./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 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-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-?-3598765 [2022-07-21 13:57:07,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 13:57:07,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 13:57:07,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 13:57:07,111 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 13:57:07,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 13:57:07,117 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 13:57:07,119 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 13:57:07,121 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 13:57:07,124 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 13:57:07,125 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 13:57:07,126 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 13:57:07,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 13:57:07,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 13:57:07,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 13:57:07,132 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 13:57:07,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 13:57:07,135 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 13:57:07,137 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 13:57:07,142 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 13:57:07,143 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 13:57:07,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 13:57:07,145 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 13:57:07,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 13:57:07,147 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 13:57:07,152 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 13:57:07,152 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 13:57:07,153 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 13:57:07,153 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 13:57:07,153 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 13:57:07,154 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 13:57:07,154 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 13:57:07,156 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 13:57:07,156 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 13:57:07,157 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 13:57:07,158 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 13:57:07,158 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 13:57:07,158 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 13:57:07,158 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 13:57:07,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 13:57:07,159 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 13:57:07,160 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 13:57:07,165 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 13:57:07,183 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 13:57:07,184 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 13:57:07,184 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 13:57:07,184 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 13:57:07,185 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 13:57:07,185 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 13:57:07,185 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 13:57:07,185 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 13:57:07,186 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 13:57:07,186 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 13:57:07,186 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 13:57:07,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 13:57:07,187 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 13:57:07,187 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 13:57:07,187 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 13:57:07,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 13:57:07,194 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 13:57:07,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 13:57:07,195 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 13:57:07,195 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 13:57:07,195 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 13:57:07,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 13:57:07,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 13:57:07,195 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 13:57:07,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 13:57:07,196 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 13:57:07,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 13:57:07,196 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 13:57:07,196 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 13:57:07,196 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 13:57:07,197 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03e2d0e28997af6c53edeab79acb28db60116030b3545ebb50af81c3e69fe889 [2022-07-21 13:57:07,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 13:57:07,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 13:57:07,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 13:57:07,507 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 13:57:07,508 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 13:57:07,509 INFO L432 ainManager$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 [2022-07-21 13:57:07,570 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcc6fe279/ccda43f39c4642af90ffdeb6013fd770/FLAGd38f54f25 [2022-07-21 13:57:08,366 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 13:57:08,366 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 [2022-07-21 13:57:08,417 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcc6fe279/ccda43f39c4642af90ffdeb6013fd770/FLAGd38f54f25 [2022-07-21 13:57:08,601 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcc6fe279/ccda43f39c4642af90ffdeb6013fd770 [2022-07-21 13:57:08,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 13:57:08,604 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 13:57:08,606 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 13:57:08,606 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 13:57:08,608 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 13:57:08,608 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:57:08" (1/1) ... [2022-07-21 13:57:08,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1afb5854 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:08, skipping insertion in model container [2022-07-21 13:57:08,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:57:08" (1/1) ... [2022-07-21 13:57:08,613 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 13:57:08,743 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 13:57:12,352 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] [2022-07-21 13:57:12,354 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] [2022-07-21 13:57:12,359 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] [2022-07-21 13:57:12,360 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] [2022-07-21 13:57:12,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 13:57:12,451 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 13:57:12,668 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) [2022-07-21 13:57:12,675 INFO L158 Benchmark]: Toolchain (without parser) took 4069.58ms. Allocated memory was 58.7MB in the beginning and 159.4MB in the end (delta: 100.7MB). Free memory was 28.1MB in the beginning and 83.5MB in the end (delta: -55.3MB). Peak memory consumption was 65.5MB. Max. memory is 16.1GB. [2022-07-21 13:57:12,676 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 58.7MB. Free memory was 40.6MB in the beginning and 40.6MB in the end (delta: 44.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 13:57:12,677 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4067.19ms. Allocated memory was 58.7MB in the beginning and 159.4MB in the end (delta: 100.7MB). Free memory was 28.0MB in the beginning and 83.5MB in the end (delta: -55.5MB). Peak memory consumption was 65.5MB. Max. memory is 16.1GB. [2022-07-21 13:57:12,678 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 58.7MB. Free memory was 40.6MB in the beginning and 40.6MB in the end (delta: 44.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4067.19ms. Allocated memory was 58.7MB in the beginning and 159.4MB in the end (delta: 100.7MB). Free memory was 28.0MB in the beginning and 83.5MB in the end (delta: -55.5MB). Peak memory consumption was 65.5MB. 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-?-3598765 [2022-07-21 13:57:14,288 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 13:57:14,291 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 13:57:14,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 13:57:14,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 13:57:14,323 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 13:57:14,325 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 13:57:14,327 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 13:57:14,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 13:57:14,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 13:57:14,333 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 13:57:14,334 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 13:57:14,334 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 13:57:14,336 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 13:57:14,336 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 13:57:14,340 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 13:57:14,341 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 13:57:14,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 13:57:14,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 13:57:14,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 13:57:14,348 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 13:57:14,349 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 13:57:14,350 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 13:57:14,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 13:57:14,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 13:57:14,356 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 13:57:14,356 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 13:57:14,357 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 13:57:14,357 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 13:57:14,358 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 13:57:14,358 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 13:57:14,358 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 13:57:14,360 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 13:57:14,360 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 13:57:14,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 13:57:14,361 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 13:57:14,362 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 13:57:14,362 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 13:57:14,362 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 13:57:14,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 13:57:14,363 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 13:57:14,364 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 13:57:14,368 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 13:57:14,392 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 13:57:14,392 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 13:57:14,392 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 13:57:14,392 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 13:57:14,393 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 13:57:14,393 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 13:57:14,394 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 13:57:14,394 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 13:57:14,394 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 13:57:14,395 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 13:57:14,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 13:57:14,395 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 13:57:14,395 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 13:57:14,396 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 13:57:14,409 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 13:57:14,409 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 13:57:14,409 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 13:57:14,409 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 13:57:14,409 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 13:57:14,410 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 13:57:14,410 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 13:57:14,410 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 13:57:14,410 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 13:57:14,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 13:57:14,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 13:57:14,411 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 13:57:14,411 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 13:57:14,411 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 13:57:14,411 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 13:57:14,411 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 13:57:14,412 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 13:57:14,412 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 13:57:14,412 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 13:57:14,412 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03e2d0e28997af6c53edeab79acb28db60116030b3545ebb50af81c3e69fe889 [2022-07-21 13:57:14,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 13:57:14,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 13:57:14,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 13:57:14,713 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 13:57:14,713 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 13:57:14,714 INFO L432 ainManager$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 [2022-07-21 13:57:14,779 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2885bc8b4/02910182d5bd4734b5329aad73957603/FLAGe3ac4cf51 [2022-07-21 13:57:15,406 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 13:57:15,407 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 [2022-07-21 13:57:15,453 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2885bc8b4/02910182d5bd4734b5329aad73957603/FLAGe3ac4cf51 [2022-07-21 13:57:15,524 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2885bc8b4/02910182d5bd4734b5329aad73957603 [2022-07-21 13:57:15,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 13:57:15,527 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 13:57:15,529 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 13:57:15,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 13:57:15,532 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 13:57:15,532 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:57:15" (1/1) ... [2022-07-21 13:57:15,533 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e89efa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:15, skipping insertion in model container [2022-07-21 13:57:15,533 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:57:15" (1/1) ... [2022-07-21 13:57:15,537 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 13:57:15,662 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 13:57:18,744 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] [2022-07-21 13:57:18,747 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] [2022-07-21 13:57:18,747 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] [2022-07-21 13:57:18,748 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] [2022-07-21 13:57:18,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 13:57:18,883 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 13:57:18,982 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 13:57:19,282 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] [2022-07-21 13:57:19,283 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] [2022-07-21 13:57:19,283 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] [2022-07-21 13:57:19,283 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] [2022-07-21 13:57:19,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 13:57:19,337 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 13:57:19,628 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] [2022-07-21 13:57:19,628 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] [2022-07-21 13:57:19,629 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] [2022-07-21 13:57:19,629 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] [2022-07-21 13:57:19,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 13:57:19,830 INFO L208 MainTranslator]: Completed translation [2022-07-21 13:57:19,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:19 WrapperNode [2022-07-21 13:57:19,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 13:57:19,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 13:57:19,831 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 13:57:19,832 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 13:57:19,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:19" (1/1) ... [2022-07-21 13:57:19,913 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:19" (1/1) ... [2022-07-21 13:57:20,164 INFO L137 Inliner]: procedures = 593, calls = 6324, calls flagged for inlining = 254, calls inlined = 233, statements flattened = 8470 [2022-07-21 13:57:20,166 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 13:57:20,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 13:57:20,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 13:57:20,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 13:57:20,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:19" (1/1) ... [2022-07-21 13:57:20,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:19" (1/1) ... [2022-07-21 13:57:20,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:19" (1/1) ... [2022-07-21 13:57:20,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:19" (1/1) ... [2022-07-21 13:57:20,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:19" (1/1) ... [2022-07-21 13:57:20,409 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:19" (1/1) ... [2022-07-21 13:57:20,444 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:19" (1/1) ... [2022-07-21 13:57:20,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 13:57:20,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 13:57:20,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 13:57:20,484 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 13:57:20,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:19" (1/1) ... [2022-07-21 13:57:20,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 13:57:20,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 13:57:20,533 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 13:57:20,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 13:57:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_le_to_cpu [2022-07-21 13:57:20,616 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_le_to_cpu [2022-07-21 13:57:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_eth_tx_timeout [2022-07-21 13:57:20,616 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_eth_tx_timeout [2022-07-21 13:57:20,617 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-07-21 13:57:20,617 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-21 13:57:20,617 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-21 13:57:20,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 13:57:20,617 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 13:57:20,617 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_trigger [2022-07-21 13:57:20,617 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_trigger [2022-07-21 13:57:20,617 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-21 13:57:20,618 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-21 13:57:20,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 13:57:20,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 13:57:20,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_slock_of_NOT_ARG_SIGN [2022-07-21 13:57:20,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_slock_of_NOT_ARG_SIGN [2022-07-21 13:57:20,618 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_mib_mode_helper [2022-07-21 13:57:20,618 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_mib_mode_helper [2022-07-21 13:57:20,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 13:57:20,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 13:57:20,619 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-21 13:57:20,619 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-21 13:57:20,619 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-07-21 13:57:20,619 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-07-21 13:57:20,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2022-07-21 13:57:20,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2022-07-21 13:57:20,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_slock_of_NOT_ARG_SIGN [2022-07-21 13:57:20,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_slock_of_NOT_ARG_SIGN [2022-07-21 13:57:20,619 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_request [2022-07-21 13:57:20,620 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_request [2022-07-21 13:57:20,620 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_cpu_to_le [2022-07-21 13:57:20,620 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_cpu_to_le [2022-07-21 13:57:20,620 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-21 13:57:20,620 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_get_state [2022-07-21 13:57:20,620 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_get_state [2022-07-21 13:57:20,620 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-21 13:57:20,620 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-21 13:57:20,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-21 13:57:20,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-21 13:57:20,621 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-21 13:57:20,621 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-21 13:57:20,621 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-21 13:57:20,621 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-21 13:57:20,621 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_release [2022-07-21 13:57:20,621 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_release [2022-07-21 13:57:20,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-21 13:57:20,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-21 13:57:20,622 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-21 13:57:20,622 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-21 13:57:20,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 13:57:20,622 INFO L130 BoogieDeclarations]: Found specification of procedure send_simple_event [2022-07-21 13:57:20,622 INFO L138 BoogieDeclarations]: Found implementation of procedure send_simple_event [2022-07-21 13:57:20,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-21 13:57:20,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 13:57:20,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-21 13:57:20,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-21 13:57:20,623 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-21 13:57:20,623 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-21 13:57:20,623 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-21 13:57:20,623 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-21 13:57:20,623 INFO L130 BoogieDeclarations]: Found specification of procedure send_formatted_event [2022-07-21 13:57:20,623 INFO L138 BoogieDeclarations]: Found implementation of procedure send_formatted_event [2022-07-21 13:57:20,623 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set [2022-07-21 13:57:20,623 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set [2022-07-21 13:57:20,624 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-21 13:57:20,624 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-21 13:57:20,624 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_reset [2022-07-21 13:57:20,624 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_reset [2022-07-21 13:57:20,624 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-21 13:57:20,624 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-21 13:57:20,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-07-21 13:57:20,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-07-21 13:57:20,624 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-07-21 13:57:20,625 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-07-21 13:57:20,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-21 13:57:20,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-21 13:57:20,625 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-21 13:57:20,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-21 13:57:20,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 13:57:20,625 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 13:57:20,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-21 13:57:20,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-21 13:57:20,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-21 13:57:20,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-21 13:57:20,626 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_open [2022-07-21 13:57:20,626 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_open [2022-07-21 13:57:20,626 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_resume [2022-07-21 13:57:20,626 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_resume [2022-07-21 13:57:20,626 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-21 13:57:20,626 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-21 13:57:20,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-21 13:57:20,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-21 13:57:20,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 13:57:20,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-21 13:57:20,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-21 13:57:20,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-21 13:57:20,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-21 13:57:20,627 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2022-07-21 13:57:20,627 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2022-07-21 13:57:20,628 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-07-21 13:57:20,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-07-21 13:57:20,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 13:57:20,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-21 13:57:20,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-21 13:57:20,628 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-21 13:57:20,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-21 13:57:20,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 13:57:20,643 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-21 13:57:20,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-21 13:57:20,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-21 13:57:20,644 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 13:57:20,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 13:57:20,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-21 13:57:20,644 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-07-21 13:57:20,644 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-07-21 13:57:20,644 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-21 13:57:20,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-21 13:57:20,645 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-21 13:57:20,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-21 13:57:20,645 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-21 13:57:20,645 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-21 13:57:20,645 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-21 13:57:20,645 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-21 13:57:20,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-21 13:57:20,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-21 13:57:20,645 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2022-07-21 13:57:20,646 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2022-07-21 13:57:20,646 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-21 13:57:20,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-21 13:57:20,646 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-21 13:57:20,646 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-21 13:57:20,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-21 13:57:20,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_prism54_module_exit_12_2 [2022-07-21 13:57:20,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_prism54_module_exit_12_2 [2022-07-21 13:57:20,646 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2022-07-21 13:57:20,647 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2022-07-21 13:57:20,647 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-07-21 13:57:20,647 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-07-21 13:57:20,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 13:57:20,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 13:57:20,647 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_send_event [2022-07-21 13:57:20,647 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_send_event [2022-07-21 13:57:20,647 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-21 13:57:20,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-21 13:57:20,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-21 13:57:20,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-21 13:57:20,648 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-21 13:57:20,648 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_clear_mac [2022-07-21 13:57:20,648 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_clear_mac [2022-07-21 13:57:20,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-21 13:57:20,648 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_wpa_bss_ie_get [2022-07-21 13:57:20,648 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_wpa_bss_ie_get [2022-07-21 13:57:20,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 13:57:20,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 13:57:20,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-21 13:57:20,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 13:57:20,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 13:57:20,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 13:57:20,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 13:57:20,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 13:57:20,649 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-21 13:57:20,649 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-21 13:57:20,649 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-21 13:57:20,650 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-21 13:57:20,650 INFO L130 BoogieDeclarations]: Found specification of procedure handle_request [2022-07-21 13:57:20,650 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_request [2022-07-21 13:57:20,650 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_bring_down [2022-07-21 13:57:20,650 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_bring_down [2022-07-21 13:57:20,650 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-07-21 13:57:20,650 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-07-21 13:57:20,650 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-21 13:57:20,650 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-21 13:57:20,650 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-21 13:57:20,651 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-21 13:57:20,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 13:57:20,651 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 13:57:20,651 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-21 13:57:20,651 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-21 13:57:20,651 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-07-21 13:57:20,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-07-21 13:57:20,651 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-21 13:57:20,651 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-21 13:57:20,652 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-21 13:57:20,652 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-21 13:57:20,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 13:57:20,652 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-21 13:57:20,652 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-21 13:57:20,652 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_set_state [2022-07-21 13:57:20,652 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_set_state [2022-07-21 13:57:20,652 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2022-07-21 13:57:20,652 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2022-07-21 13:57:20,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 13:57:20,653 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_varlen [2022-07-21 13:57:20,653 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_varlen [2022-07-21 13:57:20,653 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2022-07-21 13:57:20,653 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2022-07-21 13:57:20,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-21 13:57:20,653 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2022-07-21 13:57:20,653 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2022-07-21 13:57:20,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-21 13:57:20,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-21 13:57:20,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 13:57:20,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 13:57:20,654 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_close [2022-07-21 13:57:20,654 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_close [2022-07-21 13:57:20,654 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-07-21 13:57:20,654 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-07-21 13:57:20,654 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_get_request [2022-07-21 13:57:20,654 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_get_request [2022-07-21 13:57:20,654 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-21 13:57:20,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-21 13:57:20,655 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-21 13:57:20,655 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-21 13:57:20,655 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-21 13:57:20,655 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-21 13:57:20,655 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-21 13:57:20,655 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-21 13:57:20,655 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_remove [2022-07-21 13:57:20,655 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_remove [2022-07-21 13:57:20,655 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_w32_flush [2022-07-21 13:57:20,655 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_w32_flush [2022-07-21 13:57:20,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-21 13:57:20,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-21 13:57:20,656 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-21 13:57:20,656 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-21 13:57:20,656 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-07-21 13:57:20,656 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-07-21 13:57:20,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-21 13:57:20,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-21 13:57:20,656 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-21 13:57:20,657 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-21 13:57:20,657 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit_list [2022-07-21 13:57:20,657 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit_list [2022-07-21 13:57:20,657 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-21 13:57:20,657 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-21 13:57:20,657 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-21 13:57:20,657 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-21 13:57:20,657 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-21 13:57:20,657 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-21 13:57:20,658 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgmt_rx_fill [2022-07-21 13:57:20,658 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgmt_rx_fill [2022-07-21 13:57:20,658 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_transaction [2022-07-21 13:57:20,658 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_transaction [2022-07-21 13:57:20,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_61 [2022-07-21 13:57:20,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_61 [2022-07-21 13:57:20,658 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 13:57:20,658 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 13:57:20,658 INFO L130 BoogieDeclarations]: Found specification of procedure channel_of_freq [2022-07-21 13:57:20,658 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_of_freq [2022-07-21 13:57:20,659 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-21 13:57:20,659 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-21 13:57:20,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-21 13:57:20,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-21 13:57:20,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-21 13:57:20,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-21 13:57:20,659 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-07-21 13:57:20,659 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-07-21 13:57:20,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 13:57:20,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 13:57:20,660 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_free_memory [2022-07-21 13:57:20,660 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_free_memory [2022-07-21 13:57:20,660 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit [2022-07-21 13:57:20,660 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit [2022-07-21 13:57:20,660 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-07-21 13:57:20,660 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-07-21 13:57:20,660 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32s [2022-07-21 13:57:20,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32s [2022-07-21 13:57:20,660 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2022-07-21 13:57:20,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2022-07-21 13:57:20,661 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-21 13:57:20,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-21 13:57:20,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-21 13:57:20,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-21 13:57:20,661 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-07-21 13:57:20,661 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-07-21 13:57:20,661 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-07-21 13:57:20,661 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-07-21 13:57:20,661 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_in_queue [2022-07-21 13:57:20,662 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_in_queue [2022-07-21 13:57:20,662 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-21 13:57:20,662 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-21 13:57:20,662 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-21 13:57:20,662 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-21 13:57:20,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-21 13:57:20,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-21 13:57:20,662 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-07-21 13:57:20,662 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-07-21 13:57:20,662 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_disable_interrupts [2022-07-21 13:57:20,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_disable_interrupts [2022-07-21 13:57:21,480 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 13:57:21,483 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 13:57:25,439 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 13:58:20,251 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-21 13:58:23,792 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 13:58:23,822 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 13:58:23,822 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-21 13:58:23,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:58:23 BoogieIcfgContainer [2022-07-21 13:58:23,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 13:58:23,827 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 13:58:23,827 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 13:58:23,829 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 13:58:23,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:57:15" (1/3) ... [2022-07-21 13:58:23,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38f28760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:58:23, skipping insertion in model container [2022-07-21 13:58:23,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:19" (2/3) ... [2022-07-21 13:58:23,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38f28760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:58:23, skipping insertion in model container [2022-07-21 13:58:23,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:58:23" (3/3) ... [2022-07-21 13:58:23,832 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i [2022-07-21 13:58:23,855 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 13:58:23,855 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-21 13:58:23,927 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 13:58:23,931 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@53a591b, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3950fdc3 [2022-07-21 13:58:23,932 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-21 13:58:23,941 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) [2022-07-21 13:58:23,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-21 13:58:23,962 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:58:23,963 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] [2022-07-21 13:58:23,964 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:58:23,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:58:23,969 INFO L85 PathProgramCache]: Analyzing trace with hash 2143999495, now seen corresponding path program 1 times [2022-07-21 13:58:23,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:58:23,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1755334778] [2022-07-21 13:58:23,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:58:23,987 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:58:23,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:58:23,989 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 13:58:23,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 13:58:31,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:58:31,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 5202 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 13:58:31,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:58:32,031 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-07-21 13:58:32,031 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 13:58:32,031 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:58:32,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1755334778] [2022-07-21 13:58:32,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1755334778] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:58:32,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:58:32,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 13:58:32,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481590486] [2022-07-21 13:58:32,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:58:32,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 13:58:32,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:58:32,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 13:58:32,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 13:58:32,059 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) [2022-07-21 13:58:32,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:58:32,985 INFO L93 Difference]: Finished difference Result 6801 states and 9827 transitions. [2022-07-21 13:58:32,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 13:58:32,988 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 [2022-07-21 13:58:32,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:58:33,033 INFO L225 Difference]: With dead ends: 6801 [2022-07-21 13:58:33,034 INFO L226 Difference]: Without dead ends: 4399 [2022-07-21 13:58:33,056 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 [2022-07-21 13:58:33,063 INFO L413 NwaCegarLoop]: 3845 mSDtfsCounter, 2809 mSDsluCounter, 3275 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 [2022-07-21 13:58:33,065 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] [2022-07-21 13:58:33,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4399 states. [2022-07-21 13:58:33,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4399 to 4372. [2022-07-21 13:58:33,289 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) [2022-07-21 13:58:33,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4372 states to 4372 states and 6038 transitions. [2022-07-21 13:58:33,319 INFO L78 Accepts]: Start accepts. Automaton has 4372 states and 6038 transitions. Word has length 89 [2022-07-21 13:58:33,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:58:33,321 INFO L495 AbstractCegarLoop]: Abstraction has 4372 states and 6038 transitions. [2022-07-21 13:58:33,321 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) [2022-07-21 13:58:33,322 INFO L276 IsEmpty]: Start isEmpty. Operand 4372 states and 6038 transitions. [2022-07-21 13:58:33,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-21 13:58:33,328 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:58:33,330 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] [2022-07-21 13:58:33,456 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-21 13:58:33,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:58:33,552 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:58:33,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:58:33,553 INFO L85 PathProgramCache]: Analyzing trace with hash -926596189, now seen corresponding path program 1 times [2022-07-21 13:58:33,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:58:33,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [528539596] [2022-07-21 13:58:33,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:58:33,558 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:58:33,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:58:33,564 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 13:58:33,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 13:58:40,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:58:41,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 5158 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 13:58:41,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:58:41,586 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-07-21 13:58:41,586 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 13:58:41,586 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:58:41,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [528539596] [2022-07-21 13:58:41,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [528539596] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:58:41,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:58:41,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 13:58:41,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336513507] [2022-07-21 13:58:41,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:58:41,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 13:58:41,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:58:41,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 13:58:41,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 13:58:41,591 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) [2022-07-21 13:58:42,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:58:42,409 INFO L93 Difference]: Finished difference Result 12907 states and 17829 transitions. [2022-07-21 13:58:42,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 13:58:42,410 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 [2022-07-21 13:58:42,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:58:42,460 INFO L225 Difference]: With dead ends: 12907 [2022-07-21 13:58:42,461 INFO L226 Difference]: Without dead ends: 8552 [2022-07-21 13:58:42,486 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 [2022-07-21 13:58:42,490 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 [2022-07-21 13:58:42,491 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] [2022-07-21 13:58:42,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8552 states. [2022-07-21 13:58:42,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8552 to 8548. [2022-07-21 13:58:42,872 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) [2022-07-21 13:58:42,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8548 states to 8548 states and 11798 transitions. [2022-07-21 13:58:42,914 INFO L78 Accepts]: Start accepts. Automaton has 8548 states and 11798 transitions. Word has length 94 [2022-07-21 13:58:42,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:58:42,917 INFO L495 AbstractCegarLoop]: Abstraction has 8548 states and 11798 transitions. [2022-07-21 13:58:42,917 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) [2022-07-21 13:58:42,918 INFO L276 IsEmpty]: Start isEmpty. Operand 8548 states and 11798 transitions. [2022-07-21 13:58:42,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-21 13:58:42,920 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:58:42,920 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] [2022-07-21 13:58:43,072 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 13:58:43,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:58:43,135 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:58:43,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:58:43,136 INFO L85 PathProgramCache]: Analyzing trace with hash 463962046, now seen corresponding path program 1 times [2022-07-21 13:58:43,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:58:43,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1103305663] [2022-07-21 13:58:43,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:58:43,141 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:58:43,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:58:43,144 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 13:58:43,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 13:58:50,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:58:51,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 5196 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 13:58:51,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:58:51,326 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-07-21 13:58:51,326 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 13:58:51,327 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:58:51,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1103305663] [2022-07-21 13:58:51,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1103305663] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:58:51,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:58:51,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 13:58:51,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146994279] [2022-07-21 13:58:51,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:58:51,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 13:58:51,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:58:51,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 13:58:51,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 13:58:51,328 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) [2022-07-21 13:58:52,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:58:52,321 INFO L93 Difference]: Finished difference Result 24926 states and 34392 transitions. [2022-07-21 13:58:52,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 13:58:52,322 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 [2022-07-21 13:58:52,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:58:52,439 INFO L225 Difference]: With dead ends: 24926 [2022-07-21 13:58:52,439 INFO L226 Difference]: Without dead ends: 16395 [2022-07-21 13:58:52,490 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 [2022-07-21 13:58:52,493 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 [2022-07-21 13:58:52,494 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] [2022-07-21 13:58:52,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16395 states. [2022-07-21 13:58:53,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16395 to 16358. [2022-07-21 13:58:53,057 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) [2022-07-21 13:58:53,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16358 states to 16358 states and 22552 transitions. [2022-07-21 13:58:53,136 INFO L78 Accepts]: Start accepts. Automaton has 16358 states and 22552 transitions. Word has length 99 [2022-07-21 13:58:53,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:58:53,138 INFO L495 AbstractCegarLoop]: Abstraction has 16358 states and 22552 transitions. [2022-07-21 13:58:53,138 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) [2022-07-21 13:58:53,139 INFO L276 IsEmpty]: Start isEmpty. Operand 16358 states and 22552 transitions. [2022-07-21 13:58:53,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-07-21 13:58:53,148 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:58:53,149 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] [2022-07-21 13:58:53,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-21 13:58:53,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:58:53,363 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)] === [2022-07-21 13:58:53,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:58:53,364 INFO L85 PathProgramCache]: Analyzing trace with hash 836421759, now seen corresponding path program 1 times [2022-07-21 13:58:53,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:58:53,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [898279604] [2022-07-21 13:58:53,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:58:53,369 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:58:53,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:58:53,371 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 13:58:53,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-21 13:59:00,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:59:01,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 5299 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 13:59:01,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:59:02,704 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2022-07-21 13:59:02,704 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 13:59:02,704 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:59:02,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [898279604] [2022-07-21 13:59:02,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [898279604] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:59:02,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:59:02,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 13:59:02,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749887026] [2022-07-21 13:59:02,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:59:02,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:59:02,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:59:02,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:59:02,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:59:02,706 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) [2022-07-21 13:59:03,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:59:03,353 INFO L93 Difference]: Finished difference Result 16364 states and 22557 transitions. [2022-07-21 13:59:03,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 13:59:03,354 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 [2022-07-21 13:59:03,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:59:03,417 INFO L225 Difference]: With dead ends: 16364 [2022-07-21 13:59:03,417 INFO L226 Difference]: Without dead ends: 16362 [2022-07-21 13:59:03,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 13:59:03,430 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 [2022-07-21 13:59:03,431 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] [2022-07-21 13:59:03,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16362 states. [2022-07-21 13:59:03,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16362 to 16362. [2022-07-21 13:59:03,914 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) [2022-07-21 13:59:04,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16362 states to 16362 states and 22555 transitions. [2022-07-21 13:59:04,003 INFO L78 Accepts]: Start accepts. Automaton has 16362 states and 22555 transitions. Word has length 166 [2022-07-21 13:59:04,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:59:04,005 INFO L495 AbstractCegarLoop]: Abstraction has 16362 states and 22555 transitions. [2022-07-21 13:59:04,005 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) [2022-07-21 13:59:04,005 INFO L276 IsEmpty]: Start isEmpty. Operand 16362 states and 22555 transitions. [2022-07-21 13:59:04,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-07-21 13:59:04,011 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:59:04,012 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] [2022-07-21 13:59:04,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-21 13:59:04,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:59:04,219 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)] === [2022-07-21 13:59:04,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:59:04,219 INFO L85 PathProgramCache]: Analyzing trace with hash 449362951, now seen corresponding path program 1 times [2022-07-21 13:59:04,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:59:04,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1146368854] [2022-07-21 13:59:04,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:59:04,225 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:59:04,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:59:04,240 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 13:59:04,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-21 13:59:11,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:59:12,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 5306 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 13:59:12,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:59:13,858 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2022-07-21 13:59:13,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 13:59:14,707 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2022-07-21 13:59:14,708 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:59:14,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1146368854] [2022-07-21 13:59:14,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1146368854] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 13:59:14,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 13:59:14,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 13:59:14,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580040838] [2022-07-21 13:59:14,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:59:14,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:59:14,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:59:14,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:59:14,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 13:59:14,711 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) [2022-07-21 13:59:15,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:59:15,334 INFO L93 Difference]: Finished difference Result 16368 states and 22560 transitions. [2022-07-21 13:59:15,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 13:59:15,334 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 [2022-07-21 13:59:15,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:59:15,417 INFO L225 Difference]: With dead ends: 16368 [2022-07-21 13:59:15,418 INFO L226 Difference]: Without dead ends: 16366 [2022-07-21 13:59:15,431 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 [2022-07-21 13:59:15,432 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 [2022-07-21 13:59:15,433 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] [2022-07-21 13:59:15,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16366 states. [2022-07-21 13:59:15,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16366 to 16366. [2022-07-21 13:59:15,942 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) [2022-07-21 13:59:16,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16366 states to 16366 states and 22558 transitions. [2022-07-21 13:59:16,036 INFO L78 Accepts]: Start accepts. Automaton has 16366 states and 22558 transitions. Word has length 171 [2022-07-21 13:59:16,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:59:16,037 INFO L495 AbstractCegarLoop]: Abstraction has 16366 states and 22558 transitions. [2022-07-21 13:59:16,037 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) [2022-07-21 13:59:16,037 INFO L276 IsEmpty]: Start isEmpty. Operand 16366 states and 22558 transitions. [2022-07-21 13:59:16,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-07-21 13:59:16,044 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:59:16,044 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] [2022-07-21 13:59:16,208 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-07-21 13:59:16,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:59:16,259 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:59:16,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:59:16,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1338692927, now seen corresponding path program 1 times [2022-07-21 13:59:16,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:59:16,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1697719877] [2022-07-21 13:59:16,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:59:16,266 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:59:16,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:59:16,268 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 13:59:16,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-21 13:59:24,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:59:24,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 5313 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 13:59:24,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:59:25,965 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2022-07-21 13:59:25,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 13:59:26,769 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2022-07-21 13:59:26,769 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:59:26,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1697719877] [2022-07-21 13:59:26,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1697719877] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 13:59:26,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 13:59:26,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 13:59:26,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706763813] [2022-07-21 13:59:26,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:59:26,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:59:26,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:59:26,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:59:26,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 13:59:26,771 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) [2022-07-21 13:59:27,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:59:27,273 INFO L93 Difference]: Finished difference Result 16372 states and 22563 transitions. [2022-07-21 13:59:27,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 13:59:27,274 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 [2022-07-21 13:59:27,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:59:27,334 INFO L225 Difference]: With dead ends: 16372 [2022-07-21 13:59:27,334 INFO L226 Difference]: Without dead ends: 16370 [2022-07-21 13:59:27,345 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 [2022-07-21 13:59:27,346 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 [2022-07-21 13:59:27,347 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] [2022-07-21 13:59:27,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16370 states. [2022-07-21 13:59:27,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16370 to 16370. [2022-07-21 13:59:27,917 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) [2022-07-21 13:59:27,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16370 states to 16370 states and 22561 transitions. [2022-07-21 13:59:27,996 INFO L78 Accepts]: Start accepts. Automaton has 16370 states and 22561 transitions. Word has length 176 [2022-07-21 13:59:27,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:59:27,997 INFO L495 AbstractCegarLoop]: Abstraction has 16370 states and 22561 transitions. [2022-07-21 13:59:27,997 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) [2022-07-21 13:59:27,998 INFO L276 IsEmpty]: Start isEmpty. Operand 16370 states and 22561 transitions. [2022-07-21 13:59:28,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-07-21 13:59:28,006 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:59:28,006 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] [2022-07-21 13:59:28,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-21 13:59:28,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:59:28,231 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:59:28,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:59:28,232 INFO L85 PathProgramCache]: Analyzing trace with hash -186853689, now seen corresponding path program 1 times [2022-07-21 13:59:28,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:59:28,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684103282] [2022-07-21 13:59:28,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:59:28,238 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:59:28,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:59:28,241 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 13:59:28,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-21 13:59:36,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:59:36,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 5320 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 13:59:36,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:59:37,882 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2022-07-21 13:59:37,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 13:59:38,626 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2022-07-21 13:59:38,627 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:59:38,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684103282] [2022-07-21 13:59:38,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1684103282] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 13:59:38,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 13:59:38,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 13:59:38,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757080398] [2022-07-21 13:59:38,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:59:38,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:59:38,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:59:38,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:59:38,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 13:59:38,630 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) [2022-07-21 13:59:39,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:59:39,174 INFO L93 Difference]: Finished difference Result 16376 states and 22566 transitions. [2022-07-21 13:59:39,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 13:59:39,175 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 [2022-07-21 13:59:39,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:59:39,264 INFO L225 Difference]: With dead ends: 16376 [2022-07-21 13:59:39,264 INFO L226 Difference]: Without dead ends: 16374 [2022-07-21 13:59:39,275 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 [2022-07-21 13:59:39,276 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 [2022-07-21 13:59:39,276 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] [2022-07-21 13:59:39,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16374 states. [2022-07-21 13:59:39,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16374 to 16374. [2022-07-21 13:59:39,800 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) [2022-07-21 13:59:39,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16374 states to 16374 states and 22564 transitions. [2022-07-21 13:59:39,858 INFO L78 Accepts]: Start accepts. Automaton has 16374 states and 22564 transitions. Word has length 181 [2022-07-21 13:59:39,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:59:39,859 INFO L495 AbstractCegarLoop]: Abstraction has 16374 states and 22564 transitions. [2022-07-21 13:59:39,859 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) [2022-07-21 13:59:39,860 INFO L276 IsEmpty]: Start isEmpty. Operand 16374 states and 22564 transitions. [2022-07-21 13:59:39,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-07-21 13:59:39,866 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:59:39,866 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] [2022-07-21 13:59:39,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-21 13:59:40,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:59:40,087 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:59:40,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:59:40,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1829345698, now seen corresponding path program 1 times [2022-07-21 13:59:40,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:59:40,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1631958488] [2022-07-21 13:59:40,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:59:40,094 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:59:40,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:59:40,096 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 13:59:40,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-21 13:59:47,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:59:47,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 5377 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 13:59:47,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:59:48,088 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2022-07-21 13:59:48,088 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 13:59:48,088 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 13:59:48,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1631958488] [2022-07-21 13:59:48,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1631958488] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:59:48,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:59:48,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 13:59:48,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891057079] [2022-07-21 13:59:48,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:59:48,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 13:59:48,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 13:59:48,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 13:59:48,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 13:59:48,090 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) [2022-07-21 13:59:49,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:59:49,206 INFO L93 Difference]: Finished difference Result 32817 states and 45211 transitions. [2022-07-21 13:59:49,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 13:59:49,207 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 [2022-07-21 13:59:49,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:59:49,314 INFO L225 Difference]: With dead ends: 32817 [2022-07-21 13:59:49,314 INFO L226 Difference]: Without dead ends: 24416 [2022-07-21 13:59:49,362 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 [2022-07-21 13:59:49,362 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 [2022-07-21 13:59:49,363 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] [2022-07-21 13:59:49,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24416 states. [2022-07-21 13:59:50,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24416 to 24378. [2022-07-21 13:59:50,183 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) [2022-07-21 13:59:50,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24378 states to 24378 states and 33590 transitions. [2022-07-21 13:59:50,322 INFO L78 Accepts]: Start accepts. Automaton has 24378 states and 33590 transitions. Word has length 197 [2022-07-21 13:59:50,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:59:50,326 INFO L495 AbstractCegarLoop]: Abstraction has 24378 states and 33590 transitions. [2022-07-21 13:59:50,326 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) [2022-07-21 13:59:50,326 INFO L276 IsEmpty]: Start isEmpty. Operand 24378 states and 33590 transitions. [2022-07-21 13:59:50,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-07-21 13:59:50,335 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:59:50,335 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] [2022-07-21 13:59:50,506 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-21 13:59:50,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 13:59:50,551 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 13:59:50,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:59:50,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1209246207, now seen corresponding path program 1 times [2022-07-21 13:59:50,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 13:59:50,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1969669555] [2022-07-21 13:59:50,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:59:50,558 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 13:59:50,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 13:59:50,564 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 13:59:50,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-21 13:59:58,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:59:58,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 5327 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 13:59:58,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:59:59,979 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2022-07-21 13:59:59,980 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 14:00:00,791 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2022-07-21 14:00:00,792 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 14:00:00,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1969669555] [2022-07-21 14:00:00,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1969669555] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 14:00:00,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 14:00:00,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 14:00:00,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253590216] [2022-07-21 14:00:00,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:00:00,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 14:00:00,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 14:00:00,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 14:00:00,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 14:00:00,793 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) [2022-07-21 14:00:01,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:00:01,558 INFO L93 Difference]: Finished difference Result 24384 states and 33595 transitions. [2022-07-21 14:00:01,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 14:00:01,559 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 [2022-07-21 14:00:01,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:00:01,716 INFO L225 Difference]: With dead ends: 24384 [2022-07-21 14:00:01,716 INFO L226 Difference]: Without dead ends: 24382 [2022-07-21 14:00:01,737 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 [2022-07-21 14:00:01,739 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 [2022-07-21 14:00:01,739 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] [2022-07-21 14:00:01,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24382 states. [2022-07-21 14:00:02,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24382 to 24382. [2022-07-21 14:00:02,596 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) [2022-07-21 14:00:02,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24382 states to 24382 states and 33593 transitions. [2022-07-21 14:00:02,721 INFO L78 Accepts]: Start accepts. Automaton has 24382 states and 33593 transitions. Word has length 186 [2022-07-21 14:00:02,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:00:02,722 INFO L495 AbstractCegarLoop]: Abstraction has 24382 states and 33593 transitions. [2022-07-21 14:00:02,722 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) [2022-07-21 14:00:02,722 INFO L276 IsEmpty]: Start isEmpty. Operand 24382 states and 33593 transitions. [2022-07-21 14:00:02,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-07-21 14:00:02,731 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:00:02,731 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] [2022-07-21 14:00:02,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-21 14:00:02,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 14:00:02,951 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 14:00:02,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:00:02,952 INFO L85 PathProgramCache]: Analyzing trace with hash 410470082, now seen corresponding path program 1 times [2022-07-21 14:00:02,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:00:02,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1225256442] [2022-07-21 14:00:02,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:00:02,958 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:00:02,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:00:02,970 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 14:00:02,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-21 14:00:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:00:11,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 5384 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 14:00:11,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 14:00:11,685 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-07-21 14:00:11,685 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 14:00:11,686 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 14:00:11,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1225256442] [2022-07-21 14:00:11,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1225256442] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 14:00:11,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 14:00:11,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 14:00:11,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089424251] [2022-07-21 14:00:11,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:00:11,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 14:00:11,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 14:00:11,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 14:00:11,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 14:00:11,687 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) [2022-07-21 14:00:13,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:00:13,175 INFO L93 Difference]: Finished difference Result 48795 states and 67221 transitions. [2022-07-21 14:00:13,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 14:00:13,175 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 [2022-07-21 14:00:13,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:00:13,480 INFO L225 Difference]: With dead ends: 48795 [2022-07-21 14:00:13,480 INFO L226 Difference]: Without dead ends: 32386 [2022-07-21 14:00:13,533 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 [2022-07-21 14:00:13,534 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, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 14:00:13,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3124 Valid, 9680 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 14:00:13,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32386 states. [2022-07-21 14:00:14,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32386 to 32382. [2022-07-21 14:00:14,471 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) [2022-07-21 14:00:14,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32382 states to 32382 states and 44615 transitions. [2022-07-21 14:00:14,617 INFO L78 Accepts]: Start accepts. Automaton has 32382 states and 44615 transitions. Word has length 202 [2022-07-21 14:00:14,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:00:14,618 INFO L495 AbstractCegarLoop]: Abstraction has 32382 states and 44615 transitions. [2022-07-21 14:00:14,618 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) [2022-07-21 14:00:14,618 INFO L276 IsEmpty]: Start isEmpty. Operand 32382 states and 44615 transitions. [2022-07-21 14:00:14,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-07-21 14:00:14,626 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:00:14,626 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] [2022-07-21 14:00:14,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-21 14:00:14,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 14:00:14,839 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 14:00:14,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:00:14,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1309684103, now seen corresponding path program 1 times [2022-07-21 14:00:14,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:00:14,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [192277008] [2022-07-21 14:00:14,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:00:14,845 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:00:14,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:00:14,847 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 14:00:14,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-21 14:00:22,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:00:22,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 5334 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 14:00:22,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 14:00:24,526 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2022-07-21 14:00:24,526 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 14:00:25,399 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2022-07-21 14:00:25,400 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 14:00:25,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [192277008] [2022-07-21 14:00:25,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [192277008] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 14:00:25,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 14:00:25,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 14:00:25,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010489032] [2022-07-21 14:00:25,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:00:25,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 14:00:25,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 14:00:25,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 14:00:25,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 14:00:25,401 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) [2022-07-21 14:00:26,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:00:26,418 INFO L93 Difference]: Finished difference Result 32388 states and 44620 transitions. [2022-07-21 14:00:26,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 14:00:26,418 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 [2022-07-21 14:00:26,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:00:26,538 INFO L225 Difference]: With dead ends: 32388 [2022-07-21 14:00:26,538 INFO L226 Difference]: Without dead ends: 32386 [2022-07-21 14:00:26,562 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 [2022-07-21 14:00:26,563 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 [2022-07-21 14:00:26,563 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] [2022-07-21 14:00:26,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32386 states. [2022-07-21 14:00:27,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32386 to 32386. [2022-07-21 14:00:27,481 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) [2022-07-21 14:00:27,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32386 states to 32386 states and 44618 transitions. [2022-07-21 14:00:27,850 INFO L78 Accepts]: Start accepts. Automaton has 32386 states and 44618 transitions. Word has length 191 [2022-07-21 14:00:27,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:00:27,851 INFO L495 AbstractCegarLoop]: Abstraction has 32386 states and 44618 transitions. [2022-07-21 14:00:27,851 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) [2022-07-21 14:00:27,851 INFO L276 IsEmpty]: Start isEmpty. Operand 32386 states and 44618 transitions. [2022-07-21 14:00:27,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-07-21 14:00:27,860 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:00:27,861 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] [2022-07-21 14:00:27,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-21 14:00:28,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 14:00:28,077 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 14:00:28,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:00:28,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1832571201, now seen corresponding path program 1 times [2022-07-21 14:00:28,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:00:28,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1373764131] [2022-07-21 14:00:28,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:00:28,083 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:00:28,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:00:28,085 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 14:00:28,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-21 14:00:35,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:00:35,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 5341 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 14:00:35,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 14:00:37,695 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-07-21 14:00:37,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 14:00:38,607 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-07-21 14:00:38,607 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 14:00:38,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1373764131] [2022-07-21 14:00:38,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1373764131] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 14:00:38,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 14:00:38,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 14:00:38,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704922540] [2022-07-21 14:00:38,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:00:38,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 14:00:38,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 14:00:38,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 14:00:38,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 14:00:38,609 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) [2022-07-21 14:00:39,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:00:39,773 INFO L93 Difference]: Finished difference Result 32392 states and 44623 transitions. [2022-07-21 14:00:39,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 14:00:39,774 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 [2022-07-21 14:00:39,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:00:39,912 INFO L225 Difference]: With dead ends: 32392 [2022-07-21 14:00:39,913 INFO L226 Difference]: Without dead ends: 32390 [2022-07-21 14:00:39,930 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 [2022-07-21 14:00:39,931 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 [2022-07-21 14:00:39,931 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] [2022-07-21 14:00:39,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32390 states. [2022-07-21 14:00:40,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32390 to 32390. [2022-07-21 14:00:41,028 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) [2022-07-21 14:00:41,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32390 states to 32390 states and 44621 transitions. [2022-07-21 14:00:41,200 INFO L78 Accepts]: Start accepts. Automaton has 32390 states and 44621 transitions. Word has length 196 [2022-07-21 14:00:41,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:00:41,201 INFO L495 AbstractCegarLoop]: Abstraction has 32390 states and 44621 transitions. [2022-07-21 14:00:41,201 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) [2022-07-21 14:00:41,201 INFO L276 IsEmpty]: Start isEmpty. Operand 32390 states and 44621 transitions. [2022-07-21 14:00:41,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-07-21 14:00:41,212 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:00:41,212 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] [2022-07-21 14:00:41,352 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-21 14:00:41,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 14:00:41,432 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 14:00:41,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:00:41,433 INFO L85 PathProgramCache]: Analyzing trace with hash 944950343, now seen corresponding path program 1 times [2022-07-21 14:00:41,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:00:41,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [577990670] [2022-07-21 14:00:41,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:00:41,441 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:00:41,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:00:41,444 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 14:00:41,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-21 14:00:48,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:00:49,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 5348 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 14:00:49,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 14:00:50,773 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2022-07-21 14:00:50,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 14:00:51,625 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2022-07-21 14:00:51,625 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 14:00:51,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [577990670] [2022-07-21 14:00:51,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [577990670] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 14:00:51,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 14:00:51,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 14:00:51,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441183321] [2022-07-21 14:00:51,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:00:51,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 14:00:51,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 14:00:51,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 14:00:51,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 14:00:51,626 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) [2022-07-21 14:00:52,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:00:52,696 INFO L93 Difference]: Finished difference Result 32396 states and 44626 transitions. [2022-07-21 14:00:52,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 14:00:52,696 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 [2022-07-21 14:00:52,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:00:52,818 INFO L225 Difference]: With dead ends: 32396 [2022-07-21 14:00:52,818 INFO L226 Difference]: Without dead ends: 32394 [2022-07-21 14:00:52,840 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 [2022-07-21 14:00:52,840 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 [2022-07-21 14:00:52,841 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] [2022-07-21 14:00:52,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32394 states. [2022-07-21 14:00:53,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32394 to 32394. [2022-07-21 14:00:53,925 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) [2022-07-21 14:00:54,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32394 states to 32394 states and 44624 transitions. [2022-07-21 14:00:54,055 INFO L78 Accepts]: Start accepts. Automaton has 32394 states and 44624 transitions. Word has length 201 [2022-07-21 14:00:54,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:00:54,055 INFO L495 AbstractCegarLoop]: Abstraction has 32394 states and 44624 transitions. [2022-07-21 14:00:54,056 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) [2022-07-21 14:00:54,056 INFO L276 IsEmpty]: Start isEmpty. Operand 32394 states and 44624 transitions. [2022-07-21 14:00:54,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-07-21 14:00:54,065 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:00:54,065 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] [2022-07-21 14:00:54,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-07-21 14:00:54,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 14:00:54,291 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 14:00:54,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:00:54,292 INFO L85 PathProgramCache]: Analyzing trace with hash -739280001, now seen corresponding path program 1 times [2022-07-21 14:00:54,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:00:54,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974375917] [2022-07-21 14:00:54,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:00:54,297 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:00:54,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:00:54,299 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 14:00:54,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-21 14:01:01,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:01:01,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 5355 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 14:01:01,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 14:01:03,576 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2022-07-21 14:01:03,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 14:01:04,346 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2022-07-21 14:01:04,346 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 14:01:04,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1974375917] [2022-07-21 14:01:04,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1974375917] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 14:01:04,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 14:01:04,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 14:01:04,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841263135] [2022-07-21 14:01:04,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:01:04,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 14:01:04,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 14:01:04,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 14:01:04,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 14:01:04,347 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) [2022-07-21 14:01:05,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:01:05,611 INFO L93 Difference]: Finished difference Result 32400 states and 44629 transitions. [2022-07-21 14:01:05,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 14:01:05,612 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 [2022-07-21 14:01:05,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:01:05,712 INFO L225 Difference]: With dead ends: 32400 [2022-07-21 14:01:05,713 INFO L226 Difference]: Without dead ends: 32398 [2022-07-21 14:01:05,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:01:05,729 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 [2022-07-21 14:01:05,729 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] [2022-07-21 14:01:05,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32398 states. [2022-07-21 14:01:06,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32398 to 32398. [2022-07-21 14:01:06,878 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) [2022-07-21 14:01:07,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32398 states to 32398 states and 44627 transitions. [2022-07-21 14:01:07,005 INFO L78 Accepts]: Start accepts. Automaton has 32398 states and 44627 transitions. Word has length 206 [2022-07-21 14:01:07,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:01:07,005 INFO L495 AbstractCegarLoop]: Abstraction has 32398 states and 44627 transitions. [2022-07-21 14:01:07,006 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) [2022-07-21 14:01:07,006 INFO L276 IsEmpty]: Start isEmpty. Operand 32398 states and 44627 transitions. [2022-07-21 14:01:07,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-07-21 14:01:07,015 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:01:07,016 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] [2022-07-21 14:01:07,163 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-21 14:01:07,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 14:01:07,239 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 14:01:07,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:01:07,239 INFO L85 PathProgramCache]: Analyzing trace with hash 429172487, now seen corresponding path program 1 times [2022-07-21 14:01:07,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:01:07,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1039100554] [2022-07-21 14:01:07,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:01:07,247 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:01:07,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:01:07,249 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 14:01:07,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-21 14:01:14,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 14:01:15,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 5362 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 14:01:15,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 14:01:17,055 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2022-07-21 14:01:17,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 14:01:17,977 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2022-07-21 14:01:17,977 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 14:01:17,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1039100554] [2022-07-21 14:01:17,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1039100554] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-21 14:01:17,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 14:01:17,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-21 14:01:17,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478909940] [2022-07-21 14:01:17,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 14:01:17,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 14:01:17,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 14:01:17,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 14:01:17,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 14:01:17,978 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) [2022-07-21 14:01:19,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 14:01:19,097 INFO L93 Difference]: Finished difference Result 32404 states and 44632 transitions. [2022-07-21 14:01:19,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 14:01:19,097 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 [2022-07-21 14:01:19,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 14:01:19,219 INFO L225 Difference]: With dead ends: 32404 [2022-07-21 14:01:19,219 INFO L226 Difference]: Without dead ends: 32402 [2022-07-21 14:01:19,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-21 14:01:19,237 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 [2022-07-21 14:01:19,238 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] [2022-07-21 14:01:19,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32402 states. [2022-07-21 14:01:20,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32402 to 32402. [2022-07-21 14:01:20,460 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) [2022-07-21 14:01:20,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32402 states to 32402 states and 44630 transitions. [2022-07-21 14:01:20,611 INFO L78 Accepts]: Start accepts. Automaton has 32402 states and 44630 transitions. Word has length 211 [2022-07-21 14:01:20,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 14:01:20,612 INFO L495 AbstractCegarLoop]: Abstraction has 32402 states and 44630 transitions. [2022-07-21 14:01:20,612 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) [2022-07-21 14:01:20,612 INFO L276 IsEmpty]: Start isEmpty. Operand 32402 states and 44630 transitions. [2022-07-21 14:01:20,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-07-21 14:01:20,623 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 14:01:20,623 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] [2022-07-21 14:01:20,761 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2022-07-21 14:01:20,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 14:01:20,826 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)] === [2022-07-21 14:01:20,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 14:01:20,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1312864120, now seen corresponding path program 1 times [2022-07-21 14:01:20,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 14:01:20,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2142596284] [2022-07-21 14:01:20,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 14:01:20,832 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 14:01:20,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 14:01:20,833 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 14:01:20,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process