./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2a992b8f7caf2083ee3b7e2acdd5fd118d6f91728d6dd0ef901811e301ef25da --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 16:25:44,157 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 16:25:44,159 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 16:25:44,209 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 16:25:44,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 16:25:44,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 16:25:44,214 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 16:25:44,217 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 16:25:44,218 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 16:25:44,219 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 16:25:44,220 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 16:25:44,221 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 16:25:44,222 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 16:25:44,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 16:25:44,225 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 16:25:44,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 16:25:44,228 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 16:25:44,231 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 16:25:44,232 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 16:25:44,235 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 16:25:44,237 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 16:25:44,239 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 16:25:44,240 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 16:25:44,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 16:25:44,241 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 16:25:44,243 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 16:25:44,246 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 16:25:44,246 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 16:25:44,247 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 16:25:44,247 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 16:25:44,248 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 16:25:44,248 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 16:25:44,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 16:25:44,250 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 16:25:44,250 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 16:25:44,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 16:25:44,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 16:25:44,252 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 16:25:44,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 16:25:44,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 16:25:44,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 16:25:44,253 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 16:25:44,254 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 16:25:44,274 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 16:25:44,274 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 16:25:44,274 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 16:25:44,275 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 16:25:44,275 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 16:25:44,275 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 16:25:44,276 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 16:25:44,276 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 16:25:44,276 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 16:25:44,277 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 16:25:44,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 16:25:44,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 16:25:44,277 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 16:25:44,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 16:25:44,277 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 16:25:44,277 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 16:25:44,278 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 16:25:44,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 16:25:44,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 16:25:44,279 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 16:25:44,279 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 16:25:44,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 16:25:44,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 16:25:44,279 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 16:25:44,280 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 16:25:44,280 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 16:25:44,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 16:25:44,280 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 16:25:44,280 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 16:25:44,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 16:25:44,280 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a992b8f7caf2083ee3b7e2acdd5fd118d6f91728d6dd0ef901811e301ef25da [2022-07-12 16:25:44,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 16:25:44,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 16:25:44,463 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 16:25:44,464 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 16:25:44,464 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 16:25:44,465 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2022-07-12 16:25:44,525 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf5a9b773/b809d6c9a6b14ec8bd75797bb04aa2b3/FLAG8518420fc [2022-07-12 16:25:45,245 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 16:25:45,246 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2022-07-12 16:25:45,288 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf5a9b773/b809d6c9a6b14ec8bd75797bb04aa2b3/FLAG8518420fc [2022-07-12 16:25:45,338 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf5a9b773/b809d6c9a6b14ec8bd75797bb04aa2b3 [2022-07-12 16:25:45,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 16:25:45,342 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 16:25:45,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 16:25:45,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 16:25:45,347 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 16:25:45,348 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:25:45" (1/1) ... [2022-07-12 16:25:45,349 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72e51ea0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:25:45, skipping insertion in model container [2022-07-12 16:25:45,349 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:25:45" (1/1) ... [2022-07-12 16:25:45,354 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 16:25:45,480 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 16:25:47,337 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375187,375200] [2022-07-12 16:25:47,340 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375356,375369] [2022-07-12 16:25:47,340 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375523,375536] [2022-07-12 16:25:47,341 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375691,375704] [2022-07-12 16:25:47,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:25:47,394 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 16:25:47,519 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckException: Type check failed for C: val = val & 255UL [6668] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:597) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:132) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:483) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:289) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:244) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-12 16:25:47,527 INFO L158 Benchmark]: Toolchain (without parser) took 2183.62ms. Allocated memory was 165.7MB in the beginning and 312.5MB in the end (delta: 146.8MB). Free memory was 122.3MB in the beginning and 199.5MB in the end (delta: -77.2MB). Peak memory consumption was 76.8MB. Max. memory is 16.1GB. [2022-07-12 16:25:47,528 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 92.3MB. Free memory is still 50.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 16:25:47,529 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2180.69ms. Allocated memory was 165.7MB in the beginning and 312.5MB in the end (delta: 146.8MB). Free memory was 122.3MB in the beginning and 199.5MB in the end (delta: -77.2MB). Peak memory consumption was 76.8MB. Max. memory is 16.1GB. [2022-07-12 16:25:47,530 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 92.3MB. Free memory is still 50.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2180.69ms. Allocated memory was 165.7MB in the beginning and 312.5MB in the end (delta: 146.8MB). Free memory was 122.3MB in the beginning and 199.5MB in the end (delta: -77.2MB). Peak memory consumption was 76.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: val = val & 255UL [6668] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: val = val & 255UL [6668]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2a992b8f7caf2083ee3b7e2acdd5fd118d6f91728d6dd0ef901811e301ef25da --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 16:25:49,005 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 16:25:49,007 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 16:25:49,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 16:25:49,040 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 16:25:49,041 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 16:25:49,044 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 16:25:49,047 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 16:25:49,048 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 16:25:49,051 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 16:25:49,052 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 16:25:49,054 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 16:25:49,054 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 16:25:49,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 16:25:49,056 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 16:25:49,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 16:25:49,061 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 16:25:49,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 16:25:49,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 16:25:49,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 16:25:49,068 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 16:25:49,069 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 16:25:49,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 16:25:49,071 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 16:25:49,072 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 16:25:49,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 16:25:49,077 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 16:25:49,083 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 16:25:49,084 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 16:25:49,084 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 16:25:49,084 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 16:25:49,085 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 16:25:49,086 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 16:25:49,086 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 16:25:49,088 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 16:25:49,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 16:25:49,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 16:25:49,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 16:25:49,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 16:25:49,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 16:25:49,090 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 16:25:49,091 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 16:25:49,098 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 16:25:49,122 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 16:25:49,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 16:25:49,122 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 16:25:49,122 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 16:25:49,123 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 16:25:49,123 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 16:25:49,124 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 16:25:49,124 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 16:25:49,124 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 16:25:49,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 16:25:49,125 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 16:25:49,125 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 16:25:49,125 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 16:25:49,125 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 16:25:49,125 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 16:25:49,126 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 16:25:49,126 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 16:25:49,126 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 16:25:49,126 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 16:25:49,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 16:25:49,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 16:25:49,127 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 16:25:49,127 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 16:25:49,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 16:25:49,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 16:25:49,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 16:25:49,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 16:25:49,127 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 16:25:49,128 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 16:25:49,128 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 16:25:49,128 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 16:25:49,128 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 16:25:49,128 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 16:25:49,128 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a992b8f7caf2083ee3b7e2acdd5fd118d6f91728d6dd0ef901811e301ef25da [2022-07-12 16:25:49,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 16:25:49,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 16:25:49,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 16:25:49,398 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 16:25:49,398 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 16:25:49,399 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2022-07-12 16:25:49,441 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca07865c4/747793851eb3434b89e69233e864dc6e/FLAG1489405c4 [2022-07-12 16:25:50,068 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 16:25:50,068 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2022-07-12 16:25:50,106 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca07865c4/747793851eb3434b89e69233e864dc6e/FLAG1489405c4 [2022-07-12 16:25:50,218 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca07865c4/747793851eb3434b89e69233e864dc6e [2022-07-12 16:25:50,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 16:25:50,221 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 16:25:50,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 16:25:50,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 16:25:50,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 16:25:50,225 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:25:50" (1/1) ... [2022-07-12 16:25:50,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58b754fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:25:50, skipping insertion in model container [2022-07-12 16:25:50,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:25:50" (1/1) ... [2022-07-12 16:25:50,230 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 16:25:50,341 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 16:25:52,080 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375187,375200] [2022-07-12 16:25:52,082 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375356,375369] [2022-07-12 16:25:52,083 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375523,375536] [2022-07-12 16:25:52,083 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375691,375704] [2022-07-12 16:25:52,099 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:25:52,142 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 16:25:52,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 16:25:52,426 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375187,375200] [2022-07-12 16:25:52,427 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375356,375369] [2022-07-12 16:25:52,427 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375523,375536] [2022-07-12 16:25:52,428 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375691,375704] [2022-07-12 16:25:52,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:25:52,450 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 16:25:52,714 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375187,375200] [2022-07-12 16:25:52,714 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375356,375369] [2022-07-12 16:25:52,715 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375523,375536] [2022-07-12 16:25:52,715 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375691,375704] [2022-07-12 16:25:52,718 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:25:52,867 INFO L208 MainTranslator]: Completed translation [2022-07-12 16:25:52,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:25:52 WrapperNode [2022-07-12 16:25:52,868 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 16:25:52,869 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 16:25:52,869 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 16:25:52,869 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 16:25:52,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:25:52" (1/1) ... [2022-07-12 16:25:52,965 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:25:52" (1/1) ... [2022-07-12 16:25:53,119 INFO L137 Inliner]: procedures = 465, calls = 2315, calls flagged for inlining = 231, calls inlined = 218, statements flattened = 6208 [2022-07-12 16:25:53,120 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 16:25:53,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 16:25:53,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 16:25:53,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 16:25:53,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:25:52" (1/1) ... [2022-07-12 16:25:53,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:25:52" (1/1) ... [2022-07-12 16:25:53,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:25:52" (1/1) ... [2022-07-12 16:25:53,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:25:52" (1/1) ... [2022-07-12 16:25:53,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:25:52" (1/1) ... [2022-07-12 16:25:53,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:25:52" (1/1) ... [2022-07-12 16:25:53,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:25:52" (1/1) ... [2022-07-12 16:25:53,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 16:25:53,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 16:25:53,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 16:25:53,325 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 16:25:53,325 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:25:52" (1/1) ... [2022-07-12 16:25:53,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 16:25:53,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 16:25:53,345 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) [2022-07-12 16:25:53,362 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 [2022-07-12 16:25:53,369 INFO L130 BoogieDeclarations]: Found specification of procedure softing_reset_chip [2022-07-12 16:25:53,369 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_reset_chip [2022-07-12 16:25:53,369 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-07-12 16:25:53,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_spin_of_softing [2022-07-12 16:25:53,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_spin_of_softing [2022-07-12 16:25:53,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 16:25:53,370 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 16:25:53,370 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-12 16:25:53,370 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-12 16:25:53,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 16:25:53,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 16:25:53,370 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-12 16:25:53,370 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-12 16:25:53,371 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2022-07-12 16:25:53,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2022-07-12 16:25:53,371 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-07-12 16:25:53,371 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-07-12 16:25:53,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-12 16:25:53,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-12 16:25:53,371 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2022-07-12 16:25:53,371 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2022-07-12 16:25:53,372 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-07-12 16:25:53,372 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-07-12 16:25:53,372 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-07-12 16:25:53,372 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-07-12 16:25:53,372 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2022-07-12 16:25:53,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2022-07-12 16:25:53,372 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-12 16:25:53,372 INFO L130 BoogieDeclarations]: Found specification of procedure softing_fct_cmd [2022-07-12 16:25:53,373 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_fct_cmd [2022-07-12 16:25:53,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-12 16:25:53,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-12 16:25:53,373 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-12 16:25:53,373 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-12 16:25:53,373 INFO L130 BoogieDeclarations]: Found specification of procedure canif_is_active [2022-07-12 16:25:53,373 INFO L138 BoogieDeclarations]: Found implementation of procedure canif_is_active [2022-07-12 16:25:53,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-12 16:25:53,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-12 16:25:53,374 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2022-07-12 16:25:53,374 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2022-07-12 16:25:53,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 16:25:53,374 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-12 16:25:53,374 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-12 16:25:53,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-12 16:25:53,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 16:25:53,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 16:25:53,375 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_open [2022-07-12 16:25:53,375 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_open [2022-07-12 16:25:53,375 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-12 16:25:53,375 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-12 16:25:53,375 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~C_INT [2022-07-12 16:25:53,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~C_INT [2022-07-12 16:25:53,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-12 16:25:53,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-12 16:25:53,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 16:25:53,376 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 16:25:53,376 INFO L130 BoogieDeclarations]: Found specification of procedure open_candev [2022-07-12 16:25:53,376 INFO L138 BoogieDeclarations]: Found implementation of procedure open_candev [2022-07-12 16:25:53,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-12 16:25:53,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-12 16:25:53,376 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_rx [2022-07-12 16:25:53,376 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_rx [2022-07-12 16:25:53,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-12 16:25:53,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-12 16:25:53,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 16:25:53,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-12 16:25:53,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-12 16:25:53,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-12 16:25:53,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-12 16:25:53,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-07-12 16:25:53,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-07-12 16:25:53,378 INFO L130 BoogieDeclarations]: Found specification of procedure softing_card_shutdown [2022-07-12 16:25:53,378 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_card_shutdown [2022-07-12 16:25:53,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 16:25:53,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-12 16:25:53,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-12 16:25:53,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 16:25:53,378 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-12 16:25:53,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-12 16:25:53,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-12 16:25:53,379 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-07-12 16:25:53,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-07-12 16:25:53,379 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 16:25:53,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 16:25:53,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-12 16:25:53,379 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_set [2022-07-12 16:25:53,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_set [2022-07-12 16:25:53,380 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_cleanup [2022-07-12 16:25:53,380 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_cleanup [2022-07-12 16:25:53,380 INFO L130 BoogieDeclarations]: Found specification of procedure softing_startstop [2022-07-12 16:25:53,380 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_startstop [2022-07-12 16:25:53,380 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-07-12 16:25:53,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-07-12 16:25:53,380 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_add_us [2022-07-12 16:25:53,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_add_us [2022-07-12 16:25:53,380 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2022-07-12 16:25:53,381 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2022-07-12 16:25:53,381 INFO L130 BoogieDeclarations]: Found specification of procedure softing_bootloader_command [2022-07-12 16:25:53,381 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_bootloader_command [2022-07-12 16:25:53,381 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2022-07-12 16:25:53,381 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2022-07-12 16:25:53,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_62 [2022-07-12 16:25:53,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_62 [2022-07-12 16:25:53,381 INFO L130 BoogieDeclarations]: Found specification of procedure softing_raw2ktime [2022-07-12 16:25:53,382 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_raw2ktime [2022-07-12 16:25:53,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-12 16:25:53,382 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2022-07-12 16:25:53,382 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2022-07-12 16:25:53,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 16:25:53,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 16:25:53,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 16:25:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure store_output [2022-07-12 16:25:53,383 INFO L138 BoogieDeclarations]: Found implementation of procedure store_output [2022-07-12 16:25:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 16:25:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 16:25:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 16:25:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-12 16:25:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 16:25:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure softing_pdev_probe [2022-07-12 16:25:53,384 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_pdev_probe [2022-07-12 16:25:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 16:25:53,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 16:25:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_stop [2022-07-12 16:25:53,384 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_stop [2022-07-12 16:25:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2022-07-12 16:25:53,384 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2022-07-12 16:25:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-12 16:25:53,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-12 16:25:53,385 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-12 16:25:53,385 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-12 16:25:53,385 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-07-12 16:25:53,385 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-07-12 16:25:53,385 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-12 16:25:53,385 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-12 16:25:53,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 16:25:53,385 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 16:25:53,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_softing_driver_exit_21_2 [2022-07-12 16:25:53,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_softing_driver_exit_21_2 [2022-07-12 16:25:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-12 16:25:53,386 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-12 16:25:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure softing_set_reset_dpram [2022-07-12 16:25:53,386 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_set_reset_dpram [2022-07-12 16:25:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 16:25:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-12 16:25:53,386 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-12 16:25:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 16:25:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-07-12 16:25:53,387 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-07-12 16:25:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 16:25:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 16:25:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 16:25:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 16:25:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 16:25:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-12 16:25:53,387 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-12 16:25:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-12 16:25:53,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-12 16:25:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-07-12 16:25:53,388 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-07-12 16:25:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-07-12 16:25:53,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-07-12 16:25:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure fw_parse [2022-07-12 16:25:53,388 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_parse [2022-07-12 16:25:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-12 16:25:53,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-12 16:25:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-07-12 16:25:53,389 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-07-12 16:25:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-12 16:25:53,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-12 16:25:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 16:25:53,389 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 16:25:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~C_ULONG~TO~C_LONG [2022-07-12 16:25:53,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~C_ULONG~TO~C_LONG [2022-07-12 16:25:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-12 16:25:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-12 16:25:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 16:25:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-12 16:25:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 16:25:53,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 16:25:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_61 [2022-07-12 16:25:53,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_61 [2022-07-12 16:25:53,391 INFO L130 BoogieDeclarations]: Found specification of procedure _softing_fct_cmd [2022-07-12 16:25:53,391 INFO L138 BoogieDeclarations]: Found implementation of procedure _softing_fct_cmd [2022-07-12 16:25:53,391 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2022-07-12 16:25:53,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2022-07-12 16:25:53,391 INFO L130 BoogieDeclarations]: Found specification of procedure softing_error_reporting [2022-07-12 16:25:53,391 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_error_reporting [2022-07-12 16:25:53,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-12 16:25:53,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-12 16:25:53,391 INFO L130 BoogieDeclarations]: Found specification of procedure softing_pdev_remove [2022-07-12 16:25:53,392 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_pdev_remove [2022-07-12 16:25:53,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_spin_of_softing [2022-07-12 16:25:53,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_spin_of_softing [2022-07-12 16:25:53,392 INFO L130 BoogieDeclarations]: Found specification of procedure softing_enable_irq [2022-07-12 16:25:53,392 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_enable_irq [2022-07-12 16:25:53,392 INFO L130 BoogieDeclarations]: Found specification of procedure softing_load_fw [2022-07-12 16:25:53,392 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_load_fw [2022-07-12 16:25:53,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-12 16:25:53,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-12 16:25:54,058 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 16:25:54,060 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 16:26:03,001 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 16:26:28,786 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-12 16:26:28,917 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 16:26:28,952 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 16:26:28,953 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 16:26:28,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 04:26:28 BoogieIcfgContainer [2022-07-12 16:26:28,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 16:26:28,973 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 16:26:28,973 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 16:26:28,975 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 16:26:28,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 04:25:50" (1/3) ... [2022-07-12 16:26:28,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5422dfd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 04:26:28, skipping insertion in model container [2022-07-12 16:26:28,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:25:52" (2/3) ... [2022-07-12 16:26:28,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5422dfd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 04:26:28, skipping insertion in model container [2022-07-12 16:26:28,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 04:26:28" (3/3) ... [2022-07-12 16:26:28,978 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2022-07-12 16:26:29,003 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 16:26:29,003 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-12 16:26:29,075 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 16:26:29,084 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@34fdd223, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3f224096 [2022-07-12 16:26:29,084 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-12 16:26:29,094 INFO L276 IsEmpty]: Start isEmpty. Operand has 2170 states, 1530 states have (on average 1.3091503267973856) internal successors, (2003), 1544 states have internal predecessors, (2003), 555 states have call successors, (555), 83 states have call predecessors, (555), 82 states have return successors, (547), 547 states have call predecessors, (547), 547 states have call successors, (547) [2022-07-12 16:26:29,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2022-07-12 16:26:29,126 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:26:29,128 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:26:29,128 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:26:29,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:26:29,133 INFO L85 PathProgramCache]: Analyzing trace with hash 820136742, now seen corresponding path program 1 times [2022-07-12 16:26:29,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:26:29,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [401096817] [2022-07-12 16:26:29,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:26:29,147 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:26:29,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:26:29,159 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) [2022-07-12 16:26:29,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 16:26:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:30,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 1946 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:26:30,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:26:30,818 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 6669 trivial. 0 not checked. [2022-07-12 16:26:30,818 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:26:30,819 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:26:30,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [401096817] [2022-07-12 16:26:30,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [401096817] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:26:30,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:26:30,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:26:30,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435225943] [2022-07-12 16:26:30,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:26:30,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:26:30,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:26:30,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:26:30,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:26:30,849 INFO L87 Difference]: Start difference. First operand has 2170 states, 1530 states have (on average 1.3091503267973856) internal successors, (2003), 1544 states have internal predecessors, (2003), 555 states have call successors, (555), 83 states have call predecessors, (555), 82 states have return successors, (547), 547 states have call predecessors, (547), 547 states have call successors, (547) Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-07-12 16:26:31,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:26:31,321 INFO L93 Difference]: Finished difference Result 6170 states and 9026 transitions. [2022-07-12 16:26:31,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:26:31,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 457 [2022-07-12 16:26:31,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:26:31,354 INFO L225 Difference]: With dead ends: 6170 [2022-07-12 16:26:31,354 INFO L226 Difference]: Without dead ends: 4066 [2022-07-12 16:26:31,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:26:31,370 INFO L413 NwaCegarLoop]: 3614 mSDtfsCounter, 2729 mSDsluCounter, 3120 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2729 SdHoareTripleChecker+Valid, 6734 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 16:26:31,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2729 Valid, 6734 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 16:26:31,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4066 states. [2022-07-12 16:26:31,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4066 to 4040. [2022-07-12 16:26:31,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4040 states, 2875 states have (on average 1.304695652173913) internal successors, (3751), 2903 states have internal predecessors, (3751), 1003 states have call successors, (1003), 160 states have call predecessors, (1003), 159 states have return successors, (1044), 995 states have call predecessors, (1044), 999 states have call successors, (1044) [2022-07-12 16:26:31,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4040 states to 4040 states and 5798 transitions. [2022-07-12 16:26:31,596 INFO L78 Accepts]: Start accepts. Automaton has 4040 states and 5798 transitions. Word has length 457 [2022-07-12 16:26:31,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:26:31,600 INFO L495 AbstractCegarLoop]: Abstraction has 4040 states and 5798 transitions. [2022-07-12 16:26:31,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-07-12 16:26:31,600 INFO L276 IsEmpty]: Start isEmpty. Operand 4040 states and 5798 transitions. [2022-07-12 16:26:31,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2022-07-12 16:26:31,608 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:26:31,608 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:26:31,655 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-12 16:26:31,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:26:31,836 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:26:31,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:26:31,837 INFO L85 PathProgramCache]: Analyzing trace with hash -113970776, now seen corresponding path program 1 times [2022-07-12 16:26:31,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:26:31,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1918528516] [2022-07-12 16:26:31,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:26:31,839 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:26:31,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:26:31,856 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) [2022-07-12 16:26:31,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 16:26:33,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:33,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 1924 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:26:33,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:26:33,505 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 6669 trivial. 0 not checked. [2022-07-12 16:26:33,505 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:26:33,505 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:26:33,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1918528516] [2022-07-12 16:26:33,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1918528516] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:26:33,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:26:33,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:26:33,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477690033] [2022-07-12 16:26:33,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:26:33,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:26:33,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:26:33,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:26:33,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:26:33,507 INFO L87 Difference]: Start difference. First operand 4040 states and 5798 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (44), 3 states have call predecessors, (44), 3 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-07-12 16:26:33,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:26:33,969 INFO L93 Difference]: Finished difference Result 11787 states and 16935 transitions. [2022-07-12 16:26:33,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:26:33,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (44), 3 states have call predecessors, (44), 3 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 457 [2022-07-12 16:26:33,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:26:34,004 INFO L225 Difference]: With dead ends: 11787 [2022-07-12 16:26:34,004 INFO L226 Difference]: Without dead ends: 7830 [2022-07-12 16:26:34,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:26:34,021 INFO L413 NwaCegarLoop]: 3556 mSDtfsCounter, 2836 mSDsluCounter, 3016 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2836 SdHoareTripleChecker+Valid, 6572 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 16:26:34,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2836 Valid, 6572 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 16:26:34,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7830 states. [2022-07-12 16:26:34,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7830 to 7826. [2022-07-12 16:26:34,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7826 states, 5590 states have (on average 1.309660107334526) internal successors, (7321), 5638 states have internal predecessors, (7321), 1918 states have call successors, (1918), 316 states have call predecessors, (1918), 315 states have return successors, (2004), 1909 states have call predecessors, (2004), 1914 states have call successors, (2004) [2022-07-12 16:26:34,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7826 states to 7826 states and 11243 transitions. [2022-07-12 16:26:34,219 INFO L78 Accepts]: Start accepts. Automaton has 7826 states and 11243 transitions. Word has length 457 [2022-07-12 16:26:34,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:26:34,220 INFO L495 AbstractCegarLoop]: Abstraction has 7826 states and 11243 transitions. [2022-07-12 16:26:34,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (44), 3 states have call predecessors, (44), 3 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-07-12 16:26:34,220 INFO L276 IsEmpty]: Start isEmpty. Operand 7826 states and 11243 transitions. [2022-07-12 16:26:34,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2022-07-12 16:26:34,226 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:26:34,227 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:26:34,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 16:26:34,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:26:34,450 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)] === [2022-07-12 16:26:34,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:26:34,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1620499840, now seen corresponding path program 1 times [2022-07-12 16:26:34,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:26:34,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1795445087] [2022-07-12 16:26:34,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:26:34,452 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:26:34,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:26:34,453 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) [2022-07-12 16:26:34,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 16:26:35,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:35,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 2021 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:26:35,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:26:36,026 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 6669 trivial. 0 not checked. [2022-07-12 16:26:36,026 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:26:36,026 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:26:36,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1795445087] [2022-07-12 16:26:36,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1795445087] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:26:36,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:26:36,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:26:36,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786029510] [2022-07-12 16:26:36,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:26:36,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:26:36,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:26:36,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:26:36,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:26:36,029 INFO L87 Difference]: Start difference. First operand 7826 states and 11243 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (44), 3 states have call predecessors, (44), 3 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-07-12 16:26:36,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:26:36,729 INFO L93 Difference]: Finished difference Result 22844 states and 33121 transitions. [2022-07-12 16:26:36,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:26:36,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (44), 3 states have call predecessors, (44), 3 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 466 [2022-07-12 16:26:36,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:26:36,845 INFO L225 Difference]: With dead ends: 22844 [2022-07-12 16:26:36,845 INFO L226 Difference]: Without dead ends: 15101 [2022-07-12 16:26:36,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 464 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:26:36,888 INFO L413 NwaCegarLoop]: 3589 mSDtfsCounter, 2799 mSDsluCounter, 3059 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2799 SdHoareTripleChecker+Valid, 6648 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 16:26:36,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2799 Valid, 6648 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 16:26:36,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15101 states. [2022-07-12 16:26:37,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15101 to 15068. [2022-07-12 16:26:37,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15068 states, 10754 states have (on average 1.3099311883950158) internal successors, (14087), 10856 states have internal predecessors, (14087), 3690 states have call successors, (3690), 626 states have call predecessors, (3690), 621 states have return successors, (4162), 3657 states have call predecessors, (4162), 3686 states have call successors, (4162) [2022-07-12 16:26:37,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15068 states to 15068 states and 21939 transitions. [2022-07-12 16:26:37,550 INFO L78 Accepts]: Start accepts. Automaton has 15068 states and 21939 transitions. Word has length 466 [2022-07-12 16:26:37,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:26:37,550 INFO L495 AbstractCegarLoop]: Abstraction has 15068 states and 21939 transitions. [2022-07-12 16:26:37,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (44), 3 states have call predecessors, (44), 3 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-07-12 16:26:37,551 INFO L276 IsEmpty]: Start isEmpty. Operand 15068 states and 21939 transitions. [2022-07-12 16:26:37,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2022-07-12 16:26:37,560 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:26:37,560 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:26:37,604 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-12 16:26:37,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:26:37,776 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)] === [2022-07-12 16:26:37,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:26:37,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1698188113, now seen corresponding path program 1 times [2022-07-12 16:26:37,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:26:37,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1540034530] [2022-07-12 16:26:37,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:26:37,778 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:26:37,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:26:37,796 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) [2022-07-12 16:26:37,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 16:26:39,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:39,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 2141 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:26:39,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:26:39,547 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 6669 trivial. 0 not checked. [2022-07-12 16:26:39,547 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:26:39,547 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:26:39,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1540034530] [2022-07-12 16:26:39,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1540034530] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:26:39,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:26:39,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:26:39,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776690632] [2022-07-12 16:26:39,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:26:39,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:26:39,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:26:39,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:26:39,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:26:39,549 INFO L87 Difference]: Start difference. First operand 15068 states and 21939 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-07-12 16:26:40,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:26:40,908 INFO L93 Difference]: Finished difference Result 43418 states and 63015 transitions. [2022-07-12 16:26:40,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:26:40,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 486 [2022-07-12 16:26:40,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:26:41,027 INFO L225 Difference]: With dead ends: 43418 [2022-07-12 16:26:41,027 INFO L226 Difference]: Without dead ends: 28433 [2022-07-12 16:26:41,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 484 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:26:41,094 INFO L413 NwaCegarLoop]: 4082 mSDtfsCounter, 2642 mSDsluCounter, 2975 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2642 SdHoareTripleChecker+Valid, 7057 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-12 16:26:41,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2642 Valid, 7057 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-12 16:26:41,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28433 states. [2022-07-12 16:26:41,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28433 to 28392. [2022-07-12 16:26:41,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28392 states, 20158 states have (on average 1.3054370473261236) internal successors, (26315), 20376 states have internal predecessors, (26315), 7022 states have call successors, (7022), 1218 states have call predecessors, (7022), 1209 states have return successors, (7580), 6941 states have call predecessors, (7580), 7018 states have call successors, (7580) [2022-07-12 16:26:42,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28392 states to 28392 states and 40917 transitions. [2022-07-12 16:26:42,071 INFO L78 Accepts]: Start accepts. Automaton has 28392 states and 40917 transitions. Word has length 486 [2022-07-12 16:26:42,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:26:42,073 INFO L495 AbstractCegarLoop]: Abstraction has 28392 states and 40917 transitions. [2022-07-12 16:26:42,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-07-12 16:26:42,073 INFO L276 IsEmpty]: Start isEmpty. Operand 28392 states and 40917 transitions. [2022-07-12 16:26:42,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-07-12 16:26:42,080 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:26:42,080 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:26:42,117 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-07-12 16:26:42,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:26:42,304 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)] === [2022-07-12 16:26:42,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:26:42,305 INFO L85 PathProgramCache]: Analyzing trace with hash -78835710, now seen corresponding path program 1 times [2022-07-12 16:26:42,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:26:42,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [487979690] [2022-07-12 16:26:42,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:26:42,307 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:26:42,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:26:42,308 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) [2022-07-12 16:26:42,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-12 16:26:43,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:43,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 2100 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:26:43,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:26:43,888 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 6669 trivial. 0 not checked. [2022-07-12 16:26:43,889 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:26:43,889 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:26:43,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [487979690] [2022-07-12 16:26:43,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [487979690] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:26:43,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:26:43,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:26:43,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962411596] [2022-07-12 16:26:43,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:26:43,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:26:43,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:26:43,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:26:43,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:26:43,890 INFO L87 Difference]: Start difference. First operand 28392 states and 40917 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2022-07-12 16:26:45,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:26:45,108 INFO L93 Difference]: Finished difference Result 54939 states and 79146 transitions. [2022-07-12 16:26:45,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:26:45,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 484 [2022-07-12 16:26:45,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:26:45,230 INFO L225 Difference]: With dead ends: 54939 [2022-07-12 16:26:45,231 INFO L226 Difference]: Without dead ends: 26630 [2022-07-12 16:26:45,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 482 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:26:45,318 INFO L413 NwaCegarLoop]: 4915 mSDtfsCounter, 2843 mSDsluCounter, 3016 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2843 SdHoareTripleChecker+Valid, 7931 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 16:26:45,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2843 Valid, 7931 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 16:26:45,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26630 states. [2022-07-12 16:26:46,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26630 to 26591. [2022-07-12 16:26:46,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26591 states, 19016 states have (on average 1.3028502313840975) internal successors, (24775), 19229 states have internal predecessors, (24775), 6456 states have call successors, (6456), 1131 states have call predecessors, (6456), 1116 states have return successors, (6965), 6352 states have call predecessors, (6965), 6452 states have call successors, (6965) [2022-07-12 16:26:46,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26591 states to 26591 states and 38196 transitions. [2022-07-12 16:26:46,167 INFO L78 Accepts]: Start accepts. Automaton has 26591 states and 38196 transitions. Word has length 484 [2022-07-12 16:26:46,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:26:46,168 INFO L495 AbstractCegarLoop]: Abstraction has 26591 states and 38196 transitions. [2022-07-12 16:26:46,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2022-07-12 16:26:46,168 INFO L276 IsEmpty]: Start isEmpty. Operand 26591 states and 38196 transitions. [2022-07-12 16:26:46,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2022-07-12 16:26:46,176 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:26:46,176 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 39, 39, 39, 39, 39, 39, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:26:46,209 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-07-12 16:26:46,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:26:46,395 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:26:46,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:26:46,396 INFO L85 PathProgramCache]: Analyzing trace with hash -741269785, now seen corresponding path program 1 times [2022-07-12 16:26:46,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:26:46,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [984407627] [2022-07-12 16:26:46,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:26:46,398 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:26:46,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:26:46,412 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) [2022-07-12 16:26:46,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-12 16:26:47,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:47,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 2037 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:26:47,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:26:48,148 INFO L134 CoverageAnalysis]: Checked inductivity of 7189 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 7041 trivial. 0 not checked. [2022-07-12 16:26:48,148 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:26:48,148 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:26:48,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [984407627] [2022-07-12 16:26:48,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [984407627] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:26:48,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:26:48,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:26:48,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849967102] [2022-07-12 16:26:48,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:26:48,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:26:48,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:26:48,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:26:48,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:26:48,150 INFO L87 Difference]: Start difference. First operand 26591 states and 38196 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-07-12 16:26:49,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:26:49,296 INFO L93 Difference]: Finished difference Result 77226 states and 111141 transitions. [2022-07-12 16:26:49,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:26:49,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 513 [2022-07-12 16:26:49,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:26:49,571 INFO L225 Difference]: With dead ends: 77226 [2022-07-12 16:26:49,572 INFO L226 Difference]: Without dead ends: 51254 [2022-07-12 16:26:49,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:26:49,654 INFO L413 NwaCegarLoop]: 5524 mSDtfsCounter, 2809 mSDsluCounter, 3042 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2809 SdHoareTripleChecker+Valid, 8566 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 16:26:49,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2809 Valid, 8566 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 16:26:49,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51254 states. [2022-07-12 16:26:51,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51254 to 51250. [2022-07-12 16:26:51,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51250 states, 36632 states have (on average 1.3062076872679624) internal successors, (47849), 37000 states have internal predecessors, (47849), 12450 states have call successors, (12450), 2186 states have call predecessors, (12450), 2165 states have return successors, (13472), 12307 states have call predecessors, (13472), 12446 states have call successors, (13472) [2022-07-12 16:26:51,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51250 states to 51250 states and 73771 transitions. [2022-07-12 16:26:51,379 INFO L78 Accepts]: Start accepts. Automaton has 51250 states and 73771 transitions. Word has length 513 [2022-07-12 16:26:51,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:26:51,380 INFO L495 AbstractCegarLoop]: Abstraction has 51250 states and 73771 transitions. [2022-07-12 16:26:51,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-07-12 16:26:51,381 INFO L276 IsEmpty]: Start isEmpty. Operand 51250 states and 73771 transitions. [2022-07-12 16:26:51,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2022-07-12 16:26:51,386 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:26:51,386 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 39, 39, 39, 39, 39, 39, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:26:51,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-12 16:26:51,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:26:51,600 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)] === [2022-07-12 16:26:51,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:26:51,600 INFO L85 PathProgramCache]: Analyzing trace with hash -600721175, now seen corresponding path program 1 times [2022-07-12 16:26:51,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:26:51,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1248844566] [2022-07-12 16:26:51,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:26:51,602 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:26:51,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:26:51,603 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) [2022-07-12 16:26:51,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-12 16:26:53,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:26:53,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 2037 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 16:26:53,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:26:59,495 INFO L134 CoverageAnalysis]: Checked inductivity of 7189 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7189 trivial. 0 not checked. [2022-07-12 16:26:59,495 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:26:59,495 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:26:59,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1248844566] [2022-07-12 16:26:59,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1248844566] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:26:59,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:26:59,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 16:26:59,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18772626] [2022-07-12 16:26:59,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:26:59,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 16:26:59,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:26:59,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 16:26:59,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 16:26:59,497 INFO L87 Difference]: Start difference. First operand 51250 states and 73771 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 3 states have internal predecessors, (84), 1 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2022-07-12 16:27:00,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:27:00,626 INFO L93 Difference]: Finished difference Result 51256 states and 73776 transitions. [2022-07-12 16:27:00,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 16:27:00,626 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 3 states have internal predecessors, (84), 1 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 513 [2022-07-12 16:27:00,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:27:00,809 INFO L225 Difference]: With dead ends: 51256 [2022-07-12 16:27:00,809 INFO L226 Difference]: Without dead ends: 51254 [2022-07-12 16:27:00,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 509 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 16:27:00,842 INFO L413 NwaCegarLoop]: 3066 mSDtfsCounter, 2898 mSDsluCounter, 6120 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2899 SdHoareTripleChecker+Valid, 9186 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 16:27:00,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2899 Valid, 9186 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 16:27:00,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51254 states. [2022-07-12 16:27:02,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51254 to 51254. [2022-07-12 16:27:02,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51254 states, 36635 states have (on average 1.3061826122560394) internal successors, (47852), 37003 states have internal predecessors, (47852), 12450 states have call successors, (12450), 2187 states have call predecessors, (12450), 2166 states have return successors, (13472), 12307 states have call predecessors, (13472), 12446 states have call successors, (13472) [2022-07-12 16:27:02,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51254 states to 51254 states and 73774 transitions. [2022-07-12 16:27:02,491 INFO L78 Accepts]: Start accepts. Automaton has 51254 states and 73774 transitions. Word has length 513 [2022-07-12 16:27:02,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:27:02,494 INFO L495 AbstractCegarLoop]: Abstraction has 51254 states and 73774 transitions. [2022-07-12 16:27:02,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 3 states have internal predecessors, (84), 1 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2022-07-12 16:27:02,494 INFO L276 IsEmpty]: Start isEmpty. Operand 51254 states and 73774 transitions. [2022-07-12 16:27:02,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2022-07-12 16:27:02,500 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:27:02,500 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 39, 39, 39, 39, 39, 39, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:27:02,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-12 16:27:02,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:27:02,715 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)] === [2022-07-12 16:27:02,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:27:02,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1571622814, now seen corresponding path program 1 times [2022-07-12 16:27:02,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:27:02,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [880874951] [2022-07-12 16:27:02,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:27:02,717 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:27:02,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:27:02,718 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) [2022-07-12 16:27:02,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-12 16:27:04,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:04,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 2044 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 16:27:04,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:27:10,322 INFO L134 CoverageAnalysis]: Checked inductivity of 7191 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7189 trivial. 0 not checked. [2022-07-12 16:27:10,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 16:27:12,333 INFO L134 CoverageAnalysis]: Checked inductivity of 7191 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7189 trivial. 0 not checked. [2022-07-12 16:27:12,333 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:27:12,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [880874951] [2022-07-12 16:27:12,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [880874951] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 16:27:12,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 16:27:12,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 16:27:12,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113060006] [2022-07-12 16:27:12,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:27:12,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 16:27:12,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:27:12,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 16:27:12,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 16:27:12,335 INFO L87 Difference]: Start difference. First operand 51254 states and 73774 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-07-12 16:27:13,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:27:13,437 INFO L93 Difference]: Finished difference Result 51260 states and 73779 transitions. [2022-07-12 16:27:13,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 16:27:13,438 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 518 [2022-07-12 16:27:13,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:27:13,725 INFO L225 Difference]: With dead ends: 51260 [2022-07-12 16:27:13,725 INFO L226 Difference]: Without dead ends: 51258 [2022-07-12 16:27:13,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1037 GetRequests, 1029 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 16:27:13,747 INFO L413 NwaCegarLoop]: 3069 mSDtfsCounter, 2946 mSDsluCounter, 6119 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2956 SdHoareTripleChecker+Valid, 9188 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 16:27:13,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2956 Valid, 9188 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 16:27:13,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51258 states. [2022-07-12 16:27:15,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51258 to 51258. [2022-07-12 16:27:15,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51258 states, 36638 states have (on average 1.3061575413505104) internal successors, (47855), 37006 states have internal predecessors, (47855), 12450 states have call successors, (12450), 2188 states have call predecessors, (12450), 2167 states have return successors, (13472), 12307 states have call predecessors, (13472), 12446 states have call successors, (13472) [2022-07-12 16:27:15,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51258 states to 51258 states and 73777 transitions. [2022-07-12 16:27:15,287 INFO L78 Accepts]: Start accepts. Automaton has 51258 states and 73777 transitions. Word has length 518 [2022-07-12 16:27:15,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:27:15,287 INFO L495 AbstractCegarLoop]: Abstraction has 51258 states and 73777 transitions. [2022-07-12 16:27:15,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-07-12 16:27:15,288 INFO L276 IsEmpty]: Start isEmpty. Operand 51258 states and 73777 transitions. [2022-07-12 16:27:15,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 524 [2022-07-12 16:27:15,295 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:27:15,295 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 39, 39, 39, 39, 39, 39, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:27:15,329 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-07-12 16:27:15,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:27:15,512 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)] === [2022-07-12 16:27:15,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:27:15,512 INFO L85 PathProgramCache]: Analyzing trace with hash 838046793, now seen corresponding path program 1 times [2022-07-12 16:27:15,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:27:15,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1388878793] [2022-07-12 16:27:15,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:27:15,514 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:27:15,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:27:15,528 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) [2022-07-12 16:27:15,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-12 16:27:16,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:16,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 2051 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 16:27:16,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:27:23,285 INFO L134 CoverageAnalysis]: Checked inductivity of 7197 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7193 trivial. 0 not checked. [2022-07-12 16:27:23,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 16:27:25,325 INFO L134 CoverageAnalysis]: Checked inductivity of 7197 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7193 trivial. 0 not checked. [2022-07-12 16:27:25,325 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:27:25,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1388878793] [2022-07-12 16:27:25,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1388878793] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 16:27:25,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 16:27:25,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 16:27:25,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400694412] [2022-07-12 16:27:25,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:27:25,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 16:27:25,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:27:25,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 16:27:25,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 16:27:25,327 INFO L87 Difference]: Start difference. First operand 51258 states and 73777 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-07-12 16:27:26,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:27:26,550 INFO L93 Difference]: Finished difference Result 51264 states and 73782 transitions. [2022-07-12 16:27:26,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 16:27:26,551 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 523 [2022-07-12 16:27:26,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:27:26,770 INFO L225 Difference]: With dead ends: 51264 [2022-07-12 16:27:26,771 INFO L226 Difference]: Without dead ends: 51262 [2022-07-12 16:27:26,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1047 GetRequests, 1039 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 16:27:26,789 INFO L413 NwaCegarLoop]: 3069 mSDtfsCounter, 2946 mSDsluCounter, 6119 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2955 SdHoareTripleChecker+Valid, 9188 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 16:27:26,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2955 Valid, 9188 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 16:27:26,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51262 states. [2022-07-12 16:27:28,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51262 to 51262. [2022-07-12 16:27:28,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51262 states, 36641 states have (on average 1.306132474550367) internal successors, (47858), 37009 states have internal predecessors, (47858), 12450 states have call successors, (12450), 2189 states have call predecessors, (12450), 2168 states have return successors, (13472), 12307 states have call predecessors, (13472), 12446 states have call successors, (13472) [2022-07-12 16:27:28,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51262 states to 51262 states and 73780 transitions. [2022-07-12 16:27:28,237 INFO L78 Accepts]: Start accepts. Automaton has 51262 states and 73780 transitions. Word has length 523 [2022-07-12 16:27:28,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:27:28,237 INFO L495 AbstractCegarLoop]: Abstraction has 51262 states and 73780 transitions. [2022-07-12 16:27:28,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-07-12 16:27:28,238 INFO L276 IsEmpty]: Start isEmpty. Operand 51262 states and 73780 transitions. [2022-07-12 16:27:28,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 541 [2022-07-12 16:27:28,247 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:27:28,247 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 39, 39, 39, 39, 39, 39, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:27:28,280 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-07-12 16:27:28,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:27:28,464 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)] === [2022-07-12 16:27:28,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:27:28,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1832518006, now seen corresponding path program 1 times [2022-07-12 16:27:28,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:27:28,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1459303719] [2022-07-12 16:27:28,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:27:28,466 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:27:28,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:27:28,467 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) [2022-07-12 16:27:28,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-12 16:27:29,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:29,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 2106 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:27:29,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:27:30,029 INFO L134 CoverageAnalysis]: Checked inductivity of 7219 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 7063 trivial. 0 not checked. [2022-07-12 16:27:30,030 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:27:30,030 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:27:30,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1459303719] [2022-07-12 16:27:30,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1459303719] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:27:30,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:27:30,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:27:30,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783681515] [2022-07-12 16:27:30,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:27:30,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:27:30,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:27:30,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:27:30,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:27:30,031 INFO L87 Difference]: Start difference. First operand 51262 states and 73780 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2022-07-12 16:27:32,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:27:32,287 INFO L93 Difference]: Finished difference Result 126614 states and 182378 transitions. [2022-07-12 16:27:32,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:27:32,288 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) Word has length 540 [2022-07-12 16:27:32,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:27:32,555 INFO L225 Difference]: With dead ends: 126614 [2022-07-12 16:27:32,555 INFO L226 Difference]: Without dead ends: 75971 [2022-07-12 16:27:32,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 539 GetRequests, 538 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:27:32,706 INFO L413 NwaCegarLoop]: 5890 mSDtfsCounter, 2839 mSDsluCounter, 3044 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2839 SdHoareTripleChecker+Valid, 8934 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 16:27:32,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2839 Valid, 8934 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 16:27:32,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75971 states. [2022-07-12 16:27:34,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75971 to 75937. [2022-07-12 16:27:34,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75937 states, 54273 states have (on average 1.3072430121791683) internal successors, (70948), 54796 states have internal predecessors, (70948), 18444 states have call successors, (18444), 3244 states have call predecessors, (18444), 3217 states have return successors, (19979), 18262 states have call predecessors, (19979), 18440 states have call successors, (19979) [2022-07-12 16:27:35,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75937 states to 75937 states and 109371 transitions. [2022-07-12 16:27:35,201 INFO L78 Accepts]: Start accepts. Automaton has 75937 states and 109371 transitions. Word has length 540 [2022-07-12 16:27:35,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:27:35,202 INFO L495 AbstractCegarLoop]: Abstraction has 75937 states and 109371 transitions. [2022-07-12 16:27:35,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2022-07-12 16:27:35,202 INFO L276 IsEmpty]: Start isEmpty. Operand 75937 states and 109371 transitions. [2022-07-12 16:27:35,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2022-07-12 16:27:35,209 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:27:35,210 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 39, 39, 39, 39, 39, 39, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:27:35,240 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2022-07-12 16:27:35,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:27:35,421 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)] === [2022-07-12 16:27:35,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:27:35,422 INFO L85 PathProgramCache]: Analyzing trace with hash 378364034, now seen corresponding path program 1 times [2022-07-12 16:27:35,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:27:35,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2070504172] [2022-07-12 16:27:35,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:27:35,423 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:27:35,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:27:35,425 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) [2022-07-12 16:27:35,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-12 16:27:36,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:36,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 2058 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 16:27:36,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:27:42,976 INFO L134 CoverageAnalysis]: Checked inductivity of 7207 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7201 trivial. 0 not checked. [2022-07-12 16:27:42,976 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 16:27:44,794 INFO L134 CoverageAnalysis]: Checked inductivity of 7207 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7201 trivial. 0 not checked. [2022-07-12 16:27:44,794 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:27:44,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2070504172] [2022-07-12 16:27:44,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2070504172] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 16:27:44,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 16:27:44,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 16:27:44,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897594510] [2022-07-12 16:27:44,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:27:44,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 16:27:44,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:27:44,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 16:27:44,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 16:27:44,795 INFO L87 Difference]: Start difference. First operand 75937 states and 109371 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-07-12 16:27:46,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:27:46,754 INFO L93 Difference]: Finished difference Result 75943 states and 109376 transitions. [2022-07-12 16:27:46,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 16:27:46,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 528 [2022-07-12 16:27:46,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:27:47,111 INFO L225 Difference]: With dead ends: 75943 [2022-07-12 16:27:47,112 INFO L226 Difference]: Without dead ends: 75941 [2022-07-12 16:27:47,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1057 GetRequests, 1049 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 16:27:47,147 INFO L413 NwaCegarLoop]: 3069 mSDtfsCounter, 2946 mSDsluCounter, 6119 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2954 SdHoareTripleChecker+Valid, 9188 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 16:27:47,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2954 Valid, 9188 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 16:27:47,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75941 states. [2022-07-12 16:27:49,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75941 to 75941. [2022-07-12 16:27:49,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75941 states, 54276 states have (on average 1.3072260299211438) internal successors, (70951), 54799 states have internal predecessors, (70951), 18444 states have call successors, (18444), 3245 states have call predecessors, (18444), 3218 states have return successors, (19979), 18262 states have call predecessors, (19979), 18440 states have call successors, (19979) [2022-07-12 16:27:49,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75941 states to 75941 states and 109374 transitions. [2022-07-12 16:27:49,548 INFO L78 Accepts]: Start accepts. Automaton has 75941 states and 109374 transitions. Word has length 528 [2022-07-12 16:27:49,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:27:49,548 INFO L495 AbstractCegarLoop]: Abstraction has 75941 states and 109374 transitions. [2022-07-12 16:27:49,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-07-12 16:27:49,549 INFO L276 IsEmpty]: Start isEmpty. Operand 75941 states and 109374 transitions. [2022-07-12 16:27:49,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2022-07-12 16:27:49,556 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:27:49,557 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 39, 39, 39, 39, 39, 39, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:27:49,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-12 16:27:49,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:27:49,771 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)] === [2022-07-12 16:27:49,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:27:49,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1483446359, now seen corresponding path program 1 times [2022-07-12 16:27:49,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:27:49,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [641760860] [2022-07-12 16:27:49,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:27:49,773 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:27:49,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:27:49,774 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) [2022-07-12 16:27:49,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-12 16:27:51,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:27:51,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 2065 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 16:27:51,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:27:57,614 INFO L134 CoverageAnalysis]: Checked inductivity of 7221 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7213 trivial. 0 not checked. [2022-07-12 16:27:57,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 16:27:59,507 INFO L134 CoverageAnalysis]: Checked inductivity of 7221 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7213 trivial. 0 not checked. [2022-07-12 16:27:59,507 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:27:59,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [641760860] [2022-07-12 16:27:59,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [641760860] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 16:27:59,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 16:27:59,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 16:27:59,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663993903] [2022-07-12 16:27:59,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:27:59,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 16:27:59,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:27:59,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 16:27:59,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 16:27:59,509 INFO L87 Difference]: Start difference. First operand 75941 states and 109374 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-07-12 16:28:01,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:28:01,232 INFO L93 Difference]: Finished difference Result 75947 states and 109379 transitions. [2022-07-12 16:28:01,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 16:28:01,233 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 533 [2022-07-12 16:28:01,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:28:01,494 INFO L225 Difference]: With dead ends: 75947 [2022-07-12 16:28:01,494 INFO L226 Difference]: Without dead ends: 75945 [2022-07-12 16:28:01,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1067 GetRequests, 1059 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 16:28:01,534 INFO L413 NwaCegarLoop]: 3069 mSDtfsCounter, 2946 mSDsluCounter, 6119 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2953 SdHoareTripleChecker+Valid, 9188 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 16:28:01,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2953 Valid, 9188 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 16:28:01,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75945 states. [2022-07-12 16:28:03,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75945 to 75945. [2022-07-12 16:28:04,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75945 states, 54279 states have (on average 1.307209049540338) internal successors, (70954), 54802 states have internal predecessors, (70954), 18444 states have call successors, (18444), 3246 states have call predecessors, (18444), 3219 states have return successors, (19979), 18262 states have call predecessors, (19979), 18440 states have call successors, (19979) [2022-07-12 16:28:04,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75945 states to 75945 states and 109377 transitions. [2022-07-12 16:28:04,268 INFO L78 Accepts]: Start accepts. Automaton has 75945 states and 109377 transitions. Word has length 533 [2022-07-12 16:28:04,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:28:04,268 INFO L495 AbstractCegarLoop]: Abstraction has 75945 states and 109377 transitions. [2022-07-12 16:28:04,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-07-12 16:28:04,269 INFO L276 IsEmpty]: Start isEmpty. Operand 75945 states and 109377 transitions. [2022-07-12 16:28:04,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 539 [2022-07-12 16:28:04,277 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:28:04,278 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 39, 39, 39, 39, 39, 39, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:28:04,310 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-07-12 16:28:04,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:28:04,496 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)] === [2022-07-12 16:28:04,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:28:04,496 INFO L85 PathProgramCache]: Analyzing trace with hash -679225182, now seen corresponding path program 1 times [2022-07-12 16:28:04,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:28:04,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1534216985] [2022-07-12 16:28:04,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:28:04,497 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:28:04,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:28:04,500 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) [2022-07-12 16:28:04,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-12 16:28:05,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:05,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 2072 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 16:28:05,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:28:12,093 INFO L134 CoverageAnalysis]: Checked inductivity of 7239 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 7229 trivial. 0 not checked. [2022-07-12 16:28:12,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 16:28:14,016 INFO L134 CoverageAnalysis]: Checked inductivity of 7239 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 7229 trivial. 0 not checked. [2022-07-12 16:28:14,016 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:28:14,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1534216985] [2022-07-12 16:28:14,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1534216985] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 16:28:14,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 16:28:14,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 16:28:14,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063547079] [2022-07-12 16:28:14,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:28:14,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 16:28:14,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:28:14,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 16:28:14,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 16:28:14,018 INFO L87 Difference]: Start difference. First operand 75945 states and 109377 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-07-12 16:28:15,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:28:15,987 INFO L93 Difference]: Finished difference Result 75951 states and 109382 transitions. [2022-07-12 16:28:15,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 16:28:15,988 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 538 [2022-07-12 16:28:15,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:28:16,261 INFO L225 Difference]: With dead ends: 75951 [2022-07-12 16:28:16,262 INFO L226 Difference]: Without dead ends: 75949 [2022-07-12 16:28:16,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1077 GetRequests, 1069 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 16:28:16,296 INFO L413 NwaCegarLoop]: 3069 mSDtfsCounter, 2946 mSDsluCounter, 6119 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2952 SdHoareTripleChecker+Valid, 9188 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 16:28:16,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2952 Valid, 9188 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 16:28:16,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75949 states. [2022-07-12 16:28:18,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75949 to 75949. [2022-07-12 16:28:18,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75949 states, 54282 states have (on average 1.3071920710364393) internal successors, (70957), 54805 states have internal predecessors, (70957), 18444 states have call successors, (18444), 3247 states have call predecessors, (18444), 3220 states have return successors, (19979), 18262 states have call predecessors, (19979), 18440 states have call successors, (19979) [2022-07-12 16:28:19,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75949 states to 75949 states and 109380 transitions. [2022-07-12 16:28:19,024 INFO L78 Accepts]: Start accepts. Automaton has 75949 states and 109380 transitions. Word has length 538 [2022-07-12 16:28:19,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:28:19,024 INFO L495 AbstractCegarLoop]: Abstraction has 75949 states and 109380 transitions. [2022-07-12 16:28:19,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-07-12 16:28:19,025 INFO L276 IsEmpty]: Start isEmpty. Operand 75949 states and 109380 transitions. [2022-07-12 16:28:19,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2022-07-12 16:28:19,034 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:28:19,035 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 39, 39, 39, 39, 39, 39, 7, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:28:19,062 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2022-07-12 16:28:19,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:28:19,252 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)] === [2022-07-12 16:28:19,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:28:19,252 INFO L85 PathProgramCache]: Analyzing trace with hash 213791497, now seen corresponding path program 1 times [2022-07-12 16:28:19,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:28:19,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1615919178] [2022-07-12 16:28:19,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:28:19,254 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:28:19,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:28:19,255 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) [2022-07-12 16:28:19,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-12 16:28:20,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:20,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 2079 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 16:28:20,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:28:26,995 INFO L134 CoverageAnalysis]: Checked inductivity of 7261 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 7249 trivial. 0 not checked. [2022-07-12 16:28:26,995 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 16:28:28,728 INFO L134 CoverageAnalysis]: Checked inductivity of 7261 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 7249 trivial. 0 not checked. [2022-07-12 16:28:28,728 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:28:28,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1615919178] [2022-07-12 16:28:28,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1615919178] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 16:28:28,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 16:28:28,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 16:28:28,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338242947] [2022-07-12 16:28:28,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:28:28,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 16:28:28,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:28:28,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 16:28:28,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 16:28:28,730 INFO L87 Difference]: Start difference. First operand 75949 states and 109380 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-07-12 16:28:30,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:28:30,563 INFO L93 Difference]: Finished difference Result 75955 states and 109385 transitions. [2022-07-12 16:28:30,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 16:28:30,563 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 543 [2022-07-12 16:28:30,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:28:30,803 INFO L225 Difference]: With dead ends: 75955 [2022-07-12 16:28:30,803 INFO L226 Difference]: Without dead ends: 75953 [2022-07-12 16:28:30,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1087 GetRequests, 1079 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 16:28:30,840 INFO L413 NwaCegarLoop]: 3069 mSDtfsCounter, 2946 mSDsluCounter, 6119 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2951 SdHoareTripleChecker+Valid, 9188 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 16:28:30,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2951 Valid, 9188 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 16:28:30,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75953 states. [2022-07-12 16:28:33,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75953 to 75953. [2022-07-12 16:28:33,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75953 states, 54285 states have (on average 1.307175094409137) internal successors, (70960), 54808 states have internal predecessors, (70960), 18444 states have call successors, (18444), 3248 states have call predecessors, (18444), 3221 states have return successors, (19979), 18262 states have call predecessors, (19979), 18440 states have call successors, (19979) [2022-07-12 16:28:33,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75953 states to 75953 states and 109383 transitions. [2022-07-12 16:28:33,496 INFO L78 Accepts]: Start accepts. Automaton has 75953 states and 109383 transitions. Word has length 543 [2022-07-12 16:28:33,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:28:33,497 INFO L495 AbstractCegarLoop]: Abstraction has 75953 states and 109383 transitions. [2022-07-12 16:28:33,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-07-12 16:28:33,497 INFO L276 IsEmpty]: Start isEmpty. Operand 75953 states and 109383 transitions. [2022-07-12 16:28:33,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2022-07-12 16:28:33,509 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:28:33,509 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 39, 39, 39, 39, 39, 39, 8, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:28:33,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-12 16:28:33,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:28:33,724 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)] === [2022-07-12 16:28:33,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:28:33,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1338792130, now seen corresponding path program 1 times [2022-07-12 16:28:33,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:28:33,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1511139870] [2022-07-12 16:28:33,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:28:33,725 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:28:33,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:28:33,727 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) [2022-07-12 16:28:33,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-12 16:28:34,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:35,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 2086 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 16:28:35,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:28:41,679 INFO L134 CoverageAnalysis]: Checked inductivity of 7287 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 7273 trivial. 0 not checked. [2022-07-12 16:28:41,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 16:28:43,557 INFO L134 CoverageAnalysis]: Checked inductivity of 7287 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 7273 trivial. 0 not checked. [2022-07-12 16:28:43,557 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:28:43,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1511139870] [2022-07-12 16:28:43,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1511139870] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 16:28:43,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 16:28:43,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 16:28:43,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286871508] [2022-07-12 16:28:43,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:28:43,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 16:28:43,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:28:43,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 16:28:43,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 16:28:43,558 INFO L87 Difference]: Start difference. First operand 75953 states and 109383 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-07-12 16:28:45,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:28:45,594 INFO L93 Difference]: Finished difference Result 75959 states and 109388 transitions. [2022-07-12 16:28:45,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 16:28:45,595 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 548 [2022-07-12 16:28:45,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:28:45,864 INFO L225 Difference]: With dead ends: 75959 [2022-07-12 16:28:45,865 INFO L226 Difference]: Without dead ends: 75957 [2022-07-12 16:28:45,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1097 GetRequests, 1089 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 16:28:45,905 INFO L413 NwaCegarLoop]: 3069 mSDtfsCounter, 2946 mSDsluCounter, 6119 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2950 SdHoareTripleChecker+Valid, 9188 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 16:28:45,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2950 Valid, 9188 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 16:28:45,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75957 states. [2022-07-12 16:28:48,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75957 to 75957. [2022-07-12 16:28:48,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75957 states, 54288 states have (on average 1.3071581196581197) internal successors, (70963), 54811 states have internal predecessors, (70963), 18444 states have call successors, (18444), 3249 states have call predecessors, (18444), 3222 states have return successors, (19979), 18262 states have call predecessors, (19979), 18440 states have call successors, (19979) [2022-07-12 16:28:48,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75957 states to 75957 states and 109386 transitions. [2022-07-12 16:28:48,810 INFO L78 Accepts]: Start accepts. Automaton has 75957 states and 109386 transitions. Word has length 548 [2022-07-12 16:28:48,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:28:48,811 INFO L495 AbstractCegarLoop]: Abstraction has 75957 states and 109386 transitions. [2022-07-12 16:28:48,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-07-12 16:28:48,811 INFO L276 IsEmpty]: Start isEmpty. Operand 75957 states and 109386 transitions. [2022-07-12 16:28:48,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2022-07-12 16:28:48,824 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:28:48,824 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 39, 39, 39, 39, 39, 39, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 16:28:48,857 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2022-07-12 16:28:49,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:28:49,048 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:28:49,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:28:49,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1804543087, now seen corresponding path program 1 times [2022-07-12 16:28:49,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:28:49,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [53086032] [2022-07-12 16:28:49,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:28:49,050 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:28:49,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:28:49,051 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:28:49,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-12 16:28:50,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:28:50,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 2230 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:28:50,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:28:51,087 INFO L134 CoverageAnalysis]: Checked inductivity of 7198 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 6921 trivial. 0 not checked. [2022-07-12 16:28:51,087 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:28:51,087 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:28:51,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [53086032] [2022-07-12 16:28:51,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [53086032] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:28:51,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:28:51,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:28:51,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233722358] [2022-07-12 16:28:51,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:28:51,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:28:51,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:28:51,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:28:51,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:28:51,089 INFO L87 Difference]: Start difference. First operand 75957 states and 109386 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-07-12 16:28:55,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:28:55,279 INFO L93 Difference]: Finished difference Result 184377 states and 265753 transitions. [2022-07-12 16:28:55,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:28:55,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 548 [2022-07-12 16:28:55,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:28:56,026 INFO L225 Difference]: With dead ends: 184377 [2022-07-12 16:28:56,026 INFO L226 Difference]: Without dead ends: 109039 [2022-07-12 16:28:56,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 546 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:28:56,258 INFO L413 NwaCegarLoop]: 5830 mSDtfsCounter, 2814 mSDsluCounter, 3020 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2814 SdHoareTripleChecker+Valid, 8850 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 16:28:56,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2814 Valid, 8850 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 16:28:56,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109039 states.