./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.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 6a79b35c65887feb0e3310d99b98c096a3638844b86132f83b5aa5c0d07bcad8 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 15:06:50,742 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 15:06:50,744 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 15:06:50,764 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 15:06:50,764 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 15:06:50,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 15:06:50,766 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 15:06:50,767 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 15:06:50,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 15:06:50,769 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 15:06:50,770 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 15:06:50,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 15:06:50,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 15:06:50,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 15:06:50,776 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 15:06:50,777 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 15:06:50,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 15:06:50,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 15:06:50,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 15:06:50,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 15:06:50,800 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 15:06:50,801 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 15:06:50,802 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 15:06:50,803 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 15:06:50,803 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 15:06:50,810 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 15:06:50,810 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 15:06:50,810 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 15:06:50,811 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 15:06:50,812 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 15:06:50,812 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 15:06:50,813 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 15:06:50,813 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 15:06:50,814 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 15:06:50,814 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 15:06:50,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 15:06:50,815 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 15:06:50,816 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 15:06:50,831 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 15:06:50,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 15:06:50,832 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 15:06:50,833 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 15:06:50,834 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 15:06:50,859 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 15:06:50,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 15:06:50,859 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 15:06:50,859 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 15:06:50,860 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 15:06:50,860 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 15:06:50,860 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 15:06:50,861 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 15:06:50,861 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 15:06:50,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 15:06:50,861 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 15:06:50,861 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 15:06:50,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 15:06:50,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 15:06:50,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 15:06:50,862 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 15:06:50,862 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 15:06:50,862 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 15:06:50,862 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 15:06:50,862 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 15:06:50,862 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 15:06:50,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 15:06:50,863 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 15:06:50,863 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 15:06:50,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 15:06:50,863 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 15:06:50,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 15:06:50,864 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 15:06:50,864 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 15:06:50,864 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 15:06:50,864 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a79b35c65887feb0e3310d99b98c096a3638844b86132f83b5aa5c0d07bcad8 [2022-07-21 15:06:51,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 15:06:51,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 15:06:51,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 15:06:51,292 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 15:06:51,303 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 15:06:51,304 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i [2022-07-21 15:06:51,380 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6adced4b/ec79b312b273408c9c776ad8ec663711/FLAG22f879495 [2022-07-21 15:06:52,221 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 15:06:52,222 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i [2022-07-21 15:06:52,270 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6adced4b/ec79b312b273408c9c776ad8ec663711/FLAG22f879495 [2022-07-21 15:06:52,752 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6adced4b/ec79b312b273408c9c776ad8ec663711 [2022-07-21 15:06:52,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 15:06:52,757 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 15:06:52,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 15:06:52,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 15:06:52,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 15:06:52,763 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:06:52" (1/1) ... [2022-07-21 15:06:52,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64682bac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:06:52, skipping insertion in model container [2022-07-21 15:06:52,765 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:06:52" (1/1) ... [2022-07-21 15:06:52,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 15:06:52,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 15:06:55,254 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490366,490379] [2022-07-21 15:06:55,256 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490535,490548] [2022-07-21 15:06:55,257 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490702,490715] [2022-07-21 15:06:55,257 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490870,490883] [2022-07-21 15:06:55,274 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 15:06:55,324 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 15:06:55,463 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:1627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) 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 15:06:55,471 INFO L158 Benchmark]: Toolchain (without parser) took 2712.93ms. Allocated memory was 62.9MB in the beginning and 142.6MB in the end (delta: 79.7MB). Free memory was 34.4MB in the beginning and 66.7MB in the end (delta: -32.4MB). Peak memory consumption was 70.0MB. Max. memory is 16.1GB. [2022-07-21 15:06:55,471 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 62.9MB. Free memory was 43.9MB in the beginning and 43.8MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 15:06:55,472 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2709.91ms. Allocated memory was 62.9MB in the beginning and 142.6MB in the end (delta: 79.7MB). Free memory was 34.2MB in the beginning and 66.7MB in the end (delta: -32.5MB). Peak memory consumption was 70.0MB. Max. memory is 16.1GB. [2022-07-21 15:06:55,473 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 62.9MB. Free memory was 43.9MB in the beginning and 43.8MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2709.91ms. Allocated memory was 62.9MB in the beginning and 142.6MB in the end (delta: 79.7MB). Free memory was 34.2MB in the beginning and 66.7MB in the end (delta: -32.5MB). Peak memory consumption was 70.0MB. 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.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 6a79b35c65887feb0e3310d99b98c096a3638844b86132f83b5aa5c0d07bcad8 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 15:06:57,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 15:06:57,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 15:06:57,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 15:06:57,302 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 15:06:57,303 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 15:06:57,308 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 15:06:57,310 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 15:06:57,312 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 15:06:57,315 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 15:06:57,316 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 15:06:57,320 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 15:06:57,320 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 15:06:57,322 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 15:06:57,323 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 15:06:57,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 15:06:57,324 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 15:06:57,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 15:06:57,328 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 15:06:57,330 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 15:06:57,332 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 15:06:57,333 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 15:06:57,334 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 15:06:57,335 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 15:06:57,336 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 15:06:57,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 15:06:57,348 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 15:06:57,348 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 15:06:57,349 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 15:06:57,350 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 15:06:57,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 15:06:57,350 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 15:06:57,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 15:06:57,351 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 15:06:57,352 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 15:06:57,352 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 15:06:57,353 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 15:06:57,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 15:06:57,353 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 15:06:57,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 15:06:57,354 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 15:06:57,357 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 15:06:57,358 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-21 15:06:57,379 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 15:06:57,380 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 15:06:57,380 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 15:06:57,380 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 15:06:57,381 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 15:06:57,381 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 15:06:57,382 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 15:06:57,382 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 15:06:57,382 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 15:06:57,383 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 15:06:57,383 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 15:06:57,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 15:06:57,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 15:06:57,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 15:06:57,383 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 15:06:57,383 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 15:06:57,384 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 15:06:57,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 15:06:57,384 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 15:06:57,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 15:06:57,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 15:06:57,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 15:06:57,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 15:06:57,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 15:06:57,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 15:06:57,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 15:06:57,385 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 15:06:57,385 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 15:06:57,385 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 15:06:57,386 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 15:06:57,386 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 15:06:57,386 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 15:06:57,386 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 15:06:57,386 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a79b35c65887feb0e3310d99b98c096a3638844b86132f83b5aa5c0d07bcad8 [2022-07-21 15:06:57,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 15:06:57,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 15:06:57,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 15:06:57,683 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 15:06:57,683 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 15:06:57,685 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i [2022-07-21 15:06:57,739 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7eb4d4a68/1373e495bb1f4d1fa92a627eb2c8f22d/FLAG597a8c751 [2022-07-21 15:06:58,606 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 15:06:58,607 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i [2022-07-21 15:06:58,669 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7eb4d4a68/1373e495bb1f4d1fa92a627eb2c8f22d/FLAG597a8c751 [2022-07-21 15:06:58,767 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7eb4d4a68/1373e495bb1f4d1fa92a627eb2c8f22d [2022-07-21 15:06:58,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 15:06:58,770 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 15:06:58,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 15:06:58,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 15:06:58,774 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 15:06:58,775 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:06:58" (1/1) ... [2022-07-21 15:06:58,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46a2131b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:06:58, skipping insertion in model container [2022-07-21 15:06:58,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:06:58" (1/1) ... [2022-07-21 15:06:58,780 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 15:06:59,004 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 15:07:01,373 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490366,490379] [2022-07-21 15:07:01,375 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490535,490548] [2022-07-21 15:07:01,376 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490702,490715] [2022-07-21 15:07:01,376 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490870,490883] [2022-07-21 15:07:01,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 15:07:01,441 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-21 15:07:01,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 15:07:01,789 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490366,490379] [2022-07-21 15:07:01,790 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490535,490548] [2022-07-21 15:07:01,790 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490702,490715] [2022-07-21 15:07:01,791 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490870,490883] [2022-07-21 15:07:01,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 15:07:01,814 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 15:07:02,140 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490366,490379] [2022-07-21 15:07:02,141 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490535,490548] [2022-07-21 15:07:02,141 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490702,490715] [2022-07-21 15:07:02,142 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490870,490883] [2022-07-21 15:07:02,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 15:07:02,315 INFO L208 MainTranslator]: Completed translation [2022-07-21 15:07:02,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:07:02 WrapperNode [2022-07-21 15:07:02,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 15:07:02,318 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 15:07:02,318 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 15:07:02,318 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 15:07:02,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:07:02" (1/1) ... [2022-07-21 15:07:02,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:07:02" (1/1) ... [2022-07-21 15:07:02,667 INFO L137 Inliner]: procedures = 488, calls = 4636, calls flagged for inlining = 228, calls inlined = 198, statements flattened = 8661 [2022-07-21 15:07:02,669 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 15:07:02,669 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 15:07:02,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 15:07:02,670 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 15:07:02,678 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:07:02" (1/1) ... [2022-07-21 15:07:02,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:07:02" (1/1) ... [2022-07-21 15:07:02,764 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:07:02" (1/1) ... [2022-07-21 15:07:02,766 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:07:02" (1/1) ... [2022-07-21 15:07:02,992 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:07:02" (1/1) ... [2022-07-21 15:07:03,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:07:02" (1/1) ... [2022-07-21 15:07:03,064 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:07:02" (1/1) ... [2022-07-21 15:07:03,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 15:07:03,101 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 15:07:03,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 15:07:03,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 15:07:03,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:07:02" (1/1) ... [2022-07-21 15:07:03,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 15:07:03,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 15:07:03,157 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 15:07:03,202 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 15:07:03,215 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_reset [2022-07-21 15:07:03,215 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_reset [2022-07-21 15:07:03,215 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2022-07-21 15:07:03,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2022-07-21 15:07:03,216 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_stop [2022-07-21 15:07:03,216 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_stop [2022-07-21 15:07:03,216 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_config_parameter_str [2022-07-21 15:07:03,216 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_config_parameter_str [2022-07-21 15:07:03,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 15:07:03,216 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 15:07:03,216 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_inform_bss [2022-07-21 15:07:03,216 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_inform_bss [2022-07-21 15:07:03,217 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_pause_rx [2022-07-21 15:07:03,217 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_pause_rx [2022-07-21 15:07:03,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 15:07:03,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 15:07:03,217 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_tx_fixup [2022-07-21 15:07:03,217 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_tx_fixup [2022-07-21 15:07:03,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 15:07:03,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-21 15:07:03,218 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_bind [2022-07-21 15:07:03,218 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_bind [2022-07-21 15:07:03,218 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_set_multicast_list [2022-07-21 15:07:03,218 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_set_multicast_list [2022-07-21 15:07:03,218 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_purge_paused_rxq [2022-07-21 15:07:03,218 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_purge_paused_rxq [2022-07-21 15:07:03,218 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_unbind [2022-07-21 15:07:03,218 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_unbind [2022-07-21 15:07:03,218 INFO L130 BoogieDeclarations]: Found specification of procedure set_encr_mode [2022-07-21 15:07:03,219 INFO L138 BoogieDeclarations]: Found implementation of procedure set_encr_mode [2022-07-21 15:07:03,219 INFO L130 BoogieDeclarations]: Found specification of procedure get_rndis_wlan_priv [2022-07-21 15:07:03,219 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rndis_wlan_priv [2022-07-21 15:07:03,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-21 15:07:03,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-21 15:07:03,219 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2022-07-21 15:07:03,219 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2022-07-21 15:07:03,219 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-21 15:07:03,220 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-21 15:07:03,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-21 15:07:03,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-21 15:07:03,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 15:07:03,220 INFO L130 BoogieDeclarations]: Found specification of procedure set_infra_mode [2022-07-21 15:07:03,220 INFO L138 BoogieDeclarations]: Found implementation of procedure set_infra_mode [2022-07-21 15:07:03,220 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_command [2022-07-21 15:07:03,220 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_command [2022-07-21 15:07:03,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-21 15:07:03,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 15:07:03,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-21 15:07:03,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-21 15:07:03,221 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_scan_done [2022-07-21 15:07:03,221 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_scan_done [2022-07-21 15:07:03,221 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-07-21 15:07:03,221 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-07-21 15:07:03,221 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-21 15:07:03,222 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-21 15:07:03,222 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_fill_station_info [2022-07-21 15:07:03,222 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_fill_station_info [2022-07-21 15:07:03,222 INFO L130 BoogieDeclarations]: Found specification of procedure unknown_early_init [2022-07-21 15:07:03,222 INFO L138 BoogieDeclarations]: Found implementation of procedure unknown_early_init [2022-07-21 15:07:03,222 INFO L130 BoogieDeclarations]: Found specification of procedure disassociate [2022-07-21 15:07:03,222 INFO L138 BoogieDeclarations]: Found implementation of procedure disassociate [2022-07-21 15:07:03,222 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_relative [2022-07-21 15:07:03,223 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_relative [2022-07-21 15:07:03,223 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_query_oid [2022-07-21 15:07:03,223 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_query_oid [2022-07-21 15:07:03,223 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2022-07-21 15:07:03,223 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2022-07-21 15:07:03,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-21 15:07:03,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-21 15:07:03,223 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2022-07-21 15:07:03,223 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2022-07-21 15:07:03,224 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_free [2022-07-21 15:07:03,224 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_free [2022-07-21 15:07:03,224 INFO L130 BoogieDeclarations]: Found specification of procedure is_wpa_key [2022-07-21 15:07:03,224 INFO L138 BoogieDeclarations]: Found implementation of procedure is_wpa_key [2022-07-21 15:07:03,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 15:07:03,224 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 15:07:03,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-21 15:07:03,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-21 15:07:03,225 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_priv [2022-07-21 15:07:03,225 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_priv [2022-07-21 15:07:03,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-21 15:07:03,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-21 15:07:03,225 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_check_bssid_list [2022-07-21 15:07:03,225 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_check_bssid_list [2022-07-21 15:07:03,225 INFO L130 BoogieDeclarations]: Found specification of procedure __toupper [2022-07-21 15:07:03,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __toupper [2022-07-21 15:07:03,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 15:07:03,226 INFO L130 BoogieDeclarations]: Found specification of procedure bcm4320b_early_init [2022-07-21 15:07:03,226 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm4320b_early_init [2022-07-21 15:07:03,226 INFO L130 BoogieDeclarations]: Found specification of procedure set_channel [2022-07-21 15:07:03,226 INFO L138 BoogieDeclarations]: Found implementation of procedure set_channel [2022-07-21 15:07:03,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-21 15:07:03,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-21 15:07:03,226 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_status [2022-07-21 15:07:03,226 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_status [2022-07-21 15:07:03,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-07-21 15:07:03,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-07-21 15:07:03,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 15:07:03,227 INFO L130 BoogieDeclarations]: Found specification of procedure level_to_qual [2022-07-21 15:07:03,227 INFO L138 BoogieDeclarations]: Found implementation of procedure level_to_qual [2022-07-21 15:07:03,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-21 15:07:03,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-21 15:07:03,227 INFO L130 BoogieDeclarations]: Found specification of procedure set_essid [2022-07-21 15:07:03,227 INFO L138 BoogieDeclarations]: Found implementation of procedure set_essid [2022-07-21 15:07:03,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 15:07:03,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-21 15:07:03,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-21 15:07:03,228 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_put_bss [2022-07-21 15:07:03,228 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_put_bss [2022-07-21 15:07:03,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-21 15:07:03,243 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_start_bssid_list_scan [2022-07-21 15:07:03,243 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_start_bssid_list_scan [2022-07-21 15:07:03,244 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_open [2022-07-21 15:07:03,244 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_open [2022-07-21 15:07:03,244 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_copy_module_params [2022-07-21 15:07:03,244 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_copy_module_params [2022-07-21 15:07:03,244 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-21 15:07:03,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-21 15:07:03,244 INFO L130 BoogieDeclarations]: Found specification of procedure set_auth_mode [2022-07-21 15:07:03,245 INFO L138 BoogieDeclarations]: Found implementation of procedure set_auth_mode [2022-07-21 15:07:03,245 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-07-21 15:07:03,245 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-07-21 15:07:03,245 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-21 15:07:03,245 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-21 15:07:03,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-21 15:07:03,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 15:07:03,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 15:07:03,245 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-21 15:07:03,245 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-21 15:07:03,246 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-21 15:07:03,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-21 15:07:03,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-21 15:07:03,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-21 15:07:03,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 15:07:03,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 15:07:03,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-21 15:07:03,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 15:07:03,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 15:07:03,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 15:07:03,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rndis_wlan_driver_exit_11_2 [2022-07-21 15:07:03,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rndis_wlan_driver_exit_11_2 [2022-07-21 15:07:03,247 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-07-21 15:07:03,247 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-07-21 15:07:03,247 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_cipher_to_alg [2022-07-21 15:07:03,247 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_cipher_to_alg [2022-07-21 15:07:03,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 15:07:03,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-21 15:07:03,248 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-21 15:07:03,248 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-21 15:07:03,248 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_channel [2022-07-21 15:07:03,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_channel [2022-07-21 15:07:03,248 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-07-21 15:07:03,248 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-07-21 15:07:03,248 INFO L130 BoogieDeclarations]: Found specification of procedure add_wep_key [2022-07-21 15:07:03,248 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wep_key [2022-07-21 15:07:03,248 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_stop [2022-07-21 15:07:03,249 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_stop [2022-07-21 15:07:03,249 INFO L130 BoogieDeclarations]: Found specification of procedure is_broadcast_ether_addr [2022-07-21 15:07:03,249 INFO L138 BoogieDeclarations]: Found implementation of procedure is_broadcast_ether_addr [2022-07-21 15:07:03,249 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-21 15:07:03,249 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-21 15:07:03,249 INFO L130 BoogieDeclarations]: Found specification of procedure set_bssid [2022-07-21 15:07:03,249 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bssid [2022-07-21 15:07:03,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 15:07:03,249 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 15:07:03,250 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-07-21 15:07:03,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-07-21 15:07:03,250 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-07-21 15:07:03,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-07-21 15:07:03,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 15:07:03,250 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-21 15:07:03,250 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-21 15:07:03,250 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bssid [2022-07-21 15:07:03,250 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bssid [2022-07-21 15:07:03,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 15:07:03,251 INFO L130 BoogieDeclarations]: Found specification of procedure set_device_pmkids [2022-07-21 15:07:03,251 INFO L138 BoogieDeclarations]: Found implementation of procedure set_device_pmkids [2022-07-21 15:07:03,251 INFO L130 BoogieDeclarations]: Found specification of procedure get_device_pmkids [2022-07-21 15:07:03,251 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device_pmkids [2022-07-21 15:07:03,251 INFO L130 BoogieDeclarations]: Found specification of procedure netif_addr_unlock_bh [2022-07-21 15:07:03,251 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_addr_unlock_bh [2022-07-21 15:07:03,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-21 15:07:03,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-21 15:07:03,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-21 15:07:03,252 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-07-21 15:07:03,252 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-07-21 15:07:03,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 15:07:03,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 15:07:03,252 INFO L130 BoogieDeclarations]: Found specification of procedure next_bssid_list_item [2022-07-21 15:07:03,252 INFO L138 BoogieDeclarations]: Found implementation of procedure next_bssid_list_item [2022-07-21 15:07:03,252 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-21 15:07:03,252 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-21 15:07:03,252 INFO L130 BoogieDeclarations]: Found specification of procedure set_priv_filter [2022-07-21 15:07:03,253 INFO L138 BoogieDeclarations]: Found implementation of procedure set_priv_filter [2022-07-21 15:07:03,253 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-21 15:07:03,253 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-21 15:07:03,253 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-21 15:07:03,253 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-21 15:07:03,253 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_wiphy_params [2022-07-21 15:07:03,253 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_wiphy_params [2022-07-21 15:07:03,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-21 15:07:03,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-21 15:07:03,254 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-21 15:07:03,254 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-21 15:07:03,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_7_4 [2022-07-21 15:07:03,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_7_4 [2022-07-21 15:07:03,254 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-07-21 15:07:03,254 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-07-21 15:07:03,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-21 15:07:03,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-21 15:07:03,255 INFO L130 BoogieDeclarations]: Found specification of procedure oid_to_string [2022-07-21 15:07:03,255 INFO L138 BoogieDeclarations]: Found implementation of procedure oid_to_string [2022-07-21 15:07:03,255 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2022-07-21 15:07:03,255 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2022-07-21 15:07:03,255 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-21 15:07:03,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-21 15:07:03,255 INFO L130 BoogieDeclarations]: Found specification of procedure deauthenticate [2022-07-21 15:07:03,255 INFO L138 BoogieDeclarations]: Found implementation of procedure deauthenticate [2022-07-21 15:07:03,256 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 15:07:03,256 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 15:07:03,256 INFO L130 BoogieDeclarations]: Found specification of procedure bcm4320a_early_init [2022-07-21 15:07:03,256 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm4320a_early_init [2022-07-21 15:07:03,256 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_michael_mic_failure [2022-07-21 15:07:03,256 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_michael_mic_failure [2022-07-21 15:07:03,256 INFO L130 BoogieDeclarations]: Found specification of procedure set_default_iw_params [2022-07-21 15:07:03,256 INFO L138 BoogieDeclarations]: Found implementation of procedure set_default_iw_params [2022-07-21 15:07:03,256 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_error_status [2022-07-21 15:07:03,257 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_error_status [2022-07-21 15:07:03,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-21 15:07:03,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-21 15:07:03,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-21 15:07:03,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-21 15:07:03,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 15:07:03,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 15:07:03,257 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume_rx [2022-07-21 15:07:03,257 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume_rx [2022-07-21 15:07:03,258 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-07-21 15:07:03,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-07-21 15:07:03,258 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-07-21 15:07:03,258 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-07-21 15:07:03,258 INFO L130 BoogieDeclarations]: Found specification of procedure get_bcm4320_power_dbm [2022-07-21 15:07:03,258 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bcm4320_power_dbm [2022-07-21 15:07:03,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-21 15:07:03,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-21 15:07:03,259 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-07-21 15:07:03,259 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-07-21 15:07:03,259 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_rx_fixup [2022-07-21 15:07:03,259 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_rx_fixup [2022-07-21 15:07:03,259 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_oid [2022-07-21 15:07:03,259 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_oid [2022-07-21 15:07:03,259 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_indication [2022-07-21 15:07:03,259 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_indication [2022-07-21 15:07:03,259 INFO L130 BoogieDeclarations]: Found specification of procedure get_bssid [2022-07-21 15:07:03,260 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bssid [2022-07-21 15:07:03,260 INFO L130 BoogieDeclarations]: Found specification of procedure is_associated [2022-07-21 15:07:03,260 INFO L138 BoogieDeclarations]: Found implementation of procedure is_associated [2022-07-21 15:07:03,260 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-07-21 15:07:03,260 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-07-21 15:07:03,260 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-07-21 15:07:03,260 INFO L130 BoogieDeclarations]: Found specification of procedure debug_print_pmkids [2022-07-21 15:07:03,260 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_print_pmkids [2022-07-21 15:07:03,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-21 15:07:03,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-21 15:07:04,200 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 15:07:04,203 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 15:07:09,642 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 15:09:14,791 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-21 15:09:21,769 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 15:09:21,800 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 15:09:21,800 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-21 15:09:21,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:09:21 BoogieIcfgContainer [2022-07-21 15:09:21,803 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 15:09:21,805 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 15:09:21,805 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 15:09:21,807 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 15:09:21,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 03:06:58" (1/3) ... [2022-07-21 15:09:21,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@86839e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:09:21, skipping insertion in model container [2022-07-21 15:09:21,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:07:02" (2/3) ... [2022-07-21 15:09:21,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@86839e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:09:21, skipping insertion in model container [2022-07-21 15:09:21,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:09:21" (3/3) ... [2022-07-21 15:09:21,809 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i [2022-07-21 15:09:21,818 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 15:09:21,819 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-21 15:09:21,875 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 15:09:21,879 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@128a70ed, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6e5ae910 [2022-07-21 15:09:21,879 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-21 15:09:21,888 INFO L276 IsEmpty]: Start isEmpty. Operand has 2661 states, 1854 states have (on average 1.306903991370011) internal successors, (2423), 1858 states have internal predecessors, (2423), 689 states have call successors, (689), 116 states have call predecessors, (689), 115 states have return successors, (681), 681 states have call predecessors, (681), 681 states have call successors, (681) [2022-07-21 15:09:21,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2022-07-21 15:09:21,914 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:09:21,915 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:09:21,915 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:09:21,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:09:21,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1424593025, now seen corresponding path program 1 times [2022-07-21 15:09:21,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:09:21,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [809264673] [2022-07-21 15:09:21,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:09:21,936 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:09:21,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:09:21,952 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 15:09:21,957 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 15:09:25,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:09:25,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 4044 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:09:25,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:09:26,507 INFO L134 CoverageAnalysis]: Checked inductivity of 5778 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 5670 trivial. 0 not checked. [2022-07-21 15:09:26,507 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:09:26,508 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:09:26,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [809264673] [2022-07-21 15:09:26,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [809264673] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:09:26,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:09:26,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:09:26,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076211470] [2022-07-21 15:09:26,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:09:26,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:09:26,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:09:26,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:09:26,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:09:26,543 INFO L87 Difference]: Start difference. First operand has 2661 states, 1854 states have (on average 1.306903991370011) internal successors, (2423), 1858 states have internal predecessors, (2423), 689 states have call successors, (689), 116 states have call predecessors, (689), 115 states have return successors, (681), 681 states have call predecessors, (681), 681 states have call successors, (681) Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-07-21 15:09:28,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:09:28,468 INFO L93 Difference]: Finished difference Result 7701 states and 11089 transitions. [2022-07-21 15:09:28,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:09:28,471 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 430 [2022-07-21 15:09:28,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:09:28,510 INFO L225 Difference]: With dead ends: 7701 [2022-07-21 15:09:28,511 INFO L226 Difference]: Without dead ends: 5105 [2022-07-21 15:09:28,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 428 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:09:28,547 INFO L413 NwaCegarLoop]: 4396 mSDtfsCounter, 3525 mSDsluCounter, 3709 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3525 SdHoareTripleChecker+Valid, 8105 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-21 15:09:28,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3525 Valid, 8105 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-21 15:09:28,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5105 states. [2022-07-21 15:09:28,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5105 to 5101. [2022-07-21 15:09:28,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5101 states, 3583 states have (on average 1.3067262070890315) internal successors, (4682), 3590 states have internal predecessors, (4682), 1289 states have call successors, (1289), 227 states have call predecessors, (1289), 226 states have return successors, (1285), 1285 states have call predecessors, (1285), 1285 states have call successors, (1285) [2022-07-21 15:09:28,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5101 states to 5101 states and 7256 transitions. [2022-07-21 15:09:28,931 INFO L78 Accepts]: Start accepts. Automaton has 5101 states and 7256 transitions. Word has length 430 [2022-07-21 15:09:28,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:09:28,933 INFO L495 AbstractCegarLoop]: Abstraction has 5101 states and 7256 transitions. [2022-07-21 15:09:28,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-07-21 15:09:28,934 INFO L276 IsEmpty]: Start isEmpty. Operand 5101 states and 7256 transitions. [2022-07-21 15:09:28,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2022-07-21 15:09:28,952 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:09:28,952 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 36, 36, 36, 36, 36, 36, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:09:29,033 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 15:09:29,166 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 15:09:29,167 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:09:29,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:09:29,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1600924656, now seen corresponding path program 1 times [2022-07-21 15:09:29,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:09:29,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [124905498] [2022-07-21 15:09:29,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:09:29,172 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:09:29,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:09:29,180 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 15:09:29,182 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 15:09:32,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:09:33,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 4396 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:09:33,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:09:34,440 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 5679 trivial. 0 not checked. [2022-07-21 15:09:34,440 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:09:34,441 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:09:34,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [124905498] [2022-07-21 15:09:34,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [124905498] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:09:34,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:09:34,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:09:34,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133476244] [2022-07-21 15:09:34,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:09:34,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:09:34,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:09:34,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:09:34,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:09:34,444 INFO L87 Difference]: Start difference. First operand 5101 states and 7256 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-07-21 15:09:36,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:09:36,485 INFO L93 Difference]: Finished difference Result 12554 states and 17836 transitions. [2022-07-21 15:09:36,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:09:36,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 482 [2022-07-21 15:09:36,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:09:36,524 INFO L225 Difference]: With dead ends: 12554 [2022-07-21 15:09:36,525 INFO L226 Difference]: Without dead ends: 7530 [2022-07-21 15:09:36,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 481 GetRequests, 480 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:09:36,548 INFO L413 NwaCegarLoop]: 4383 mSDtfsCounter, 3504 mSDsluCounter, 3703 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3504 SdHoareTripleChecker+Valid, 8086 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-21 15:09:36,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3504 Valid, 8086 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-21 15:09:36,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7530 states. [2022-07-21 15:09:36,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7530 to 7500. [2022-07-21 15:09:36,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7500 states, 5286 states have (on average 1.3057132046916382) internal successors, (6902), 5299 states have internal predecessors, (6902), 1869 states have call successors, (1869), 343 states have call predecessors, (1869), 342 states have return successors, (1865), 1860 states have call predecessors, (1865), 1865 states have call successors, (1865) [2022-07-21 15:09:36,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7500 states to 7500 states and 10636 transitions. [2022-07-21 15:09:36,796 INFO L78 Accepts]: Start accepts. Automaton has 7500 states and 10636 transitions. Word has length 482 [2022-07-21 15:09:36,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:09:36,797 INFO L495 AbstractCegarLoop]: Abstraction has 7500 states and 10636 transitions. [2022-07-21 15:09:36,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-07-21 15:09:36,798 INFO L276 IsEmpty]: Start isEmpty. Operand 7500 states and 10636 transitions. [2022-07-21 15:09:36,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2022-07-21 15:09:36,892 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:09:36,893 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 36, 36, 36, 36, 36, 36, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:09:36,979 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 15:09:37,093 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 15:09:37,094 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 15:09:37,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:09:37,095 INFO L85 PathProgramCache]: Analyzing trace with hash -2103689921, now seen corresponding path program 1 times [2022-07-21 15:09:37,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:09:37,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [921497060] [2022-07-21 15:09:37,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:09:37,102 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:09:37,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:09:37,103 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 15:09:37,149 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 15:09:40,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:09:40,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 4423 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:09:40,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:09:42,056 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 5679 trivial. 0 not checked. [2022-07-21 15:09:42,062 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:09:42,063 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:09:42,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [921497060] [2022-07-21 15:09:42,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [921497060] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:09:42,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:09:42,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:09:42,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168886949] [2022-07-21 15:09:42,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:09:42,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:09:42,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:09:42,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:09:42,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:09:42,069 INFO L87 Difference]: Start difference. First operand 7500 states and 10636 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-07-21 15:09:43,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:09:43,711 INFO L93 Difference]: Finished difference Result 21997 states and 31204 transitions. [2022-07-21 15:09:43,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:09:43,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 488 [2022-07-21 15:09:43,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:09:43,815 INFO L225 Difference]: With dead ends: 21997 [2022-07-21 15:09:43,816 INFO L226 Difference]: Without dead ends: 14574 [2022-07-21 15:09:43,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 486 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:09:43,858 INFO L413 NwaCegarLoop]: 4420 mSDtfsCounter, 3460 mSDsluCounter, 3719 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3460 SdHoareTripleChecker+Valid, 8139 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-21 15:09:43,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3460 Valid, 8139 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-21 15:09:43,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14574 states. [2022-07-21 15:09:44,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14574 to 14544. [2022-07-21 15:09:44,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14544 states, 10282 states have (on average 1.3066524022563704) internal successors, (13435), 10312 states have internal predecessors, (13435), 3590 states have call successors, (3590), 670 states have call predecessors, (3590), 669 states have return successors, (3586), 3567 states have call predecessors, (3586), 3586 states have call successors, (3586) [2022-07-21 15:09:44,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14544 states to 14544 states and 20611 transitions. [2022-07-21 15:09:44,428 INFO L78 Accepts]: Start accepts. Automaton has 14544 states and 20611 transitions. Word has length 488 [2022-07-21 15:09:44,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:09:44,429 INFO L495 AbstractCegarLoop]: Abstraction has 14544 states and 20611 transitions. [2022-07-21 15:09:44,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-07-21 15:09:44,429 INFO L276 IsEmpty]: Start isEmpty. Operand 14544 states and 20611 transitions. [2022-07-21 15:09:44,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2022-07-21 15:09:44,445 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:09:44,446 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 36, 36, 36, 36, 36, 36, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:09:44,525 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 15:09:44,667 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 15:09:44,668 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:09:44,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:09:44,668 INFO L85 PathProgramCache]: Analyzing trace with hash 627471655, now seen corresponding path program 1 times [2022-07-21 15:09:44,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:09:44,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1594280575] [2022-07-21 15:09:44,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:09:44,673 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:09:44,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:09:44,691 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 15:09:44,737 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 15:09:48,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:09:48,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 4395 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:09:48,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:09:49,764 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 5679 trivial. 0 not checked. [2022-07-21 15:09:49,765 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:09:49,765 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:09:49,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1594280575] [2022-07-21 15:09:49,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1594280575] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:09:49,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:09:49,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:09:49,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928335140] [2022-07-21 15:09:49,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:09:49,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:09:49,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:09:49,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:09:49,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:09:49,767 INFO L87 Difference]: Start difference. First operand 14544 states and 20611 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-07-21 15:09:52,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:09:52,295 INFO L93 Difference]: Finished difference Result 38245 states and 54148 transitions. [2022-07-21 15:09:52,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:09:52,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 481 [2022-07-21 15:09:52,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:09:52,408 INFO L225 Difference]: With dead ends: 38245 [2022-07-21 15:09:52,409 INFO L226 Difference]: Without dead ends: 23778 [2022-07-21 15:09:52,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 479 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:09:52,468 INFO L413 NwaCegarLoop]: 4475 mSDtfsCounter, 3504 mSDsluCounter, 3702 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3504 SdHoareTripleChecker+Valid, 8177 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-21 15:09:52,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3504 Valid, 8177 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-21 15:09:52,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23778 states. [2022-07-21 15:09:53,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23778 to 23746. [2022-07-21 15:09:53,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23746 states, 16825 states have (on average 1.3049034175334324) internal successors, (21955), 16883 states have internal predecessors, (21955), 5800 states have call successors, (5800), 1119 states have call predecessors, (5800), 1118 states have return successors, (5796), 5753 states have call predecessors, (5796), 5796 states have call successors, (5796) [2022-07-21 15:09:53,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23746 states to 23746 states and 33551 transitions. [2022-07-21 15:09:53,314 INFO L78 Accepts]: Start accepts. Automaton has 23746 states and 33551 transitions. Word has length 481 [2022-07-21 15:09:53,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:09:53,317 INFO L495 AbstractCegarLoop]: Abstraction has 23746 states and 33551 transitions. [2022-07-21 15:09:53,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-07-21 15:09:53,317 INFO L276 IsEmpty]: Start isEmpty. Operand 23746 states and 33551 transitions. [2022-07-21 15:09:53,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2022-07-21 15:09:53,328 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:09:53,329 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 36, 36, 36, 36, 36, 36, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:09:53,445 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 15:09:53,543 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 15:09:53,544 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-21 15:09:53,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:09:53,545 INFO L85 PathProgramCache]: Analyzing trace with hash 268938547, now seen corresponding path program 1 times [2022-07-21 15:09:53,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:09:53,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1901856132] [2022-07-21 15:09:53,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:09:53,549 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:09:53,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:09:53,551 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 15:09:53,566 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 15:09:57,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:09:57,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 4394 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:09:57,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:09:58,441 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 5679 trivial. 0 not checked. [2022-07-21 15:09:58,441 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:09:58,441 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:09:58,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1901856132] [2022-07-21 15:09:58,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1901856132] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:09:58,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:09:58,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:09:58,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596516126] [2022-07-21 15:09:58,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:09:58,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:09:58,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:09:58,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:09:58,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:09:58,443 INFO L87 Difference]: Start difference. First operand 23746 states and 33551 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-07-21 15:10:01,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:10:01,221 INFO L93 Difference]: Finished difference Result 64582 states and 91301 transitions. [2022-07-21 15:10:01,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:10:01,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 480 [2022-07-21 15:10:01,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:10:01,418 INFO L225 Difference]: With dead ends: 64582 [2022-07-21 15:10:01,419 INFO L226 Difference]: Without dead ends: 40913 [2022-07-21 15:10:01,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 478 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:10:01,496 INFO L413 NwaCegarLoop]: 4837 mSDtfsCounter, 3504 mSDsluCounter, 3701 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3504 SdHoareTripleChecker+Valid, 8538 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-21 15:10:01,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3504 Valid, 8538 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-21 15:10:01,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40913 states. [2022-07-21 15:10:02,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40913 to 40885. [2022-07-21 15:10:02,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40885 states, 29012 states have (on average 1.3049083138011857) internal successors, (37858), 29126 states have internal predecessors, (37858), 9937 states have call successors, (9937), 1934 states have call predecessors, (9937), 1933 states have return successors, (9933), 9842 states have call predecessors, (9933), 9933 states have call successors, (9933) [2022-07-21 15:10:03,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40885 states to 40885 states and 57728 transitions. [2022-07-21 15:10:03,236 INFO L78 Accepts]: Start accepts. Automaton has 40885 states and 57728 transitions. Word has length 480 [2022-07-21 15:10:03,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:10:03,238 INFO L495 AbstractCegarLoop]: Abstraction has 40885 states and 57728 transitions. [2022-07-21 15:10:03,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-07-21 15:10:03,239 INFO L276 IsEmpty]: Start isEmpty. Operand 40885 states and 57728 transitions. [2022-07-21 15:10:03,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2022-07-21 15:10:03,251 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:10:03,251 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:10:03,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-21 15:10:03,478 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 15:10:03,478 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 15:10:03,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:10:03,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1359438917, now seen corresponding path program 1 times [2022-07-21 15:10:03,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:10:03,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [429904231] [2022-07-21 15:10:03,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:10:03,482 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:10:03,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:10:03,484 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 15:10:03,488 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 15:10:06,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:10:06,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 4176 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 15:10:06,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:10:07,854 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 6015 trivial. 0 not checked. [2022-07-21 15:10:07,854 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:10:07,855 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:10:07,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [429904231] [2022-07-21 15:10:07,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [429904231] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:10:07,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:10:07,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 15:10:07,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569586821] [2022-07-21 15:10:07,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:10:07,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 15:10:07,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:10:07,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 15:10:07,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:10:07,856 INFO L87 Difference]: Start difference. First operand 40885 states and 57728 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-07-21 15:10:11,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:10:11,020 INFO L93 Difference]: Finished difference Result 113841 states and 160895 transitions. [2022-07-21 15:10:11,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 15:10:11,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 493 [2022-07-21 15:10:11,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:10:11,361 INFO L225 Difference]: With dead ends: 113841 [2022-07-21 15:10:11,362 INFO L226 Difference]: Without dead ends: 76663 [2022-07-21 15:10:11,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 491 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 15:10:11,618 INFO L413 NwaCegarLoop]: 7244 mSDtfsCounter, 3484 mSDsluCounter, 3715 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3484 SdHoareTripleChecker+Valid, 10959 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-21 15:10:11,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3484 Valid, 10959 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-21 15:10:11,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76663 states. [2022-07-21 15:10:13,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76663 to 76659. [2022-07-21 15:10:13,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76659 states, 54448 states have (on average 1.305557596238613) internal successors, (71085), 54594 states have internal predecessors, (71085), 18574 states have call successors, (18574), 3635 states have call predecessors, (18574), 3634 states have return successors, (18570), 18463 states have call predecessors, (18570), 18570 states have call successors, (18570) [2022-07-21 15:10:14,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76659 states to 76659 states and 108229 transitions. [2022-07-21 15:10:14,437 INFO L78 Accepts]: Start accepts. Automaton has 76659 states and 108229 transitions. Word has length 493 [2022-07-21 15:10:14,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:10:14,438 INFO L495 AbstractCegarLoop]: Abstraction has 76659 states and 108229 transitions. [2022-07-21 15:10:14,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-07-21 15:10:14,438 INFO L276 IsEmpty]: Start isEmpty. Operand 76659 states and 108229 transitions. [2022-07-21 15:10:14,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2022-07-21 15:10:14,449 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:10:14,450 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:10:14,538 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 15:10:14,668 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 15:10:14,668 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 15:10:14,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:10:14,669 INFO L85 PathProgramCache]: Analyzing trace with hash -657839043, now seen corresponding path program 1 times [2022-07-21 15:10:14,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:10:14,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1738764420] [2022-07-21 15:10:14,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:10:14,673 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:10:14,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:10:14,674 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 15:10:14,676 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 15:10:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:10:18,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 4176 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:10:18,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 15:10:42,508 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2022-07-21 15:10:42,508 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 15:10:42,508 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 15:10:42,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1738764420] [2022-07-21 15:10:42,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1738764420] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 15:10:42,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 15:10:42,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 15:10:42,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788533878] [2022-07-21 15:10:42,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 15:10:42,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 15:10:42,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 15:10:42,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 15:10:42,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 15:10:42,510 INFO L87 Difference]: Start difference. First operand 76659 states and 108229 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 3 states have internal predecessors, (88), 1 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) [2022-07-21 15:10:44,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 15:10:44,634 INFO L93 Difference]: Finished difference Result 76665 states and 108234 transitions. [2022-07-21 15:10:44,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 15:10:44,635 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 3 states have internal predecessors, (88), 1 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) Word has length 493 [2022-07-21 15:10:44,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 15:10:44,934 INFO L225 Difference]: With dead ends: 76665 [2022-07-21 15:10:44,934 INFO L226 Difference]: Without dead ends: 76663 [2022-07-21 15:10:44,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 489 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 15:10:44,971 INFO L413 NwaCegarLoop]: 3757 mSDtfsCounter, 3591 mSDsluCounter, 7503 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3592 SdHoareTripleChecker+Valid, 11260 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 15:10:44,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3592 Valid, 11260 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 15:10:45,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76663 states. [2022-07-21 15:10:47,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76663 to 76663. [2022-07-21 15:10:47,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76663 states, 54451 states have (on average 1.305540761418523) internal successors, (71088), 54597 states have internal predecessors, (71088), 18574 states have call successors, (18574), 3636 states have call predecessors, (18574), 3635 states have return successors, (18570), 18463 states have call predecessors, (18570), 18570 states have call successors, (18570) [2022-07-21 15:10:47,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76663 states to 76663 states and 108232 transitions. [2022-07-21 15:10:47,493 INFO L78 Accepts]: Start accepts. Automaton has 76663 states and 108232 transitions. Word has length 493 [2022-07-21 15:10:47,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 15:10:47,494 INFO L495 AbstractCegarLoop]: Abstraction has 76663 states and 108232 transitions. [2022-07-21 15:10:47,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 3 states have internal predecessors, (88), 1 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) [2022-07-21 15:10:47,494 INFO L276 IsEmpty]: Start isEmpty. Operand 76663 states and 108232 transitions. [2022-07-21 15:10:47,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2022-07-21 15:10:47,505 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 15:10:47,506 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 15:10:47,591 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-07-21 15:10:47,711 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 15:10:47,711 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 15:10:47,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 15:10:47,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1061871346, now seen corresponding path program 1 times [2022-07-21 15:10:47,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 15:10:47,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [18411840] [2022-07-21 15:10:47,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 15:10:47,716 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 15:10:47,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 15:10:47,718 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 15:10:47,719 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 15:10:51,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 15:10:51,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 4183 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 15:10:51,539 INFO L286 TraceCheckSpWp]: Computing forward predicates...