./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.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 98d50d623f72baafe13ab6a5d1ec3f840fccd437bd559cdde24b5507886949f9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 02:52:21,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 02:52:21,836 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 02:52:21,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 02:52:21,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 02:52:21,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 02:52:21,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 02:52:21,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 02:52:21,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 02:52:21,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 02:52:21,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 02:52:21,861 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 02:52:21,861 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 02:52:21,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 02:52:21,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 02:52:21,863 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 02:52:21,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 02:52:21,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 02:52:21,866 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 02:52:21,867 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 02:52:21,868 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 02:52:21,869 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 02:52:21,869 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 02:52:21,870 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 02:52:21,870 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 02:52:21,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 02:52:21,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 02:52:21,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 02:52:21,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 02:52:21,874 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 02:52:21,874 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 02:52:21,875 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 02:52:21,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 02:52:21,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 02:52:21,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 02:52:21,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 02:52:21,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 02:52:21,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 02:52:21,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 02:52:21,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 02:52:21,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 02:52:21,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 02:52:21,880 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-20 02:52:21,894 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 02:52:21,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 02:52:21,894 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 02:52:21,894 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 02:52:21,895 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 02:52:21,895 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 02:52:21,896 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 02:52:21,896 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 02:52:21,896 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 02:52:21,896 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 02:52:21,897 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 02:52:21,897 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 02:52:21,897 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 02:52:21,897 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 02:52:21,897 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 02:52:21,898 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 02:52:21,898 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 02:52:21,898 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 02:52:21,898 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 02:52:21,898 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 02:52:21,899 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 02:52:21,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 02:52:21,899 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 02:52:21,899 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 02:52:21,899 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 02:52:21,900 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 02:52:21,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 02:52:21,900 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 02:52:21,900 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 02:52:21,900 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 02:52:21,900 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98d50d623f72baafe13ab6a5d1ec3f840fccd437bd559cdde24b5507886949f9 [2022-07-20 02:52:22,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 02:52:22,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 02:52:22,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 02:52:22,084 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 02:52:22,084 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 02:52:22,085 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i [2022-07-20 02:52:22,141 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59cb195f9/df83701c4a094d2caef322c0ba249f2d/FLAGa3a55f021 [2022-07-20 02:52:22,820 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 02:52:22,820 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i [2022-07-20 02:52:22,856 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59cb195f9/df83701c4a094d2caef322c0ba249f2d/FLAGa3a55f021 [2022-07-20 02:52:22,944 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59cb195f9/df83701c4a094d2caef322c0ba249f2d [2022-07-20 02:52:22,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 02:52:22,949 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 02:52:22,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 02:52:22,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 02:52:22,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 02:52:22,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:52:22" (1/1) ... [2022-07-20 02:52:22,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a7ba49b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:52:22, skipping insertion in model container [2022-07-20 02:52:22,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:52:22" (1/1) ... [2022-07-20 02:52:22,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 02:52:23,082 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 02:52:26,205 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[515692,515705] [2022-07-20 02:52:26,208 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[515861,515874] [2022-07-20 02:52:26,209 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[516028,516041] [2022-07-20 02:52:26,209 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[516196,516209] [2022-07-20 02:52:26,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 02:52:26,260 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 02:52:26,670 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.AssertionError: HeapLValues must be converted to RValue before their value can be queried. at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractAssign(BitabsTranslation.java:517) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.abstractAssginWithBitwiseOp(IntegerTranslation.java:973) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:737) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:326) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java: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) [2022-07-20 02:52:26,698 INFO L158 Benchmark]: Toolchain (without parser) took 3747.69ms. Allocated memory was 98.6MB in the beginning and 239.1MB in the end (delta: 140.5MB). Free memory was 67.1MB in the beginning and 101.3MB in the end (delta: -34.2MB). Peak memory consumption was 105.9MB. Max. memory is 16.1GB. [2022-07-20 02:52:26,699 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 98.6MB. Free memory is still 54.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 02:52:26,700 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3745.95ms. Allocated memory was 98.6MB in the beginning and 239.1MB in the end (delta: 140.5MB). Free memory was 67.1MB in the beginning and 101.3MB in the end (delta: -34.2MB). Peak memory consumption was 105.9MB. Max. memory is 16.1GB. [2022-07-20 02:52:26,701 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 98.6MB. Free memory is still 54.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3745.95ms. Allocated memory was 98.6MB in the beginning and 239.1MB in the end (delta: 140.5MB). Free memory was 67.1MB in the beginning and 101.3MB in the end (delta: -34.2MB). Peak memory consumption was 105.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: AssertionError: HeapLValues must be converted to RValue before their value can be queried. de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: AssertionError: HeapLValues must be converted to RValue before their value can be queried.: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.HeapLValue.getValue(HeapLValue.java:74) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.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 98d50d623f72baafe13ab6a5d1ec3f840fccd437bd559cdde24b5507886949f9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 02:52:28,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 02:52:28,351 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 02:52:28,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 02:52:28,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 02:52:28,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 02:52:28,388 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 02:52:28,390 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 02:52:28,392 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 02:52:28,395 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 02:52:28,396 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 02:52:28,398 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 02:52:28,398 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 02:52:28,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 02:52:28,400 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 02:52:28,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 02:52:28,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 02:52:28,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 02:52:28,405 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 02:52:28,410 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 02:52:28,410 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 02:52:28,411 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 02:52:28,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 02:52:28,413 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 02:52:28,414 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 02:52:28,418 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 02:52:28,429 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 02:52:28,429 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 02:52:28,430 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 02:52:28,430 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 02:52:28,431 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 02:52:28,431 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 02:52:28,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 02:52:28,432 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 02:52:28,432 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 02:52:28,433 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 02:52:28,433 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 02:52:28,434 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 02:52:28,434 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 02:52:28,434 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 02:52:28,435 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 02:52:28,435 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 02:52:28,436 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-20 02:52:28,452 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 02:52:28,453 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 02:52:28,454 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 02:52:28,454 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 02:52:28,454 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 02:52:28,454 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 02:52:28,455 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 02:52:28,455 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 02:52:28,455 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 02:52:28,456 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 02:52:28,456 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 02:52:28,456 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 02:52:28,456 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 02:52:28,457 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 02:52:28,457 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-20 02:52:28,457 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-20 02:52:28,457 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-20 02:52:28,457 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 02:52:28,457 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 02:52:28,457 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 02:52:28,458 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 02:52:28,458 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 02:52:28,458 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 02:52:28,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 02:52:28,458 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 02:52:28,458 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 02:52:28,459 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 02:52:28,459 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-20 02:52:28,459 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-20 02:52:28,459 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 02:52:28,459 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 02:52:28,459 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 02:52:28,459 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-20 02:52:28,460 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98d50d623f72baafe13ab6a5d1ec3f840fccd437bd559cdde24b5507886949f9 [2022-07-20 02:52:28,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 02:52:28,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 02:52:28,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 02:52:28,753 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 02:52:28,754 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 02:52:28,755 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i [2022-07-20 02:52:28,796 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be80a831c/1aa771e874f146e3a9bfa9a753edaa38/FLAG8da3d73af [2022-07-20 02:52:29,541 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 02:52:29,541 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i [2022-07-20 02:52:29,591 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be80a831c/1aa771e874f146e3a9bfa9a753edaa38/FLAG8da3d73af [2022-07-20 02:52:30,063 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be80a831c/1aa771e874f146e3a9bfa9a753edaa38 [2022-07-20 02:52:30,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 02:52:30,067 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 02:52:30,069 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 02:52:30,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 02:52:30,072 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 02:52:30,073 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:52:30" (1/1) ... [2022-07-20 02:52:30,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62f1fb74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:52:30, skipping insertion in model container [2022-07-20 02:52:30,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:52:30" (1/1) ... [2022-07-20 02:52:30,079 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 02:52:30,232 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 02:52:32,789 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[515692,515705] [2022-07-20 02:52:32,791 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[515861,515874] [2022-07-20 02:52:32,792 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[516028,516041] [2022-07-20 02:52:32,793 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[516196,516209] [2022-07-20 02:52:32,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 02:52:32,876 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-20 02:52:32,939 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 02:52:33,226 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[515692,515705] [2022-07-20 02:52:33,227 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[515861,515874] [2022-07-20 02:52:33,227 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[516028,516041] [2022-07-20 02:52:33,227 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[516196,516209] [2022-07-20 02:52:33,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 02:52:33,244 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 02:52:33,655 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[515692,515705] [2022-07-20 02:52:33,655 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[515861,515874] [2022-07-20 02:52:33,656 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[516028,516041] [2022-07-20 02:52:33,656 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i[516196,516209] [2022-07-20 02:52:33,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 02:52:33,804 INFO L208 MainTranslator]: Completed translation [2022-07-20 02:52:33,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:52:33 WrapperNode [2022-07-20 02:52:33,805 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 02:52:33,806 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 02:52:33,806 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 02:52:33,807 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 02:52:33,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:52:33" (1/1) ... [2022-07-20 02:52:33,973 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:52:33" (1/1) ... [2022-07-20 02:52:34,301 INFO L137 Inliner]: procedures = 407, calls = 6166, calls flagged for inlining = 164, calls inlined = 141, statements flattened = 13433 [2022-07-20 02:52:34,303 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 02:52:34,304 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 02:52:34,304 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 02:52:34,304 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 02:52:34,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:52:33" (1/1) ... [2022-07-20 02:52:34,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:52:33" (1/1) ... [2022-07-20 02:52:34,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:52:33" (1/1) ... [2022-07-20 02:52:34,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:52:33" (1/1) ... [2022-07-20 02:52:34,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:52:33" (1/1) ... [2022-07-20 02:52:34,586 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:52:33" (1/1) ... [2022-07-20 02:52:34,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:52:33" (1/1) ... [2022-07-20 02:52:34,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 02:52:34,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 02:52:34,669 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 02:52:34,669 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 02:52:34,670 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:52:33" (1/1) ... [2022-07-20 02:52:34,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 02:52:34,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 02:52:34,692 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) [2022-07-20 02:52:34,818 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 [2022-07-20 02:52:34,851 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-20 02:52:34,851 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-20 02:52:34,851 INFO L130 BoogieDeclarations]: Found specification of procedure to_sd [2022-07-20 02:52:34,851 INFO L138 BoogieDeclarations]: Found implementation of procedure to_sd [2022-07-20 02:52:34,851 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_s_tuner [2022-07-20 02:52:34,851 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_s_tuner [2022-07-20 02:52:34,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-20 02:52:34,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-20 02:52:34,852 INFO L130 BoogieDeclarations]: Found specification of procedure is_cx2388x [2022-07-20 02:52:34,852 INFO L138 BoogieDeclarations]: Found implementation of procedure is_cx2388x [2022-07-20 02:52:34,852 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_g_tuner [2022-07-20 02:52:34,852 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_g_tuner [2022-07-20 02:52:34,852 INFO L130 BoogieDeclarations]: Found specification of procedure is_cx2583x [2022-07-20 02:52:34,852 INFO L138 BoogieDeclarations]: Found implementation of procedure is_cx2583x [2022-07-20 02:52:34,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-20 02:52:34,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-07-20 02:52:34,853 INFO L130 BoogieDeclarations]: Found specification of procedure to_ir_state [2022-07-20 02:52:34,853 INFO L138 BoogieDeclarations]: Found implementation of procedure to_ir_state [2022-07-20 02:52:34,853 INFO L130 BoogieDeclarations]: Found specification of procedure pulse_width_count_to_ns [2022-07-20 02:52:34,853 INFO L138 BoogieDeclarations]: Found implementation of procedure pulse_width_count_to_ns [2022-07-20 02:52:34,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_53 [2022-07-20 02:52:34,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_53 [2022-07-20 02:52:34,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-20 02:52:34,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-20 02:52:34,854 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2022-07-20 02:52:34,854 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2022-07-20 02:52:34,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_rx_kfifo_lock_of_cx25840_ir_state [2022-07-20 02:52:34,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_rx_kfifo_lock_of_cx25840_ir_state [2022-07-20 02:52:34,855 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2022-07-20 02:52:34,855 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2022-07-20 02:52:34,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-20 02:52:34,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-20 02:52:34,855 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_g_sliced_fmt [2022-07-20 02:52:34,855 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_g_sliced_fmt [2022-07-20 02:52:34,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 02:52:34,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-20 02:52:34,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-20 02:52:34,856 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2022-07-20 02:52:34,856 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2022-07-20 02:52:34,856 INFO L130 BoogieDeclarations]: Found specification of procedure clock_divider_to_resolution [2022-07-20 02:52:34,857 INFO L138 BoogieDeclarations]: Found implementation of procedure clock_divider_to_resolution [2022-07-20 02:52:34,857 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-07-20 02:52:34,857 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-07-20 02:52:34,858 INFO L130 BoogieDeclarations]: Found specification of procedure cx25836_initialize [2022-07-20 02:52:34,858 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25836_initialize [2022-07-20 02:52:34,858 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_write4 [2022-07-20 02:52:34,858 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_write4 [2022-07-20 02:52:34,858 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_s_ext_ctrls [2022-07-20 02:52:34,858 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_s_ext_ctrls [2022-07-20 02:52:34,858 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_s_frequency [2022-07-20 02:52:34,859 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_s_frequency [2022-07-20 02:52:34,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-20 02:52:34,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-20 02:52:34,859 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_std_setup [2022-07-20 02:52:34,859 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_std_setup [2022-07-20 02:52:34,859 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2022-07-20 02:52:34,859 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2022-07-20 02:52:34,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-20 02:52:34,859 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-20 02:52:34,860 INFO L130 BoogieDeclarations]: Found specification of procedure control_tx_modulation_enable [2022-07-20 02:52:34,860 INFO L138 BoogieDeclarations]: Found implementation of procedure control_tx_modulation_enable [2022-07-20 02:52:34,860 INFO L130 BoogieDeclarations]: Found specification of procedure cx23885_initialize [2022-07-20 02:52:34,860 INFO L138 BoogieDeclarations]: Found implementation of procedure cx23885_initialize [2022-07-20 02:52:34,860 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_s_raw_fmt [2022-07-20 02:52:34,861 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_s_raw_fmt [2022-07-20 02:52:34,861 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_and_or [2022-07-20 02:52:34,861 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_and_or [2022-07-20 02:52:34,861 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_s_ctrl [2022-07-20 02:52:34,861 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_s_ctrl [2022-07-20 02:52:34,861 INFO L130 BoogieDeclarations]: Found specification of procedure set_audclk_freq [2022-07-20 02:52:34,861 INFO L138 BoogieDeclarations]: Found implementation of procedure set_audclk_freq [2022-07-20 02:52:34,920 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_rx_g_parameters [2022-07-20 02:52:34,920 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_rx_g_parameters [2022-07-20 02:52:34,920 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_initialize [2022-07-20 02:52:34,920 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_initialize [2022-07-20 02:52:34,920 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-20 02:52:34,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-07-20 02:52:34,920 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_g_input_status [2022-07-20 02:52:34,920 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_g_input_status [2022-07-20 02:52:34,920 INFO L130 BoogieDeclarations]: Found specification of procedure lpf_count_to_ns [2022-07-20 02:52:34,920 INFO L138 BoogieDeclarations]: Found implementation of procedure lpf_count_to_ns [2022-07-20 02:52:34,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-20 02:52:34,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-07-20 02:52:34,920 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_set_audclk_freq [2022-07-20 02:52:34,920 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_set_audclk_freq [2022-07-20 02:52:34,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 02:52:34,920 INFO L130 BoogieDeclarations]: Found specification of procedure pulse_width_count_to_us [2022-07-20 02:52:34,920 INFO L138 BoogieDeclarations]: Found implementation of procedure pulse_width_count_to_us [2022-07-20 02:52:34,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 02:52:34,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-20 02:52:34,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-20 02:52:34,921 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-20 02:52:34,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-20 02:52:34,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 02:52:34,921 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-20 02:52:34,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-20 02:52:34,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-20 02:52:34,921 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_get_subdevdata [2022-07-20 02:52:34,921 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_get_subdevdata [2022-07-20 02:52:34,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-20 02:52:34,921 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_decode_vbi_line [2022-07-20 02:52:34,921 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_decode_vbi_line [2022-07-20 02:52:34,921 INFO L130 BoogieDeclarations]: Found specification of procedure pulse_clocks_to_clock_divider [2022-07-20 02:52:34,921 INFO L138 BoogieDeclarations]: Found implementation of procedure pulse_clocks_to_clock_divider [2022-07-20 02:52:34,921 INFO L130 BoogieDeclarations]: Found specification of procedure is_cx231xx [2022-07-20 02:52:34,921 INFO L138 BoogieDeclarations]: Found implementation of procedure is_cx231xx [2022-07-20 02:52:34,921 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2022-07-20 02:52:34,922 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2022-07-20 02:52:34,922 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_probe [2022-07-20 02:52:34,922 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_probe [2022-07-20 02:52:34,922 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-07-20 02:52:34,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-07-20 02:52:34,922 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-20 02:52:34,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-20 02:52:34,922 INFO L130 BoogieDeclarations]: Found specification of procedure odd_parity [2022-07-20 02:52:34,922 INFO L138 BoogieDeclarations]: Found implementation of procedure odd_parity [2022-07-20 02:52:34,922 INFO L130 BoogieDeclarations]: Found specification of procedure control_rx_enable [2022-07-20 02:52:34,922 INFO L138 BoogieDeclarations]: Found implementation of procedure control_rx_enable [2022-07-20 02:52:34,922 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-20 02:52:34,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-20 02:52:34,922 INFO L130 BoogieDeclarations]: Found specification of procedure filter_rx_s_min_width [2022-07-20 02:52:34,922 INFO L138 BoogieDeclarations]: Found implementation of procedure filter_rx_s_min_width [2022-07-20 02:52:34,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-20 02:52:34,922 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_tx_shutdown [2022-07-20 02:52:34,922 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_tx_shutdown [2022-07-20 02:52:34,922 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-07-20 02:52:34,923 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-07-20 02:52:34,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 02:52:34,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 02:52:34,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-20 02:52:34,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-20 02:52:34,923 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_g_ctrl [2022-07-20 02:52:34,923 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_g_ctrl [2022-07-20 02:52:34,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-20 02:52:34,923 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_tx_s_parameters [2022-07-20 02:52:34,923 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_tx_s_parameters [2022-07-20 02:52:34,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-20 02:52:34,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-20 02:52:34,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-20 02:52:34,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-20 02:52:34,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-20 02:52:34,923 INFO L130 BoogieDeclarations]: Found specification of procedure input_change [2022-07-20 02:52:34,923 INFO L138 BoogieDeclarations]: Found implementation of procedure input_change [2022-07-20 02:52:34,923 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_tx_g_parameters [2022-07-20 02:52:34,923 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_tx_g_parameters [2022-07-20 02:52:34,923 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_querymenu [2022-07-20 02:52:34,923 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_querymenu [2022-07-20 02:52:34,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-20 02:52:34,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-07-20 02:52:34,924 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-20 02:52:34,924 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-20 02:52:34,924 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_probe [2022-07-20 02:52:34,924 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_probe [2022-07-20 02:52:34,924 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-07-20 02:52:34,924 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-07-20 02:52:34,924 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_rx_shutdown [2022-07-20 02:52:34,924 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_rx_shutdown [2022-07-20 02:52:34,924 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-20 02:52:34,924 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-20 02:52:34,924 INFO L130 BoogieDeclarations]: Found specification of procedure control_tx_enable [2022-07-20 02:52:34,924 INFO L138 BoogieDeclarations]: Found implementation of procedure control_tx_enable [2022-07-20 02:52:34,924 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-20 02:52:34,924 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-20 02:52:34,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-20 02:52:34,924 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-20 02:52:34,924 INFO L130 BoogieDeclarations]: Found specification of procedure carrier_freq_to_clock_divider [2022-07-20 02:52:34,924 INFO L138 BoogieDeclarations]: Found implementation of procedure carrier_freq_to_clock_divider [2022-07-20 02:52:34,924 INFO L130 BoogieDeclarations]: Found specification of procedure control_rx_demodulation_enable [2022-07-20 02:52:34,924 INFO L138 BoogieDeclarations]: Found implementation of procedure control_rx_demodulation_enable [2022-07-20 02:52:34,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-07-20 02:52:34,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-07-20 02:52:34,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 02:52:34,925 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-20 02:52:34,925 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-20 02:52:34,925 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_write [2022-07-20 02:52:34,925 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_write [2022-07-20 02:52:34,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 02:52:34,925 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_s_mbus_fmt [2022-07-20 02:52:34,925 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_s_mbus_fmt [2022-07-20 02:52:34,925 INFO L130 BoogieDeclarations]: Found specification of procedure set_volume [2022-07-20 02:52:34,925 INFO L138 BoogieDeclarations]: Found implementation of procedure set_volume [2022-07-20 02:52:34,925 INFO L130 BoogieDeclarations]: Found specification of procedure cx231xx_initialize [2022-07-20 02:52:34,925 INFO L138 BoogieDeclarations]: Found implementation of procedure cx231xx_initialize [2022-07-20 02:52:34,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-20 02:52:34,925 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_g_ext_ctrls [2022-07-20 02:52:34,925 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_g_ext_ctrls [2022-07-20 02:52:34,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-20 02:52:34,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-07-20 02:52:34,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-20 02:52:34,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 02:52:34,925 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-20 02:52:34,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-20 02:52:34,926 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-20 02:52:34,926 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-20 02:52:34,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-20 02:52:34,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-20 02:52:34,926 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-20 02:52:34,926 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-20 02:52:34,926 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_try_ext_ctrls [2022-07-20 02:52:34,926 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_try_ext_ctrls [2022-07-20 02:52:34,926 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata___0 [2022-07-20 02:52:34,926 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata___0 [2022-07-20 02:52:34,926 INFO L130 BoogieDeclarations]: Found specification of procedure irqenable_tx [2022-07-20 02:52:34,926 INFO L138 BoogieDeclarations]: Found implementation of procedure irqenable_tx [2022-07-20 02:52:34,926 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_subdev_queryctrl [2022-07-20 02:52:34,926 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_subdev_queryctrl [2022-07-20 02:52:34,926 INFO L130 BoogieDeclarations]: Found specification of procedure clock_divider_to_freq [2022-07-20 02:52:34,926 INFO L138 BoogieDeclarations]: Found implementation of procedure clock_divider_to_freq [2022-07-20 02:52:34,926 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_g_std [2022-07-20 02:52:34,926 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_g_std [2022-07-20 02:52:34,926 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_ir_rx_s_parameters [2022-07-20 02:52:34,926 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_ir_rx_s_parameters [2022-07-20 02:52:34,926 INFO L130 BoogieDeclarations]: Found specification of procedure to_state [2022-07-20 02:52:34,927 INFO L138 BoogieDeclarations]: Found implementation of procedure to_state [2022-07-20 02:52:34,927 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_g_register [2022-07-20 02:52:34,927 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_g_register [2022-07-20 02:52:34,927 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_s_register [2022-07-20 02:52:34,927 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_s_register [2022-07-20 02:52:34,927 INFO L130 BoogieDeclarations]: Found specification of procedure set_input [2022-07-20 02:52:34,927 INFO L138 BoogieDeclarations]: Found implementation of procedure set_input [2022-07-20 02:52:34,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-20 02:52:34,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-20 02:52:34,927 INFO L130 BoogieDeclarations]: Found specification of procedure cx23888_std_setup [2022-07-20 02:52:34,927 INFO L138 BoogieDeclarations]: Found implementation of procedure cx23888_std_setup [2022-07-20 02:52:34,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-20 02:52:34,927 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2022-07-20 02:52:34,927 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2022-07-20 02:52:34,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-20 02:52:34,927 INFO L130 BoogieDeclarations]: Found specification of procedure irqenable_rx [2022-07-20 02:52:34,927 INFO L138 BoogieDeclarations]: Found implementation of procedure irqenable_rx [2022-07-20 02:52:34,927 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_and_or4 [2022-07-20 02:52:34,927 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_and_or4 [2022-07-20 02:52:34,927 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_read [2022-07-20 02:52:34,927 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_read [2022-07-20 02:52:34,928 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_s_sliced_fmt [2022-07-20 02:52:34,928 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_s_sliced_fmt [2022-07-20 02:52:34,928 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_master_send [2022-07-20 02:52:34,928 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_master_send [2022-07-20 02:52:34,928 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_adapter_id [2022-07-20 02:52:34,928 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_adapter_id [2022-07-20 02:52:34,928 INFO L130 BoogieDeclarations]: Found specification of procedure clock_divider_to_carrier_freq [2022-07-20 02:52:34,928 INFO L138 BoogieDeclarations]: Found implementation of procedure clock_divider_to_carrier_freq [2022-07-20 02:52:34,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-20 02:52:34,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-20 02:52:34,928 INFO L130 BoogieDeclarations]: Found specification of procedure control_rx_s_edge_detection [2022-07-20 02:52:34,928 INFO L138 BoogieDeclarations]: Found implementation of procedure control_rx_s_edge_detection [2022-07-20 02:52:34,928 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-07-20 02:52:34,928 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-07-20 02:52:34,928 INFO L130 BoogieDeclarations]: Found specification of procedure cx25840_read4 [2022-07-20 02:52:34,928 INFO L138 BoogieDeclarations]: Found implementation of procedure cx25840_read4 [2022-07-20 02:52:34,928 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-07-20 02:52:34,928 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-07-20 02:52:34,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-20 02:52:34,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-20 02:52:34,928 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~TO~VOID [2022-07-20 02:52:34,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~TO~VOID [2022-07-20 02:52:34,929 INFO L130 BoogieDeclarations]: Found specification of procedure is_cx23885 [2022-07-20 02:52:34,929 INFO L138 BoogieDeclarations]: Found implementation of procedure is_cx23885 [2022-07-20 02:52:34,929 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_pulse_clocks [2022-07-20 02:52:34,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_pulse_clocks [2022-07-20 02:52:34,929 INFO L130 BoogieDeclarations]: Found specification of procedure is_cx23888 [2022-07-20 02:52:34,929 INFO L138 BoogieDeclarations]: Found implementation of procedure is_cx23888 [2022-07-20 02:52:34,929 INFO L130 BoogieDeclarations]: Found specification of procedure is_cx23887 [2022-07-20 02:52:34,929 INFO L138 BoogieDeclarations]: Found implementation of procedure is_cx23887 [2022-07-20 02:52:35,882 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 02:52:35,897 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 02:52:39,107 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-20 02:55:41,545 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 02:55:41,584 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 02:55:41,584 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-20 02:55:41,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:55:41 BoogieIcfgContainer [2022-07-20 02:55:41,595 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 02:55:41,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 02:55:41,597 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 02:55:41,599 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 02:55:41,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 02:52:30" (1/3) ... [2022-07-20 02:55:41,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ab39a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:55:41, skipping insertion in model container [2022-07-20 02:55:41,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:52:33" (2/3) ... [2022-07-20 02:55:41,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ab39a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:55:41, skipping insertion in model container [2022-07-20 02:55:41,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:55:41" (3/3) ... [2022-07-20 02:55:41,602 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-media-i2c-cx25840-cx25840.cil.i [2022-07-20 02:55:41,615 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 02:55:41,615 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-20 02:55:41,789 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 02:55:41,796 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@106c1756, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@632239bb [2022-07-20 02:55:41,797 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-20 02:55:41,823 INFO L276 IsEmpty]: Start isEmpty. Operand has 8434 states, 4832 states have (on average 1.1572847682119205) internal successors, (5592), 4859 states have internal predecessors, (5592), 3482 states have call successors, (3482), 117 states have call predecessors, (3482), 116 states have return successors, (3479), 3467 states have call predecessors, (3479), 3479 states have call successors, (3479) [2022-07-20 02:55:41,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-20 02:55:41,833 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:55:41,834 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-07-20 02:55:41,834 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)] === [2022-07-20 02:55:41,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:55:41,840 INFO L85 PathProgramCache]: Analyzing trace with hash 848135627, now seen corresponding path program 1 times [2022-07-20 02:55:41,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:55:41,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1759369058] [2022-07-20 02:55:41,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:55:41,856 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:55:41,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:55:41,867 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) [2022-07-20 02:55:41,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-20 02:55:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:55:43,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 1759 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:55:43,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:55:45,394 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-20 02:55:45,394 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 02:55:45,394 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:55:45,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1759369058] [2022-07-20 02:55:45,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1759369058] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 02:55:45,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 02:55:45,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 02:55:45,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726046093] [2022-07-20 02:55:45,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:55:45,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:55:45,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:55:45,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:55:45,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-20 02:55:45,437 INFO L87 Difference]: Start difference. First operand has 8434 states, 4832 states have (on average 1.1572847682119205) internal successors, (5592), 4859 states have internal predecessors, (5592), 3482 states have call successors, (3482), 117 states have call predecessors, (3482), 116 states have return successors, (3479), 3467 states have call predecessors, (3479), 3479 states have call successors, (3479) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-20 02:55:46,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:55:46,642 INFO L93 Difference]: Finished difference Result 16844 states and 25111 transitions. [2022-07-20 02:55:46,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 02:55:46,655 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 48 [2022-07-20 02:55:46,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:55:46,753 INFO L225 Difference]: With dead ends: 16844 [2022-07-20 02:55:46,753 INFO L226 Difference]: Without dead ends: 8426 [2022-07-20 02:55:46,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:55:46,824 INFO L413 NwaCegarLoop]: 12539 mSDtfsCounter, 12513 mSDsluCounter, 25070 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12514 SdHoareTripleChecker+Valid, 37609 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 02:55:46,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12514 Valid, 37609 Invalid, 16 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 02:55:46,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8426 states. [2022-07-20 02:55:50,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8426 to 8426. [2022-07-20 02:55:50,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8426 states, 4828 states have (on average 1.1555509527754764) internal successors, (5579), 4854 states have internal predecessors, (5579), 3479 states have call successors, (3479), 117 states have call predecessors, (3479), 116 states have return successors, (3476), 3464 states have call predecessors, (3476), 3476 states have call successors, (3476) [2022-07-20 02:55:50,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8426 states to 8426 states and 12534 transitions. [2022-07-20 02:55:50,219 INFO L78 Accepts]: Start accepts. Automaton has 8426 states and 12534 transitions. Word has length 48 [2022-07-20 02:55:50,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:55:50,221 INFO L495 AbstractCegarLoop]: Abstraction has 8426 states and 12534 transitions. [2022-07-20 02:55:50,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-20 02:55:50,222 INFO L276 IsEmpty]: Start isEmpty. Operand 8426 states and 12534 transitions. [2022-07-20 02:55:50,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-20 02:55:50,225 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:55:50,225 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-07-20 02:55:50,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-20 02:55:50,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:55:50,435 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:55:50,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:55:50,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1552207272, now seen corresponding path program 1 times [2022-07-20 02:55:50,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:55:50,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1086810356] [2022-07-20 02:55:50,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:55:50,437 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:55:50,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:55:50,448 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) [2022-07-20 02:55:50,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-20 02:55:52,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:55:52,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 1766 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:55:52,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:55:54,128 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-20 02:55:54,128 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:55:55,242 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-20 02:55:55,242 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:55:55,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1086810356] [2022-07-20 02:55:55,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1086810356] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:55:55,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:55:55,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:55:55,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881688702] [2022-07-20 02:55:55,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:55:55,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:55:55,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:55:55,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:55:55,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:55:55,244 INFO L87 Difference]: Start difference. First operand 8426 states and 12534 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-20 02:55:56,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:55:56,483 INFO L93 Difference]: Finished difference Result 8432 states and 12539 transitions. [2022-07-20 02:55:56,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:55:56,483 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 53 [2022-07-20 02:55:56,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:55:56,528 INFO L225 Difference]: With dead ends: 8432 [2022-07-20 02:55:56,528 INFO L226 Difference]: Without dead ends: 8430 [2022-07-20 02:55:56,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:55:56,535 INFO L413 NwaCegarLoop]: 12531 mSDtfsCounter, 12507 mSDsluCounter, 25047 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12513 SdHoareTripleChecker+Valid, 37578 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 02:55:56,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12513 Valid, 37578 Invalid, 16 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 02:55:56,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8430 states. [2022-07-20 02:55:59,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8430 to 8430. [2022-07-20 02:55:59,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8430 states, 4831 states have (on average 1.1554543572759264) internal successors, (5582), 4857 states have internal predecessors, (5582), 3479 states have call successors, (3479), 118 states have call predecessors, (3479), 117 states have return successors, (3476), 3464 states have call predecessors, (3476), 3476 states have call successors, (3476) [2022-07-20 02:55:59,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8430 states to 8430 states and 12537 transitions. [2022-07-20 02:55:59,162 INFO L78 Accepts]: Start accepts. Automaton has 8430 states and 12537 transitions. Word has length 53 [2022-07-20 02:55:59,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:55:59,164 INFO L495 AbstractCegarLoop]: Abstraction has 8430 states and 12537 transitions. [2022-07-20 02:55:59,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-20 02:55:59,164 INFO L276 IsEmpty]: Start isEmpty. Operand 8430 states and 12537 transitions. [2022-07-20 02:55:59,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-20 02:55:59,169 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:55:59,169 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-07-20 02:55:59,220 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-20 02:55:59,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:55:59,388 INFO L420 AbstractCegarLoop]: === Iteration 3 === 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)] === [2022-07-20 02:55:59,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:55:59,389 INFO L85 PathProgramCache]: Analyzing trace with hash 821128619, now seen corresponding path program 1 times [2022-07-20 02:55:59,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:55:59,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1314171571] [2022-07-20 02:55:59,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:55:59,390 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:55:59,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:55:59,397 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) [2022-07-20 02:55:59,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-20 02:56:00,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:00,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 1773 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:56:00,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:56:02,713 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-20 02:56:02,713 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:56:03,989 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-20 02:56:03,989 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:56:03,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1314171571] [2022-07-20 02:56:03,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1314171571] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:56:03,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:56:03,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:56:03,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597689874] [2022-07-20 02:56:03,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:56:03,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:56:03,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:56:03,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:56:03,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:56:03,991 INFO L87 Difference]: Start difference. First operand 8430 states and 12537 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-20 02:56:05,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:56:05,299 INFO L93 Difference]: Finished difference Result 8436 states and 12542 transitions. [2022-07-20 02:56:05,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:56:05,299 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2022-07-20 02:56:05,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:56:05,379 INFO L225 Difference]: With dead ends: 8436 [2022-07-20 02:56:05,379 INFO L226 Difference]: Without dead ends: 8434 [2022-07-20 02:56:05,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:56:05,396 INFO L413 NwaCegarLoop]: 12531 mSDtfsCounter, 12507 mSDsluCounter, 25047 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12512 SdHoareTripleChecker+Valid, 37578 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 02:56:05,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12512 Valid, 37578 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 02:56:05,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8434 states. [2022-07-20 02:56:08,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8434 to 8434. [2022-07-20 02:56:08,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8434 states, 4834 states have (on average 1.1553578816714936) internal successors, (5585), 4860 states have internal predecessors, (5585), 3479 states have call successors, (3479), 119 states have call predecessors, (3479), 118 states have return successors, (3476), 3464 states have call predecessors, (3476), 3476 states have call successors, (3476) [2022-07-20 02:56:08,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8434 states to 8434 states and 12540 transitions. [2022-07-20 02:56:08,853 INFO L78 Accepts]: Start accepts. Automaton has 8434 states and 12540 transitions. Word has length 58 [2022-07-20 02:56:08,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:56:08,854 INFO L495 AbstractCegarLoop]: Abstraction has 8434 states and 12540 transitions. [2022-07-20 02:56:08,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-20 02:56:08,855 INFO L276 IsEmpty]: Start isEmpty. Operand 8434 states and 12540 transitions. [2022-07-20 02:56:08,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-20 02:56:08,858 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:56:08,858 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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] [2022-07-20 02:56:08,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-20 02:56:09,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:56:09,084 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:56:09,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:56:09,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1891276219, now seen corresponding path program 1 times [2022-07-20 02:56:09,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:56:09,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1215525317] [2022-07-20 02:56:09,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:56:09,086 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:56:09,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:56:09,104 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) [2022-07-20 02:56:09,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-20 02:56:10,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:10,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 1800 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-20 02:56:10,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:56:15,307 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-20 02:56:15,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:56:19,718 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-20 02:56:19,718 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:56:19,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1215525317] [2022-07-20 02:56:19,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1215525317] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 02:56:19,718 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 02:56:19,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 18 [2022-07-20 02:56:19,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413536538] [2022-07-20 02:56:19,719 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 02:56:19,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-20 02:56:19,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:56:19,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-20 02:56:19,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-07-20 02:56:19,720 INFO L87 Difference]: Start difference. First operand 8434 states and 12540 transitions. Second operand has 18 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 6 states have call successors, (17), 2 states have call predecessors, (17), 5 states have return successors, (16), 7 states have call predecessors, (16), 6 states have call successors, (16) [2022-07-20 02:56:32,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:56:32,283 INFO L93 Difference]: Finished difference Result 16523 states and 24565 transitions. [2022-07-20 02:56:32,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-20 02:56:32,284 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 6 states have call successors, (17), 2 states have call predecessors, (17), 5 states have return successors, (16), 7 states have call predecessors, (16), 6 states have call successors, (16) Word has length 73 [2022-07-20 02:56:32,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:56:32,339 INFO L225 Difference]: With dead ends: 16523 [2022-07-20 02:56:32,339 INFO L226 Difference]: Without dead ends: 8448 [2022-07-20 02:56:32,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=119, Invalid=583, Unknown=0, NotChecked=0, Total=702 [2022-07-20 02:56:32,383 INFO L413 NwaCegarLoop]: 12508 mSDtfsCounter, 46 mSDsluCounter, 175028 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 187536 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-07-20 02:56:32,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 187536 Invalid, 499 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [39 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2022-07-20 02:56:32,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8448 states. [2022-07-20 02:56:35,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8448 to 8444. [2022-07-20 02:56:35,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8444 states, 4842 states have (on average 1.1551011978521273) internal successors, (5593), 4868 states have internal predecessors, (5593), 3481 states have call successors, (3481), 119 states have call predecessors, (3481), 118 states have return successors, (3478), 3466 states have call predecessors, (3478), 3478 states have call successors, (3478) [2022-07-20 02:56:35,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8444 states to 8444 states and 12552 transitions. [2022-07-20 02:56:35,099 INFO L78 Accepts]: Start accepts. Automaton has 8444 states and 12552 transitions. Word has length 73 [2022-07-20 02:56:35,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:56:35,099 INFO L495 AbstractCegarLoop]: Abstraction has 8444 states and 12552 transitions. [2022-07-20 02:56:35,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.764705882352941) internal successors, (47), 16 states have internal predecessors, (47), 6 states have call successors, (17), 2 states have call predecessors, (17), 5 states have return successors, (16), 7 states have call predecessors, (16), 6 states have call successors, (16) [2022-07-20 02:56:35,100 INFO L276 IsEmpty]: Start isEmpty. Operand 8444 states and 12552 transitions. [2022-07-20 02:56:35,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-20 02:56:35,101 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:56:35,101 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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] [2022-07-20 02:56:35,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-20 02:56:35,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:56:35,319 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-07-20 02:56:35,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:56:35,320 INFO L85 PathProgramCache]: Analyzing trace with hash -655923720, now seen corresponding path program 1 times [2022-07-20 02:56:35,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:56:35,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [538149768] [2022-07-20 02:56:35,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:56:35,322 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:56:35,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:56:35,327 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) [2022-07-20 02:56:35,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-20 02:56:36,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:36,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 1780 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:56:36,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 02:56:39,255 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-20 02:56:39,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 02:56:40,504 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-20 02:56:40,504 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-20 02:56:40,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [538149768] [2022-07-20 02:56:40,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [538149768] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-20 02:56:40,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 02:56:40,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-07-20 02:56:40,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2425101] [2022-07-20 02:56:40,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 02:56:40,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 02:56:40,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-20 02:56:40,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 02:56:40,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 02:56:40,506 INFO L87 Difference]: Start difference. First operand 8444 states and 12552 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-20 02:56:41,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 02:56:41,543 INFO L93 Difference]: Finished difference Result 8450 states and 12557 transitions. [2022-07-20 02:56:41,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 02:56:41,544 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 63 [2022-07-20 02:56:41,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 02:56:41,682 INFO L225 Difference]: With dead ends: 8450 [2022-07-20 02:56:41,682 INFO L226 Difference]: Without dead ends: 8448 [2022-07-20 02:56:41,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-20 02:56:41,686 INFO L413 NwaCegarLoop]: 12531 mSDtfsCounter, 12507 mSDsluCounter, 25047 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12511 SdHoareTripleChecker+Valid, 37578 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 02:56:41,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12511 Valid, 37578 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 02:56:41,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8448 states. [2022-07-20 02:56:44,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8448 to 8448. [2022-07-20 02:56:44,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8448 states, 4845 states have (on average 1.1550051599587203) internal successors, (5596), 4871 states have internal predecessors, (5596), 3481 states have call successors, (3481), 120 states have call predecessors, (3481), 119 states have return successors, (3478), 3466 states have call predecessors, (3478), 3478 states have call successors, (3478) [2022-07-20 02:56:44,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8448 states to 8448 states and 12555 transitions. [2022-07-20 02:56:44,307 INFO L78 Accepts]: Start accepts. Automaton has 8448 states and 12555 transitions. Word has length 63 [2022-07-20 02:56:44,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 02:56:44,307 INFO L495 AbstractCegarLoop]: Abstraction has 8448 states and 12555 transitions. [2022-07-20 02:56:44,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-20 02:56:44,308 INFO L276 IsEmpty]: Start isEmpty. Operand 8448 states and 12555 transitions. [2022-07-20 02:56:44,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-20 02:56:44,308 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 02:56:44,308 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 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] [2022-07-20 02:56:44,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-20 02:56:44,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-20 02:56:44,522 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)] === [2022-07-20 02:56:44,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 02:56:44,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1754354293, now seen corresponding path program 1 times [2022-07-20 02:56:44,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-20 02:56:44,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1506061470] [2022-07-20 02:56:44,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 02:56:44,524 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-20 02:56:44,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-20 02:56:44,526 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) [2022-07-20 02:56:44,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-20 02:56:46,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 02:56:46,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 1787 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-20 02:56:46,062 INFO L286 TraceCheckSpWp]: Computing forward predicates...