 states and 8990 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-14 04:10:30,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:10:30,937 INFO L93 Difference]: Finished difference Result 18231 states and 25526 transitions. [2022-07-14 04:10:30,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 04:10:30,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 122 [2022-07-14 04:10:30,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:10:31,023 INFO L225 Difference]: With dead ends: 18231 [2022-07-14 04:10:31,024 INFO L226 Difference]: Without dead ends: 11847 [2022-07-14 04:10:31,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 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 04:10:31,066 INFO L413 NwaCegarLoop]: 2854 mSDtfsCounter, 2029 mSDsluCounter, 2320 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2029 SdHoareTripleChecker+Valid, 5174 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 04:10:31,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2029 Valid, 5174 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 04:10:31,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11847 states. [2022-07-14 04:10:31,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11847 to 11813. [2022-07-14 04:10:31,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11813 states, 8415 states have (on average 1.2981580510992277) internal successors, (10924), 8597 states have internal predecessors, (10924), 2784 states have call successors, (2784), 618 states have call predecessors, (2784), 611 states have return successors, (2806), 2681 states have call predecessors, (2806), 2780 states have call successors, (2806) [2022-07-14 04:10:31,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11813 states to 11813 states and 16514 transitions. [2022-07-14 04:10:31,620 INFO L78 Accepts]: Start accepts. Automaton has 11813 states and 16514 transitions. Word has length 122 [2022-07-14 04:10:31,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:10:31,626 INFO L495 AbstractCegarLoop]: Abstraction has 11813 states and 16514 transitions. [2022-07-14 04:10:31,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-14 04:10:31,629 INFO L276 IsEmpty]: Start isEmpty. Operand 11813 states and 16514 transitions. [2022-07-14 04:10:31,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-07-14 04:10:31,632 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:10:31,632 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:10:31,671 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-14 04:10:31,851 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 04:10:31,852 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 04:10:31,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:10:31,852 INFO L85 PathProgramCache]: Analyzing trace with hash -155362643, now seen corresponding path program 1 times [2022-07-14 04:10:31,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:10:31,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [212426355] [2022-07-14 04:10:31,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:10:31,854 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:10:31,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:10:31,858 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 04:10:31,860 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 04:10:32,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:10:32,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 1158 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 04:10:32,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:10:32,946 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-14 04:10:32,946 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:10:32,946 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:10:32,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [212426355] [2022-07-14 04:10:32,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [212426355] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:10:32,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:10:32,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 04:10:32,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947036413] [2022-07-14 04:10:32,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:10:32,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 04:10:32,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:10:32,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 04:10:32,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:10:32,948 INFO L87 Difference]: Start difference. First operand 11813 states and 16514 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-14 04:10:34,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:10:34,070 INFO L93 Difference]: Finished difference Result 34375 states and 48048 transitions. [2022-07-14 04:10:34,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 04:10:34,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 128 [2022-07-14 04:10:34,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:10:34,218 INFO L225 Difference]: With dead ends: 34375 [2022-07-14 04:10:34,218 INFO L226 Difference]: Without dead ends: 22583 [2022-07-14 04:10:34,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 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 04:10:34,288 INFO L413 NwaCegarLoop]: 2767 mSDtfsCounter, 2161 mSDsluCounter, 2317 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2161 SdHoareTripleChecker+Valid, 5084 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 04:10:34,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2161 Valid, 5084 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 04:10:34,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22583 states. [2022-07-14 04:10:35,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22583 to 22547. [2022-07-14 04:10:35,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22547 states, 16023 states have (on average 1.2976346501903513) internal successors, (20792), 16371 states have internal predecessors, (20792), 5316 states have call successors, (5316), 1218 states have call predecessors, (5316), 1205 states have return successors, (5370), 5101 states have call predecessors, (5370), 5312 states have call successors, (5370) [2022-07-14 04:10:35,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22547 states to 22547 states and 31478 transitions. [2022-07-14 04:10:35,469 INFO L78 Accepts]: Start accepts. Automaton has 22547 states and 31478 transitions. Word has length 128 [2022-07-14 04:10:35,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:10:35,481 INFO L495 AbstractCegarLoop]: Abstraction has 22547 states and 31478 transitions. [2022-07-14 04:10:35,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-14 04:10:35,481 INFO L276 IsEmpty]: Start isEmpty. Operand 22547 states and 31478 transitions. [2022-07-14 04:10:35,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-07-14 04:10:35,483 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:10:35,483 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 04:10:35,524 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 04:10:35,703 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 04:10:35,704 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 04:10:35,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:10:35,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1030222312, now seen corresponding path program 1 times [2022-07-14 04:10:35,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:10:35,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [410166133] [2022-07-14 04:10:35,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:10:35,764 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:10:35,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:10:35,766 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 04:10:35,768 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 04:10:36,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:10:36,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 1192 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 04:10:36,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:10:36,951 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-14 04:10:36,952 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:10:36,952 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:10:36,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [410166133] [2022-07-14 04:10:36,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [410166133] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:10:36,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:10:36,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 04:10:36,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371371040] [2022-07-14 04:10:36,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:10:36,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 04:10:36,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:10:36,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 04:10:36,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:10:36,955 INFO L87 Difference]: Start difference. First operand 22547 states and 31478 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-14 04:10:38,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:10:38,003 INFO L93 Difference]: Finished difference Result 41048 states and 57339 transitions. [2022-07-14 04:10:38,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 04:10:38,004 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 126 [2022-07-14 04:10:38,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:10:38,096 INFO L225 Difference]: With dead ends: 41048 [2022-07-14 04:10:38,097 INFO L226 Difference]: Without dead ends: 18522 [2022-07-14 04:10:38,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 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 04:10:38,183 INFO L413 NwaCegarLoop]: 3341 mSDtfsCounter, 1654 mSDsluCounter, 2317 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1654 SdHoareTripleChecker+Valid, 5658 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 04:10:38,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1654 Valid, 5658 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 04:10:38,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18522 states. [2022-07-14 04:10:38,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18522 to 18482. [2022-07-14 04:10:38,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18482 states, 13297 states have (on average 1.3028502669775137) internal successors, (17324), 13590 states have internal predecessors, (17324), 4166 states have call successors, (4166), 1031 states have call predecessors, (4166), 1016 states have return successors, (4191), 3974 states have call predecessors, (4191), 4162 states have call successors, (4191) [2022-07-14 04:10:39,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18482 states to 18482 states and 25681 transitions. [2022-07-14 04:10:39,052 INFO L78 Accepts]: Start accepts. Automaton has 18482 states and 25681 transitions. Word has length 126 [2022-07-14 04:10:39,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:10:39,053 INFO L495 AbstractCegarLoop]: Abstraction has 18482 states and 25681 transitions. [2022-07-14 04:10:39,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-14 04:10:39,053 INFO L276 IsEmpty]: Start isEmpty. Operand 18482 states and 25681 transitions. [2022-07-14 04:10:39,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-07-14 04:10:39,055 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:10:39,055 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 8, 8, 8, 8, 8, 8, 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] [2022-07-14 04:10:39,087 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 04:10:39,279 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 04:10:39,280 INFO L420 AbstractCegarLoop]: === Iteration 6 === 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 04:10:39,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:10:39,280 INFO L85 PathProgramCache]: Analyzing trace with hash 982818423, now seen corresponding path program 1 times [2022-07-14 04:10:39,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:10:39,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [825520522] [2022-07-14 04:10:39,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:10:39,282 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:10:39,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:10:39,285 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 04:10:39,288 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 04:10:40,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:10:40,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 1189 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 04:10:40,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:10:40,485 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-14 04:10:40,486 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:10:40,486 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:10:40,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [825520522] [2022-07-14 04:10:40,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [825520522] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:10:40,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:10:40,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 04:10:40,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572548416] [2022-07-14 04:10:40,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:10:40,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 04:10:40,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:10:40,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 04:10:40,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:10:40,489 INFO L87 Difference]: Start difference. First operand 18482 states and 25681 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-14 04:10:41,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:10:41,622 INFO L93 Difference]: Finished difference Result 53720 states and 74704 transitions. [2022-07-14 04:10:41,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 04:10:41,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 145 [2022-07-14 04:10:41,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:10:41,816 INFO L225 Difference]: With dead ends: 53720 [2022-07-14 04:10:41,817 INFO L226 Difference]: Without dead ends: 35259 [2022-07-14 04:10:41,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 143 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 04:10:41,901 INFO L413 NwaCegarLoop]: 3145 mSDtfsCounter, 2327 mSDsluCounter, 2368 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2327 SdHoareTripleChecker+Valid, 5513 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 04:10:41,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2327 Valid, 5513 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 04:10:41,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35259 states. [2022-07-14 04:10:43,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35259 to 35201. [2022-07-14 04:10:43,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35201 states, 25292 states have (on average 1.3030997944013918) internal successors, (32958), 25884 states have internal predecessors, (32958), 7961 states have call successors, (7961), 1974 states have call predecessors, (7961), 1945 states have return successors, (8015), 7562 states have call predecessors, (8015), 7957 states have call successors, (8015) [2022-07-14 04:10:43,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35201 states to 35201 states and 48934 transitions. [2022-07-14 04:10:43,650 INFO L78 Accepts]: Start accepts. Automaton has 35201 states and 48934 transitions. Word has length 145 [2022-07-14 04:10:43,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:10:43,651 INFO L495 AbstractCegarLoop]: Abstraction has 35201 states and 48934 transitions. [2022-07-14 04:10:43,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-14 04:10:43,651 INFO L276 IsEmpty]: Start isEmpty. Operand 35201 states and 48934 transitions. [2022-07-14 04:10:43,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-14 04:10:43,653 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:10:43,653 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 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] [2022-07-14 04:10:43,686 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-07-14 04:10:43,875 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 04:10:43,875 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 04:10:43,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:10:43,876 INFO L85 PathProgramCache]: Analyzing trace with hash -361805188, now seen corresponding path program 1 times [2022-07-14 04:10:43,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:10:43,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1375218954] [2022-07-14 04:10:43,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:10:43,878 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:10:43,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:10:43,880 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 04:10:43,882 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 04:10:44,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:10:44,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 04:10:44,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:10:45,640 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-14 04:10:45,640 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:10:45,641 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:10:45,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1375218954] [2022-07-14 04:10:45,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1375218954] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:10:45,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:10:45,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 04:10:45,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241674585] [2022-07-14 04:10:45,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:10:45,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 04:10:45,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:10:45,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 04:10:45,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:10:45,643 INFO L87 Difference]: Start difference. First operand 35201 states and 48934 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 04:10:47,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:10:47,622 INFO L93 Difference]: Finished difference Result 105449 states and 148202 transitions. [2022-07-14 04:10:47,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 04:10:47,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 183 [2022-07-14 04:10:47,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:10:48,093 INFO L225 Difference]: With dead ends: 105449 [2022-07-14 04:10:48,093 INFO L226 Difference]: Without dead ends: 70325 [2022-07-14 04:10:48,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 181 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 04:10:48,424 INFO L413 NwaCegarLoop]: 4110 mSDtfsCounter, 2305 mSDsluCounter, 2296 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2305 SdHoareTripleChecker+Valid, 6406 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 04:10:48,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2305 Valid, 6406 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 04:10:48,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70325 states. [2022-07-14 04:10:50,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70325 to 70299. [2022-07-14 04:10:50,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70299 states, 50510 states have (on average 1.2914670362304494) internal successors, (65232), 51692 states have internal predecessors, (65232), 15897 states have call successors, (15897), 3946 states have call predecessors, (15897), 3889 states have return successors, (16623), 15100 states have call predecessors, (16623), 15893 states have call successors, (16623) [2022-07-14 04:10:51,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70299 states to 70299 states and 97752 transitions. [2022-07-14 04:10:51,340 INFO L78 Accepts]: Start accepts. Automaton has 70299 states and 97752 transitions. Word has length 183 [2022-07-14 04:10:51,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:10:51,341 INFO L495 AbstractCegarLoop]: Abstraction has 70299 states and 97752 transitions. [2022-07-14 04:10:51,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 04:10:51,342 INFO L276 IsEmpty]: Start isEmpty. Operand 70299 states and 97752 transitions. [2022-07-14 04:10:51,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-14 04:10:51,346 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:10:51,346 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 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] [2022-07-14 04:10:51,388 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 04:10:51,559 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 04:10:51,560 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 04:10:51,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:10:51,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1546652602, now seen corresponding path program 1 times [2022-07-14 04:10:51,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:10:51,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [243357022] [2022-07-14 04:10:51,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:10:51,562 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:10:51,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:10:51,565 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 04:10:51,567 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 04:10:52,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:10:52,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 04:10:52,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:10:53,356 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-14 04:10:53,357 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:10:53,357 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:10:53,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [243357022] [2022-07-14 04:10:53,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [243357022] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:10:53,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:10:53,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 04:10:53,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169874272] [2022-07-14 04:10:53,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:10:53,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 04:10:53,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:10:53,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 04:10:53,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:10:53,359 INFO L87 Difference]: Start difference. First operand 70299 states and 97752 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 04:10:54,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:10:54,921 INFO L93 Difference]: Finished difference Result 105423 states and 145991 transitions. [2022-07-14 04:10:54,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 04:10:54,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 183 [2022-07-14 04:10:54,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:10:55,129 INFO L225 Difference]: With dead ends: 105423 [2022-07-14 04:10:55,130 INFO L226 Difference]: Without dead ends: 35201 [2022-07-14 04:10:55,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 181 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 04:10:55,388 INFO L413 NwaCegarLoop]: 2352 mSDtfsCounter, 2297 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2297 SdHoareTripleChecker+Valid, 2352 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 04:10:55,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2297 Valid, 2352 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 04:10:55,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35201 states. [2022-07-14 04:10:56,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35201 to 35201. [2022-07-14 04:10:56,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35201 states, 25292 states have (on average 1.277953503083979) internal successors, (32322), 25884 states have internal predecessors, (32322), 7961 states have call successors, (7961), 1974 states have call predecessors, (7961), 1945 states have return successors, (8015), 7562 states have call predecessors, (8015), 7957 states have call successors, (8015) [2022-07-14 04:10:56,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35201 states to 35201 states and 48298 transitions. [2022-07-14 04:10:56,743 INFO L78 Accepts]: Start accepts. Automaton has 35201 states and 48298 transitions. Word has length 183 [2022-07-14 04:10:56,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:10:56,743 INFO L495 AbstractCegarLoop]: Abstraction has 35201 states and 48298 transitions. [2022-07-14 04:10:56,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 04:10:56,744 INFO L276 IsEmpty]: Start isEmpty. Operand 35201 states and 48298 transitions. [2022-07-14 04:10:56,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-14 04:10:56,749 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:10:56,749 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 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] [2022-07-14 04:10:56,784 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 04:10:56,963 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 04:10:56,964 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 04:10:56,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:10:56,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1054026428, now seen corresponding path program 1 times [2022-07-14 04:10:56,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:10:56,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2109120634] [2022-07-14 04:10:56,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:10:56,966 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:10:56,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:10:56,969 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 04:10:56,970 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 04:10:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:10:57,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 1254 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 04:10:57,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:10:58,743 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-14 04:10:58,743 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:10:58,743 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:10:58,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2109120634] [2022-07-14 04:10:58,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2109120634] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:10:58,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:10:58,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 04:10:58,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634637230] [2022-07-14 04:10:58,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:10:58,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 04:10:58,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:10:58,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 04:10:58,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:10:58,746 INFO L87 Difference]: Start difference. First operand 35201 states and 48298 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 04:10:59,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:10:59,851 INFO L93 Difference]: Finished difference Result 70325 states and 96505 transitions. [2022-07-14 04:10:59,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 04:10:59,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 183 [2022-07-14 04:10:59,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:10:59,990 INFO L225 Difference]: With dead ends: 70325 [2022-07-14 04:10:59,991 INFO L226 Difference]: Without dead ends: 35201 [2022-07-14 04:11:00,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 181 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 04:11:00,103 INFO L413 NwaCegarLoop]: 2351 mSDtfsCounter, 2295 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2295 SdHoareTripleChecker+Valid, 2351 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 04:11:00,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2295 Valid, 2351 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 04:11:00,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35201 states. [2022-07-14 04:11:00,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35201 to 35201. [2022-07-14 04:11:01,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35201 states, 25292 states have (on average 1.2766882808793294) internal successors, (32290), 25884 states have internal predecessors, (32290), 7961 states have call successors, (7961), 1974 states have call predecessors, (7961), 1945 states have return successors, (8015), 7562 states have call predecessors, (8015), 7957 states have call successors, (8015) [2022-07-14 04:11:01,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35201 states to 35201 states and 48266 transitions. [2022-07-14 04:11:01,344 INFO L78 Accepts]: Start accepts. Automaton has 35201 states and 48266 transitions. Word has length 183 [2022-07-14 04:11:01,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:11:01,349 INFO L495 AbstractCegarLoop]: Abstraction has 35201 states and 48266 transitions. [2022-07-14 04:11:01,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 04:11:01,349 INFO L276 IsEmpty]: Start isEmpty. Operand 35201 states and 48266 transitions. [2022-07-14 04:11:01,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-14 04:11:01,350 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:11:01,351 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 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] [2022-07-14 04:11:01,384 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 04:11:01,576 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 04:11:01,577 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 04:11:01,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:11:01,577 INFO L85 PathProgramCache]: Analyzing trace with hash 2007966586, now seen corresponding path program 1 times [2022-07-14 04:11:01,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:11:01,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [828905786] [2022-07-14 04:11:01,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:11:01,579 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:11:01,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:11:01,581 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 04:11:01,595 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 04:11:02,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:11:02,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 1253 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 04:11:02,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:11:03,268 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-14 04:11:03,269 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:11:03,269 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:11:03,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [828905786] [2022-07-14 04:11:03,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [828905786] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:11:03,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:11:03,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 04:11:03,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261485724] [2022-07-14 04:11:03,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:11:03,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 04:11:03,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:11:03,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 04:11:03,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:11:03,272 INFO L87 Difference]: Start difference. First operand 35201 states and 48266 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 04:11:04,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:11:04,314 INFO L93 Difference]: Finished difference Result 70293 states and 96409 transitions. [2022-07-14 04:11:04,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 04:11:04,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 183 [2022-07-14 04:11:04,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:11:04,465 INFO L225 Difference]: With dead ends: 70293 [2022-07-14 04:11:04,466 INFO L226 Difference]: Without dead ends: 35169 [2022-07-14 04:11:04,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 181 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 04:11:04,629 INFO L413 NwaCegarLoop]: 2341 mSDtfsCounter, 2288 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2288 SdHoareTripleChecker+Valid, 2341 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 04:11:04,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2288 Valid, 2341 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 04:11:04,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35169 states. [2022-07-14 04:11:05,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35169 to 35169. [2022-07-14 04:11:05,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35169 states, 25260 states have (on average 1.2707046714172605) internal successors, (32098), 25852 states have internal predecessors, (32098), 7961 states have call successors, (7961), 1974 states have call predecessors, (7961), 1945 states have return successors, (8015), 7562 states have call predecessors, (8015), 7957 states have call successors, (8015) [2022-07-14 04:11:05,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35169 states to 35169 states and 48074 transitions. [2022-07-14 04:11:05,834 INFO L78 Accepts]: Start accepts. Automaton has 35169 states and 48074 transitions. Word has length 183 [2022-07-14 04:11:05,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:11:05,835 INFO L495 AbstractCegarLoop]: Abstraction has 35169 states and 48074 transitions. [2022-07-14 04:11:05,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 04:11:05,835 INFO L276 IsEmpty]: Start isEmpty. Operand 35169 states and 48074 transitions. [2022-07-14 04:11:05,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-14 04:11:05,837 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:11:05,837 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 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] [2022-07-14 04:11:05,872 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-14 04:11:06,059 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 04:11:06,060 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 04:11:06,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:11:06,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1700673724, now seen corresponding path program 1 times [2022-07-14 04:11:06,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:11:06,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1175325499] [2022-07-14 04:11:06,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:11:06,061 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:11:06,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:11:06,063 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 04:11:06,066 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 04:11:06,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:11:06,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 1257 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 04:11:06,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:11:07,784 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-14 04:11:07,784 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:11:07,784 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:11:07,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1175325499] [2022-07-14 04:11:07,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1175325499] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:11:07,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:11:07,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 04:11:07,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845920889] [2022-07-14 04:11:07,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:11:07,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 04:11:07,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:11:07,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 04:11:07,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:11:07,786 INFO L87 Difference]: Start difference. First operand 35169 states and 48074 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 04:11:08,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:11:08,934 INFO L93 Difference]: Finished difference Result 69973 states and 95753 transitions. [2022-07-14 04:11:08,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 04:11:08,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 187 [2022-07-14 04:11:08,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:11:09,101 INFO L225 Difference]: With dead ends: 69973 [2022-07-14 04:11:09,102 INFO L226 Difference]: Without dead ends: 34881 [2022-07-14 04:11:09,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 185 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 04:11:09,234 INFO L413 NwaCegarLoop]: 2322 mSDtfsCounter, 2261 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2261 SdHoareTripleChecker+Valid, 2322 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 04:11:09,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2261 Valid, 2322 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 04:11:09,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34881 states. [2022-07-14 04:11:10,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34881 to 34881. [2022-07-14 04:11:10,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34881 states, 24972 states have (on average 1.2648566394361684) internal successors, (31586), 25564 states have internal predecessors, (31586), 7961 states have call successors, (7961), 1974 states have call predecessors, (7961), 1945 states have return successors, (8015), 7562 states have call predecessors, (8015), 7957 states have call successors, (8015) [2022-07-14 04:11:10,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34881 states to 34881 states and 47562 transitions. [2022-07-14 04:11:10,631 INFO L78 Accepts]: Start accepts. Automaton has 34881 states and 47562 transitions. Word has length 187 [2022-07-14 04:11:10,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:11:10,632 INFO L495 AbstractCegarLoop]: Abstraction has 34881 states and 47562 transitions. [2022-07-14 04:11:10,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 04:11:10,632 INFO L276 IsEmpty]: Start isEmpty. Operand 34881 states and 47562 transitions. [2022-07-14 04:11:10,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-14 04:11:10,634 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:11:10,634 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 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] [2022-07-14 04:11:10,663 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 04:11:10,855 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 04:11:10,855 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 04:11:10,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:11:10,856 INFO L85 PathProgramCache]: Analyzing trace with hash 908113734, now seen corresponding path program 1 times [2022-07-14 04:11:10,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:11:10,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1869113951] [2022-07-14 04:11:10,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:11:10,857 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:11:10,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:11:10,858 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 04:11:10,859 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 04:11:11,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:11:11,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 1256 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 04:11:11,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:11:12,574 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-14 04:11:12,574 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:11:12,575 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:11:12,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1869113951] [2022-07-14 04:11:12,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1869113951] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:11:12,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:11:12,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 04:11:12,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894100077] [2022-07-14 04:11:12,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:11:12,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 04:11:12,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:11:12,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 04:11:12,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:11:12,577 INFO L87 Difference]: Start difference. First operand 34881 states and 47562 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 04:11:13,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:11:13,550 INFO L93 Difference]: Finished difference Result 69685 states and 95161 transitions. [2022-07-14 04:11:13,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 04:11:13,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 187 [2022-07-14 04:11:13,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:11:13,677 INFO L225 Difference]: With dead ends: 69685 [2022-07-14 04:11:13,677 INFO L226 Difference]: Without dead ends: 34881 [2022-07-14 04:11:13,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 185 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 04:11:13,774 INFO L413 NwaCegarLoop]: 2321 mSDtfsCounter, 2258 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2258 SdHoareTripleChecker+Valid, 2321 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 04:11:13,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2258 Valid, 2321 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 04:11:13,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34881 states. [2022-07-14 04:11:15,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34881 to 34881. [2022-07-14 04:11:15,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34881 states, 24972 states have (on average 1.262614127823162) internal successors, (31530), 25564 states have internal predecessors, (31530), 7961 states have call successors, (7961), 1974 states have call predecessors, (7961), 1945 states have return successors, (8015), 7562 states have call predecessors, (8015), 7957 states have call successors, (8015) [2022-07-14 04:11:15,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34881 states to 34881 states and 47506 transitions. [2022-07-14 04:11:15,264 INFO L78 Accepts]: Start accepts. Automaton has 34881 states and 47506 transitions. Word has length 187 [2022-07-14 04:11:15,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:11:15,264 INFO L495 AbstractCegarLoop]: Abstraction has 34881 states and 47506 transitions. [2022-07-14 04:11:15,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 04:11:15,264 INFO L276 IsEmpty]: Start isEmpty. Operand 34881 states and 47506 transitions. [2022-07-14 04:11:15,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-14 04:11:15,266 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:11:15,266 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 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] [2022-07-14 04:11:15,288 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 04:11:15,466 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 04:11:15,467 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 04:11:15,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:11:15,467 INFO L85 PathProgramCache]: Analyzing trace with hash 853720836, now seen corresponding path program 1 times [2022-07-14 04:11:15,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:11:15,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [738133578] [2022-07-14 04:11:15,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:11:15,469 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:11:15,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:11:15,470 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 04:11:15,471 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 04:11:16,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:11:16,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 04:11:16,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:11:17,169 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-14 04:11:17,169 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:11:17,169 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:11:17,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [738133578] [2022-07-14 04:11:17,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [738133578] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:11:17,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:11:17,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 04:11:17,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307031892] [2022-07-14 04:11:17,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:11:17,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 04:11:17,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:11:17,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 04:11:17,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:11:17,172 INFO L87 Difference]: Start difference. First operand 34881 states and 47506 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 04:11:18,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:11:18,467 INFO L93 Difference]: Finished difference Result 69637 states and 95001 transitions. [2022-07-14 04:11:18,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 04:11:18,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 187 [2022-07-14 04:11:18,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:11:18,601 INFO L225 Difference]: With dead ends: 69637 [2022-07-14 04:11:18,602 INFO L226 Difference]: Without dead ends: 34833 [2022-07-14 04:11:18,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 185 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 04:11:18,702 INFO L413 NwaCegarLoop]: 2317 mSDtfsCounter, 2253 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2253 SdHoareTripleChecker+Valid, 2317 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 04:11:18,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2253 Valid, 2317 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 04:11:18,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34833 states. [2022-07-14 04:11:20,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34833 to 34833. [2022-07-14 04:11:20,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34833 states, 24924 states have (on average 1.2608730540844166) internal successors, (31426), 25516 states have internal predecessors, (31426), 7961 states have call successors, (7961), 1974 states have call predecessors, (7961), 1945 states have return successors, (8015), 7562 states have call predecessors, (8015), 7957 states have call successors, (8015) [2022-07-14 04:11:20,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34833 states to 34833 states and 47402 transitions. [2022-07-14 04:11:20,225 INFO L78 Accepts]: Start accepts. Automaton has 34833 states and 47402 transitions. Word has length 187 [2022-07-14 04:11:20,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:11:20,226 INFO L495 AbstractCegarLoop]: Abstraction has 34833 states and 47402 transitions. [2022-07-14 04:11:20,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 04:11:20,226 INFO L276 IsEmpty]: Start isEmpty. Operand 34833 states and 47402 transitions. [2022-07-14 04:11:20,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-14 04:11:20,228 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:11:20,228 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 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] [2022-07-14 04:11:20,255 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 04:11:20,431 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 04:11:20,431 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 04:11:20,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:11:20,432 INFO L85 PathProgramCache]: Analyzing trace with hash 436324230, now seen corresponding path program 1 times [2022-07-14 04:11:20,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:11:20,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2098324698] [2022-07-14 04:11:20,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:11:20,433 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:11:20,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:11:20,434 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 04:11:20,435 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 04:11:21,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:11:21,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 1254 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 04:11:21,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:11:22,497 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-14 04:11:22,498 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:11:22,498 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:11:22,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2098324698] [2022-07-14 04:11:22,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2098324698] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:11:22,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:11:22,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 04:11:22,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035141821] [2022-07-14 04:11:22,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:11:22,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 04:11:22,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:11:22,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 04:11:22,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:11:22,501 INFO L87 Difference]: Start difference. First operand 34833 states and 47402 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 04:11:24,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 04:11:24,938 INFO L93 Difference]: Finished difference Result 103505 states and 141056 transitions. [2022-07-14 04:11:24,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 04:11:24,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 187 [2022-07-14 04:11:24,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 04:11:25,308 INFO L225 Difference]: With dead ends: 103505 [2022-07-14 04:11:25,309 INFO L226 Difference]: Without dead ends: 68749 [2022-07-14 04:11:25,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 185 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 04:11:25,474 INFO L413 NwaCegarLoop]: 2720 mSDtfsCounter, 2196 mSDsluCounter, 2285 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2196 SdHoareTripleChecker+Valid, 5005 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 04:11:25,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2196 Valid, 5005 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 04:11:25,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68749 states. [2022-07-14 04:11:27,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68749 to 68723. [2022-07-14 04:11:27,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68723 states, 49222 states have (on average 1.2604932753646743) internal successors, (62044), 50404 states have internal predecessors, (62044), 15609 states have call successors, (15609), 3946 states have call predecessors, (15609), 3889 states have return successors, (15849), 14812 states have call predecessors, (15849), 15605 states have call successors, (15849) [2022-07-14 04:11:28,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68723 states to 68723 states and 93502 transitions. [2022-07-14 04:11:28,296 INFO L78 Accepts]: Start accepts. Automaton has 68723 states and 93502 transitions. Word has length 187 [2022-07-14 04:11:28,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 04:11:28,297 INFO L495 AbstractCegarLoop]: Abstraction has 68723 states and 93502 transitions. [2022-07-14 04:11:28,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-14 04:11:28,297 INFO L276 IsEmpty]: Start isEmpty. Operand 68723 states and 93502 transitions. [2022-07-14 04:11:28,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-14 04:11:28,298 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 04:11:28,299 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 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] [2022-07-14 04:11:28,327 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-14 04:11:28,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 04:11:28,499 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 04:11:28,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 04:11:28,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1115596484, now seen corresponding path program 1 times [2022-07-14 04:11:28,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 04:11:28,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1018333891] [2022-07-14 04:11:28,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 04:11:28,501 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 04:11:28,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 04:11:28,502 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 04:11:28,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-14 04:11:29,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 04:11:29,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 1253 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 04:11:29,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 04:11:29,896 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-07-14 04:11:29,896 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 04:11:29,896 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 04:11:29,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1018333891] [2022-07-14 04:11:29,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1018333891] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 04:11:29,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 04:11:29,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 04:11:29,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059400531] [2022-07-14 04:11:29,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 04:11:29,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 04:11:29,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 04:11:29,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 04:11:29,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 04:11:29,898 INFO L87 Difference]: Start difference. First operand 68723 states and 93502 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18)