./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.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 03e2d0e28997af6c53edeab79acb28db60116030b3545ebb50af81c3e69fe889 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 15:23:23,084 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 15:23:23,086 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 15:23:23,124 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 15:23:23,124 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 15:23:23,126 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 15:23:23,127 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 15:23:23,129 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 15:23:23,130 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 15:23:23,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 15:23:23,134 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 15:23:23,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 15:23:23,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 15:23:23,138 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 15:23:23,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 15:23:23,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 15:23:23,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 15:23:23,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 15:23:23,144 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 15:23:23,149 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 15:23:23,150 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 15:23:23,151 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 15:23:23,151 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 15:23:23,152 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 15:23:23,153 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 15:23:23,158 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 15:23:23,159 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 15:23:23,159 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 15:23:23,160 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 15:23:23,160 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 15:23:23,161 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 15:23:23,161 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 15:23:23,163 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 15:23:23,163 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 15:23:23,163 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 15:23:23,164 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 15:23:23,164 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 15:23:23,165 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 15:23:23,166 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 15:23:23,166 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 15:23:23,167 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 15:23:23,168 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 15:23:23,169 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 15:23:23,194 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 15:23:23,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 15:23:23,195 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 15:23:23,195 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 15:23:23,196 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 15:23:23,196 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 15:23:23,196 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 15:23:23,196 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 15:23:23,197 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 15:23:23,197 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 15:23:23,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 15:23:23,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 15:23:23,198 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 15:23:23,198 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 15:23:23,198 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 15:23:23,198 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 15:23:23,198 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 15:23:23,198 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 15:23:23,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 15:23:23,199 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 15:23:23,200 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 15:23:23,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 15:23:23,200 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 15:23:23,200 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 15:23:23,200 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 15:23:23,201 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 15:23:23,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 15:23:23,201 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 15:23:23,201 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 15:23:23,201 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 15:23:23,202 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03e2d0e28997af6c53edeab79acb28db60116030b3545ebb50af81c3e69fe889 [2022-07-12 15:23:23,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 15:23:23,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 15:23:23,425 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 15:23:23,426 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 15:23:23,426 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 15:23:23,427 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i [2022-07-12 15:23:23,480 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44b52246c/2964cc9e111d423f9e8df097df920741/FLAGc5470a338 [2022-07-12 15:23:24,123 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 15:23:24,124 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i [2022-07-12 15:23:24,165 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44b52246c/2964cc9e111d423f9e8df097df920741/FLAGc5470a338 [2022-07-12 15:23:24,206 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44b52246c/2964cc9e111d423f9e8df097df920741 [2022-07-12 15:23:24,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 15:23:24,210 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 15:23:24,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 15:23:24,212 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 15:23:24,214 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 15:23:24,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:23:24" (1/1) ... [2022-07-12 15:23:24,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b156173 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:23:24, skipping insertion in model container [2022-07-12 15:23:24,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:23:24" (1/1) ... [2022-07-12 15:23:24,220 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 15:23:24,365 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 15:23:28,019 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482333,482346] [2022-07-12 15:23:28,021 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482502,482515] [2022-07-12 15:23:28,022 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482669,482682] [2022-07-12 15:23:28,026 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482837,482850] [2022-07-12 15:23:28,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 15:23:28,153 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 15:23:28,301 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.AssertionError: HeapLValues must be converted to RValue before their value can be queried. at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:517) 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 15:23:28,306 INFO L158 Benchmark]: Toolchain (without parser) took 4096.03ms. Allocated memory was 109.1MB in the beginning and 220.2MB in the end (delta: 111.1MB). Free memory was 76.2MB in the beginning and 135.3MB in the end (delta: -59.1MB). Peak memory consumption was 111.1MB. Max. memory is 16.1GB. [2022-07-12 15:23:28,307 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 109.1MB. Free memory is still 63.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 15:23:28,307 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4093.14ms. Allocated memory was 109.1MB in the beginning and 220.2MB in the end (delta: 111.1MB). Free memory was 76.2MB in the beginning and 135.3MB in the end (delta: -59.1MB). Peak memory consumption was 111.1MB. Max. memory is 16.1GB. [2022-07-12 15:23:28,308 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 109.1MB. Free memory is still 63.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4093.14ms. Allocated memory was 109.1MB in the beginning and 220.2MB in the end (delta: 111.1MB). Free memory was 76.2MB in the beginning and 135.3MB in the end (delta: -59.1MB). Peak memory consumption was 111.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: AssertionError: HeapLValues must be converted to RValue before their value can be queried. de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: AssertionError: HeapLValues must be converted to RValue before their value can be queried.: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.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 03e2d0e28997af6c53edeab79acb28db60116030b3545ebb50af81c3e69fe889 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 15:23:29,873 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 15:23:29,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 15:23:29,908 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 15:23:29,908 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 15:23:29,909 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 15:23:29,912 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 15:23:29,914 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 15:23:29,916 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 15:23:29,920 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 15:23:29,920 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 15:23:29,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 15:23:29,927 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 15:23:29,928 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 15:23:29,929 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 15:23:29,931 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 15:23:29,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 15:23:29,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 15:23:29,934 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 15:23:29,939 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 15:23:29,940 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 15:23:29,940 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 15:23:29,942 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 15:23:29,943 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 15:23:29,944 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 15:23:29,958 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 15:23:29,958 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 15:23:29,959 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 15:23:29,959 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 15:23:29,960 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 15:23:29,960 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 15:23:29,961 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 15:23:29,962 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 15:23:29,963 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 15:23:29,964 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 15:23:29,965 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 15:23:29,965 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 15:23:29,965 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 15:23:29,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 15:23:29,966 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 15:23:29,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 15:23:29,967 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 15:23:29,973 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 15:23:29,995 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 15:23:29,996 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 15:23:29,996 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 15:23:29,996 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 15:23:29,997 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 15:23:29,997 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 15:23:29,998 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 15:23:29,998 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 15:23:29,998 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 15:23:29,999 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 15:23:30,000 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 15:23:30,000 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 15:23:30,000 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 15:23:30,001 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 15:23:30,001 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 15:23:30,001 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 15:23:30,001 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 15:23:30,001 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 15:23:30,002 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 15:23:30,002 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 15:23:30,002 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 15:23:30,002 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 15:23:30,002 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 15:23:30,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 15:23:30,003 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 15:23:30,003 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 15:23:30,003 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 15:23:30,003 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 15:23:30,003 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 15:23:30,004 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 15:23:30,004 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 15:23:30,004 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 15:23:30,004 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 15:23:30,004 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03e2d0e28997af6c53edeab79acb28db60116030b3545ebb50af81c3e69fe889 [2022-07-12 15:23:30,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 15:23:30,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 15:23:30,307 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 15:23:30,307 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 15:23:30,308 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 15:23:30,309 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i [2022-07-12 15:23:30,352 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3eecb3b8/4594758b12284d0c9351cd583edb1326/FLAGa0d43aa2d [2022-07-12 15:23:31,082 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 15:23:31,083 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i [2022-07-12 15:23:31,140 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3eecb3b8/4594758b12284d0c9351cd583edb1326/FLAGa0d43aa2d [2022-07-12 15:23:31,338 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3eecb3b8/4594758b12284d0c9351cd583edb1326 [2022-07-12 15:23:31,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 15:23:31,341 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 15:23:31,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 15:23:31,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 15:23:31,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 15:23:31,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:23:31" (1/1) ... [2022-07-12 15:23:31,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d1756ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:23:31, skipping insertion in model container [2022-07-12 15:23:31,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:23:31" (1/1) ... [2022-07-12 15:23:31,353 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 15:23:31,501 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 15:23:35,136 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482333,482346] [2022-07-12 15:23:35,139 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482502,482515] [2022-07-12 15:23:35,139 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482669,482682] [2022-07-12 15:23:35,140 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482837,482850] [2022-07-12 15:23:35,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 15:23:35,259 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 15:23:35,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 15:23:35,655 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482333,482346] [2022-07-12 15:23:35,656 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482502,482515] [2022-07-12 15:23:35,656 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482669,482682] [2022-07-12 15:23:35,656 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482837,482850] [2022-07-12 15:23:35,661 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 15:23:35,698 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 15:23:36,146 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482333,482346] [2022-07-12 15:23:36,147 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482502,482515] [2022-07-12 15:23:36,148 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482669,482682] [2022-07-12 15:23:36,149 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482837,482850] [2022-07-12 15:23:36,162 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 15:23:36,442 INFO L208 MainTranslator]: Completed translation [2022-07-12 15:23:36,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:23:36 WrapperNode [2022-07-12 15:23:36,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 15:23:36,444 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 15:23:36,444 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 15:23:36,444 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 15:23:36,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:23:36" (1/1) ... [2022-07-12 15:23:36,580 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:23:36" (1/1) ... [2022-07-12 15:23:36,820 INFO L137 Inliner]: procedures = 593, calls = 6324, calls flagged for inlining = 254, calls inlined = 233, statements flattened = 8470 [2022-07-12 15:23:36,821 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 15:23:36,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 15:23:36,822 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 15:23:36,822 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 15:23:36,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:23:36" (1/1) ... [2022-07-12 15:23:36,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:23:36" (1/1) ... [2022-07-12 15:23:36,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:23:36" (1/1) ... [2022-07-12 15:23:36,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:23:36" (1/1) ... [2022-07-12 15:23:36,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:23:36" (1/1) ... [2022-07-12 15:23:37,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:23:36" (1/1) ... [2022-07-12 15:23:37,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:23:36" (1/1) ... [2022-07-12 15:23:37,088 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 15:23:37,089 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 15:23:37,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 15:23:37,090 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 15:23:37,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:23:36" (1/1) ... [2022-07-12 15:23:37,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 15:23:37,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 15:23:37,116 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 15:23:37,149 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 15:23:37,161 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_le_to_cpu [2022-07-12 15:23:37,161 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_le_to_cpu [2022-07-12 15:23:37,161 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_eth_tx_timeout [2022-07-12 15:23:37,161 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_eth_tx_timeout [2022-07-12 15:23:37,162 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-07-12 15:23:37,162 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-12 15:23:37,162 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-12 15:23:37,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 15:23:37,162 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 15:23:37,162 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_trigger [2022-07-12 15:23:37,162 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_trigger [2022-07-12 15:23:37,163 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-12 15:23:37,163 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-12 15:23:37,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 15:23:37,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 15:23:37,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_slock_of_NOT_ARG_SIGN [2022-07-12 15:23:37,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_slock_of_NOT_ARG_SIGN [2022-07-12 15:23:37,163 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_mib_mode_helper [2022-07-12 15:23:37,164 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_mib_mode_helper [2022-07-12 15:23:37,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-12 15:23:37,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-12 15:23:37,164 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-12 15:23:37,164 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-12 15:23:37,164 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-07-12 15:23:37,165 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-07-12 15:23:37,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2022-07-12 15:23:37,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2022-07-12 15:23:37,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_slock_of_NOT_ARG_SIGN [2022-07-12 15:23:37,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_slock_of_NOT_ARG_SIGN [2022-07-12 15:23:37,165 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_request [2022-07-12 15:23:37,165 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_request [2022-07-12 15:23:37,165 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_cpu_to_le [2022-07-12 15:23:37,166 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_cpu_to_le [2022-07-12 15:23:37,166 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-12 15:23:37,166 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_get_state [2022-07-12 15:23:37,166 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_get_state [2022-07-12 15:23:37,166 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-12 15:23:37,166 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-12 15:23:37,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-12 15:23:37,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-12 15:23:37,167 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-12 15:23:37,167 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-12 15:23:37,167 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-12 15:23:37,167 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-12 15:23:37,167 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_release [2022-07-12 15:23:37,167 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_release [2022-07-12 15:23:37,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-12 15:23:37,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-12 15:23:37,168 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-12 15:23:37,168 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-12 15:23:37,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 15:23:37,168 INFO L130 BoogieDeclarations]: Found specification of procedure send_simple_event [2022-07-12 15:23:37,168 INFO L138 BoogieDeclarations]: Found implementation of procedure send_simple_event [2022-07-12 15:23:37,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-12 15:23:37,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 15:23:37,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 15:23:37,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-12 15:23:37,169 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-12 15:23:37,169 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-12 15:23:37,169 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-12 15:23:37,169 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-12 15:23:37,169 INFO L130 BoogieDeclarations]: Found specification of procedure send_formatted_event [2022-07-12 15:23:37,169 INFO L138 BoogieDeclarations]: Found implementation of procedure send_formatted_event [2022-07-12 15:23:37,169 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set [2022-07-12 15:23:37,170 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set [2022-07-12 15:23:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-12 15:23:37,170 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-12 15:23:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_reset [2022-07-12 15:23:37,170 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_reset [2022-07-12 15:23:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 15:23:37,170 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 15:23:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-07-12 15:23:37,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-07-12 15:23:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-07-12 15:23:37,171 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-07-12 15:23:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-12 15:23:37,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-12 15:23:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 15:23:37,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 15:23:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 15:23:37,172 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 15:23:37,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-12 15:23:37,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-12 15:23:37,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-12 15:23:37,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-12 15:23:37,172 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_open [2022-07-12 15:23:37,172 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_open [2022-07-12 15:23:37,172 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_resume [2022-07-12 15:23:37,173 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_resume [2022-07-12 15:23:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-12 15:23:37,173 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-12 15:23:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-12 15:23:37,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-12 15:23:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 15:23:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-12 15:23:37,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-12 15:23:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-12 15:23:37,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-12 15:23:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2022-07-12 15:23:37,174 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2022-07-12 15:23:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-07-12 15:23:37,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-07-12 15:23:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 15:23:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-12 15:23:37,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-12 15:23:37,175 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 15:23:37,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 15:23:37,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 15:23:37,175 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-12 15:23:37,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-12 15:23:37,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-12 15:23:37,175 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 15:23:37,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 15:23:37,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-12 15:23:37,176 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-07-12 15:23:37,176 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-07-12 15:23:37,176 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-12 15:23:37,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-12 15:23:37,176 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-12 15:23:37,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-12 15:23:37,177 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 15:23:37,177 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 15:23:37,177 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-12 15:23:37,177 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-12 15:23:37,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-12 15:23:37,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-12 15:23:37,177 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2022-07-12 15:23:37,177 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2022-07-12 15:23:37,177 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-12 15:23:37,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-12 15:23:37,178 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-12 15:23:37,178 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-12 15:23:37,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-12 15:23:37,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_prism54_module_exit_12_2 [2022-07-12 15:23:37,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_prism54_module_exit_12_2 [2022-07-12 15:23:37,178 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2022-07-12 15:23:37,178 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2022-07-12 15:23:37,178 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-07-12 15:23:37,179 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-07-12 15:23:37,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 15:23:37,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 15:23:37,179 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_send_event [2022-07-12 15:23:37,179 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_send_event [2022-07-12 15:23:37,179 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-12 15:23:37,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-12 15:23:37,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 15:23:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-12 15:23:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-12 15:23:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_clear_mac [2022-07-12 15:23:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_clear_mac [2022-07-12 15:23:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 15:23:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_wpa_bss_ie_get [2022-07-12 15:23:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_wpa_bss_ie_get [2022-07-12 15:23:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 15:23:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 15:23:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-12 15:23:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 15:23:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 15:23:37,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 15:23:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-12 15:23:37,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-12 15:23:37,235 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-12 15:23:37,235 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-12 15:23:37,235 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-12 15:23:37,235 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-12 15:23:37,235 INFO L130 BoogieDeclarations]: Found specification of procedure handle_request [2022-07-12 15:23:37,235 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_request [2022-07-12 15:23:37,235 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_bring_down [2022-07-12 15:23:37,235 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_bring_down [2022-07-12 15:23:37,235 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-07-12 15:23:37,235 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-07-12 15:23:37,235 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-12 15:23:37,235 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-12 15:23:37,235 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-12 15:23:37,235 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-12 15:23:37,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 15:23:37,236 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 15:23:37,236 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-12 15:23:37,236 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-12 15:23:37,236 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-07-12 15:23:37,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-07-12 15:23:37,236 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-12 15:23:37,236 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-12 15:23:37,236 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-12 15:23:37,236 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-12 15:23:37,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 15:23:37,236 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-12 15:23:37,236 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-12 15:23:37,236 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_set_state [2022-07-12 15:23:37,236 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_set_state [2022-07-12 15:23:37,236 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2022-07-12 15:23:37,236 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2022-07-12 15:23:37,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 15:23:37,236 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_varlen [2022-07-12 15:23:37,236 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_varlen [2022-07-12 15:23:37,236 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2022-07-12 15:23:37,237 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2022-07-12 15:23:37,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 15:23:37,237 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2022-07-12 15:23:37,237 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2022-07-12 15:23:37,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 15:23:37,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 15:23:37,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 15:23:37,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 15:23:37,237 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_close [2022-07-12 15:23:37,237 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_close [2022-07-12 15:23:37,237 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-07-12 15:23:37,237 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-07-12 15:23:37,237 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_get_request [2022-07-12 15:23:37,237 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_get_request [2022-07-12 15:23:37,237 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-12 15:23:37,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-12 15:23:37,237 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-12 15:23:37,237 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-12 15:23:37,237 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-12 15:23:37,238 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-12 15:23:37,238 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-12 15:23:37,238 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-12 15:23:37,238 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_remove [2022-07-12 15:23:37,238 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_remove [2022-07-12 15:23:37,238 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_w32_flush [2022-07-12 15:23:37,238 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_w32_flush [2022-07-12 15:23:37,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-12 15:23:37,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-12 15:23:37,238 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-12 15:23:37,238 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-12 15:23:37,238 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-07-12 15:23:37,238 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-07-12 15:23:37,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-12 15:23:37,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-12 15:23:37,238 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-12 15:23:37,238 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-12 15:23:37,238 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit_list [2022-07-12 15:23:37,238 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit_list [2022-07-12 15:23:37,239 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-12 15:23:37,239 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-12 15:23:37,239 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-12 15:23:37,239 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-12 15:23:37,239 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-12 15:23:37,239 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-12 15:23:37,239 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgmt_rx_fill [2022-07-12 15:23:37,239 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgmt_rx_fill [2022-07-12 15:23:37,239 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_transaction [2022-07-12 15:23:37,239 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_transaction [2022-07-12 15:23:37,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_61 [2022-07-12 15:23:37,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_61 [2022-07-12 15:23:37,239 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 15:23:37,239 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 15:23:37,239 INFO L130 BoogieDeclarations]: Found specification of procedure channel_of_freq [2022-07-12 15:23:37,239 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_of_freq [2022-07-12 15:23:37,239 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-12 15:23:37,240 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-12 15:23:37,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-12 15:23:37,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-12 15:23:37,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 15:23:37,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-12 15:23:37,240 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-07-12 15:23:37,240 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-07-12 15:23:37,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 15:23:37,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 15:23:37,240 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_free_memory [2022-07-12 15:23:37,240 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_free_memory [2022-07-12 15:23:37,240 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit [2022-07-12 15:23:37,240 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit [2022-07-12 15:23:37,240 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-07-12 15:23:37,240 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-07-12 15:23:37,240 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32s [2022-07-12 15:23:37,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32s [2022-07-12 15:23:37,240 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2022-07-12 15:23:37,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2022-07-12 15:23:37,241 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-12 15:23:37,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-12 15:23:37,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-12 15:23:37,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-12 15:23:37,242 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-12 15:23:37,242 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-12 15:23:37,243 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-07-12 15:23:37,243 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-07-12 15:23:37,243 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_in_queue [2022-07-12 15:23:37,243 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_in_queue [2022-07-12 15:23:37,243 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-12 15:23:37,243 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-12 15:23:37,243 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-12 15:23:37,243 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-12 15:23:37,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-12 15:23:37,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-12 15:23:37,244 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-07-12 15:23:37,244 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-07-12 15:23:37,244 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_disable_interrupts [2022-07-12 15:23:37,244 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_disable_interrupts [2022-07-12 15:23:38,041 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 15:23:38,043 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 15:23:41,007 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 15:24:35,563 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-12 15:24:39,841 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 15:24:39,862 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 15:24:39,862 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-12 15:24:39,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 03:24:39 BoogieIcfgContainer [2022-07-12 15:24:39,866 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 15:24:39,872 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 15:24:39,872 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 15:24:39,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 15:24:39,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 03:23:31" (1/3) ... [2022-07-12 15:24:39,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1085c8a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 03:24:39, skipping insertion in model container [2022-07-12 15:24:39,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:23:36" (2/3) ... [2022-07-12 15:24:39,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1085c8a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 03:24:39, skipping insertion in model container [2022-07-12 15:24:39,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 03:24:39" (3/3) ... [2022-07-12 15:24:39,876 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i [2022-07-12 15:24:39,886 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 15:24:39,886 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-12 15:24:39,956 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 15:24:39,960 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@52eee1e4, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6be93064 [2022-07-12 15:24:39,960 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-12 15:24:39,969 INFO L276 IsEmpty]: Start isEmpty. Operand has 2399 states, 1649 states have (on average 1.2941176470588236) internal successors, (2134), 1700 states have internal predecessors, (2134), 620 states have call successors, (620), 128 states have call predecessors, (620), 127 states have return successors, (614), 594 states have call predecessors, (614), 614 states have call successors, (614) [2022-07-12 15:24:39,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-12 15:24:39,979 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:24:39,980 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:24:39,980 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 15:24:39,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:24:39,983 INFO L85 PathProgramCache]: Analyzing trace with hash 2143999495, now seen corresponding path program 1 times [2022-07-12 15:24:40,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:24:40,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [667689450] [2022-07-12 15:24:40,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:24:40,012 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:24:40,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:24:40,014 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 15:24:40,016 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 15:24:47,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:24:47,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 5202 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:24:47,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:24:48,105 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-07-12 15:24:48,106 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:24:48,106 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:24:48,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [667689450] [2022-07-12 15:24:48,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [667689450] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:24:48,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:24:48,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:24:48,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156747927] [2022-07-12 15:24:48,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:24:48,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:24:48,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:24:48,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:24:48,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:24:48,148 INFO L87 Difference]: Start difference. First operand has 2399 states, 1649 states have (on average 1.2941176470588236) internal successors, (2134), 1700 states have internal predecessors, (2134), 620 states have call successors, (620), 128 states have call predecessors, (620), 127 states have return successors, (614), 594 states have call predecessors, (614), 614 states have call successors, (614) Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 15:24:48,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:24:48,974 INFO L93 Difference]: Finished difference Result 6801 states and 9827 transitions. [2022-07-12 15:24:48,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:24:48,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 89 [2022-07-12 15:24:48,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:24:49,014 INFO L225 Difference]: With dead ends: 6801 [2022-07-12 15:24:49,015 INFO L226 Difference]: Without dead ends: 4399 [2022-07-12 15:24:49,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 87 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 15:24:49,041 INFO L413 NwaCegarLoop]: 3845 mSDtfsCounter, 2809 mSDsluCounter, 3275 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2809 SdHoareTripleChecker+Valid, 7120 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 15:24:49,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2809 Valid, 7120 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 15:24:49,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4399 states. [2022-07-12 15:24:49,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4399 to 4372. [2022-07-12 15:24:49,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4372 states, 3013 states have (on average 1.2658479920345171) internal successors, (3814), 3113 states have internal predecessors, (3814), 1113 states have call successors, (1113), 245 states have call predecessors, (1113), 243 states have return successors, (1111), 1063 states have call predecessors, (1111), 1109 states have call successors, (1111) [2022-07-12 15:24:49,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4372 states to 4372 states and 6038 transitions. [2022-07-12 15:24:49,248 INFO L78 Accepts]: Start accepts. Automaton has 4372 states and 6038 transitions. Word has length 89 [2022-07-12 15:24:49,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:24:49,249 INFO L495 AbstractCegarLoop]: Abstraction has 4372 states and 6038 transitions. [2022-07-12 15:24:49,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 15:24:49,249 INFO L276 IsEmpty]: Start isEmpty. Operand 4372 states and 6038 transitions. [2022-07-12 15:24:49,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-12 15:24:49,253 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:24:49,254 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:24:49,396 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-12 15:24:49,454 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 15:24:49,455 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 15:24:49,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:24:49,455 INFO L85 PathProgramCache]: Analyzing trace with hash -926596189, now seen corresponding path program 1 times [2022-07-12 15:24:49,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:24:49,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [361513601] [2022-07-12 15:24:49,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:24:49,461 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:24:49,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:24:49,462 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 15:24:49,464 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 15:24:56,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:24:57,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 5158 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:24:57,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:24:57,505 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-07-12 15:24:57,505 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:24:57,505 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:24:57,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [361513601] [2022-07-12 15:24:57,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [361513601] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:24:57,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:24:57,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:24:57,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034321171] [2022-07-12 15:24:57,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:24:57,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:24:57,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:24:57,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:24:57,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:24:57,511 INFO L87 Difference]: Start difference. First operand 4372 states and 6038 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-12 15:24:58,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:24:58,381 INFO L93 Difference]: Finished difference Result 12907 states and 17829 transitions. [2022-07-12 15:24:58,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:24:58,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 94 [2022-07-12 15:24:58,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:24:58,440 INFO L225 Difference]: With dead ends: 12907 [2022-07-12 15:24:58,440 INFO L226 Difference]: Without dead ends: 8552 [2022-07-12 15:24:58,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 92 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 15:24:58,471 INFO L413 NwaCegarLoop]: 3880 mSDtfsCounter, 3179 mSDsluCounter, 3208 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3179 SdHoareTripleChecker+Valid, 7088 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 15:24:58,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3179 Valid, 7088 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 15:24:58,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8552 states. [2022-07-12 15:24:58,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8552 to 8548. [2022-07-12 15:24:58,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8548 states, 5891 states have (on average 1.2656594805635715) internal successors, (7456), 6083 states have internal predecessors, (7456), 2171 states have call successors, (2171), 486 states have call predecessors, (2171), 483 states have return successors, (2171), 2078 states have call predecessors, (2171), 2167 states have call successors, (2171) [2022-07-12 15:24:58,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8548 states to 8548 states and 11798 transitions. [2022-07-12 15:24:58,785 INFO L78 Accepts]: Start accepts. Automaton has 8548 states and 11798 transitions. Word has length 94 [2022-07-12 15:24:58,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:24:58,787 INFO L495 AbstractCegarLoop]: Abstraction has 8548 states and 11798 transitions. [2022-07-12 15:24:58,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-12 15:24:58,788 INFO L276 IsEmpty]: Start isEmpty. Operand 8548 states and 11798 transitions. [2022-07-12 15:24:58,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-12 15:24:58,793 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:24:58,793 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:24:58,924 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 15:24:59,007 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 15:24:59,008 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 15:24:59,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:24:59,008 INFO L85 PathProgramCache]: Analyzing trace with hash 463962046, now seen corresponding path program 1 times [2022-07-12 15:24:59,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:24:59,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1272832634] [2022-07-12 15:24:59,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:24:59,014 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:24:59,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:24:59,015 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 15:24:59,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 15:25:06,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:25:06,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 5196 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:25:06,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:25:06,831 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-07-12 15:25:06,831 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:25:06,831 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:25:06,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1272832634] [2022-07-12 15:25:06,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1272832634] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:25:06,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:25:06,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:25:06,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358163451] [2022-07-12 15:25:06,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:25:06,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:25:06,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:25:06,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:25:06,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:25:06,833 INFO L87 Difference]: Start difference. First operand 8548 states and 11798 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-12 15:25:07,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:25:07,874 INFO L93 Difference]: Finished difference Result 24926 states and 34392 transitions. [2022-07-12 15:25:07,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:25:07,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 99 [2022-07-12 15:25:07,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:25:07,982 INFO L225 Difference]: With dead ends: 24926 [2022-07-12 15:25:07,982 INFO L226 Difference]: Without dead ends: 16395 [2022-07-12 15:25:08,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 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 15:25:08,023 INFO L413 NwaCegarLoop]: 3868 mSDtfsCounter, 3060 mSDsluCounter, 3205 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3060 SdHoareTripleChecker+Valid, 7073 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 15:25:08,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3060 Valid, 7073 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 15:25:08,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16395 states. [2022-07-12 15:25:08,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16395 to 16358. [2022-07-12 15:25:08,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16358 states, 11263 states have (on average 1.2653822249844624) internal successors, (14252), 11643 states have internal predecessors, (14252), 4147 states have call successors, (4147), 956 states have call predecessors, (4147), 945 states have return successors, (4153), 3946 states have call predecessors, (4153), 4143 states have call successors, (4153) [2022-07-12 15:25:08,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16358 states to 16358 states and 22552 transitions. [2022-07-12 15:25:08,624 INFO L78 Accepts]: Start accepts. Automaton has 16358 states and 22552 transitions. Word has length 99 [2022-07-12 15:25:08,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:25:08,626 INFO L495 AbstractCegarLoop]: Abstraction has 16358 states and 22552 transitions. [2022-07-12 15:25:08,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-12 15:25:08,627 INFO L276 IsEmpty]: Start isEmpty. Operand 16358 states and 22552 transitions. [2022-07-12 15:25:08,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-07-12 15:25:08,637 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:25:08,637 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 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] [2022-07-12 15:25:08,772 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 15:25:08,855 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 15:25:08,856 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:25:08,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:25:08,856 INFO L85 PathProgramCache]: Analyzing trace with hash 836421759, now seen corresponding path program 1 times [2022-07-12 15:25:08,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:25:08,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1405966473] [2022-07-12 15:25:08,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:25:08,867 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:25:08,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:25:08,868 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 15:25:08,870 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 15:25:16,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:25:17,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 5299 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:25:17,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:25:18,507 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2022-07-12 15:25:18,508 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:25:18,508 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:25:18,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1405966473] [2022-07-12 15:25:18,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1405966473] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:25:18,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:25:18,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:25:18,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139003001] [2022-07-12 15:25:18,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:25:18,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:25:18,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:25:18,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:25:18,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:25:18,510 INFO L87 Difference]: Start difference. First operand 16358 states and 22552 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-07-12 15:25:19,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:25:19,047 INFO L93 Difference]: Finished difference Result 16364 states and 22557 transitions. [2022-07-12 15:25:19,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:25:19,048 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 166 [2022-07-12 15:25:19,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:25:19,118 INFO L225 Difference]: With dead ends: 16364 [2022-07-12 15:25:19,118 INFO L226 Difference]: Without dead ends: 16362 [2022-07-12 15:25:19,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:25:19,133 INFO L413 NwaCegarLoop]: 3290 mSDtfsCounter, 3205 mSDsluCounter, 6568 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3206 SdHoareTripleChecker+Valid, 9858 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 15:25:19,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3206 Valid, 9858 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:25:19,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16362 states. [2022-07-12 15:25:19,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16362 to 16362. [2022-07-12 15:25:19,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16362 states, 11266 states have (on average 1.2653115568968578) internal successors, (14255), 11646 states have internal predecessors, (14255), 4147 states have call successors, (4147), 957 states have call predecessors, (4147), 946 states have return successors, (4153), 3946 states have call predecessors, (4153), 4143 states have call successors, (4153) [2022-07-12 15:25:19,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16362 states to 16362 states and 22555 transitions. [2022-07-12 15:25:19,994 INFO L78 Accepts]: Start accepts. Automaton has 16362 states and 22555 transitions. Word has length 166 [2022-07-12 15:25:19,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:25:19,996 INFO L495 AbstractCegarLoop]: Abstraction has 16362 states and 22555 transitions. [2022-07-12 15:25:19,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-07-12 15:25:19,996 INFO L276 IsEmpty]: Start isEmpty. Operand 16362 states and 22555 transitions. [2022-07-12 15:25:20,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-07-12 15:25:20,002 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:25:20,003 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 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] [2022-07-12 15:25:20,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-12 15:25:20,219 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 15:25:20,219 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:25:20,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:25:20,220 INFO L85 PathProgramCache]: Analyzing trace with hash 449362951, now seen corresponding path program 1 times [2022-07-12 15:25:20,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:25:20,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [722672579] [2022-07-12 15:25:20,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:25:20,225 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:25:20,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:25:20,227 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 15:25:20,228 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 15:25:27,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:25:28,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 5306 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:25:28,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:25:29,659 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2022-07-12 15:25:29,659 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:25:30,458 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2022-07-12 15:25:30,458 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:25:30,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [722672579] [2022-07-12 15:25:30,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [722672579] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:25:30,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:25:30,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:25:30,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070246159] [2022-07-12 15:25:30,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:25:30,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:25:30,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:25:30,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:25:30,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:25:30,460 INFO L87 Difference]: Start difference. First operand 16362 states and 22555 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 15:25:31,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:25:31,136 INFO L93 Difference]: Finished difference Result 16368 states and 22560 transitions. [2022-07-12 15:25:31,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:25:31,137 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 171 [2022-07-12 15:25:31,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:25:31,297 INFO L225 Difference]: With dead ends: 16368 [2022-07-12 15:25:31,297 INFO L226 Difference]: Without dead ends: 16366 [2022-07-12 15:25:31,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:25:31,308 INFO L413 NwaCegarLoop]: 3293 mSDtfsCounter, 3220 mSDsluCounter, 6567 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3230 SdHoareTripleChecker+Valid, 9860 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 15:25:31,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3230 Valid, 9860 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:25:31,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16366 states. [2022-07-12 15:25:32,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16366 to 16366. [2022-07-12 15:25:32,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16366 states, 11269 states have (on average 1.2652409264353537) internal successors, (14258), 11649 states have internal predecessors, (14258), 4147 states have call successors, (4147), 958 states have call predecessors, (4147), 947 states have return successors, (4153), 3946 states have call predecessors, (4153), 4143 states have call successors, (4153) [2022-07-12 15:25:32,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16366 states to 16366 states and 22558 transitions. [2022-07-12 15:25:32,117 INFO L78 Accepts]: Start accepts. Automaton has 16366 states and 22558 transitions. Word has length 171 [2022-07-12 15:25:32,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:25:32,117 INFO L495 AbstractCegarLoop]: Abstraction has 16366 states and 22558 transitions. [2022-07-12 15:25:32,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 15:25:32,118 INFO L276 IsEmpty]: Start isEmpty. Operand 16366 states and 22558 transitions. [2022-07-12 15:25:32,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-07-12 15:25:32,123 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:25:32,124 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 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] [2022-07-12 15:25:32,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-12 15:25:32,334 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 15:25:32,334 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 15:25:32,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:25:32,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1338692927, now seen corresponding path program 1 times [2022-07-12 15:25:32,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:25:32,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [290649072] [2022-07-12 15:25:32,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:25:32,342 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:25:32,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:25:32,344 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 15:25:32,346 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 15:25:39,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:25:40,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 5313 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:25:40,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:25:41,746 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2022-07-12 15:25:41,747 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:25:42,574 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2022-07-12 15:25:42,575 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:25:42,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [290649072] [2022-07-12 15:25:42,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [290649072] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:25:42,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:25:42,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:25:42,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142400827] [2022-07-12 15:25:42,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:25:42,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:25:42,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:25:42,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:25:42,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:25:42,577 INFO L87 Difference]: Start difference. First operand 16366 states and 22558 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-12 15:25:43,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:25:43,221 INFO L93 Difference]: Finished difference Result 16372 states and 22563 transitions. [2022-07-12 15:25:43,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:25:43,222 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 176 [2022-07-12 15:25:43,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:25:43,299 INFO L225 Difference]: With dead ends: 16372 [2022-07-12 15:25:43,299 INFO L226 Difference]: Without dead ends: 16370 [2022-07-12 15:25:43,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:25:43,314 INFO L413 NwaCegarLoop]: 3293 mSDtfsCounter, 3220 mSDsluCounter, 6567 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3229 SdHoareTripleChecker+Valid, 9860 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 15:25:43,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3229 Valid, 9860 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:25:43,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16370 states. [2022-07-12 15:25:43,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16370 to 16370. [2022-07-12 15:25:43,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16370 states, 11272 states have (on average 1.2651703335699078) internal successors, (14261), 11652 states have internal predecessors, (14261), 4147 states have call successors, (4147), 959 states have call predecessors, (4147), 948 states have return successors, (4153), 3946 states have call predecessors, (4153), 4143 states have call successors, (4153) [2022-07-12 15:25:43,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16370 states to 16370 states and 22561 transitions. [2022-07-12 15:25:43,950 INFO L78 Accepts]: Start accepts. Automaton has 16370 states and 22561 transitions. Word has length 176 [2022-07-12 15:25:43,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:25:43,951 INFO L495 AbstractCegarLoop]: Abstraction has 16370 states and 22561 transitions. [2022-07-12 15:25:43,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-12 15:25:43,951 INFO L276 IsEmpty]: Start isEmpty. Operand 16370 states and 22561 transitions. [2022-07-12 15:25:43,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-07-12 15:25:43,958 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:25:43,959 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 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] [2022-07-12 15:25:44,095 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 15:25:44,183 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 15:25:44,183 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 15:25:44,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:25:44,184 INFO L85 PathProgramCache]: Analyzing trace with hash -186853689, now seen corresponding path program 1 times [2022-07-12 15:25:44,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:25:44,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [605337571] [2022-07-12 15:25:44,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:25:44,189 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:25:44,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:25:44,190 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 15:25:44,192 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 15:25:51,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:25:52,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 5320 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:25:52,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:25:53,728 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2022-07-12 15:25:53,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:25:54,606 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2022-07-12 15:25:54,607 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:25:54,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [605337571] [2022-07-12 15:25:54,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [605337571] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:25:54,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:25:54,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:25:54,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966147442] [2022-07-12 15:25:54,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:25:54,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:25:54,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:25:54,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:25:54,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:25:54,609 INFO L87 Difference]: Start difference. First operand 16370 states and 22561 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 15:25:55,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:25:55,185 INFO L93 Difference]: Finished difference Result 16376 states and 22566 transitions. [2022-07-12 15:25:55,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:25:55,185 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 181 [2022-07-12 15:25:55,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:25:55,240 INFO L225 Difference]: With dead ends: 16376 [2022-07-12 15:25:55,241 INFO L226 Difference]: Without dead ends: 16374 [2022-07-12 15:25:55,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:25:55,248 INFO L413 NwaCegarLoop]: 3293 mSDtfsCounter, 3220 mSDsluCounter, 6567 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3228 SdHoareTripleChecker+Valid, 9860 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 15:25:55,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3228 Valid, 9860 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:25:55,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16374 states. [2022-07-12 15:25:55,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16374 to 16374. [2022-07-12 15:25:55,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16374 states, 11275 states have (on average 1.26509977827051) internal successors, (14264), 11655 states have internal predecessors, (14264), 4147 states have call successors, (4147), 960 states have call predecessors, (4147), 949 states have return successors, (4153), 3946 states have call predecessors, (4153), 4143 states have call successors, (4153) [2022-07-12 15:25:55,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16374 states to 16374 states and 22564 transitions. [2022-07-12 15:25:55,815 INFO L78 Accepts]: Start accepts. Automaton has 16374 states and 22564 transitions. Word has length 181 [2022-07-12 15:25:55,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:25:55,816 INFO L495 AbstractCegarLoop]: Abstraction has 16374 states and 22564 transitions. [2022-07-12 15:25:55,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 15:25:55,817 INFO L276 IsEmpty]: Start isEmpty. Operand 16374 states and 22564 transitions. [2022-07-12 15:25:55,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-07-12 15:25:55,823 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:25:55,824 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 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] [2022-07-12 15:25:55,957 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 15:25:56,051 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 15:25:56,051 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 15:25:56,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:25:56,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1829345698, now seen corresponding path program 1 times [2022-07-12 15:25:56,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:25:56,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1260679967] [2022-07-12 15:25:56,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:25:56,058 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:25:56,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:25:56,060 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 15:25:56,062 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 15:26:03,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:26:04,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 5377 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:26:04,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:26:04,312 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2022-07-12 15:26:04,313 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:26:04,313 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:26:04,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1260679967] [2022-07-12 15:26:04,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1260679967] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:26:04,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:26:04,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:26:04,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838370304] [2022-07-12 15:26:04,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:26:04,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:26:04,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:26:04,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:26:04,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:26:04,315 INFO L87 Difference]: Start difference. First operand 16374 states and 22564 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, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-12 15:26:05,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:26:05,460 INFO L93 Difference]: Finished difference Result 32817 states and 45211 transitions. [2022-07-12 15:26:05,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:26:05,461 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, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 197 [2022-07-12 15:26:05,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:26:05,561 INFO L225 Difference]: With dead ends: 32817 [2022-07-12 15:26:05,562 INFO L226 Difference]: Without dead ends: 24416 [2022-07-12 15:26:05,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 195 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 15:26:05,606 INFO L413 NwaCegarLoop]: 6424 mSDtfsCounter, 3151 mSDsluCounter, 3268 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3151 SdHoareTripleChecker+Valid, 9692 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 15:26:05,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3151 Valid, 9692 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 15:26:05,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24416 states. [2022-07-12 15:26:06,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24416 to 24378. [2022-07-12 15:26:06,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24378 states, 16780 states have (on average 1.2650178784266985) internal successors, (21227), 17343 states have internal predecessors, (21227), 6176 states have call successors, (6176), 1435 states have call predecessors, (6176), 1419 states have return successors, (6187), 5881 states have call predecessors, (6187), 6172 states have call successors, (6187) [2022-07-12 15:26:06,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24378 states to 24378 states and 33590 transitions. [2022-07-12 15:26:06,545 INFO L78 Accepts]: Start accepts. Automaton has 24378 states and 33590 transitions. Word has length 197 [2022-07-12 15:26:06,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:26:06,546 INFO L495 AbstractCegarLoop]: Abstraction has 24378 states and 33590 transitions. [2022-07-12 15:26:06,546 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, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-12 15:26:06,546 INFO L276 IsEmpty]: Start isEmpty. Operand 24378 states and 33590 transitions. [2022-07-12 15:26:06,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-07-12 15:26:06,558 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:26:06,558 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 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] [2022-07-12 15:26:06,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-12 15:26:06,767 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 15:26:06,768 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 15:26:06,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:26:06,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1209246207, now seen corresponding path program 1 times [2022-07-12 15:26:06,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:26:06,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [905009609] [2022-07-12 15:26:06,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:26:06,774 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:26:06,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:26:06,775 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 15:26:06,776 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 15:26:13,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:26:14,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 5327 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:26:14,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:26:15,927 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2022-07-12 15:26:15,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:26:16,734 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2022-07-12 15:26:16,735 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:26:16,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [905009609] [2022-07-12 15:26:16,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [905009609] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:26:16,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:26:16,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:26:16,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116479717] [2022-07-12 15:26:16,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:26:16,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:26:16,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:26:16,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:26:16,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:26:16,737 INFO L87 Difference]: Start difference. First operand 24378 states and 33590 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-12 15:26:17,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:26:17,509 INFO L93 Difference]: Finished difference Result 24384 states and 33595 transitions. [2022-07-12 15:26:17,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:26:17,510 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 186 [2022-07-12 15:26:17,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:26:17,588 INFO L225 Difference]: With dead ends: 24384 [2022-07-12 15:26:17,588 INFO L226 Difference]: Without dead ends: 24382 [2022-07-12 15:26:17,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:26:17,602 INFO L413 NwaCegarLoop]: 3293 mSDtfsCounter, 3220 mSDsluCounter, 6567 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3227 SdHoareTripleChecker+Valid, 9860 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 15:26:17,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3227 Valid, 9860 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:26:17,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24382 states. [2022-07-12 15:26:18,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24382 to 24382. [2022-07-12 15:26:18,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24382 states, 16783 states have (on average 1.2649705058690341) internal successors, (21230), 17346 states have internal predecessors, (21230), 6176 states have call successors, (6176), 1436 states have call predecessors, (6176), 1420 states have return successors, (6187), 5881 states have call predecessors, (6187), 6172 states have call successors, (6187) [2022-07-12 15:26:18,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24382 states to 24382 states and 33593 transitions. [2022-07-12 15:26:18,439 INFO L78 Accepts]: Start accepts. Automaton has 24382 states and 33593 transitions. Word has length 186 [2022-07-12 15:26:18,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:26:18,440 INFO L495 AbstractCegarLoop]: Abstraction has 24382 states and 33593 transitions. [2022-07-12 15:26:18,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-12 15:26:18,440 INFO L276 IsEmpty]: Start isEmpty. Operand 24382 states and 33593 transitions. [2022-07-12 15:26:18,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-07-12 15:26:18,450 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:26:18,450 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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] [2022-07-12 15:26:18,595 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-12 15:26:18,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 15:26:18,664 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 15:26:18,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:26:18,664 INFO L85 PathProgramCache]: Analyzing trace with hash 410470082, now seen corresponding path program 1 times [2022-07-12 15:26:18,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:26:18,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1018551990] [2022-07-12 15:26:18,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:26:18,671 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:26:18,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:26:18,672 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 15:26:18,673 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 15:26:26,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:26:26,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 5384 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 15:26:26,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:26:26,733 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-07-12 15:26:26,733 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 15:26:26,733 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:26:26,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1018551990] [2022-07-12 15:26:26,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1018551990] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:26:26,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:26:26,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 15:26:26,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356341034] [2022-07-12 15:26:26,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:26:26,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 15:26:26,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:26:26,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 15:26:26,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 15:26:26,734 INFO L87 Difference]: Start difference. First operand 24382 states and 33593 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, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-12 15:26:28,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:26:28,165 INFO L93 Difference]: Finished difference Result 48795 states and 67221 transitions. [2022-07-12 15:26:28,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 15:26:28,166 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, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 202 [2022-07-12 15:26:28,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:26:28,299 INFO L225 Difference]: With dead ends: 48795 [2022-07-12 15:26:28,300 INFO L226 Difference]: Without dead ends: 32386 [2022-07-12 15:26:28,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 200 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 15:26:28,369 INFO L413 NwaCegarLoop]: 6414 mSDtfsCounter, 3124 mSDsluCounter, 3266 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3124 SdHoareTripleChecker+Valid, 9680 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-12 15:26:28,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3124 Valid, 9680 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-12 15:26:28,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32386 states. [2022-07-12 15:26:29,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32386 to 32382. [2022-07-12 15:26:29,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32382 states, 22284 states have (on average 1.2649883324358284) internal successors, (28189), 23030 states have internal predecessors, (28189), 8205 states have call successors, (8205), 1911 states have call predecessors, (8205), 1890 states have return successors, (8221), 7816 states have call predecessors, (8221), 8201 states have call successors, (8221) [2022-07-12 15:26:29,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32382 states to 32382 states and 44615 transitions. [2022-07-12 15:26:29,594 INFO L78 Accepts]: Start accepts. Automaton has 32382 states and 44615 transitions. Word has length 202 [2022-07-12 15:26:29,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:26:29,595 INFO L495 AbstractCegarLoop]: Abstraction has 32382 states and 44615 transitions. [2022-07-12 15:26:29,595 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, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-12 15:26:29,596 INFO L276 IsEmpty]: Start isEmpty. Operand 32382 states and 44615 transitions. [2022-07-12 15:26:29,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-07-12 15:26:29,605 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:26:29,605 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 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] [2022-07-12 15:26:29,726 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 15:26:29,819 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 15:26:29,820 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 15:26:29,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:26:29,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1309684103, now seen corresponding path program 1 times [2022-07-12 15:26:29,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:26:29,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2071791040] [2022-07-12 15:26:29,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:26:29,826 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:26:29,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:26:29,827 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 15:26:29,827 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 15:26:37,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:26:37,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 5334 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:26:37,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:26:39,270 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2022-07-12 15:26:39,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:26:40,111 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2022-07-12 15:26:40,112 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:26:40,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2071791040] [2022-07-12 15:26:40,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2071791040] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:26:40,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:26:40,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:26:40,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683009360] [2022-07-12 15:26:40,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:26:40,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:26:40,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:26:40,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:26:40,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:26:40,113 INFO L87 Difference]: Start difference. First operand 32382 states and 44615 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-12 15:26:41,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:26:41,165 INFO L93 Difference]: Finished difference Result 32388 states and 44620 transitions. [2022-07-12 15:26:41,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:26:41,166 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 191 [2022-07-12 15:26:41,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:26:41,277 INFO L225 Difference]: With dead ends: 32388 [2022-07-12 15:26:41,278 INFO L226 Difference]: Without dead ends: 32386 [2022-07-12 15:26:41,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:26:41,295 INFO L413 NwaCegarLoop]: 3293 mSDtfsCounter, 3220 mSDsluCounter, 6567 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3226 SdHoareTripleChecker+Valid, 9860 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 15:26:41,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3226 Valid, 9860 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:26:41,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32386 states. [2022-07-12 15:26:42,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32386 to 32386. [2022-07-12 15:26:42,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32386 states, 22287 states have (on average 1.2649526629873917) internal successors, (28192), 23033 states have internal predecessors, (28192), 8205 states have call successors, (8205), 1912 states have call predecessors, (8205), 1891 states have return successors, (8221), 7816 states have call predecessors, (8221), 8201 states have call successors, (8221) [2022-07-12 15:26:42,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32386 states to 32386 states and 44618 transitions. [2022-07-12 15:26:42,345 INFO L78 Accepts]: Start accepts. Automaton has 32386 states and 44618 transitions. Word has length 191 [2022-07-12 15:26:42,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:26:42,345 INFO L495 AbstractCegarLoop]: Abstraction has 32386 states and 44618 transitions. [2022-07-12 15:26:42,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-12 15:26:42,346 INFO L276 IsEmpty]: Start isEmpty. Operand 32386 states and 44618 transitions. [2022-07-12 15:26:42,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-07-12 15:26:42,353 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:26:42,354 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 7, 6, 6, 6, 6, 6, 6, 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] [2022-07-12 15:26:42,502 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 15:26:42,575 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 15:26:42,575 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 15:26:42,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:26:42,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1832571201, now seen corresponding path program 1 times [2022-07-12 15:26:42,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:26:42,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1087673452] [2022-07-12 15:26:42,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:26:42,581 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:26:42,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:26:42,582 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 15:26:42,583 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 15:26:49,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:26:50,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 5341 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:26:50,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:26:51,726 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-07-12 15:26:51,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:26:52,513 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-07-12 15:26:52,513 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:26:52,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1087673452] [2022-07-12 15:26:52,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1087673452] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:26:52,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:26:52,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:26:52,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965736145] [2022-07-12 15:26:52,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:26:52,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:26:52,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:26:52,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:26:52,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:26:52,514 INFO L87 Difference]: Start difference. First operand 32386 states and 44618 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-12 15:26:53,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:26:53,454 INFO L93 Difference]: Finished difference Result 32392 states and 44623 transitions. [2022-07-12 15:26:53,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:26:53,454 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 196 [2022-07-12 15:26:53,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:26:53,557 INFO L225 Difference]: With dead ends: 32392 [2022-07-12 15:26:53,557 INFO L226 Difference]: Without dead ends: 32390 [2022-07-12 15:26:53,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:26:53,573 INFO L413 NwaCegarLoop]: 3293 mSDtfsCounter, 3220 mSDsluCounter, 6567 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3225 SdHoareTripleChecker+Valid, 9860 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 15:26:53,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3225 Valid, 9860 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:26:53,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32390 states. [2022-07-12 15:26:54,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32390 to 32390. [2022-07-12 15:26:54,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32390 states, 22290 states have (on average 1.2649170031404218) internal successors, (28195), 23036 states have internal predecessors, (28195), 8205 states have call successors, (8205), 1913 states have call predecessors, (8205), 1892 states have return successors, (8221), 7816 states have call predecessors, (8221), 8201 states have call successors, (8221) [2022-07-12 15:26:54,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32390 states to 32390 states and 44621 transitions. [2022-07-12 15:26:54,711 INFO L78 Accepts]: Start accepts. Automaton has 32390 states and 44621 transitions. Word has length 196 [2022-07-12 15:26:54,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:26:54,711 INFO L495 AbstractCegarLoop]: Abstraction has 32390 states and 44621 transitions. [2022-07-12 15:26:54,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-12 15:26:54,712 INFO L276 IsEmpty]: Start isEmpty. Operand 32390 states and 44621 transitions. [2022-07-12 15:26:54,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-07-12 15:26:54,720 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:26:54,720 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 8, 7, 7, 6, 6, 6, 6, 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] [2022-07-12 15:26:54,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-12 15:26:54,921 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 15:26:54,921 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 15:26:54,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:26:54,922 INFO L85 PathProgramCache]: Analyzing trace with hash 944950343, now seen corresponding path program 1 times [2022-07-12 15:26:54,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:26:54,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [196022689] [2022-07-12 15:26:54,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:26:54,928 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:26:54,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:26:54,929 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 15:26:54,929 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 15:27:01,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:02,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 5348 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:27:02,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:27:03,874 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2022-07-12 15:27:03,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:27:04,764 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2022-07-12 15:27:04,765 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:27:04,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [196022689] [2022-07-12 15:27:04,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [196022689] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:27:04,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:27:04,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:27:04,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515740097] [2022-07-12 15:27:04,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:27:04,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:27:04,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:27:04,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:27:04,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:27:04,766 INFO L87 Difference]: Start difference. First operand 32390 states and 44621 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-12 15:27:05,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:27:05,609 INFO L93 Difference]: Finished difference Result 32396 states and 44626 transitions. [2022-07-12 15:27:05,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:27:05,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 201 [2022-07-12 15:27:05,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:27:05,719 INFO L225 Difference]: With dead ends: 32396 [2022-07-12 15:27:05,719 INFO L226 Difference]: Without dead ends: 32394 [2022-07-12 15:27:05,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:27:05,743 INFO L413 NwaCegarLoop]: 3293 mSDtfsCounter, 3220 mSDsluCounter, 6567 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3224 SdHoareTripleChecker+Valid, 9860 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 15:27:05,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3224 Valid, 9860 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:27:05,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32394 states. [2022-07-12 15:27:06,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32394 to 32394. [2022-07-12 15:27:06,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32394 states, 22293 states have (on average 1.264881352891042) internal successors, (28198), 23039 states have internal predecessors, (28198), 8205 states have call successors, (8205), 1914 states have call predecessors, (8205), 1893 states have return successors, (8221), 7816 states have call predecessors, (8221), 8201 states have call successors, (8221) [2022-07-12 15:27:06,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32394 states to 32394 states and 44624 transitions. [2022-07-12 15:27:06,940 INFO L78 Accepts]: Start accepts. Automaton has 32394 states and 44624 transitions. Word has length 201 [2022-07-12 15:27:06,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:27:06,941 INFO L495 AbstractCegarLoop]: Abstraction has 32394 states and 44624 transitions. [2022-07-12 15:27:06,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-12 15:27:06,941 INFO L276 IsEmpty]: Start isEmpty. Operand 32394 states and 44624 transitions. [2022-07-12 15:27:06,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-07-12 15:27:06,950 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:27:06,950 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 8, 8, 6, 6, 6, 6, 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] [2022-07-12 15:27:07,073 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 15:27:07,150 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 15:27:07,151 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 15:27:07,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:27:07,151 INFO L85 PathProgramCache]: Analyzing trace with hash -739280001, now seen corresponding path program 1 times [2022-07-12 15:27:07,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:27:07,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [115224726] [2022-07-12 15:27:07,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:27:07,156 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:27:07,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:27:07,158 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 15:27:07,158 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 15:27:13,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:14,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 5355 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:27:14,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:27:15,850 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2022-07-12 15:27:15,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:27:16,538 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2022-07-12 15:27:16,538 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:27:16,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [115224726] [2022-07-12 15:27:16,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [115224726] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:27:16,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:27:16,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:27:16,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941036539] [2022-07-12 15:27:16,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:27:16,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:27:16,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:27:16,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:27:16,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:27:16,539 INFO L87 Difference]: Start difference. First operand 32394 states and 44624 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-12 15:27:17,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:27:17,653 INFO L93 Difference]: Finished difference Result 32400 states and 44629 transitions. [2022-07-12 15:27:17,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:27:17,654 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 206 [2022-07-12 15:27:17,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:27:17,759 INFO L225 Difference]: With dead ends: 32400 [2022-07-12 15:27:17,759 INFO L226 Difference]: Without dead ends: 32398 [2022-07-12 15:27:17,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:27:17,777 INFO L413 NwaCegarLoop]: 3293 mSDtfsCounter, 3220 mSDsluCounter, 6567 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3223 SdHoareTripleChecker+Valid, 9860 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 15:27:17,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3223 Valid, 9860 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:27:17,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32398 states. [2022-07-12 15:27:18,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32398 to 32398. [2022-07-12 15:27:18,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32398 states, 22296 states have (on average 1.2648457122353784) internal successors, (28201), 23042 states have internal predecessors, (28201), 8205 states have call successors, (8205), 1915 states have call predecessors, (8205), 1894 states have return successors, (8221), 7816 states have call predecessors, (8221), 8201 states have call successors, (8221) [2022-07-12 15:27:18,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32398 states to 32398 states and 44627 transitions. [2022-07-12 15:27:18,931 INFO L78 Accepts]: Start accepts. Automaton has 32398 states and 44627 transitions. Word has length 206 [2022-07-12 15:27:18,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:27:18,932 INFO L495 AbstractCegarLoop]: Abstraction has 32398 states and 44627 transitions. [2022-07-12 15:27:18,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-12 15:27:18,932 INFO L276 IsEmpty]: Start isEmpty. Operand 32398 states and 44627 transitions. [2022-07-12 15:27:18,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-07-12 15:27:18,940 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:27:18,941 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 9, 6, 6, 6, 6, 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] [2022-07-12 15:27:19,068 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-07-12 15:27:19,141 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 15:27:19,141 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 15:27:19,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:27:19,142 INFO L85 PathProgramCache]: Analyzing trace with hash 429172487, now seen corresponding path program 1 times [2022-07-12 15:27:19,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:27:19,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [313155160] [2022-07-12 15:27:19,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:27:19,147 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:27:19,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:27:19,149 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 15:27:19,150 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 15:27:25,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:26,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 5362 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 15:27:26,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 15:27:27,814 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2022-07-12 15:27:27,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 15:27:28,514 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2022-07-12 15:27:28,514 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 15:27:28,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [313155160] [2022-07-12 15:27:28,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [313155160] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-12 15:27:28,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 15:27:28,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-12 15:27:28,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996397843] [2022-07-12 15:27:28,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:27:28,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:27:28,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 15:27:28,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:27:28,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:27:28,516 INFO L87 Difference]: Start difference. First operand 32398 states and 44627 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-12 15:27:29,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:27:29,564 INFO L93 Difference]: Finished difference Result 32404 states and 44632 transitions. [2022-07-12 15:27:29,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 15:27:29,565 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 211 [2022-07-12 15:27:29,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:27:29,649 INFO L225 Difference]: With dead ends: 32404 [2022-07-12 15:27:29,649 INFO L226 Difference]: Without dead ends: 32402 [2022-07-12 15:27:29,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-12 15:27:29,660 INFO L413 NwaCegarLoop]: 3293 mSDtfsCounter, 3220 mSDsluCounter, 6567 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3222 SdHoareTripleChecker+Valid, 9860 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 15:27:29,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3222 Valid, 9860 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 15:27:29,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32402 states. [2022-07-12 15:27:30,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32402 to 32402. [2022-07-12 15:27:30,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32402 states, 22299 states have (on average 1.264810081169559) internal successors, (28204), 23045 states have internal predecessors, (28204), 8205 states have call successors, (8205), 1916 states have call predecessors, (8205), 1895 states have return successors, (8221), 7816 states have call predecessors, (8221), 8201 states have call successors, (8221) [2022-07-12 15:27:30,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32402 states to 32402 states and 44630 transitions. [2022-07-12 15:27:30,738 INFO L78 Accepts]: Start accepts. Automaton has 32402 states and 44630 transitions. Word has length 211 [2022-07-12 15:27:30,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:27:30,738 INFO L495 AbstractCegarLoop]: Abstraction has 32402 states and 44630 transitions. [2022-07-12 15:27:30,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-12 15:27:30,739 INFO L276 IsEmpty]: Start isEmpty. Operand 32402 states and 44630 transitions. [2022-07-12 15:27:30,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-07-12 15:27:30,752 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:27:30,752 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 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] [2022-07-12 15:27:30,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-12 15:27:30,971 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 15:27:30,971 INFO L420 AbstractCegarLoop]: === Iteration 16 === 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 15:27:30,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:27:30,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1312864120, now seen corresponding path program 1 times [2022-07-12 15:27:30,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 15:27:30,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [617526216] [2022-07-12 15:27:30,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:27:30,977 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 15:27:30,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 15:27:30,979 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 15:27:30,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process