./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 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-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-?-6c24879 [2022-07-12 16:33:07,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 16:33:07,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 16:33:07,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 16:33:07,483 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 16:33:07,484 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 16:33:07,486 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 16:33:07,490 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 16:33:07,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 16:33:07,494 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 16:33:07,495 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 16:33:07,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 16:33:07,497 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 16:33:07,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 16:33:07,499 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 16:33:07,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 16:33:07,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 16:33:07,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 16:33:07,511 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 16:33:07,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 16:33:07,513 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 16:33:07,514 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 16:33:07,515 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 16:33:07,516 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 16:33:07,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 16:33:07,523 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 16:33:07,523 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 16:33:07,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 16:33:07,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 16:33:07,524 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 16:33:07,525 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 16:33:07,525 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 16:33:07,526 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 16:33:07,527 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 16:33:07,527 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 16:33:07,528 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 16:33:07,528 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 16:33:07,529 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 16:33:07,529 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 16:33:07,529 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 16:33:07,529 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 16:33:07,531 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 16:33:07,531 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 16:33:07,553 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 16:33:07,554 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 16:33:07,554 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 16:33:07,554 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 16:33:07,555 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 16:33:07,555 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 16:33:07,556 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 16:33:07,556 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 16:33:07,556 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 16:33:07,556 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 16:33:07,557 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 16:33:07,557 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 16:33:07,557 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 16:33:07,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 16:33:07,557 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 16:33:07,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 16:33:07,557 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 16:33:07,558 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 16:33:07,558 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 16:33:07,559 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 16:33:07,559 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 16:33:07,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 16:33:07,559 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 16:33:07,559 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 16:33:07,559 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 16:33:07,559 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 16:33:07,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 16:33:07,560 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 16:33:07,560 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 16:33:07,560 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 16:33:07,560 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a79b35c65887feb0e3310d99b98c096a3638844b86132f83b5aa5c0d07bcad8 [2022-07-12 16:33:07,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 16:33:07,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 16:33:07,775 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 16:33:07,776 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 16:33:07,778 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 16:33:07,779 INFO L432 ainManager$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 [2022-07-12 16:33:07,815 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd4adbf33/623eb88e940c495a8a394c8e9f53be49/FLAG6aecfcb30 [2022-07-12 16:33:08,598 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 16:33:08,599 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 [2022-07-12 16:33:08,653 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd4adbf33/623eb88e940c495a8a394c8e9f53be49/FLAG6aecfcb30 [2022-07-12 16:33:08,820 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd4adbf33/623eb88e940c495a8a394c8e9f53be49 [2022-07-12 16:33:08,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 16:33:08,823 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 16:33:08,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 16:33:08,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 16:33:08,828 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 16:33:08,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:33:08" (1/1) ... [2022-07-12 16:33:08,829 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eecd029 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:33:08, skipping insertion in model container [2022-07-12 16:33:08,830 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:33:08" (1/1) ... [2022-07-12 16:33:08,835 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 16:33:09,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 16:33:11,803 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] [2022-07-12 16:33:11,806 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] [2022-07-12 16:33:11,807 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] [2022-07-12 16:33:11,808 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] [2022-07-12 16:33:11,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:33:11,854 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 16:33:11,981 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) [2022-07-12 16:33:11,987 INFO L158 Benchmark]: Toolchain (without parser) took 3162.12ms. Allocated memory was 130.0MB in the beginning and 195.0MB in the end (delta: 65.0MB). Free memory was 78.2MB in the beginning and 76.1MB in the end (delta: 2.0MB). Peak memory consumption was 86.8MB. Max. memory is 16.1GB. [2022-07-12 16:33:11,988 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 81.8MB. Free memory was 38.2MB in the beginning and 38.1MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 16:33:11,989 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3159.42ms. Allocated memory was 130.0MB in the beginning and 195.0MB in the end (delta: 65.0MB). Free memory was 78.0MB in the beginning and 76.1MB in the end (delta: 1.9MB). Peak memory consumption was 86.8MB. Max. memory is 16.1GB. [2022-07-12 16:33:11,990 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 81.8MB. Free memory was 38.2MB in the beginning and 38.1MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3159.42ms. Allocated memory was 130.0MB in the beginning and 195.0MB in the end (delta: 65.0MB). Free memory was 78.0MB in the beginning and 76.1MB in the end (delta: 1.9MB). Peak memory consumption was 86.8MB. 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-?-6c24879 [2022-07-12 16:33:13,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 16:33:13,656 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 16:33:13,701 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 16:33:13,701 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 16:33:13,702 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 16:33:13,705 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 16:33:13,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 16:33:13,710 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 16:33:13,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 16:33:13,714 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 16:33:13,716 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 16:33:13,717 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 16:33:13,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 16:33:13,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 16:33:13,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 16:33:13,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 16:33:13,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 16:33:13,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 16:33:13,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 16:33:13,729 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 16:33:13,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 16:33:13,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 16:33:13,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 16:33:13,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 16:33:13,748 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 16:33:13,751 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 16:33:13,751 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 16:33:13,752 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 16:33:13,752 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 16:33:13,753 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 16:33:13,753 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 16:33:13,754 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 16:33:13,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 16:33:13,756 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 16:33:13,757 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 16:33:13,757 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 16:33:13,757 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 16:33:13,758 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 16:33:13,758 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 16:33:13,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 16:33:13,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 16:33:13,764 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-12 16:33:13,784 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 16:33:13,785 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 16:33:13,785 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 16:33:13,785 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 16:33:13,786 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 16:33:13,786 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 16:33:13,787 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 16:33:13,787 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 16:33:13,787 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 16:33:13,788 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 16:33:13,788 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 16:33:13,788 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 16:33:13,788 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 16:33:13,788 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 16:33:13,788 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 16:33:13,795 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 16:33:13,796 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 16:33:13,796 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 16:33:13,796 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 16:33:13,796 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 16:33:13,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 16:33:13,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 16:33:13,797 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 16:33:13,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 16:33:13,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 16:33:13,797 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 16:33:13,797 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 16:33:13,798 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 16:33:13,798 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 16:33:13,798 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 16:33:13,798 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 16:33:13,798 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 16:33:13,799 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 16:33:13,799 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a79b35c65887feb0e3310d99b98c096a3638844b86132f83b5aa5c0d07bcad8 [2022-07-12 16:33:14,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 16:33:14,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 16:33:14,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 16:33:14,063 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 16:33:14,064 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 16:33:14,065 INFO L432 ainManager$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 [2022-07-12 16:33:14,118 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11a648426/3f1d25e927c04d7ba4280abae56aace4/FLAGa6501c018 [2022-07-12 16:33:14,807 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 16:33:14,807 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 [2022-07-12 16:33:14,852 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11a648426/3f1d25e927c04d7ba4280abae56aace4/FLAGa6501c018 [2022-07-12 16:33:14,867 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11a648426/3f1d25e927c04d7ba4280abae56aace4 [2022-07-12 16:33:14,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 16:33:14,870 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 16:33:14,871 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 16:33:14,871 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 16:33:14,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 16:33:14,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:33:14" (1/1) ... [2022-07-12 16:33:14,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2778f799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:33:14, skipping insertion in model container [2022-07-12 16:33:14,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 04:33:14" (1/1) ... [2022-07-12 16:33:14,879 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 16:33:15,009 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 16:33:17,775 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] [2022-07-12 16:33:17,778 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] [2022-07-12 16:33:17,778 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] [2022-07-12 16:33:17,778 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] [2022-07-12 16:33:17,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:33:17,846 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-12 16:33:17,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 16:33:18,219 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] [2022-07-12 16:33:18,220 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] [2022-07-12 16:33:18,220 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] [2022-07-12 16:33:18,221 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] [2022-07-12 16:33:18,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:33:18,248 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 16:33:18,636 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] [2022-07-12 16:33:18,637 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] [2022-07-12 16:33:18,637 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] [2022-07-12 16:33:18,638 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] [2022-07-12 16:33:18,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 16:33:18,834 INFO L208 MainTranslator]: Completed translation [2022-07-12 16:33:18,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:33:18 WrapperNode [2022-07-12 16:33:18,835 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 16:33:18,836 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 16:33:18,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 16:33:18,836 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 16:33:18,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:33:18" (1/1) ... [2022-07-12 16:33:18,940 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:33:18" (1/1) ... [2022-07-12 16:33:19,131 INFO L137 Inliner]: procedures = 488, calls = 4636, calls flagged for inlining = 228, calls inlined = 198, statements flattened = 8661 [2022-07-12 16:33:19,132 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 16:33:19,133 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 16:33:19,133 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 16:33:19,133 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 16:33:19,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:33:18" (1/1) ... [2022-07-12 16:33:19,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:33:18" (1/1) ... [2022-07-12 16:33:19,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:33:18" (1/1) ... [2022-07-12 16:33:19,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:33:18" (1/1) ... [2022-07-12 16:33:19,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:33:18" (1/1) ... [2022-07-12 16:33:19,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:33:18" (1/1) ... [2022-07-12 16:33:19,388 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:33:18" (1/1) ... [2022-07-12 16:33:19,422 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 16:33:19,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 16:33:19,424 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 16:33:19,424 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 16:33:19,425 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:33:18" (1/1) ... [2022-07-12 16:33:19,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 16:33:19,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 16:33:19,460 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 16:33:19,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 16:33:19,547 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_reset [2022-07-12 16:33:19,547 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_reset [2022-07-12 16:33:19,548 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2022-07-12 16:33:19,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2022-07-12 16:33:19,548 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_stop [2022-07-12 16:33:19,548 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_stop [2022-07-12 16:33:19,548 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_config_parameter_str [2022-07-12 16:33:19,548 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_config_parameter_str [2022-07-12 16:33:19,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 16:33:19,548 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 16:33:19,549 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_inform_bss [2022-07-12 16:33:19,549 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_inform_bss [2022-07-12 16:33:19,549 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_pause_rx [2022-07-12 16:33:19,549 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_pause_rx [2022-07-12 16:33:19,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 16:33:19,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 16:33:19,549 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_tx_fixup [2022-07-12 16:33:19,549 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_tx_fixup [2022-07-12 16:33:19,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-12 16:33:19,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-12 16:33:19,550 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_bind [2022-07-12 16:33:19,550 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_bind [2022-07-12 16:33:19,550 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_set_multicast_list [2022-07-12 16:33:19,550 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_set_multicast_list [2022-07-12 16:33:19,550 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_purge_paused_rxq [2022-07-12 16:33:19,551 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_purge_paused_rxq [2022-07-12 16:33:19,551 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_unbind [2022-07-12 16:33:19,551 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_unbind [2022-07-12 16:33:19,551 INFO L130 BoogieDeclarations]: Found specification of procedure set_encr_mode [2022-07-12 16:33:19,551 INFO L138 BoogieDeclarations]: Found implementation of procedure set_encr_mode [2022-07-12 16:33:19,551 INFO L130 BoogieDeclarations]: Found specification of procedure get_rndis_wlan_priv [2022-07-12 16:33:19,551 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rndis_wlan_priv [2022-07-12 16:33:19,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-12 16:33:19,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-12 16:33:19,552 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2022-07-12 16:33:19,552 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2022-07-12 16:33:19,552 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-12 16:33:19,552 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-12 16:33:19,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-12 16:33:19,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-12 16:33:19,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 16:33:19,554 INFO L130 BoogieDeclarations]: Found specification of procedure set_infra_mode [2022-07-12 16:33:19,554 INFO L138 BoogieDeclarations]: Found implementation of procedure set_infra_mode [2022-07-12 16:33:19,554 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_command [2022-07-12 16:33:19,554 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_command [2022-07-12 16:33:19,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-07-12 16:33:19,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 16:33:19,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-12 16:33:19,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-12 16:33:19,555 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_scan_done [2022-07-12 16:33:19,555 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_scan_done [2022-07-12 16:33:19,555 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-07-12 16:33:19,555 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-07-12 16:33:19,555 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-12 16:33:19,555 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-12 16:33:19,555 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_fill_station_info [2022-07-12 16:33:19,556 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_fill_station_info [2022-07-12 16:33:19,556 INFO L130 BoogieDeclarations]: Found specification of procedure unknown_early_init [2022-07-12 16:33:19,556 INFO L138 BoogieDeclarations]: Found implementation of procedure unknown_early_init [2022-07-12 16:33:19,556 INFO L130 BoogieDeclarations]: Found specification of procedure disassociate [2022-07-12 16:33:19,556 INFO L138 BoogieDeclarations]: Found implementation of procedure disassociate [2022-07-12 16:33:19,557 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_relative [2022-07-12 16:33:19,557 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_relative [2022-07-12 16:33:19,557 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_query_oid [2022-07-12 16:33:19,557 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_query_oid [2022-07-12 16:33:19,557 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2022-07-12 16:33:19,557 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2022-07-12 16:33:19,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-12 16:33:19,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-12 16:33:19,557 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2022-07-12 16:33:19,558 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2022-07-12 16:33:19,558 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_free [2022-07-12 16:33:19,558 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_free [2022-07-12 16:33:19,558 INFO L130 BoogieDeclarations]: Found specification of procedure is_wpa_key [2022-07-12 16:33:19,558 INFO L138 BoogieDeclarations]: Found implementation of procedure is_wpa_key [2022-07-12 16:33:19,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 16:33:19,559 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 16:33:19,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-12 16:33:19,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-12 16:33:19,559 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_priv [2022-07-12 16:33:19,559 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_priv [2022-07-12 16:33:19,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-12 16:33:19,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-12 16:33:19,560 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_check_bssid_list [2022-07-12 16:33:19,560 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_check_bssid_list [2022-07-12 16:33:19,560 INFO L130 BoogieDeclarations]: Found specification of procedure __toupper [2022-07-12 16:33:19,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __toupper [2022-07-12 16:33:19,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 16:33:19,560 INFO L130 BoogieDeclarations]: Found specification of procedure bcm4320b_early_init [2022-07-12 16:33:19,561 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm4320b_early_init [2022-07-12 16:33:19,561 INFO L130 BoogieDeclarations]: Found specification of procedure set_channel [2022-07-12 16:33:19,561 INFO L138 BoogieDeclarations]: Found implementation of procedure set_channel [2022-07-12 16:33:19,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-12 16:33:19,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-12 16:33:19,561 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_status [2022-07-12 16:33:19,561 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_status [2022-07-12 16:33:19,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-07-12 16:33:19,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-07-12 16:33:19,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 16:33:19,562 INFO L130 BoogieDeclarations]: Found specification of procedure level_to_qual [2022-07-12 16:33:19,562 INFO L138 BoogieDeclarations]: Found implementation of procedure level_to_qual [2022-07-12 16:33:19,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-12 16:33:19,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-12 16:33:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure set_essid [2022-07-12 16:33:19,565 INFO L138 BoogieDeclarations]: Found implementation of procedure set_essid [2022-07-12 16:33:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 16:33:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-12 16:33:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-12 16:33:19,566 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_put_bss [2022-07-12 16:33:19,566 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_put_bss [2022-07-12 16:33:19,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-12 16:33:19,566 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_start_bssid_list_scan [2022-07-12 16:33:19,571 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_start_bssid_list_scan [2022-07-12 16:33:19,571 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_open [2022-07-12 16:33:19,571 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_open [2022-07-12 16:33:19,571 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_copy_module_params [2022-07-12 16:33:19,571 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_copy_module_params [2022-07-12 16:33:19,571 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-12 16:33:19,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-12 16:33:19,572 INFO L130 BoogieDeclarations]: Found specification of procedure set_auth_mode [2022-07-12 16:33:19,572 INFO L138 BoogieDeclarations]: Found implementation of procedure set_auth_mode [2022-07-12 16:33:19,572 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-07-12 16:33:19,572 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-07-12 16:33:19,572 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-12 16:33:19,572 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-12 16:33:19,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-12 16:33:19,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 16:33:19,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 16:33:19,573 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-12 16:33:19,573 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-12 16:33:19,573 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-12 16:33:19,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-12 16:33:19,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-12 16:33:19,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-12 16:33:19,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-12 16:33:19,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 16:33:19,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-12 16:33:19,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 16:33:19,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 16:33:19,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 16:33:19,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rndis_wlan_driver_exit_11_2 [2022-07-12 16:33:19,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rndis_wlan_driver_exit_11_2 [2022-07-12 16:33:19,574 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-07-12 16:33:19,574 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-07-12 16:33:19,574 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_cipher_to_alg [2022-07-12 16:33:19,574 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_cipher_to_alg [2022-07-12 16:33:19,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-12 16:33:19,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-12 16:33:19,575 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-12 16:33:19,575 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-12 16:33:19,575 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_channel [2022-07-12 16:33:19,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_channel [2022-07-12 16:33:19,575 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-07-12 16:33:19,575 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-07-12 16:33:19,575 INFO L130 BoogieDeclarations]: Found specification of procedure add_wep_key [2022-07-12 16:33:19,575 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wep_key [2022-07-12 16:33:19,575 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_stop [2022-07-12 16:33:19,575 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_stop [2022-07-12 16:33:19,576 INFO L130 BoogieDeclarations]: Found specification of procedure is_broadcast_ether_addr [2022-07-12 16:33:19,576 INFO L138 BoogieDeclarations]: Found implementation of procedure is_broadcast_ether_addr [2022-07-12 16:33:19,576 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-12 16:33:19,576 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-12 16:33:19,576 INFO L130 BoogieDeclarations]: Found specification of procedure set_bssid [2022-07-12 16:33:19,576 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bssid [2022-07-12 16:33:19,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 16:33:19,576 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 16:33:19,576 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-07-12 16:33:19,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-07-12 16:33:19,577 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-07-12 16:33:19,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-07-12 16:33:19,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 16:33:19,577 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-12 16:33:19,577 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-12 16:33:19,577 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bssid [2022-07-12 16:33:19,577 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bssid [2022-07-12 16:33:19,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 16:33:19,577 INFO L130 BoogieDeclarations]: Found specification of procedure set_device_pmkids [2022-07-12 16:33:19,577 INFO L138 BoogieDeclarations]: Found implementation of procedure set_device_pmkids [2022-07-12 16:33:19,578 INFO L130 BoogieDeclarations]: Found specification of procedure get_device_pmkids [2022-07-12 16:33:19,578 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device_pmkids [2022-07-12 16:33:19,578 INFO L130 BoogieDeclarations]: Found specification of procedure netif_addr_unlock_bh [2022-07-12 16:33:19,578 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_addr_unlock_bh [2022-07-12 16:33:19,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-12 16:33:19,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-12 16:33:19,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-12 16:33:19,578 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-07-12 16:33:19,578 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-07-12 16:33:19,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-12 16:33:19,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 16:33:19,579 INFO L130 BoogieDeclarations]: Found specification of procedure next_bssid_list_item [2022-07-12 16:33:19,579 INFO L138 BoogieDeclarations]: Found implementation of procedure next_bssid_list_item [2022-07-12 16:33:19,579 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-12 16:33:19,579 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-12 16:33:19,579 INFO L130 BoogieDeclarations]: Found specification of procedure set_priv_filter [2022-07-12 16:33:19,579 INFO L138 BoogieDeclarations]: Found implementation of procedure set_priv_filter [2022-07-12 16:33:19,579 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-12 16:33:19,579 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-12 16:33:19,579 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-12 16:33:19,580 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-12 16:33:19,580 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_wiphy_params [2022-07-12 16:33:19,580 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_wiphy_params [2022-07-12 16:33:19,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-12 16:33:19,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-12 16:33:19,580 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-12 16:33:19,580 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-12 16:33:19,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_7_4 [2022-07-12 16:33:19,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_7_4 [2022-07-12 16:33:19,580 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-07-12 16:33:19,580 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-07-12 16:33:19,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-12 16:33:19,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-12 16:33:19,581 INFO L130 BoogieDeclarations]: Found specification of procedure oid_to_string [2022-07-12 16:33:19,581 INFO L138 BoogieDeclarations]: Found implementation of procedure oid_to_string [2022-07-12 16:33:19,581 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2022-07-12 16:33:19,581 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2022-07-12 16:33:19,581 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-07-12 16:33:19,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-07-12 16:33:19,581 INFO L130 BoogieDeclarations]: Found specification of procedure deauthenticate [2022-07-12 16:33:19,581 INFO L138 BoogieDeclarations]: Found implementation of procedure deauthenticate [2022-07-12 16:33:19,582 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-12 16:33:19,582 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-12 16:33:19,582 INFO L130 BoogieDeclarations]: Found specification of procedure bcm4320a_early_init [2022-07-12 16:33:19,582 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm4320a_early_init [2022-07-12 16:33:19,582 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_michael_mic_failure [2022-07-12 16:33:19,582 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_michael_mic_failure [2022-07-12 16:33:19,582 INFO L130 BoogieDeclarations]: Found specification of procedure set_default_iw_params [2022-07-12 16:33:19,582 INFO L138 BoogieDeclarations]: Found implementation of procedure set_default_iw_params [2022-07-12 16:33:19,582 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_error_status [2022-07-12 16:33:19,582 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_error_status [2022-07-12 16:33:19,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-12 16:33:19,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-12 16:33:19,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-12 16:33:19,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-12 16:33:19,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 16:33:19,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 16:33:19,586 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume_rx [2022-07-12 16:33:19,586 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume_rx [2022-07-12 16:33:19,586 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-07-12 16:33:19,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-07-12 16:33:19,587 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-07-12 16:33:19,587 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-07-12 16:33:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure get_bcm4320_power_dbm [2022-07-12 16:33:19,588 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bcm4320_power_dbm [2022-07-12 16:33:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-12 16:33:19,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-12 16:33:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-07-12 16:33:19,588 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-07-12 16:33:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_rx_fixup [2022-07-12 16:33:19,588 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_rx_fixup [2022-07-12 16:33:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_oid [2022-07-12 16:33:19,588 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_oid [2022-07-12 16:33:19,589 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_indication [2022-07-12 16:33:19,589 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_indication [2022-07-12 16:33:19,589 INFO L130 BoogieDeclarations]: Found specification of procedure get_bssid [2022-07-12 16:33:19,589 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bssid [2022-07-12 16:33:19,589 INFO L130 BoogieDeclarations]: Found specification of procedure is_associated [2022-07-12 16:33:19,589 INFO L138 BoogieDeclarations]: Found implementation of procedure is_associated [2022-07-12 16:33:19,589 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-07-12 16:33:19,589 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-07-12 16:33:19,589 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-07-12 16:33:19,589 INFO L130 BoogieDeclarations]: Found specification of procedure debug_print_pmkids [2022-07-12 16:33:19,589 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_print_pmkids [2022-07-12 16:33:19,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-12 16:33:19,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-12 16:33:20,530 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 16:33:20,532 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 16:33:26,517 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 16:35:27,440 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-12 16:35:33,020 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 16:35:33,036 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 16:35:33,037 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 16:35:33,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 04:35:33 BoogieIcfgContainer [2022-07-12 16:35:33,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 16:35:33,041 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 16:35:33,041 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 16:35:33,043 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 16:35:33,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 04:33:14" (1/3) ... [2022-07-12 16:35:33,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f1ca37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 04:35:33, skipping insertion in model container [2022-07-12 16:35:33,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 04:33:18" (2/3) ... [2022-07-12 16:35:33,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f1ca37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 04:35:33, skipping insertion in model container [2022-07-12 16:35:33,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 04:35:33" (3/3) ... [2022-07-12 16:35:33,045 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i [2022-07-12 16:35:33,054 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 16:35:33,055 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-12 16:35:33,153 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 16:35:33,157 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@2a385de6, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@e32a873 [2022-07-12 16:35:33,157 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-12 16:35:33,172 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) [2022-07-12 16:35:33,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2022-07-12 16:35:33,198 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:35:33,199 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] [2022-07-12 16:35:33,200 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)] === [2022-07-12 16:35:33,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:35:33,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1424593025, now seen corresponding path program 1 times [2022-07-12 16:35:33,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:35:33,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [940890679] [2022-07-12 16:35:33,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:35:33,225 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:35:33,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:35:33,228 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:35:33,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 16:35:36,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:35:36,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 4044 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:35:36,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:35:37,963 INFO L134 CoverageAnalysis]: Checked inductivity of 5778 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 5670 trivial. 0 not checked. [2022-07-12 16:35:37,964 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:35:37,964 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:35:37,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [940890679] [2022-07-12 16:35:37,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [940890679] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:35:37,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:35:37,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:35:37,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385769617] [2022-07-12 16:35:37,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:35:37,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:35:37,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:35:37,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:35:37,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:35:38,001 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) [2022-07-12 16:35:40,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:35:40,104 INFO L93 Difference]: Finished difference Result 7701 states and 11089 transitions. [2022-07-12 16:35:40,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:35:40,107 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 [2022-07-12 16:35:40,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:35:40,158 INFO L225 Difference]: With dead ends: 7701 [2022-07-12 16:35:40,158 INFO L226 Difference]: Without dead ends: 5105 [2022-07-12 16:35:40,184 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 [2022-07-12 16:35:40,191 INFO L413 NwaCegarLoop]: 4396 mSDtfsCounter, 3525 mSDsluCounter, 3709 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s 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, 1.8s IncrementalHoareTripleChecker+Time [2022-07-12 16:35:40,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3525 Valid, 8105 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-12 16:35:40,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5105 states. [2022-07-12 16:35:40,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5105 to 5101. [2022-07-12 16:35:40,484 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) [2022-07-12 16:35:40,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5101 states to 5101 states and 7256 transitions. [2022-07-12 16:35:40,524 INFO L78 Accepts]: Start accepts. Automaton has 5101 states and 7256 transitions. Word has length 430 [2022-07-12 16:35:40,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:35:40,528 INFO L495 AbstractCegarLoop]: Abstraction has 5101 states and 7256 transitions. [2022-07-12 16:35:40,528 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) [2022-07-12 16:35:40,528 INFO L276 IsEmpty]: Start isEmpty. Operand 5101 states and 7256 transitions. [2022-07-12 16:35:40,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2022-07-12 16:35:40,549 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:35:40,549 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] [2022-07-12 16:35:40,637 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-12 16:35:40,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:35:40,756 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)] === [2022-07-12 16:35:40,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:35:40,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1600924656, now seen corresponding path program 1 times [2022-07-12 16:35:40,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:35:40,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [402918956] [2022-07-12 16:35:40,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:35:40,761 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:35:40,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:35:40,763 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:35:40,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-12 16:35:44,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:35:44,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 4396 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:35:44,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:35:45,732 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 5679 trivial. 0 not checked. [2022-07-12 16:35:45,733 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:35:45,733 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:35:45,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [402918956] [2022-07-12 16:35:45,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [402918956] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:35:45,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:35:45,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:35:45,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782223561] [2022-07-12 16:35:45,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:35:45,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:35:45,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:35:45,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:35:45,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:35:45,736 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) [2022-07-12 16:35:48,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:35:48,004 INFO L93 Difference]: Finished difference Result 12554 states and 17836 transitions. [2022-07-12 16:35:48,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:35:48,005 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 [2022-07-12 16:35:48,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:35:48,048 INFO L225 Difference]: With dead ends: 12554 [2022-07-12 16:35:48,048 INFO L226 Difference]: Without dead ends: 7530 [2022-07-12 16:35:48,074 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 [2022-07-12 16:35:48,076 INFO L413 NwaCegarLoop]: 4383 mSDtfsCounter, 3504 mSDsluCounter, 3703 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s 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, 2.0s IncrementalHoareTripleChecker+Time [2022-07-12 16:35:48,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3504 Valid, 8086 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-12 16:35:48,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7530 states. [2022-07-12 16:35:48,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7530 to 7500. [2022-07-12 16:35:48,322 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) [2022-07-12 16:35:48,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7500 states to 7500 states and 10636 transitions. [2022-07-12 16:35:48,367 INFO L78 Accepts]: Start accepts. Automaton has 7500 states and 10636 transitions. Word has length 482 [2022-07-12 16:35:48,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:35:48,368 INFO L495 AbstractCegarLoop]: Abstraction has 7500 states and 10636 transitions. [2022-07-12 16:35:48,369 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) [2022-07-12 16:35:48,370 INFO L276 IsEmpty]: Start isEmpty. Operand 7500 states and 10636 transitions. [2022-07-12 16:35:48,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2022-07-12 16:35:48,383 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:35:48,384 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] [2022-07-12 16:35:48,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-12 16:35:48,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:35:48,604 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:35:48,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:35:48,604 INFO L85 PathProgramCache]: Analyzing trace with hash -2103689921, now seen corresponding path program 1 times [2022-07-12 16:35:48,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:35:48,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [941378084] [2022-07-12 16:35:48,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:35:48,608 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:35:48,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:35:48,610 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:35:48,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-12 16:35:52,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:35:52,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 4423 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:35:52,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:35:53,682 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 5679 trivial. 0 not checked. [2022-07-12 16:35:53,683 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:35:53,683 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:35:53,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [941378084] [2022-07-12 16:35:53,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [941378084] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:35:53,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:35:53,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:35:53,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176105705] [2022-07-12 16:35:53,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:35:53,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:35:53,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:35:53,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:35:53,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:35:53,686 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) [2022-07-12 16:35:55,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:35:55,522 INFO L93 Difference]: Finished difference Result 21997 states and 31204 transitions. [2022-07-12 16:35:55,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:35:55,522 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 [2022-07-12 16:35:55,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:35:55,631 INFO L225 Difference]: With dead ends: 21997 [2022-07-12 16:35:55,632 INFO L226 Difference]: Without dead ends: 14574 [2022-07-12 16:35:55,676 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 [2022-07-12 16:35:55,680 INFO L413 NwaCegarLoop]: 4420 mSDtfsCounter, 3460 mSDsluCounter, 3719 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s 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, 1.6s IncrementalHoareTripleChecker+Time [2022-07-12 16:35:55,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3460 Valid, 8139 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-12 16:35:55,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14574 states. [2022-07-12 16:35:56,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14574 to 14544. [2022-07-12 16:35:56,141 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) [2022-07-12 16:35:56,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14544 states to 14544 states and 20611 transitions. [2022-07-12 16:35:56,195 INFO L78 Accepts]: Start accepts. Automaton has 14544 states and 20611 transitions. Word has length 488 [2022-07-12 16:35:56,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:35:56,196 INFO L495 AbstractCegarLoop]: Abstraction has 14544 states and 20611 transitions. [2022-07-12 16:35:56,196 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) [2022-07-12 16:35:56,196 INFO L276 IsEmpty]: Start isEmpty. Operand 14544 states and 20611 transitions. [2022-07-12 16:35:56,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2022-07-12 16:35:56,212 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:35:56,212 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] [2022-07-12 16:35:56,296 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-12 16:35:56,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:35:56,423 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:35:56,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:35:56,424 INFO L85 PathProgramCache]: Analyzing trace with hash 627471655, now seen corresponding path program 1 times [2022-07-12 16:35:56,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:35:56,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2069428140] [2022-07-12 16:35:56,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:35:56,427 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:35:56,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:35:56,429 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:35:56,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-12 16:35:59,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:35:59,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 4395 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:35:59,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:36:01,017 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 5679 trivial. 0 not checked. [2022-07-12 16:36:01,018 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:36:01,018 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:36:01,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2069428140] [2022-07-12 16:36:01,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2069428140] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:36:01,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:36:01,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:36:01,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135937803] [2022-07-12 16:36:01,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:36:01,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:36:01,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:36:01,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:36:01,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:36:01,020 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) [2022-07-12 16:36:03,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:36:03,190 INFO L93 Difference]: Finished difference Result 38245 states and 54148 transitions. [2022-07-12 16:36:03,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:36:03,191 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 [2022-07-12 16:36:03,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:36:03,291 INFO L225 Difference]: With dead ends: 38245 [2022-07-12 16:36:03,292 INFO L226 Difference]: Without dead ends: 23778 [2022-07-12 16:36:03,349 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 [2022-07-12 16:36:03,352 INFO L413 NwaCegarLoop]: 4475 mSDtfsCounter, 3504 mSDsluCounter, 3702 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s 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, 1.7s IncrementalHoareTripleChecker+Time [2022-07-12 16:36:03,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3504 Valid, 8177 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-12 16:36:03,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23778 states. [2022-07-12 16:36:04,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23778 to 23746. [2022-07-12 16:36:04,135 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) [2022-07-12 16:36:04,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23746 states to 23746 states and 33551 transitions. [2022-07-12 16:36:04,223 INFO L78 Accepts]: Start accepts. Automaton has 23746 states and 33551 transitions. Word has length 481 [2022-07-12 16:36:04,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:36:04,225 INFO L495 AbstractCegarLoop]: Abstraction has 23746 states and 33551 transitions. [2022-07-12 16:36:04,225 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) [2022-07-12 16:36:04,225 INFO L276 IsEmpty]: Start isEmpty. Operand 23746 states and 33551 transitions. [2022-07-12 16:36:04,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2022-07-12 16:36:04,237 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:36:04,237 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] [2022-07-12 16:36:04,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-12 16:36:04,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:36:04,444 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:36:04,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:36:04,444 INFO L85 PathProgramCache]: Analyzing trace with hash 268938547, now seen corresponding path program 1 times [2022-07-12 16:36:04,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:36:04,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [396077971] [2022-07-12 16:36:04,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:36:04,448 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:36:04,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:36:04,449 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:36:04,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-12 16:36:07,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:36:08,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 4394 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:36:08,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:36:09,425 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 5679 trivial. 0 not checked. [2022-07-12 16:36:09,426 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:36:09,426 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:36:09,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [396077971] [2022-07-12 16:36:09,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [396077971] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:36:09,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:36:09,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:36:09,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634834436] [2022-07-12 16:36:09,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:36:09,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:36:09,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:36:09,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:36:09,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:36:09,430 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) [2022-07-12 16:36:12,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:36:12,164 INFO L93 Difference]: Finished difference Result 64582 states and 91301 transitions. [2022-07-12 16:36:12,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:36:12,165 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 [2022-07-12 16:36:12,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:36:12,479 INFO L225 Difference]: With dead ends: 64582 [2022-07-12 16:36:12,479 INFO L226 Difference]: Without dead ends: 40913 [2022-07-12 16:36:12,768 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 [2022-07-12 16:36:12,768 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 [2022-07-12 16:36:12,769 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] [2022-07-12 16:36:12,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40913 states. [2022-07-12 16:36:13,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40913 to 40885. [2022-07-12 16:36:14,118 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) [2022-07-12 16:36:14,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40885 states to 40885 states and 57728 transitions. [2022-07-12 16:36:14,327 INFO L78 Accepts]: Start accepts. Automaton has 40885 states and 57728 transitions. Word has length 480 [2022-07-12 16:36:14,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:36:14,328 INFO L495 AbstractCegarLoop]: Abstraction has 40885 states and 57728 transitions. [2022-07-12 16:36:14,328 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) [2022-07-12 16:36:14,328 INFO L276 IsEmpty]: Start isEmpty. Operand 40885 states and 57728 transitions. [2022-07-12 16:36:14,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2022-07-12 16:36:14,341 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:36:14,342 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] [2022-07-12 16:36:14,435 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-12 16:36:14,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:36:14,560 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:36:14,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:36:14,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1359438917, now seen corresponding path program 1 times [2022-07-12 16:36:14,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:36:14,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1171859434] [2022-07-12 16:36:14,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:36:14,673 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:36:14,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:36:14,674 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:36:14,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-12 16:36:17,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:36:18,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 4176 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 16:36:18,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:36:19,103 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 6015 trivial. 0 not checked. [2022-07-12 16:36:19,103 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:36:19,103 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:36:19,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1171859434] [2022-07-12 16:36:19,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1171859434] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:36:19,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:36:19,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 16:36:19,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72766617] [2022-07-12 16:36:19,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:36:19,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 16:36:19,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:36:19,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 16:36:19,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 16:36:19,109 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) [2022-07-12 16:36:22,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:36:22,277 INFO L93 Difference]: Finished difference Result 113841 states and 160895 transitions. [2022-07-12 16:36:22,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 16:36:22,277 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 [2022-07-12 16:36:22,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:36:22,739 INFO L225 Difference]: With dead ends: 113841 [2022-07-12 16:36:22,739 INFO L226 Difference]: Without dead ends: 76663 [2022-07-12 16:36:22,864 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 [2022-07-12 16:36:22,864 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, 1.5s IncrementalHoareTripleChecker+Time [2022-07-12 16:36:22,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3484 Valid, 10959 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-12 16:36:22,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76663 states. [2022-07-12 16:36:25,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76663 to 76659. [2022-07-12 16:36:25,484 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) [2022-07-12 16:36:26,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76659 states to 76659 states and 108229 transitions. [2022-07-12 16:36:26,095 INFO L78 Accepts]: Start accepts. Automaton has 76659 states and 108229 transitions. Word has length 493 [2022-07-12 16:36:26,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:36:26,096 INFO L495 AbstractCegarLoop]: Abstraction has 76659 states and 108229 transitions. [2022-07-12 16:36:26,096 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) [2022-07-12 16:36:26,097 INFO L276 IsEmpty]: Start isEmpty. Operand 76659 states and 108229 transitions. [2022-07-12 16:36:26,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2022-07-12 16:36:26,111 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:36:26,111 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] [2022-07-12 16:36:26,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-12 16:36:26,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:36:26,320 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:36:26,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:36:26,321 INFO L85 PathProgramCache]: Analyzing trace with hash -657839043, now seen corresponding path program 1 times [2022-07-12 16:36:26,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:36:26,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [222768743] [2022-07-12 16:36:26,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:36:26,325 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:36:26,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:36:26,332 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:36:26,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-12 16:36:29,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:36:29,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 4176 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 16:36:29,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 16:36:53,760 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2022-07-12 16:36:53,761 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 16:36:53,761 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 16:36:53,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [222768743] [2022-07-12 16:36:53,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [222768743] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 16:36:53,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 16:36:53,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 16:36:53,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062738510] [2022-07-12 16:36:53,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 16:36:53,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 16:36:53,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 16:36:53,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 16:36:53,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 16:36:53,763 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) [2022-07-12 16:36:55,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 16:36:55,895 INFO L93 Difference]: Finished difference Result 76665 states and 108234 transitions. [2022-07-12 16:36:55,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 16:36:55,896 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 [2022-07-12 16:36:55,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 16:36:56,236 INFO L225 Difference]: With dead ends: 76665 [2022-07-12 16:36:56,236 INFO L226 Difference]: Without dead ends: 76663 [2022-07-12 16:36:56,286 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 [2022-07-12 16:36:56,287 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, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 16:36:56,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3592 Valid, 11260 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 16:36:56,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76663 states. [2022-07-12 16:36:58,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76663 to 76663. [2022-07-12 16:36:58,453 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) [2022-07-12 16:36:58,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76663 states to 76663 states and 108232 transitions. [2022-07-12 16:36:58,816 INFO L78 Accepts]: Start accepts. Automaton has 76663 states and 108232 transitions. Word has length 493 [2022-07-12 16:36:58,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 16:36:58,817 INFO L495 AbstractCegarLoop]: Abstraction has 76663 states and 108232 transitions. [2022-07-12 16:36:58,817 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) [2022-07-12 16:36:58,818 INFO L276 IsEmpty]: Start isEmpty. Operand 76663 states and 108232 transitions. [2022-07-12 16:36:58,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2022-07-12 16:36:58,831 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 16:36:58,831 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] [2022-07-12 16:36:58,922 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-12 16:36:59,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 16:36:59,048 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-12 16:36:59,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 16:36:59,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1061871346, now seen corresponding path program 1 times [2022-07-12 16:36:59,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 16:36:59,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [800513133] [2022-07-12 16:36:59,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 16:36:59,052 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 16:36:59,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 16:36:59,053 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-12 16:36:59,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-12 16:37:02,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 16:37:02,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 4183 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 16:37:02,689 INFO L286 TraceCheckSpWp]: Computing forward predicates...